Company lists · Data refreshed September 2026
Top 25 Property assessment software companies based in the United States
RevenueBase identified 108 property assessment software companies headquartered in the United States as of September 2026 and tracks 2,059 professional contacts across them, including 664 with verified work emails and 838 with mobile numbers. San Diego is the largest hub.
This list covers property assessment software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest property assessment software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 295 | ||||
“We are a team of skilled developers, UX designers, marketing professionals, customer service specialists, software engineers and much more.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 166 | ||||
“Since 1975, Vision Government Solutions has been providing the highest quality Appraisal Services and CAMA Software in the industry to assessing departments located throughout the…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 144 | ||||
“Opteon is an international provider of valuation, advisory, and property services through innovative software solutions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | Just AppraisedStrong evidence | 135 | |||
“Just Appraised builds modern software for county assessors and local government offices to manage property data, records, and public requests with confidence.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | Spectora Home Inspection SoftwarePartial evidence | 75 | |||
“We are a small-but-quickly-growing tech company that builds software for the real estate space.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 62 | ||||
“We help property tax and licensing professionals simplify their work and save them time, so they can focus on core business functions and their bottom line.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 62 | ||||
“Manatron is now Thomson Reuters Aumentum.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 60 | ||||
“At Altus Group, our ARGUS suite of software solutions provide consistency, transparency and efficiency into the financial and operational processes that drive the global…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 49 | ||||
“DataMaster is the top appraisal data management solution in the US.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 46 | ||||
“Valcre is a software company providing an innovative appraisal platform for the commercial real estate industry.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 43 | ||||
“CAMA | Property Tax | GIS | Online Portal Integrated Land Records Software for Local Government” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | Quality Data Service INCPartial evidence | 43 | |||
“Founded in 1981 and based in Waterbury CT, our privately held corporation is involved in all aspects of Municipal Software development and related services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 37 | ||||
“Since 1968, Vanguard Appraisals has been at the forefront of the mass appraisal industry.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 33 | ||||
“Since 1987, BRADFORD TECHNOLOGIES has been dedicated to producing innovative solutions for Valuation Professionals.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 30 | ||||
“Founded in 2003, Valligent’s mission is to expedite the property valuation industry’s shift towards a fully digital workflow, all with the best interests of customers and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 28 | ||||
“eUnify is a software shop dedicated to the Community Association industry.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 26 | ||||
“Here at Trimavin, we provide accurate and sound property valuations using the latest technology at our disposal.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Keystone Information SystemsIndirect evidence | 26 | |||
“Keystone’s focus is in the development of superior information management solutions for municipal and county governments, and public school districts, currently targeting the…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 24 | ||||
“Apex Software continues to operate as the leader in Sketching Software, Desktop Review and Mobile Solutions for the real estate appraisal and related industries.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 | ||||
“If you manage code enforcement, permitting, inspections, planning, or public works, ICC Community Development can help streamline and track your information.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 22 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | Patriot Properties, INCIndirect evidence | 19 | |||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 | ||||
“We inform municipalities and educate property owners by delivering the most reliable and accurate property tax assessment process.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 17 | ||||
“Backshop is a software company that provides commercial real estate valuation, pipeline, loan origination, asset management, and securitization management software.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | Arkansas Cama TechnologyIndirect evidence | 16 | |||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 108 property assessment software companies based in the United States
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Property assessment software companies based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among property assessment software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “property assessment software companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among property assessment software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 664 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
How many property assessment software companies are there based in the United States?
RevenueBase identified 108 property assessment software companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Corelogic FNC, headquartered in Oxford, tops this list with the largest team on record.
Which city has the most property assessment software companies?
San Diego leads with 4 headquartered companies, followed by Allen (3) and Houston (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 664 verified decision-maker contacts tracked across these 108 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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