Company lists · Data refreshed September 2026

Top 25 Software engineering firms based in Mclean, United States

Name: Software engineering firms based in Mclean, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 103 companies tracked

RevenueBase identified 103 company matches for software engineering firms associated with Mclean, United States as of September 2026 and tracks 17,134 professional contacts across them, including 6,870 with verified work emails. Across the United States, New York is the largest hub for this category (1,132 companies); Mclean has 103.

This list covers company matches for software engineering firms associated with Mclean, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 6, 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 RevenueBase SmartSearch · Exact Recorded Sep 6, 2026 How this list was built

103Companies

17,134Contacts tracked

6,870Verified emails

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The 25 largest software engineering firms based in Mclean, United States

Ranked by team size

Top 25 of 103 company matches for software engineering firms based in Mclean, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Guidehouse	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	10001+	12,815 contacts →
	Exact match “Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
2	Groundswell	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	201-500	342 contacts →
	Exact match “Groundswell is a specialized, highly agile systems integrator delivering advanced technology solutions as a trusted mission partner to federal agencies.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
3	AD HOC LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	501-1,000	333 contacts →
	Exact match “Ad Hoc is a digital services company that helps the federal government better serve people.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
4	Rofous	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	5,001-10,000	267 contacts →
	Exact match “Rofous Software is now part of GlobalLogic, a leading R&D software provider based in the U.S.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
5	Validatek, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	201-500	224 contacts →
	Exact match “ValidaTek is a premier government IT consulting firm based in the Washington DC area that drives technology transformation and secures mission-critical systems for our federal…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
6	Cybermedia Technologies, LLC Ctec	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	51-200	223 contacts →
	Exact match “We modernize legacy infrastructure, secure mission-critical systems and design digital experiences that impact millions of federal workers & American citizens every day.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
7	Pragmatics, LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	201-500	209 contacts →
	Exact match “Pragmatics was acquired by Integral Federal, Inc.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
8	Sierra7, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	201-500	200 contacts →
	Exact match “Sierra7 is a premier technology solutions and business process outsourcing firm serving the needs of government and commercial clients.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
9	Bart & Associates, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	1,001-5,000	187 contacts →
	Exact match “Headquartered in McLean, Va, B&A is a leading information technology systems integrator providing solutions through the following service offerings: Modernization &…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
10	A-Tek, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	201-500	159 contacts →
	Exact match “As a trusted services and solutions provider, A-TEK, Inc.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
11	Princeton Information	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	1,001-5,000	157 contacts →
	Exact match “Princeton Information is one of the nation's top privately-held IT consulting and solutions firms, in business since 1985.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
12	Humantouch, LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	201-500	110 contacts →
	Exact match “We bridge the gap between people & technology.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
13	Saliense	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	51-200	107 contacts →
	Exact match “Saliense is a high-end Technology Solutions provider based out of Tysons Corner, VA.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
14	Bana Solutions, LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	11-50	80 contacts →
	Exact match “Bana Solutions is an innovative, high-energy and creative technology company focused on enterprise-class products and services which, when tactically fused, become catalysts for…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
15	Dexian IT Solutions	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	1,001-5,000	62 contacts →
	Exact match “Dexian IT Solutions, a unit of Dexian, is an outcome-driven service and solutions partner that serves enterprises across their Information Technology operations.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
16	Eway Corp	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	51-200	62 contacts →
	Exact match “eWay Corp is a global IT Consulting company with a simple motto: Forward.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
17	Zenpoint Solutions LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	51-200	60 contacts →
	Exact match “ZenPoint is a small, 8(a) certified, woman-owned IT Services company.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
18	Technology Ventures	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	201-500	54 contacts →
	Exact match “Technology Ventures is a leading technology services company delivering a broad portfolio of business and technology solutions and staffing to help its clients improve their…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
19	Omnisystems, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	51-200	53 contacts →
	Exact match “OmniSystems delivers state-of-the-art solutions, specializing in the development and integration of web-enabled systems.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
20	22nd Century Software Solutions	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	51-200	48 contacts →
	Exact match “22nd Century Software Solutions is Software product subsidy of 22nd Century Technologies Inc,(22nd), developing innovative IT solutions and futuristic products for US Government.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
21	Mfgs, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	201-500	47 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
22	Main Digital	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	11-50	47 contacts →
	Exact match “Main Digital is a consultancy that transforms and optimizes business and government.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
23	A1fed	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	11-50	47 contacts →
	Exact match “A1FED brings the expertise in understanding the requirements and the customer data and delivering quality software to our clients.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
24	Millsapps, Ballinger & Associates Mb&a	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	11-50	44 contacts →
	Exact match “Millsapps, Ballinger & Associates (MB & A) is a full life cycle management consulting company focusing on helping organizations achieve their goals and increase organizational…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
25	Artemis Consulting	Exact match	Mclean, VA, United StatesHQ recorded Sep 6, 2026	501-1,000	39 contacts →
	Exact match “Artemis Consulting, a wholly owned subsidiary of ARETUM, is an IT Services and Management Consulting firm in the Washington D.C.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “software engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 103 software engineering firms based in Mclean, United States

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Software engineering firms based in Mclean, United States at a glance

As of Sep 6, 2026

40.1%Verified-email coverage

166.3Average contacts per company

11-50Median size (employees)

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United States list rather than for Mclean, so it is reported there. Company counts and contact totals on this page are exact for Mclean, over 103 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Mclean, United States whose business descriptions match “software engineering firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 6,870 professional contacts with verified work emails across the full matched dataset. 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 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Software engineering firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “software engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many software engineering firms are there based in Mclean, United States?

RevenueBase identified 103 company matches for software engineering firms associated with Mclean, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Guidehouse tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most software engineering firms?

New York leads the United States with 1,132 company records, followed by Houston (648) and Austin (633). Mclean has 103.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,870 professional contacts with verified work emails tracked across these 103 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 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 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.