Company lists · Data refreshed September 2026

Top 23 Government contractors based in Rockville, United States

Name: Government contractors based in Rockville, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 34 companies tracked

RevenueBase identified 34 government contractors headquartered in Rockville, United States as of September 2026 and tracks 2,731 professional contacts across them, including 907 with verified work emails. Washington is the largest hub.

This list covers government contractors headquartered in Rockville, 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 16, 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 16, 2026 86% judged on-target in blind review

34Companies

2,731Contacts tracked

907Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 23 largest government contractors based in Rockville, United States

Ranked by team size

Top 23 of 34 government contractors based in Rockville, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to government contractors: 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	Tista Science And Technology Corporation	Partial evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	1,001-5,000	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 16, 2026
2	Feditc	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	201-500	296 contacts →
	Indirect 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 16, 2026
3	Strategic Technology Institute INC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	51-200	269 contacts →
	Indirect evidence “Since 1985, STi has become a preferred provider of products and services supporting the training, engineering, and logistics needs of a wide range of U.S.” Source: RevenueBase Database · checked Sep 16, 2026
4	Lcg, INC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	201-500	198 contacts →
	Indirect evidence “LCG is a leading provider of technology and solution-based consulting services, including managed infrastructure & operations, application services, cybersecurity, grant…” Source: RevenueBase Database · checked Sep 16, 2026
5	Caelum Research Corporation	Partial evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	51-200	194 contacts →
	Partial evidence “Caelum Research Corporation is a dynamic, broad-based professional service firm providing Applied Sciences, Information Technology, and System Engineering services to government…” Source: RevenueBase Database · checked Sep 16, 2026
6	Mele Associates, INC	Partial evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	201-500	191 contacts →
	Partial evidence “MELE Associates, Inc.(MELE) has been delivering outstanding service and support to federal, local, and state government agencies and commercial customers for more than three…” Source: RevenueBase Database · checked Sep 16, 2026
7	Information Systems Solutions, INC	Partial evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	201-500	152 contacts →
	Partial evidence “ISS is an innovative information technology (IT) services and solutions provider to the Department of Defense (DoD) and other federal government agencies.” Source: RevenueBase Database · checked Sep 16, 2026
8	Hendall INC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	51-200	148 contacts →
	Indirect evidence “From serving civilian agencies in their public service missions to supporting the defense communities that protect our Nation, Hendall delivers best-value solutions that improve…” Source: RevenueBase Database · checked Sep 16, 2026
9	Mes, INC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	201-500	139 contacts →
	Indirect evidence “MES, aka Manufacturing Engineering Systems, is an ISO 9001:2015 certified, international, award winning small business, a management and technical services firm located in…” Source: RevenueBase Database · checked Sep 16, 2026
10	Technuf	Partial evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	51-200	93 contacts →
	Partial evidence “Technuf is a Maryland-based technology company delivering secure, intelligent, and mission-ready solutions for federal agencies, state and local governments, healthcare…” Source: RevenueBase Database · checked Sep 16, 2026
11	SPS Consulting, LLC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	51-200	52 contacts →
	Indirect evidence “At SPS Consulting, we’re giving customers the "Right Expertise at the Right Time".” Source: RevenueBase Database · checked Sep 16, 2026
12	Barnallen Technologies, INC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	201-500	51 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
13	Veterans Engineering	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	51-200	42 contacts →
	Indirect evidence “Veterans Engineering (VE) is dedicated to aiding Federal agencies and commercial entities in pursuing Emerging Technologies, Cloud Computing, Enterprise Technology Strategy…” Source: RevenueBase Database · checked Sep 16, 2026
14	A-Tech Systems, INC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	51-200	40 contacts →
	Indirect evidence “A-Tech Systems, Inc.(A-Tech) is a services firm comprised of skilled professionals with extensive experience in IT support services, information assurance, cyber security…” Source: RevenueBase Database · checked Sep 16, 2026
15	VARIQ	Partial evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	201-500	38 contacts →
	Partial evidence “Founded in 2003, VariQ is a multiple award-winning company delivering Cybersecurity, Cloud and Software Development services to 20+ federal, state and local government departments…” Source: RevenueBase Database · checked Sep 16, 2026
16	E-Infosol LLC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	51-200	30 contacts →
	Indirect evidence “E-INFOSOL is an SBA 8a and Service-Disabled and Veteran-Owned Small Business (SDVOSB) located in the Washington, D.C.” Source: RevenueBase Database · checked Sep 16, 2026
17	Infostructures, INC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	51-200	30 contacts →
	Indirect evidence “InfoStructures' mission is to apply technology to better the workplace.” Source: RevenueBase Database · checked Sep 16, 2026
18	Cta, INC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	51-200	26 contacts →
	Indirect evidence “Computer Technology Associates (CTA) is an information technology engineering firm providing systems services and advanced technology solutions in support of mission-critical…” Source: RevenueBase Database · checked Sep 16, 2026
19	Global Solutions Network, INC	Partial evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	51-200	22 contacts →
	Partial evidence “Global Solutions Network, Inc.(GSN) was formed in to provide the Federal Government and the private sector with a variety of technical, administrative, and engineering services.” Source: RevenueBase Database · checked Sep 16, 2026
20	Hyertek	Partial evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	11-50	12 contacts →
	Partial evidence “HyerTek provides expert technology solutions for federal government clients, with a strong emphasis on innovation, integration, and automation that help enhance citizens lives.” Source: RevenueBase Database · checked Sep 16, 2026
21	Fedstore Corporation	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	11-50	4 contacts →
	Indirect evidence “FedStore Corporation, a fast growing, award-winning provider of innovative information technology solutions to the public sector, brings a unique combination of vendors…” Source: RevenueBase Database · checked Sep 16, 2026
22	Vcentra	Partial evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “Vcentra provides IT consulting, development and infrastructure services to Federal Government agencies.” Source: RevenueBase Database · checked Sep 16, 2026
23	International Technologies Trading, INC	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 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 contractors. 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 contractors.
Partial evidence: Its own public description names part of government contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name government contractors. 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 23 of 34 government contractors based in Rockville, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 907 reachable decision-makers.

Free signup · no credit card

View the full list →

Government contractors based in Rockville, United States at a glance

As of Sep 16, 2026

33.2%Verified-email coverage

80.3Average contacts per company

51-200Median size (employees)

341.2%Largest-city concentration · Washington

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Rockville, so it is reported there. Company counts and contact totals on this page are exact for Rockville, over 34 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 contractors, 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 Rockville, United States whose own description of what they do matches “government contractors”. 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 contractors), 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 contractors, and records with no verified work email. Companies headquartered outside Rockville 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, 907 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 16, 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 contractors by metro in the United States

Government contractors in Washington116
Government contractors in Reston85
Government contractors in Alexandria75
Government contractors in Herndon69
Government contractors in Mclean64
Government contractors in Chantilly62
Government contractors in Fairfax61
Government contractors in Arlington59
Government contractors in Huntsville53
Government contractors in Vienna52
Government contractors in Columbia36
Government contractors in San Antonio36
Government contractors in Rockville34
Government contractors in Leesburg33
Government contractors in Atlanta30
Government contractors in Ashburn28
Government contractors in Bethesda27
Government contractors in Baltimore26
Government contractors in Colorado Springs25

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 contractors, 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 contractors are there based in Rockville, United States?

RevenueBase identified 34 government contractors headquartered in Rockville, 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?

Tista Science And Technology Corporation, headquartered in Rockville, tops this list with the largest team on record.

Which city has the most government contractors?

Washington leads with 116 headquartered companies, followed by Reston (85) and Alexandria (75).

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 907 verified decision-maker contacts tracked across these 34 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 34 government contractors based in Rockville, United States. Start with a free account, no credit card.

Download this list →

Related lists

Government contractors by geography

Browse the directory

Browse: Companies home · Government contractors in United States · All United States lists · All Government contractors 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 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.