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Company lists · Data refreshed September 2026

Top 25 Government software vendors based in the United States

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 346 companies tracked

RevenueBase identified 346 government software vendors headquartered in the United States as of September 2026 and tracks 20,522 professional contacts across them, including 10,392 with verified work emails and 8,262 with mobile numbers. Herndon is the largest hub.

This list covers government software vendors 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 3, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review
346Companies
20,522Contacts tracked
10,392Verified emails
8,262Mobile numbers
Unlock all 346 companies Free signup · no credit card · 500 free credits

The 25 largest government software vendors based in the United States

Ranked by team size
Top 25 of 346 government software vendors based in the United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names government software vendors: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Tyler TechnologiesPartial evidence
Plano, ID, United StatesHQ checked Sep 3, 20265,001-10,0006,863

“Tyler Technologies (NYSE: TYL) provides integrated software and technology services to the public sector.”

Source: company website · checked Sep 3, 2026
2
Fast Enterprises, LLCStrong evidence
Centennial, ME, United StatesHQ checked Sep 3, 20261,001-5,0002,378

“For 25+ years, we’ve transformed the way government agencies serve their communities, providing software that delivers superior customer experiences, greater flexibility, and…”

Source: company website · checked Sep 3, 2026
3
I3 VerticalsPartial evidence
Nashville, TN, United StatesHQ checked Sep 3, 20261,001-5,000817

“i3 Verticals seamlessly delivers integrated software and services to customers in Public Sector markets.”

Source: company website · checked Sep 3, 2026
4
NeogovPartial evidence
El Segundo, CA, United StatesHQ checked Sep 3, 2026501-1,000678

“For over 25 years, NEOGOV has been at the forefront of public-sector innovation, building technology that helps government and education organizations work smarter, move faster…”

Source: company website · checked Sep 3, 2026
5
AccelaPartial evidence
San Ramon, CA, United StatesHQ checked Sep 3, 2026201-500487

“Accela provides a unified suite of cloud solutions trusted by governments across the globe to accelerate their digital transformation, deliver vital services, and build stronger…”

Source: company website · checked Sep 3, 2026
6
TD Synnex Public SectorIndirect evidence
Herndon, VA, United StatesHQ checked Sep 3, 2026201-500293

“For more than 30 years, TD SYNNEX Public Sector has been dedicated to accelerating public sector growth for technology companies.”

Source: company website · checked Sep 3, 2026
7
Sungard Public SectorIndirect evidence
Lake Mary, FL, United StatesHQ checked Sep 3, 2026501-1,000282

“SunGard Public Sector is now Superion.”

Source: company website · checked Sep 3, 2026
8
CIVIXStrong evidence
Metairie, LA, United StatesHQ checked Sep 3, 2026201-500226

“Civix is a leading provider of government technology solutions, specializing in business services, elections, ethics, and grants management software.”

Source: company website · checked Sep 3, 2026
9
ComputronixIndirect evidence
Lakewood, CO, United StatesHQ checked Sep 3, 202651-200214

“At Computronix, we value strong relationships with our clients.”

Source: company website · checked Sep 3, 2026
10
Edmunds GovtechStrong evidence
Northfield, NJ, United StatesHQ checked Sep 3, 202651-200201

“Proven Solutions That Power Local Government - Formerly known as Edmunds & Associates - We’re more than just software, we’re a community.”

Source: company website · checked Sep 3, 2026
11
Purvis SystemsPartial evidence
Middletown, RI, United StatesHQ checked Sep 3, 2026201-500187

“PURVIS Systems is a technology solutions partner that develops, implements, and maintains mission-critical solutions for federal and local governments.”

Source: company website · checked Sep 3, 2026
12
Integrated Data ServicesStrong evidence
United StatesHQ checked Sep 3, 2026201-500176

“Integrated Data Services (IDS) is a leading provider of custom software products and Government financial management services.”

Source: company website · checked Sep 3, 2026
13
ImmixgroupIndirect evidence
Mclean, VA, United StatesHQ checked Sep 3, 2026201-500171

“immixGroup, acquired by Arrow Electronics, Inc.”

Source: company website · checked Sep 3, 2026
14
Acclaim SystemsPartial evidence
Feasterville-trevose, PA, United StatesHQ checked Sep 3, 202651-200129

“Acclaim Systems is certified minority small business (SBA 8(a) & GSA) and is a leading software solution company offering a multitude of comprehensive and customized services…”

Source: company website · checked Sep 3, 2026
15
Tritech Software SystemsIndirect evidence
Lake Mary, FL, United StatesHQ checked Sep 3, 20261,001-5,000123

“CentralSquare provides technology solutions that help over 7,500 public sector agencies deliver vital safety and administrative services to 3 out of every 4 residents of the U.S.”

Source: company website · checked Sep 3, 2026
16
Caselle, INCStrong evidence
Provo, UT, United StatesHQ checked Sep 3, 202651-200109

“Caselle provides Governments and Service Districts with increased productivity and efficiency through a suite of integrated Government Accounting Software.”

Source: company website · checked Sep 3, 2026
17
B2gnowPartial evidence
Phoenix, AZ, United StatesHQ checked Sep 3, 202651-200106

“B2Gnow is a national leader in software solutions that promote transparency, accountability, and compliance in public and private contracting.”

Source: company website · checked Sep 3, 2026
18
Jamis Software CorporationPartial evidence
Boulder, NJ, United StatesHQ checked Sep 3, 202651-20092

“Government contractors deserve technology solutions that improve how they serve their federal customers, not get in the way.”

Source: company website · checked Sep 3, 2026
19
Four INCIndirect evidence
Herndon, VA, United StatesHQ checked Sep 3, 202651-20090
Source: company website · checked Sep 3, 2026
20
Southern Software, INCPartial evidence
Southern Pines, NC, United StatesHQ checked Sep 3, 202651-20080

“Southern Software is an employee owned company that has been providing state-of-the-art municipal and public safety products at competitive prices since 1988!”

Source: company website · checked Sep 3, 2026
21
Nfocus SolutionsIndirect evidence
Phoenix, AZ, United StatesHQ checked Sep 3, 202651-20080

“nFocus Solutions® is dedicated to the development of innovative technologies and intelligent business solutions for the public sector.”

Source: company website · checked Sep 3, 2026
22
Futron IncorporatedIndirect evidence
Woodbridge, VA, United StatesHQ checked Sep 3, 202651-20080

“Since 1994, Futron Incorporated has been driven by a clear and powerful mission: “To provide the best value for our customers by offering them quality services that help them in…”

Source: company website · checked Sep 3, 2026
23
TOKAPartial evidence
Columbia, MD, United StatesHQ checked Sep 3, 202651-20077

“At Toka, we have one clear goal: to provide trusted governments with the tools needed to keep citizens safe and defend against terror and crime.”

Source: company website · checked Sep 3, 2026
24
Matrix Pointe SoftwarePartial evidence
Westlake, OH, United StatesHQ checked Sep 3, 202651-20067

“Matrix is a leading provider of enterprise software for the justice system, serving prosecutor’s offices, law enforcement agencies, administrative agencies, and civil law…”

Source: company website · checked Sep 3, 2026
25
Dynanet CorporationIndirect evidence
Elkridge, MD, United StatesHQ checked Sep 3, 202651-20067

“Whether it is our customers and their specific solution needs or our own staff working to meet new challenges, Dynanet is driven by people, relationships and the power of…”

Source: company website · checked Sep 3, 2026

Showing 25 of 346 government software vendors based in the United States

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Government software vendors based in the United States at a glance

As of Sep 3, 2026
11-50Median size (employees)
HerndonLargest hub · 10 HQs
8,262Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
137
11-50
134
51-200
47
201-500
13
501-1,000
3
1,001-5,000
7
5,001-10,000
4

Verified emails by last verification

0–30
0
31–60
882
61–90
5,966
90–180
3,452
180+
92

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 government software vendors, 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 “government software vendors”. 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 government software vendors, 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, 10,392 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 3, 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 government software vendors are there based in the United States?

RevenueBase identified 346 government software vendors 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?

Tyler Technologies, headquartered in Boise, tops this list with the largest team on record.

Which city has the most government software vendors?

Herndon leads with 10 headquartered companies, followed by Vienna (8) and New York (5).

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 10,392 verified decision-maker contacts tracked across these 346 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 3, 2026.

Ready to reach these companies? Verified emails and direct dials for all 346 government software vendors based in the United States. Start with a free account, no credit card.

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Related lists

Browse: Companies home · All United States lists · All Government software vendors lists · New lists

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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