SaaS Startups funded by Y Combinator (YC) in Seattle 2024

December 2024

Browse 11 of the top SaaS startups funded by Y Combinator. Headquartered in Seattle, these are some of the hottest and fastest-growing startups.

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

  • RescueTime
    RescueTime (w2008)Active • 15 employees • Seattle, WA, USA
    RescueTime helps you set boundaries, protect focused work time, and achieve work/life balance by shedding light on how you spend your time, improving your focus, and helping you find more time for the things that matter most. We are a distributed company with members spread throughout the United States.
    developer-tools
    saas
  • Dyspatch (w2014)Active • 20 employees • Victoria, BC, Canada
    Dyspatch by Sendwithus is a powerful communications platform built around advanced email content management. Our platform simplifies transactional email creation with a robust API, an easy to use editor, and built-in device testing, allowing for truly collaborative email strategy and execution. A centralized hub for email creation, approval, and publishing, our cloud-based solution empowers Product, Marketing, CRM, and Loyalty teams to efficiently build and test meaningful, dynamic communications without involving developers or deploying code. And with built-in support for 300+ locales, your teams can seamlessly manage localized content for global communications. Easily connect your cloud email provider or customize your integration to connect to your digital messaging service. Upload your existing templates in minutes. And from there, you’re well on your way to optimizing every email you send.
    saas
    b2b
  • Latchel
    Latchel (w2019)Active • Seattle, WA, USA
    Latchel is the only end-to-end platform that automates maintenance coordination and delivers best in class resident amenities. We service over 80,000 homes across over 400 customers in all 50 states of the US. We’re growing rapidly and need a Product Designer to continue our rapid growth trajectory.
    saas
  • Mason
    Mason (w2016)Active • 65 employees • Seattle, WA, USA
    Mason is the fastest way to take smart devices from idea to end user. Whether building a single-use device from scratch or scaling a line of smart products, with Mason it’s 20x faster and 10x less costly to build, deploy and scale. Digital transformation is a modern requirement but operating a hardware-dependent initiative is hard – thousands of hours and millions of dollars are at stake. The Mason Smart Device Platform is the only fully managed infrastructure for developing and delivering dedicated devices. It offers flexible usage-based pricing for fleets of devices and manages the underlying complexity of all associated backend services, making software delivery on a smart product line—whether it’s a tablet, wearable or new form factor—as simple as delivering software in the cloud. This frees innovators to focus on what matters: application development, feature specification and UX. Granular access to add, remove or lock down capabilities makes it possible for highly customized products to be built as envisioned. Mason offloads hardware investment risks and logistics, including inventory procurement, warehousing and supply chain management. With options like zero-touch provisioning, devices can work perfectly out of the box without end user intervention. Remote fleet management, troubleshooting and automated software updates by Mason ensure security and positive end user experiences. Organizations of all sizes rely on Mason to bring innovations and hundreds of use cases to market without reinventing the wheel. Smarter from start to finish with Mason.™ AWARDS * 2023: Best Places to Work & Best Startups to Work For, Built In Seattle * 2022: Best Places to Work & Best Small Places to Work, Built In Seattle * 2022: IoT Health & Wellness Innovation of the Year, IoT Breakthrough * 2022: Bronze Stevie® Award - Emerging Technology, The 2022 American Business Awards® * 2021: Deloitte Technology Fast 500™, Deloitte * 2019: Tech Impact Awards, Mobile - Silver, Seattle Business magazine Follow us on LinkedIn | https://www.linkedin.com/company/mason-america/
    hardware
    saas
    logistics
  • Instant Labs
    Instant Labs (w2022)Active • 1 employees • Victoria, BC, Canada
    Instant Labs started in 2005 by building the fastest domain search engine on the internet: https://instantdomainsearch.com. People have performed over 2.5M searches and purchased 250K domains with our free tool. In 2023, we released Strobe, https://strobe.app, an AI-powered tool to help brands find creators to help them grow.
    saas
    b2b
    marketing
    ai
  • Cash Flow Portal
    Cash Flow Portal (w2022)Active • 19 employees • Seattle, WA, USA
    Cash Flow Portal is an investment management platform for real estate. We launched 5 months ago, and we have 6-figure ARR, growing 50% month over month, with 300 syndicators and 3,000 investors. We’ve grown quickly because I am a syndicator myself. Having raised $20MM for my own deals, I know how painful it is to manually prepare Docusigns, send wire instructions and wrangle investors. I also happen to be friends with 2,000 other syndicators just like me needing a solution for managing their investors. I’m not just a syndicator. I spent most of my career as an engineering leader at Lyft, Twitter, and Amazon. $20K ARR per syndicator gives us a $2B TAM. Having achieved my own financial freedom through real estate investing, our mission is to serve all real estate investors and help them achieve financial freedom.
    marketplace
    saas
    real-estate
    b2b
    proptech
  • Chordio
    Chordio (s2022)Active • 4 employees • Issaquah, WA, USA
    Chordio is an AI product designer that learns about products and generates designs based on requirements provided through a chat interface. For example, a product manager uses Chordio to visualize a new user flow in their product in minutes instead of days.
    saas
    b2b
  • Aurelian
    Aurelian (s2022)Active • 2 employees • Seattle, WA, USA
    Aurelian automates non-emergency calls to police departments. Our AI-powered operator instantly routes, triages, and resolves calls so citizens get exactly what they need and 9-1-1 dispatchers get to focus on emergencies. Upwards of 80% of total call volume faced by public safety agencies are administrative calls e.g., citizens trying to pay parking tickets or reporting a power outage. Aurelian lessens this burden and lets 9-1-1 dispatchers deal with actual emergencies.
    artificial-intelligence
    saas
  • Oneloop
    Oneloop (s2022)Active • 2 employees • Seattle, WA, USA
    Oneloop is a modern API key management and authentication platform. What this means is that with a single line of code, you can start issuing API keys, authenticate them, add rate limits, and track usage limits to your API product If you have an API product or building your own AI models, we can help you add API key authentication and management to your product, with our sdk and pre-built UI.
    developer-tools
    saas
    b2b
    infrastructure
  • Worksphere
    Worksphere (w2021)Acquired • 6 employees • Seattle, WA, USA
    Worksphere helps companies manage a hybrid workplace where employees work from the office and from home. We allow employees to reserve a desk, know who will be in office, and better coordinate in-person meetings. Companies can let go of unused office space and save money.
    saas
    b2b
  • Cuboh
    Cuboh (s2019)Acquired • 50 employees • Victoria, BC, Canada
    We build software to help restaurants manage their third-party delivery online orders.
    saas
    food-tech