Company lists · Data refreshed September 2026
Top 14 Government software integrators based in Ashburn, United States
RevenueBase identified 25 government software integrators headquartered in Ashburn, United States as of September 2026 and tracks 368 professional contacts across them, including 137 with verified work emails. Across the United States, Washington is the largest hub for this category (71 companies); Ashburn has 25.
This list covers government software integrators headquartered in Ashburn, 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 28, 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.
The 14 largest government software integrators based in Ashburn, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 50 contacts → | ||||
Partial evidence “At InquisIT, we believe the business of government is vital to our nation and demands the highest caliber of contractor services.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 47 contacts → | ||||
Strong evidence “DotGov Solutions, LLC (formerly Alfa XP Web Software, LLC) is a full-service e-government consulting company providing organizational analysis, process improvement, and custom…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 44 contacts → | ||||
Indirect evidence “Agensys Corporation provides agile processes, skilled people, and technology solutions to help transform our Defense, Intelligence and Civilian agency customers.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 38 contacts → | ||||
Partial evidence “Software Staffing and consulting Firm” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 30 contacts → | ||||
Indirect evidence “Systalex delivers secure, scalable, and intelligent solutions that empower organizations to achieve mission-driven outcomes.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 28 contacts → | ||||
Indirect evidence “Knowledge Systems is a leading provider of application and intelligence solutions to the federal defense and civilian communities.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 12 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 11 contacts → | ||||
Partial evidence “Protect3 provides cyber security solutions for government agencies.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 10 contacts → | ||||
Indirect evidence “Diamond provides outstanding results for our clients, with a focus on integrated, flexible, and economical solutions that meet business objectives.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 7 contacts → | ||||
Strong evidence “We provide business software to government contractors.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 contacts → | ||||
Indirect evidence “KJB Solutions delivers enterprise-grade IT solutions that power critical federal infrastructure, with deep specialization in systems that serve our nation's veterans.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4 contacts → | ||||
Indirect evidence “Founded in Portal Systems excels in building, managing, and optimizing secure IT infrastructures, specializing in networks, data centers, and cloud solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2 contacts → | ||||
Indirect evidence “Cellentia Information Technology Company was established and founded in 2015 by a team of professionals who bring a wealth of practical and hands-on Information Technology…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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 integrators. 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 integrators.
- Partial evidence
- Its own public description names part of government software integrators, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name government software integrators. 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 14 of 25 government software integrators based in Ashburn, United States
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Government software integrators based in Ashburn, United States at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Ashburn, so it is reported there. Company counts and contact totals on this page are exact for Ashburn, over 25 companies.
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 integrators, 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 Ashburn, United States whose own description of what they do matches “government software integrators”. 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 integrators), 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 integrators, and records with no verified work email. Companies headquartered outside Ashburn 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, 137 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 28, 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.
Government software integrators by metro in the United States
- Government software integrators in Washington71
- Government software integrators in Reston64
- Government software integrators in Herndon62
- Government software integrators in Mclean49
- Government software integrators in Chantilly45
- Government software integrators in Fairfax42
- Government software integrators in Arlington38
- Government software integrators in Alexandria37
- Government software integrators in Columbia37
- Government software integrators in Vienna37
- Government software integrators in Rockville28
- Government software integrators in Leesburg27
- Government software integrators in New York27
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 integrators, 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 integrators are there based in Ashburn, United States?
RevenueBase identified 25 government software integrators headquartered in Ashburn, 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?
Inquisit, headquartered in Ashburn, tops this list with the largest team on record.
Which city in the United States has the most government software integrators?
Washington leads the United States with 71 headquartered companies, followed by Reston (64) and Herndon (62). Ashburn has 25.
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 137 verified decision-maker contacts tracked across these 25 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 28, 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.
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