Company lists · Data refreshed September 2026

Top 25 Government software vendors based in the United States

Name: Government software vendors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

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, its RevenueBase Smart Search rating, 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 Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

346Companies

20,522Contacts tracked

10,392Verified emails

8,262Mobile numbers

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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. RevenueBase Smart Search rates how each company's information relates to government software vendors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Tyler Technologies	Partial evidence	Plano, ID, United StatesHQ checked Sep 3, 2026	5,001-10,000	6,863 contacts →
	Partial evidence “Tyler Technologies (NYSE: TYL) provides integrated software and technology services to the public sector.” Source: RevenueBase Database · checked Sep 3, 2026
2	Fast Enterprises, LLC	Strong evidence	Centennial, ME, United StatesHQ checked Sep 3, 2026	1,001-5,000	2,378 contacts →
	Strong evidence “For 25+ years, we’ve transformed the way government agencies serve their communities, providing software that delivers superior customer experiences, greater flexibility, and…” Source: RevenueBase Database · checked Sep 3, 2026
3	I3 Verticals	Partial evidence	Nashville, TN, United StatesHQ checked Sep 3, 2026	1,001-5,000	817 contacts →
	Partial evidence “i3 Verticals seamlessly delivers integrated software and services to customers in Public Sector markets.” Source: RevenueBase Database · checked Sep 3, 2026
4	Neogov	Partial evidence	El Segundo, CA, United StatesHQ checked Sep 3, 2026	501-1,000	678 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 3, 2026
5	Accela	Partial evidence	San Ramon, CA, United StatesHQ checked Sep 3, 2026	201-500	487 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 3, 2026
6	TD Synnex Public Sector	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 3, 2026	201-500	293 contacts →
	Indirect evidence “For more than 30 years, TD SYNNEX Public Sector has been dedicated to accelerating public sector growth for technology companies.” Source: RevenueBase Database · checked Sep 3, 2026
7	Sungard Public Sector	Indirect evidence	Lake Mary, FL, United StatesHQ checked Sep 3, 2026	501-1,000	282 contacts →
	Indirect evidence “SunGard Public Sector is now Superion.” Source: RevenueBase Database · checked Sep 3, 2026
8	CIVIX	Strong evidence	Metairie, LA, United StatesHQ checked Sep 3, 2026	201-500	226 contacts →
	Strong evidence “Civix is a leading provider of government technology solutions, specializing in business services, elections, ethics, and grants management software.” Source: RevenueBase Database · checked Sep 3, 2026
9	Computronix	Indirect evidence	Lakewood, CO, United StatesHQ checked Sep 3, 2026	51-200	214 contacts →
	Indirect evidence “At Computronix, we value strong relationships with our clients.” Source: RevenueBase Database · checked Sep 3, 2026
10	Edmunds Govtech	Strong evidence	Northfield, NJ, United StatesHQ checked Sep 3, 2026	51-200	201 contacts →
	Strong evidence “Proven Solutions That Power Local Government - Formerly known as Edmunds & Associates - We’re more than just software, we’re a community.” Source: RevenueBase Database · checked Sep 3, 2026
11	Purvis Systems	Partial evidence	Middletown, RI, United StatesHQ checked Sep 3, 2026	201-500	187 contacts →
	Partial evidence “PURVIS Systems is a technology solutions partner that develops, implements, and maintains mission-critical solutions for federal and local governments.” Source: RevenueBase Database · checked Sep 3, 2026
12	Integrated Data Services	Strong evidence	United StatesHQ checked Sep 3, 2026	201-500	176 contacts →
	Strong evidence “Integrated Data Services (IDS) is a leading provider of custom software products and Government financial management services.” Source: RevenueBase Database · checked Sep 3, 2026
13	Immixgroup	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	201-500	171 contacts →
	Indirect evidence “immixGroup, acquired by Arrow Electronics, Inc.” Source: RevenueBase Database · checked Sep 3, 2026
14	Acclaim Systems	Partial evidence	Feasterville-trevose, PA, United StatesHQ checked Sep 3, 2026	51-200	129 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 3, 2026
15	Tritech Software Systems	Indirect evidence	Lake Mary, FL, United StatesHQ checked Sep 3, 2026	1,001-5,000	123 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 3, 2026
16	Caselle, INC	Strong evidence	Provo, UT, United StatesHQ checked Sep 3, 2026	51-200	109 contacts →
	Strong evidence “Caselle provides Governments and Service Districts with increased productivity and efficiency through a suite of integrated Government Accounting Software.” Source: RevenueBase Database · checked Sep 3, 2026
17	B2gnow	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 3, 2026	51-200	106 contacts →
	Partial evidence “B2Gnow is a national leader in software solutions that promote transparency, accountability, and compliance in public and private contracting.” Source: RevenueBase Database · checked Sep 3, 2026
18	Jamis Software Corporation	Partial evidence	Boulder, NJ, United StatesHQ checked Sep 3, 2026	51-200	92 contacts →
	Partial evidence “Government contractors deserve technology solutions that improve how they serve their federal customers, not get in the way.” Source: RevenueBase Database · checked Sep 3, 2026
19	Four INC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 3, 2026	51-200	90 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 3, 2026
20	Southern Software, INC	Partial evidence	Southern Pines, NC, United StatesHQ checked Sep 3, 2026	51-200	80 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 3, 2026
21	Nfocus Solutions	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 3, 2026	51-200	80 contacts →
	Indirect evidence “nFocus Solutions® is dedicated to the development of innovative technologies and intelligent business solutions for the public sector.” Source: RevenueBase Database · checked Sep 3, 2026
22	Futron Incorporated	Indirect evidence	Woodbridge, VA, United StatesHQ checked Sep 3, 2026	51-200	80 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 3, 2026
23	TOKA	Partial evidence	Columbia, MD, United StatesHQ checked Sep 3, 2026	51-200	77 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 3, 2026
24	Matrix Pointe Software	Partial evidence	Westlake, OH, United StatesHQ checked Sep 3, 2026	51-200	67 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 3, 2026
25	Dynanet Corporation	Indirect evidence	Elkridge, MD, United StatesHQ checked Sep 3, 2026	51-200	67 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 3, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: government software vendors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names government software vendors.
Partial evidence: Its own public description names part of government software vendors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name government software vendors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

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

50.6%Verified-email coverage

40.3%Mobile-number coverage

59.3Average contacts per company

11-50Median size (employees)

2.9%Largest-city concentration · Herndon

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

137

11-50

134

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

88231–60

5,96661–90

3,45290–180

92180+

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 RevenueBase Smart Search 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 Smart Search, 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.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names government software vendors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
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 its RevenueBase Smart Search 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

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names government software vendors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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.

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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 Smart Search, 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.