B2B Software and Services Startups funded by Y Combinator (YC) 2026

January 2026

Browse 2407 of the top B2B Software and Services startups funded by Y Combinator.

We also have a Startup Directory where you can search through over 5,000 companies.

  • Flock Safety
    Flock Safety
    Y Combinator LogoS2017
    Active • 1,000 employees • Atlanta, GA, USA
    Flock Safety provides the first public safety operating system that empowers private communities and law enforcement to work together to eliminate crime. We are committed to protecting human privacy and mitigating bias in policing with the development of best-in-class technology rooted in ethical design, which unites civilians and public servants in pursuit of a safer, more equitable society. Our Safety-as-a-Service approach includes affordable devices powered by LTE and solar that can be installed anywhere. Our technology detects and captures objective details, decodes evidence in real-time and delivers investigative leads into the hands of those who matter. While safety is a serious business, we are a supportive team that is optimizing the remote experience to create strong and fun relationships even when we are physically apart. Our flock of hard-working employees thrive in a positive and inclusive environment, where a bias towards action is rewarded. Flock Safety is headquartered in Atlanta and operates nationwide. We have raised $150M in our Series E led by Tiger Global at a $3.5B valuation.
    hardware
    saas
    machine-learning
  • Odeko
    Odeko
    Y Combinator LogoS2019
    Active • 371 employees • New York, NY, USA
    We’re a passionate team of dreamers and builders, determined to liberate small businesses from the not-so-fun aspects of the job so that they can focus on what’s fun and important.
    logistics
    b2b
  • Nowports
    Nowports
    Y Combinator LogoW2019
    Active • 550 employees
    Nowports is the first digital Freight Forwarder shipping ocean containers to and from Latin America. One out of every two containers gets lost or delayed due to miscommunication and lack of management. The platform reduces human mistakes to 0% and saves up to 40% of delays with Nowports models and algorithms. Nowports assist companies so moving ocean containers is fast, simple and secure.
  • Deel
    Deel
    Y Combinator LogoW2019
    Active • 5,000 employees • San Francisco, CA, USA
    Deel is the all-in-one payroll and HR platform for global teams. Built for the way the world works today, Deel combines HRIS, payroll, compliance, benefits, performance, and equipment management into one seamless platform. With AI-powered tools and a fully owned payroll infrastructure, Deel supports every worker type in 120+ countries—helping businesses scale smarter, faster, and more compliantly. Discover how Deel makes global work simple at deel.com.
    hr-tech
    b2b
    saas
    payroll
    fintech
  • Faire
    Faire
    Y Combinator LogoW2017
    Active • 900 employees • San Francisco, CA, USA
    Faire is an innovative online marketplace that uses machine learning to match local retailers with the brands and products that uniquely fit their stores. We are using the power of technology to connect brands and independent retailers from all over the world, building a thriving community of hundreds of thousands of retailers, which has resulted in over 7 million new connections to date. Faire was founded on the belief that the future of retail is local. Our mission is to empower brands and retailers to strengthen the unique character of local communities. Our data-driven approach unburdens retailers from decades-old obstacles by helping find the right products for their shop. Plus, our straight-forward financial terms level the playing field by eliminating inventory risk and providing access to capital—key offerings previously only available to big box chains. For brands, our platform provides powerful sales, marketing, and analytics tools that simplify their business and allow them to focus on what they love: making great products.
    marketplace
    retail
  • Rippling
    Rippling
    Y Combinator LogoW2017
    Active • 2,500 employees • San Francisco, CA, USA
    Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, benefits, and computers. For the first time ever, you can manage and automate every part of the employee lifecycle in a single system. Take onboarding, for example. With Rippling, you can hire a new employee anywhere in the world and set up their payroll, corporate card, computer, benefits, and even third-party apps like Slack and Microsoft 365—all within 90 seconds. Based in San Francisco, CA, Rippling has raised $1.2B from the world’s top investors—including Kleiner Perkins, Founders Fund, Sequoia, Greenoaks and Bedrock.
    hr-tech
  • Bird
    Bird
    Y Combinator LogoS2016
    Active • 500 employees • Amsterdam, Netherlands
    The world’s largest omnichannel communications platform. Bird CRM powers communication between businesses and their customers — across any channel, always with the right context, and on every corner of the planet. Its products and solutions are the foundational building blocks to business communications across preferred channels, like SMS, Voice, WhatsApp, WeChat, Messenger, Email and more. Founded in 2011, Bird connects to billions of devices and is trusted by nearly 20,000 customers worldwide. Headquartered in Amsterdam, Bird operates across nine global hubs — including Singapore, Dublin, Shanghai, Sydney, London, Bogota and Asuncion — and is proud to be a “Work Anywhere” company. Its team of 500 employees represent more than 55 nationalities.
    messaging
    api
  • Scale AI
    Scale AI
    Y Combinator LogoS2016
    Active • 500 employees • San Francisco, CA, USA
    Scale accelerates the development of AI within organizations of any size to deliver critical business insights and operational efficiency. Its data-centric infrastructure platform leverages RLHF (Reinforced Learning with Human Feedback) to help organizations build the strongest AI models that supercharge their business, with customers across industries including Meta, Microsoft, U.S. Army, DoD’s Defense Innovation Unit, Open AI, General Motors, Toyota Research Institute, Brex, Instacart and Flexport.
    artificial-intelligence
    machine-learning
  • Meesho
    Meesho
    Y Combinator LogoS2016
    Public • 1,450 employees • Bengaluru, Karnataka, India
    Meesho is India’s only true online marketplace, altering the status quo to make e-commerce inclusive and accessible for the next billion users. With a vision to enable 100 million small businesses, including individual entrepreneurs, to succeed online, Meesho is democratising internet commerce and bringing a range of products and new customers online. The Meesho marketplace provides sellers access to millions of customers, selections from over 30 categories, pan-India logistics, payment services and customer support capabilities to efficiently run their businesses.
    retail
    e-commerce
  • Podium
    Podium
    Y Combinator LogoW2016
    Active • 1,000 employees • Lehi, UT, USA
    Podium is the all-in-one AI-powered lead management and communication platform used by more than 100,000 businesses to acquire and convert new customers. At the forefront of Podium’s innovation is its AI employee, who ensures businesses respond to leads instantly, anytime of the day or night—significantly increasing lead conversion rates and revenue. Podium helps businesses obtain more reviews, rank higher on Google, and consolidate lead channels. Businesses can call and text customers from the web and/or mobile app, send payment links, drive repeat business through bulk messages, and more—all managed and delivered from one easy-to-use dashboard. Additionally, with Podium’s AI Employee and automations, businesses can efficiently handle customer inquiries seamlessly across all communication channels, providing timely and accurate responses that drive sales. Podium’s innovative work has gained recognition on top industry lists, such as Forbes’ Next Billion Dollar Startups, Forbes’ Cloud 100, the Inc. 5000, and Fast Company’s World’s Most Innovative Companies. Podium was founded in 2014 and is headquartered in Lehi, Utah. It is currently backed by Accel, Summit Partners, GV (formerly Google Ventures), and Y Combinator.
    ai
    saas
    b2b
    fintech
  • Go1
    Go1
    Y Combinator LogoS2015
    Active • 650 employees • San Francisco, CA, USA
    In today’s environment, employees need training to ensure business compliance, skill development and to support an engaged workforce. Go1 brings together content from the world’s top training providers and makes it easy to access in whichever platform your organization uses. This makes it easier to deliver, manage and engage with training. Go1 also works with existing LMS, HRIS, and business systems to make learning simpler and more effective.
    elearning
  • GitLab
    GitLab
    Y Combinator LogoW2015
    Public • 2,000 employees • San Francisco, CA, USA
    GitLab is the first single application for the entire DevOps lifecycle. Only GitLab enables Concurrent DevOps, unlocking organizations from the constraints of today’s toolchain. GitLab provides unmatched visibility, radical new levels of efficiency and comprehensive governance to significantly compress the time between planning a change and monitoring its effect. This makes the software lifecycle 200% faster, radically improving the speed of business. GitLab and Concurrent DevOps collapses cycle times by driving higher efficiency across all stages of the software development lifecycle. For the first time, Product, Development, QA, Security, and Operations teams can work concurrently in a single application. There’s no need to integrate and synchronize tools, or waste time waiting for handoffs. Everyone contributes to a single conversation, instead of managing multiple threads across disparate tools. And only GitLab gives teams complete visibility across the lifecycle with a single, trusted source of data to simplify troubleshooting and drive accountability. All activity is governed by consistent controls, making security and compliance first-class citizens instead of an afterthought. Built on Open Source, GitLab leverages the community contributions of thousands of developers and millions of users to continuously deliver new DevOps innovations. More than 100,000 organizations from startups to global enterprise organizations, including Ticketmaster, Jaguar Land Rover, NASDAQ, Dish Network and Comcast trust GitLab to deliver great software at new speeds.
    open-source
    developer-tools
    devsecops
  • GrubMarket
    GrubMarket
    Y Combinator LogoW2015
    Active • 4,548 employees • San Francisco, CA, USA
    GrubMarket is the AI-powered technology enabler and digital transformer of American Food Supply Chain industry. Our mission is to build and provide the eCommerce and software technologies to this industry, to transform this completely offline and highly manual industry into modernized online industry powered by software technologies, and improve the efficiency of American food supply chain.
    agriculture
    food-tech
    e-commerce
    supply-chain
  • ShipBob
    ShipBob
    Y Combinator LogoS2014
    Active • 1 employees • Chicago, IL, USA
    ShipBob is a leading global fulfillment and supply chain platform designed for SMB and Mid-Market ecommerce brands. ShipBob provides brands a single view of their business and customers across sales channels to manage products, inventory, orders, and shipments, leveraging real-time analytics and reporting, dedicated support, and access to hundreds of technology and retail partners. ShipBob enables brands to improve the operations in their own facilities with ShipBob WMS (ShipBob's proprietary warehouse management system), and/or outsource fulfillment to have their orders picked, packed, and shipped from any of ShipBob’s 50+ fulfillment centers across the United States, Canada, Europe, and Australia. Founded in 2014, ShipBob launched through Y Combinator by co-founders Dhruv Saxena and Divey Gulati, two ecommerce entrepreneurs who saw a need for more efficient SMB supply chain services. Learn more by visiting shipbob.com.
    logistics
    e-commerce
  • Checkr
    Checkr
    Y Combinator LogoS2014
    Active • 800 employees • San Francisco, CA, USA
    Checkr builds people infrastructure for the future of work. And we believe everyone should have a fair chance to work. That's why we've designed a faster—and fairer—way to screen job seekers. For more information on our mission and products, visit https://checkr.com.
    compliance
    enterprise-software
    api
    hr-tech
    artificial-intelligence
  • Algolia
    Algolia
    Y Combinator LogoW2014
    Active • 810 employees • San Francisco, CA, USA
    Our mission is to make every search interaction meaningful & rewarding, through developer-friendly and enterprise-grade APIs. Algolia is the leading Search & Discovery API for websites and mobile apps. We help the most innovative companies across e-commerce, media and SaaS industries create powerful, relevant and scalable discovery experiences for their users. Unlike other solutions, our hosted platform reduces the complexities of building and scaling a fast, relevant digital experience and helps teams accelerate development time. More than 9,000 companies like Under Armour, Twitch, Periscope, Medium and Stripe rely on Algolia to manage 50+ billion search queries a month. Founded in 2012, we're backed by $184M in funding from Accel Partners, Alven Capital, Point Nine Capital and Storm Ventures. The team is headquartered in San Francisco with offices in Paris, London, New York, and Atlanta. To learn more, visit www.algolia.com. --- We’re looking for talented, passionate people to build the world’s best search technology. As an ownership-driven company, we seek team members who thrive under autonomy and diversity. We're committed to building an inclusive and diverse workplace. We care about each other and the world around us, and embrace talented people regardless of their race, age, ancestry, religion, sex, gender identity, sexual orientation, marital status, color, veteran status, disability and socioeconomic background
    developer-tools
    saas
    b2b
  • Weave
    Weave
    Y Combinator LogoW2014
    Public • 600 employees • Lehi, UT, USA
    As the pace of innovation continues, it is growing more difficult to see the value of technology. Often meaningful information is inaccessible at the time it would be most beneficial. Weave threads together data, software and communication platforms to build stronger relationships at the point of contact by making valuable information instantly available in simple and intuitive formats. This delivers improved productivity, better collaboration and greater insights making it easier to meet the needs of patients and to build better business and clinical outcomes.
    saas
  • Flexport
    Flexport
    Y Combinator LogoW2014
    Active • 3,000 employees • San Francisco, CA, USA
    Founded in 2013, we believe trade can move the human race forward. That’s why our mission at Flexport is to make global trade easy for everyone. What the internet has done for bits and bytes, Flexport is doing for physical goods: giving every business the ability to connect to any customer, wherever they are in the world. That sounds pretty straightforward, but a fragmented and inefficient global supply chain has held the world back from untapped growth and innovation. By connecting everyone in the global economy we can unlock commerce, creativity, and human progress. To do so, we’re building the platform for global logistics—empowering buyers, sellers and their logistics partners with the technology and services they need to grow and innovate. Today, we work with more than 40,000 customers and their suppliers across industries like manufacturing, retail, electronics, consumer goods, tech, apparel, and beauty. Companies of all sizes—from emerging brands to Fortune 500s—used Flexport technology to move nearly $19B of merchandise across 112 countries in 2021. Interested in joining our team? Check out our open job postings on careers site and apply directly today! https://www.flexport.com/careers/jobs/
    supply-chain
    saas
    logistics
  • Webflow
    Webflow
    Y Combinator LogoS2013
    Active • 600 employees • San Francisco, CA, USA
    Webflow is the leading no-code visual web development platform. It seamlessly generates sophisticated code so anyone can build powerful web-based businesses and adapt to changes without developers or months of building. From entrepreneurs and creative agencies to Fortune 500 companies, Webflow makes the internet a more inclusive place by making the tools to build on it more accessible to more people, fueling business growth. Webflow powers websites for innovators like Discord, Monday.com, IDEO, Orange Theory Fitness, TED, and Dropbox. Webflow is backed by Y Combinator, Accel, CapitalG, Silversmith, and other awesome investors.
    saas
    marketing
    design
  • Fivetran
    Fivetran
    Y Combinator LogoW2013
    Active • 1,200 employees • Oakland, CA, USA
    Fivetran automates data movement out of, into and across cloud data platforms. We automate the most time-consuming parts of the ELT process from extracts to schema drift handling to transformations, so data engineers can focus on higher-impact projects with total pipeline peace of mind. With 99.9% uptime and self-healing pipelines, Fivetran enables hundreds of leading brands across the globe, including Autodesk, Conagra Brands, JetBlue, Lionsgate, Morgan Stanley, and Ziff Davis, to accelerate data-driven decisions and drive business growth. Fivetran is headquartered in Oakland, California, with offices around the world. 
    data-engineering
    saas
    analytics
    b2b
  • Benchling
    Benchling
    Y Combinator LogoS2012
    Active • 750 employees • San Francisco, CA, USA
    Biotechnology is rewriting life as we know it, from the medicines we take, to the crops we grow, the materials we wear, and the household goods that we rely on every day. Biotech R&D is radically transforming our world, but to move at the new speed of science, scientists need better technology. Benchling’s mission is to unlock the power of biotechnology. The world’s biotech leaders and innovators use our R&D Cloud to power the development of breakthrough products and accelerate time to milestone and market.
    b2b
    saas
    biotech
  • Zapier
    Zapier
    Y Combinator LogoS2012
    Active • 700 employees • Mountain View, CA, USA
    Founded in 2011, Zapier is the #1 workflow automation platform for small and mid-sized businesses. By connecting more than 6,000 of the most popular work apps, Zapier empowers its users to make the most of the tools they already use—and to focus on what matters most.
    saas
    b2b
    automation
  • Dropbox
    Dropbox
    Y Combinator LogoS2007
    Public • 4,000 employees • San Francisco, CA, USA
    Dropbox is building the world’s first smart workspace. Back in 2007, making work better for people meant designing a simpler way to keep files in sync. Today, it means designing products that reduce busywork so you can focus on the work that matters. Most “productivity tools” get in your way. They constantly ping, distract, and disrupt your team’s flow, so you spend your days switching between apps and tracking down feedback. It’s busywork, not the meaningful stuff. We want to change this. We believe there’s a more enlightened way to work. Dropbox helps people be organized, stay focused, and get in sync with their teams.
  • Mixpanel
    Mixpanel
    Y Combinator LogoS2009
    Active • 410 employees • San Francisco, CA, USA
    Mixpanel is analytics for builders that need answers from their data at their fingertips. When everyone in the organization can see — and learn from — the impact of their work, they are poised to make better decisions. Companies like OpenAI, Netflix, Pinterest, sweetgreen, CNN, samsara, Uber, and Yelp use Mixpanel to understand their customers, measure progress, and endeavor to make better decisions.
    analytics
    databases
    cloud-computing
    data-visualization
    b2b
  • PagerDuty
    PagerDuty
    Y Combinator LogoS2010
    Public • 950 employees • San Francisco, CA, USA
    PagerDuty is an operations performance platform delivering visibility and actionable intelligence across the entire incident lifecycle. Their SaaS-based solution empowers over 10,000 small, mid-size and enterprise global customers such as Comcast, eHarmony, Slack and Lululemon with the insight to intelligently respond to critical disruptions for exceptional customer experience. PagerDuty was founded to deliver a new and innovative approach to increase business response and efficiency. When brand reputation depends on customer satisfaction, PagerDuty arms businesses with the insight to proactively manage incidents and events that may impact customers across their IT environment.
    monitoring
    devops
  • Amplitude
    Amplitude
    Y Combinator LogoW2012
    Public • 750 employees • San Francisco, CA, USA
    Since graduating from YC, Amplitude (W12) has made it to IPO and beyond by helping cutting edge startups become category leaders. We’ve pioneered the digital analytics category to become the go-to solution for AI pioneers (Cruise, Midjourney), apps that touch millions of consumers (Doordash, Coinbase), and the best in B2B (Atlassian, Rippling, Canva). With product analytics, experiment, CDP, session replay, and more, Amplitude’s digital analytics platform shows you what your users love, where they’re getting stuck, and what keeps them coming back. You want to build a generational business, and we have the capabilities and pricing plans to guide you every step of the way. Check out our special deal for YC companies and get started on your analytics journey.
    b2b
    analytics
    data-visualization
    developer-tools
    marketing
  • Gusto
    Gusto
    Y Combinator LogoW2012
    Active • 2,400 employees • San Francisco, CA, USA
    Launched in 2012 as ZenPayroll, Gusto serves more than 300,000 businesses nationwide. Each year we process tens of billions of dollars of payroll and provide employee benefits—like health insurance and 401(k) accounts—while helping companies create incredible work places. Through one refreshingly easy, integrated platform, we automate and simplify your payroll, benefits, and HR, all while providing expert support. You and your employees will get the peace of mind you need to do your best work.
    b2b
    payroll
    health-insurance
  • Optimizely
    Optimizely
    Y Combinator LogoW2010
    Acquired • 1,500 employees • San Francisco, CA, USA
    At Optimizely, we're on a mission to help people unlock their digital potential. We do that by reinventing how marketing and product teams work to create and optimize digital experiences across all channels. With Optimizely One, our industry-first operating system for marketers, we offer teams flexibility and choice to build their stack their way with our fully SaaS, fully decoupled, and highly composable solution. We help companies around the world orchestrate their entire content lifecycle, monetize every digital experience and experiment across all customer touchpoints – all through Optimizely One, the leading digital experience platform that powers every phase of the marketing lifecycle through a single, AI-accelerated workflow. Optimizely has nearly 1500 employees across our 21 global offices and has 700+ partners. We are proud to help more than 10,000 businesses, including H&M, PayPal, Zoom, and Toyota, enrich their customer lifetime value, increase revenue and grow their brands. At Optimizely, we live each day with a simple philosophy: large enough to serve, small enough to care. Learn more at optimizely.com.
    marketing
  • 10x Science
    10x Science
    Y Combinator LogoW2026
    Active • 3 employees • San Francisco, CA, USA
    Our mission at 10x Science is to enable biopharmaceutical development to keep pace with AI-powered drug discovery. Thanks to AI, the front end of drug discovery is flooding the pipeline with new drug candidates. However, current solutions for drug development are unable to resolve drug complexity and cannot keep up with modern demand. Our platform is the unlock for this bottleneck. By applying modern AI to the development stage, specifically to protein characterization and quality assessment, we provide an end-to-end solution to dramatically speed up and scale up the preparation of candidates for the clinic. Our team is composed of Stanford University researchers from a Nobel Laureate's lab with 18+ years of collective domain expertise, 47+ scientific publications, and a 2x YC Founder. We move at the highest velocity and are positioned to lead the next-generation of modern AI drug development.
    biotech
    enterprise-software
    b2b
    saas
    ai
  • Ishiki Labs
    Ishiki Labs
    Y Combinator LogoW2026
    Active • 2 employees
    We're building Fern - a multimodal AI that listens and watches continuously, understands context over time, and acts with human-like judgment — proactively guiding you in the moment when needed, and staying out of the way when not.
    artificial-intelligence
    deep-learning
    generative-ai
  • Bizzy AI
    Bizzy AI
    Y Combinator LogoS2025
    Active • San Francisco, CA, USA
    Bizzy handles your calls, captures and qualifies leads, and books appointments directly into your CRM. It understands your services better than a receptionist would, routes and escalates calls, and syncs with your existing tools to incorporate complex workflows, all so your team can focus on servicing leads, not qualifying them.
    workflow-automation
    marketing
    sales
    ai
  • Coevolved
    Coevolved
    Y Combinator LogoW2026
    Active • 2 employees
    A next generation multi-agent framework for designing, deploying, and scaling agent systems with clear, composable architectures. Built to make multi-agent systems fast, observable, and production ready from day one, with support for fully managed inference.
    generative-ai
    aiops
  • Cardboard
    Cardboard
    Y Combinator LogoW2026
    Active • 2 employees • San Francisco, CA, USA
    Cardboard is an agentic video editor for growth/marketing teams and serious creators who need to ship videos consistently. Instead of agencies, long timelines, and infinite review cycles, teams give cardboard a footage + a goal (“3 variants”, “30s hook”, “testimonials”) to get a strong first cut in minutes on which they can iterate quickly. Multimodal LLMs can finally reason over footage, and WebGPU/WebCodecs make a real NLE possible in the browser. For the first time, an “AI director” inside a professional editor can be a reality. We have to build two hard things at once: a high-performance editor in the browser and an agentic editor that is reliable for production use cases. Most startups do one; incumbents can’t rebuild their stack without breaking everything. Saksham and Ishan met in school and have known each other since 15 years. Saksham was Co-founder/CTO of Iterate AI (backed by EF) and posts content on social media; Ishan has spent ~5yr building memory-heavy, performance-critical browser apps at HackerRank (S11) and deeply understands browsers. He has built Hotspoter (5M+ downloads) when he was 14. Together, we’re unusually suited to build the editor core others avoid. Video is becoming the default distribution channel, and the team that iterates fastest compounds attention. Cardboard becomes the default workspace for video production, the way Canva/Figma became the workspace for design - because it’s collaborative, fast, and does the tedious parts for you.
    video
    artificial-intelligence
    media
    saas
  • Fed10
    Fed10
    Y Combinator LogoW2026
    Active • 3 employees • San Francisco, CA, USA
    Fed10 is a legislative consulting firm staffed by AI agents. We monitor every bill across the U.S., flag threats to your business, and deliver actionable insights — the same work a $500/hr policy consultant does, but in seconds instead of days. Built by three ex-lobbyists who passed legislation together.
    b2b
    govtech
    ai
  • Chamber
    Chamber
    Y Combinator LogoW2026
    Active • 4 employees • San Francisco, CA, USA
    Chamber puts your AI infrastructure on autopilot. Our agentic AI enabled platform orchestrates, governs, and optimizes your AI infrastructure so teams can run ~50% more workloads on the same GPUs without manual intervention. It operates like an autonomous infrastructure team: continuously monitoring GPU clusters, forecasting demand, detecting unhealthy nodes, and reallocating resources in real time to where they create the most impact. Your ML teams move faster, infra waste drops, and GPU bottlenecks disappear.
    ai
    artificial-intelligence
    b2b
    enterprise-software
    developer-tools
  • Arcline
    Arcline
    Y Combinator LogoW2026
    Active • 5 employees • San Francisco, CA, USA
    If you’re tired of spending $ X0k+ and months on ESOP, contracts, compliance, fundraising, cross-border work, employment, or tech, we built Arcline for you. Arcline’s 50+ AI-native lawyers works at startup speed and price. So you can sell, raise, hire, and launch in hours, not months. Arcline lawyers are trained at top schools (Harvard, Stanford, Oxford) and leading firms (Cooley, Goodwin, Fenwick). Trusted by founders backed by YC, Sequoia, a16z, Founders Fund. We’re delivering the same top tier legal help to you, without the usual delay or cost. Think of us as your fractional in-house legal team, ready to deploy when needed. Discover Arcline if you want legal to stop being the bottleneck or crippling your runway.
    compliance
    legaltech
    artificial-intelligence
    legal
    marketplace
  • Laurence
    Laurence
    Y Combinator LogoW2026
    Active • 2 employees
    Advertising today is like trading in the 1980s pits: archaic, manual, and iterative guesswork. Humans update bids and keywords using noisy, delayed data with fixed rules that both break at scale and ignore stochasticity. We've built quantitative systems that advertise the way modern hedge-funds trade markets: continuous decision-making under stochastic outcomes and explicit profit constraints. Our models systematically price bids, allocate budgets, and adjust targeting based on observed conversion signals and uncertainty. Starting with Amazon, we are automating $2.5M in live ad spend, increasing gross sales while decreasing advertising cost of sales by 40%.
    advertising
    trading
  • Tensol
    Tensol
    Y Combinator LogoW2026
    Active • 2 employees • San Francisco, CA, USA
    Tensol is the AI-native operating system for hospitality. We replace legacy hotel ERPs and back-office software with one system that runs guest communications, bookings, reviews, procurement, and invoicing in a single place, where AI agents answer guest messages, send quotes and confirmations, update bookings, respond to reviews, and log everything directly in the system. We’re starting with guest communications and review management, where AI agents handle inbound guest requests and reviews end-to-end, making front-office teams 3x more productive, resolving 80% of inquiries automatically, increasing upsells and brand reputation.
    b2b
    enterprise-software
    artificial-intelligence
    saas
  • Corelayer
    Corelayer
    Y Combinator LogoW2026
    Active • 2 employees • San Francisco, CA, USA
    We’re building AI agents that do on-call support for data-heavy industries like financial services and fintech, healthcare, and insurance. On-call engineers in these industries need to inspect data to debug production issues. We monitor both data and infrastructure for issues and use AI agents to debug and suggest fixes in minutes. Data is especially sensitive in regulated industries, so we offer on-prem deployments and hardware-backed secure environments that let agents safely use production data as context while debugging. Mitch and Shipra founded Corelayer after building data infrastructure together at Goldman Sachs, where they spent many late nights and weekends debugging systems that processed 100s of billions of rows a day.
    enterprise-software
    ai
    developer-tools
  • RamAIn
    RamAIn
    Y Combinator LogoW2026
    Active • 2 employees • San Francisco, CA, USA
    RamAIn is your real-life Jarvis that works out-of-the-box on your favorite applications including WhatsApp Desktop, Outlook and more. Just tell it what to do sit back and watch it work just like you, intelligently simulating mouse and keyboard clicks to achieve your goals. Current CUAs all follow the same decision loop: screenshot, VLM, decision, repeat. This is expensive, unreliable and slow. We build infrastructure to pre-train CUAs on specific interfaces allowing them to intelligently use the computer super-duper fast.
    artificial-intelligence
    machine-learning
    computer-vision
  • Visibl Semiconductors
    Visibl Semiconductors
    Y Combinator LogoW2026
    Active • 2 employees • San Francisco, CA, USA
    Visibl is an on-prem AI platform that turns compute into chip design capacity. As chips grow more complex, adding engineers yields diminishing returns — coordination costs rise while progress slows. The bottleneck is no longer ideas, but execution throughput. Visibl turns compute into a teammate. Our AI-native IDE ingests the full design context (code, specs, scripts, tool outputs) to decode ambiguous tool feedback into actionable steps. We validate changes and package decisions for review, resulting in safer changes, shorter iteration cycles, and fewer late surprises on the path to tapeout.
    semiconductors
    enterprise-software
    ai
  • SideKit
    SideKit
    Y Combinator LogoW2026
    Active • 2 employees • San Francisco, CA, USA
    It's never been easier to turn ideas into apps, it should be just as easy to take those apps to production. SideKit provides one SDK to manage app versions, set feature flags and install privacy-first analytics to track usage. Update broke your paywall? One click to block the version. Made a breaking change and don't want users on your old version? One click to set a minimum version. Version gating is also completely free regardless of how many users you have.
    api
    infrastructure
    enterprise-software
  • Veriad
    Veriad
    Y Combinator LogoW2026
    Active • 2 employees • San Francisco, CA, USA
    Veriad is building AI compliance officers for enterprises. Our agent analyze documents, media, and processes against regulations, industry precedents, and internal policies - flagging what's compliant, what's not, and why. Rohan and Anton founded Veriad after building and selling internal compliance tools to Fortune 500 companies.
    compliance
    b2b
    marketing
  • RunAnywhere
    RunAnywhere
    Y Combinator LogoW2026
    Active • 2 employees • San Francisco, CA, USA
    Edge AI is inevitable, but shipping it is painful: every device class behaves differently, runtimes vary, models are huge, and performance collapses under memory/power constraints. RunAnywhere turns that into an enterprise-ready workflow: one SDK to run models on-device, plus a control plane to manage models, enforce policies, and measure outcomes across thousands of devices.
    ai
    developer-tools
    enterprise
  • Clice AI
    Clice AI
    Y Combinator LogoW2026
    Active • 2 employees • San Francisco, CA, USA
    Clice gives everyone on your team a personal AI agent that actually executes. Every agent knows their person's context, and every agent can talk to each other. Need an answer from someone who's offline? Your agent asks their agent. A bug gets fixed in prod? Your agent updates the ticket and responds to the thread. Need to meet before launch? Your agent coordinates with theirs and books it. Sales, eng, ops. If it involves communicating or coordinating across people, Clice handles it. You focus on the work that actually matters.
    sales
    operations
    automation
    b2b
    productivity
  • Arzule
    Arzule
    Y Combinator LogoW2026
    Active • 2 employees • San Francisco, CA, USA
    Multi-agent systems fail quietly today due to state drift, broken assumptions, and coordination breakdowns. Arzule ingests failed traces from tools like CrewAI, LangChain, Claude Code, and custom stacks, finds coordination failures, and generates a corrected trace. Users can approve or deny the correction so Arzule learns what “good” looks like in the context of the current project. It provides observability, debugging tools, failure detection, and patch plans that can be dropped back into agent workflows to improve costs, efficiency, and quality. Additionally, Arzule is currently offering early access to synthetic creation and labeling of multi-agent coordination tasks for companies who reach out.
    saas
    data-labeling
    b2b
    ai
  • Burt
    Burt
    Y Combinator LogoW2026
    Active • 2 employees • San Francisco, CA, USA
    We help teams fine tune and deploy models specialized for their domain and use cases. Generalist, proprietary models like gpt-5 and claude are impressive and have their place but for your most important tasks you need your AI agents to be powered by models that are specialists. Models you own, trained on your data, that can continuously improve for your use cases.
    artificial-intelligence
    machine-learning
    reinforcement-learning
  • Lexius
    Lexius
    Y Combinator LogoW2026
    Active • 3 employees • San Francisco, CA, USA
    We turn existing store security cameras into an AI system that catches shoplifting in real time and alerts staff before thieves leave.
    artificial-intelligence
    computer-vision
    saas
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