Company lists · Data refreshed September 2026
Top 25 Arlington IT companies worldwide
RevenueBase identified 2,330 arlington IT companies worldwide as of September 2026 and tracks 87,027 professional contacts across them, including 19,229 with verified work emails. The United States is the largest market and Reston the largest hub.
This list covers arlington IT companies worldwide, 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 21, 2026. Country and city lists for arlington IT companies follow the table.
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 25 largest arlington IT companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 23,974 contacts → | ||||
Indirect evidence “GDIT is a global technology and professional services company that delivers solutions, technology and mission services to every major agency across the U.S.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 9,697 contacts → | ||||
Indirect evidence “MANTECH is more than a technology company.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 4,542 contacts → | ||||
Indirect evidence “ASRC Federal’s employees provide solutions for more than 30 U.S.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,683 contacts → | ||||
Indirect evidence “DMI is a leading provider of digital services and technology solutions with a focus on end-to-end managed services, including managed mobility, cloud, cybersecurity, network…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 979 contacts → | ||||
Indirect evidence “PPC is now part of DSA” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 941 contacts → | ||||
Indirect evidence “Established in 1980, MIL provides innovative cyber, engineering, financial, and information technology services to the federal government.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 927 contacts → | ||||
Indirect evidence “TekSynap understands both the pace of technology today and the need to have a comprehensive well planned information management environment.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 872 contacts → | ||||
Indirect evidence “Quantum Sky is a mission technology company that builds secure AI, cyber, cloud, and quantum capabilities for defense, intelligence, and federal civilian agencies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 764 contacts → | ||||
Indirect evidence “MTI provides award-winning, end-to-end technology solutions and services in cyber security and data centre for over 35 years.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 747 contacts → | ||||
Indirect evidence “Systems Engineering Services Corporation (SESC), founded in 1989, is a leading provider of technology solutions to Fortune companies and government organizations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 639 contacts → | ||||
Indirect evidence “For over 20 years, Salient CRGT has upheld its mission to "empower our diverse, hard-working team to deliver high-value solutions that make positive impacts on missions and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 611 contacts → | ||||
Indirect evidence “Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 581 contacts → | ||||
Partial evidence “NIC has been providing IT Solutions, Cybersecurity, and Cloud Services for businesses and organizations for the past two decades.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 576 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 543 contacts → | ||||
Partial evidence “Since 2005, TISTA has been a trusted partner with innovative IT solutions for the federal government.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 412 contacts → | ||||
Indirect evidence “DSS, é especializada na prestação de serviços de tecnologia da informação.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 410 contacts → | ||||
Partial evidence “Edgewater Federal Solutions was founded in 2002 with the mission of being the best IT consulting company possible for our government clients, our contracting partners and our…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 352 contacts → | ||||
Partial evidence “We offer customised IT solutions to optimise the project lifecycle, enhancing technological infrastructures and facilitating the integration of systems and technologies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 349 contacts → | ||||
Indirect evidence “OBXtek is a relationship-driven information technology and diversified professional services company.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 335 contacts → | ||||
Indirect evidence “Inserso Corporation is ISO 9001:2015 (Quality), ISO (ITSM), and ISO 27001:2013 (Security) certified and CMMI-ML3 appraised Small Business.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 324 contacts → | ||||
Indirect evidence “JOBSEEKERS: Our Recruiters only ever reach out from BusinessIntegra.com or PeopleIntegra.com email addresses.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 314 contacts → | ||||
Indirect evidence “With over 30 years of hands-on experience, Computer World Services Corp.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 296 contacts → | ||||
Partial evidence “Founded in 2003, FEDITC, LLC is an ISO and CMMI level 3 certified cyber security, IT, and engineering services firm.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 287 contacts → | ||||
Partial evidence “Follow our page for insights on hybrid IT strategy, cloud, security, AI, data science, remote workforce, back-to-office technology solutions, e-sports.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 276 contacts → | ||||
Partial evidence “IntelliBridge, An Agile Defense Company, delivers IT strategy, cloud, cybersecurity, application, data and analytics, enterprise IT, intelligence analysis, and mission operation…” Source: RevenueBase Database · checked Sep 21, 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: arlington IT companies. 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 arlington IT companies.
- Partial evidence
- Its own public description names part of arlington IT companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name arlington IT companies. 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 2,330 arlington IT companies worldwide
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Arlington IT companies worldwide at a glance
As of Sep 21, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 arlington IT companies, 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.
- Coverage
- Every country. Country and city lists for arlington IT companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “arlington IT companies”. 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 arlington IT companies), 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 arlington IT companies, and records with no verified work email.
- 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, 19,229 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 21, 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.
Arlington IT companies by location
13 lists · largest firstEvery Arlington IT companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Arlington IT companies based in the United States1,102
- Arlington IT companies based in India176
- Arlington IT companies based in Brazil61
- Arlington IT companies based in Canada48
- Arlington IT companies based in the United Kingdom43
- Arlington IT companies based in Australia36
- Arlington IT companies based in France36
Cities
- Arlington IT companies based in Reston, United States40
- Arlington IT companies based in Washington, United States39
- Arlington IT companies based in Herndon, United States30
- Arlington IT companies based in Mclean, United States26
- Arlington IT companies based in Fairfax, United States25
- Arlington IT companies based in Vienna, United States25
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 arlington IT companies, 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 arlington IT companies are there worldwide?
RevenueBase identified 2,330 arlington IT companies worldwide 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?
General Dynamics Information Technology, headquartered in Falls Church, tops this list with the largest team on record.
Which country has the most arlington IT companies?
The United States leads with 1,102 companies, followed by India (176) and Brazil (61). Every arlington IT companies list by country and city is linked on this page.
Which city has the most arlington IT companies?
Reston leads with 40 headquartered companies, followed by Washington (39) and Herndon (30).
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 19,229 verified decision-maker contacts tracked across these 2,330 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 21, 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.