Real Estate Tech Companies: Who Does What (2026 Guide)
Real estate tech companies build software and platforms for finding, financing, selling and managing property. The names on most lists, such as Zillow, Redfin, Opendoor and Crexi, fall into a few job types, which this guide sorts out.
What are real estate tech companies?
Built In, in a page updated 4 August 2026, defines real estate technology as any website, app or software used to find, sell or manage property. It says the term overlaps with proptech, which professionals mostly use.
That makes real estate tech companies a wide group, from consumer sites like Redfin and Trulia to back-office tools for property managers and commercial brokers. Built In profiles 27 real estate tech companies, each with a location and a short description, while Ascendix profiles 30.
Readers often notice the same real estate tech companies repeating across lists. One reason is authorship: Ascendix, a software developer, ranks itself first on its own list of 30 companies, published 3 September 2024 and modified 25 February 2025.
Which real estate tech companies do what?
Grouping real estate tech companies by job is more useful than a ranking. The examples below come from Built In (updated 4 August 2026) and Ascendix (modified 25 February 2025), and the descriptions are the companies' own.
Job | Example companies | What they do |
Search and listings | Zillow, Redfin, Trulia, Realtor.com | Home search, listing alerts, mortgage tools, valuations |
Cash offers | Opendoor, Flyhomes | Buy homes for cash; Flyhomes also offers a trade-up programme |
Closing and fraud protection | Endpoint, Closinglock, CertifID | Digital closings; wire-instruction and identity checks |
Property management and rentals | Cove, Lessen, Findigs, EliseAI, Guesty | Work orders, applicant vetting, renter messaging, short-term rental operations |
Commercial real estate | Crexi, VTS, Buildout | Listings, leasing tools, broker marketing |
Data and analytics | AirDNA, HouseCanary | Short-term rental analytics; property valuations |
Consumer search and cash-offer companies
Among consumer-facing real estate tech companies, Built In says Zillow's Zestimate draws on bedroom and bathroom counts, square footage and tax records, and uses computer vision on listing photos.
It also cites Zillow's own page for a median error just above 3 percent. We did not open that page, so treat it as Zillow's claim.
Built In and Ascendix both say Opendoor offers a 90-day buy-back guarantee. Ascendix adds typical closings of 10 to 60 days, and Built In says more than 35 cities. Neither gives a source for those two figures.
Sellers often report that a cash offer from one of these real estate tech companies trades speed for price, so compare it with a normal listing.
Closing, fraud and property management software
Wire fraud is a named problem for several real estate tech companies. Built In describes Closinglock as protecting wire instructions and CertifID as offering identity verification and fraud recovery.
Property managers get a different toolset from these real estate tech companies. Built In lists Cove for work orders and inspections, Lessen for AI-assisted work orders, Findigs for applicant vetting and EliseAI for renter messaging.
Buyers of this software often ask about integrations first, because a tool that does not connect to existing accounting or leasing systems adds work.
Commercial and analytics companies
Among commercial real estate tech companies, Crexi says it has helped close billions of dollars in transactions since 2015, according to Built In. That is a company claim. Built In also says AirDNA tracks over 15 million listings, with no source.
Ascendix says HouseCanary offers insights on over 100 million residential properties, again unsourced. Treat such counts as marketing until a methodology is published.
What trends are shaping real estate tech companies?
Ascendix names four trends: AI and machine learning, millennial and Gen Z buyers, the internet of things, and virtual and augmented reality. Its one sourced figure is a survey of 585 millennials from Real Estate Witch, October 2023.
Built In points to speed. It cites Redfin's Instant Updates and Book It Now features, and says iBuying is still a small share of transactions but is expected to grow. It gives no figure for that share.
Brokers often describe these tools as a way to free agents for personal work, a point Redfin's Jen Chao makes in Built In's piece. Treat trend lists about real estate tech companies as direction, not measurement, since neither page gives market-size figures.
How reliable are the claims real estate tech companies make?
Many headline numbers from real estate tech companies repeat from page to page without a source. This table shows what we found.
Claim | Where it appears | Source status |
Zestimate median error just above 3% | Built In, 4 August 2026 | Cites Zillow's own page |
Zillow Offers bought fewer than 700 homes in 2018 | Built In | Cites a 2019 New York Times article |
Opendoor in more than 35 cities | Built In | No source |
Opendoor closes in 10 to 60 days | Ascendix | No source |
RealPage manages over 24 million rental units | Ascendix | No source |
585 millennials surveyed | Ascendix | Real Estate Witch survey, October 2023 |
Sourced does not mean verified: a citation shows where a number came from, not that it is right.
Built In also repeats an old Zillow Offers target of 5,000 homes a month by 2024 with no source, so we left it out.
Zillow announced in November 2021 that it was closing Zillow Offers, according to CNBC. Its meta title says 26 companies while its heading and list show 27, a small sign of how lists drift.
Readers often assume a number on a polished page was checked. In most of these cases the page simply repeats what the company says.
How do you choose among real estate tech companies?
Customer: decide whether the real estate tech companies on your list sell to consumers or to professionals.
Job: match the row in the table above to the problem you have.
Evidence: ask each of the real estate tech companies for a dated, independent source behind its headline figure.
Fit: check that the tool connects with the systems you already use.
If you are weighing property as an investment rather than software, our September 2026 piece on what makes a property a good long-term investment stresses verified rent comparables and realistic reserves over optimistic projections.
For other ranked lists, see our top lists archive.
A quick test: ask a vendor which figures are audited, which date they apply to and where the method is published. Vendors that answer plainly are easier to compare than those that point to a press release.
Teams often shortlist by brand recognition, then find the tool solves a different job from the one they had.
What should you do next?
Write down the one job you need done, pick two real estate tech companies from that row of the table, and ask each for a dated, independent source behind its headline figure before you sign anything.
Frequently asked questions about real estate tech companies
What is a real estate tech company?
Real estate tech companies make software or platforms used to find, sell, finance or manage property. Built In's definition covers any website, app or software for those tasks.
Is Zillow a real estate tech company?
Built In includes Zillow among its 27 real estate tech companies, listing the Zestimate, home search, mortgages, agent matching, rentals and direct home sales.
What is the difference between proptech and real estate tech?
Built In says the two overlap and that proptech is mostly used by professionals, and according to Wikipedia, proptech applies information technology and platform economics to the real estate industry.
What is an iBuyer?
Built In describes iBuying as companies making algorithm-driven cash offers on homes and reselling them, often after renovations. Among real estate tech companies, Opendoor is its example.
Which real estate tech companies serve commercial property?
Built In and Ascendix name Crexi, VTS and Buildout, which cover listings, leasing and broker marketing. Their descriptions come from the companies.