Real Estate and Construction Startups funded by Y Combinator (YC) in New York 2026

Structured AI is building the AI workforce for construction design engineering, starting with AI agents that perform quality control on technical documents and drawings. Our agents learn your standards, apply the right building codes, and automatically review your drawings, so you see fewer clashes, fewer inconsistencies, and fewer costly RFIs and change orders. ⚙️ Automates QA/QC across mechanical, electrical, structural and more 🧩 Used by multi-disciplinary design firms to deliver projects faster with less risk 🚀 Mission: Free engineers to focus on creative design, not repetitive admin

We are a full-service sell-side residential brokerage that lists and markets your properties. We also screen and schedule tenants showings with our AI agent for a third of the normal commission.

We use AI to help electrical contractors submit more competitive bids to construction projects. We do this by speeding up the estimating part of bidding, which is the most tedious part of the job. Specifically, we're building models that can understand floor plans and count electrical devices to generate the estimate. Bidflow is the future of electrical pre-construction.

IronLedger automates property accounting for property managers, developers and contractors, starting with accounts payable. We eliminate more than $70K of accounting costs annually for over 50K multifamily units. https://www.ironledger.ai/

We're building software to help institutional landlords reduce delinquency starting with fraud reduction.

Henry is an AI copilot for commercial real estate (CRE) brokers that seamlessly integrates a brokerage’s internal data set with external sources to generate custom presentations and financial modeling for deals. Our mission is to help CRE brokers close more deals faster, earning more while doing less repetitive work. We’re initially focusing on enabling brokers to generate deal decks in seconds—a task that typically consumes 20+ hours a week across multiple departments within a brokerage.

Clad is project management and billing software for infrastructure. The world is rebuilding its internet and power networks. The utilities, internet companies, and contractors tasked with this work face immense pressure to deliver. But their tools haven’t caught up. Contractors struggle to grow, constrained by cashflow. Operators fly blind, lacking real time visibility into issues. Clad unifies project operations and finance to automate project tracking, payments, and permitting. With Clad, contractors grow faster and improve their margins. Operators execute smoothly. And everyone can focus on what’s most important - building.

HOMLI is building the first fully autonomous real estate broker, enabling homeowners to sell without agents.

Intuitive AI platform that helps general contractors and developers manage their preconstruction process

SaaS automation tools, financing and marketplace for bulk construction materials

Quantierra sources real estate investments for developers. It uses their database and algorithms to determine what can be built, its value, and the probability of it selling. Taking a 1.5% cut of any property they help sell, They’ve made $141,000 in revenue in 3 months, and say they have $310,000 in signed term sheets.

Banner is the operating system for real estate teams. From building acquisition to disposition, Banner moves all communications, workflows, spreadsheets, and file-sharing into one system. With Banner, customers automate away 80%+ of their administrative work, saving up to 10% on project costs. The company is founded by Mark Murphy who formerly worked in RE finance, along with Kunal Chaudhary and Eric Gao, both UC Berkeley EECS alums.

REZI is a leading real estate technology company founded in 2016 and the only fully remote and automated marketplace for long-term apartment rentals. REZI empowers landlords to lease their vacant apartments using their state-of-the-art platform — guaranteeing the monthly rent, paying up to 12 months of rent upfront, reducing leasing costs, and simplifying the leasing process for several to hundreds of units in a single transaction. Renters on REZI are then able to find, tour, apply for, and lease their next home without any fees and in as little as five minutes — right from their phone — through pre-screened listings, contactless tours, and automated application decisions.

At Resolve we’re accelerating construction to build as fast as the future demands. Construction projects are all slowed down by rework that arises after humans spot issues in real life that slipped through all the hours of design reviews and coordination. Resolve enables construction teams to detect these issues in 3D BIM as early as possible so that we can close the gap between design and reality. By combining realtime collaboration in the web, immersive VR reviews, and AI-driven spatial navigation into the most easy to use platform for BIM reviews, Resolve empowers construction teams to identify risks earlier, coordinate faster, and deliver higher-quality assets across mission-critical infrastructure. Resolve has been used to deliver over 6GW of data center capacity and on projects across pharma, water treatment, healthcare, and other critical assets.

Guesty’s property management software provides property managers and management companies with an end-to-end solution to simplify the complex operational needs of short term rentals. With Guesty, users can manage listings from multiple online travel agencies including Airbnb, Booking.com, Agoda and TripAdvisor, and utilize the company’s guest-centric tools including: Unified Inbox, Automation Tools, 24/7 Guest Communication Services, Payment Processing and more.

RentHop (www.renthop.com) helps renters find great apartments. We use sophisticated data analysis to rank apartment listings based on their "freshness"​, their accuracy and completeness and the responsiveness of the manager who listed the apartment on our site. As a renter, you can use list-based or map-based search tools to browse listings and comprehensive search filters to narrow our 100,000+ listings to just the ones you want. It’s easy and fast to reach out to brokers and property managers to schedule viewings and to manage responses. You can also use our innovative "Appointments on Demand"​ feature, a map showing the real-time locations of brokers and property managers available to show apartments, to reach out and schedule viewings on the fly! For brokers and property managers, RentHop provides a cost-effective, easy-to-use tool to promote your listings, get qualified leads and schedule viewings. You can also post and repost listings on the go using RentHop Manager, our mobile app for brokers and property managers, currently available in the iOS App Store. (You can download the mobile app at https://itunes.apple.com/us/app/renthop-manager/id695651355.) Your commitment to give good service will make you stand out on RentHop - our algorithm will credit you for your responsiveness and help give your listings the boost they need to get seen - and rented - by qualified renters. Look for our mobile app for consumers, due out soon! And please let us know any questions, thoughts or comments you may have - we'll look forward to hearing from you! You can reach us at feedback@renthop.com. You can also find us on Facebook, Twitter (@RentHop), Google+ and Pinterest.

Ravti makes HVAC easier for the Real Estate world. We track, manager, and procure HVAC for large property owners. We manage all your HVAC maintenance programs, emergent repairs, scheduled repairs, capital replacement, capex management, and all the associated headaches that come along with that – multiple bids, procurement, HVAC inventory, warranties. Your team can start any project with the simple click of a button. Best of all, we save 18% to 30% for the exact HVAC projects you are spending capital on today. We're removing the headaches associated with HVAC from the Owner’s perspective while making it the easiest business on the planet for the Vendors that serve you. Improve your asset audits and challenge your bottom line - by increasing capex accuracy and staff productivity. Mechanize the process of bidding, procuring, and overseeing your HVAC operations. It all starts with Ravti. We would love to hear from you, so please send us an email at support@ravti.com. If you would like to join an intelligent and energetic team who is innovating an antiquated industry, we are hiring!!! Send us an email: careers@ravti.com