Company lists · Data refreshed September 2026

Top 25 IT services and IT consulting companies based in Mclean, United States

Name: IT services and IT consulting companies based in Mclean, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 141 companies tracked

RevenueBase identified 141 company matches for IT services and IT consulting companies associated with Mclean, United States as of September 2026 and tracks 21,468 professional contacts across them, including 8,083 with verified work emails. Across the United States, New York is the largest hub for this category (1,309 companies); Mclean has 141.

This list covers company matches for IT services and IT consulting companies 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 27, 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 27, 2026 How this list was built

141Companies

21,468Contacts tracked

8,083Verified emails

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

The 25 largest IT services and IT consulting companies based in Mclean, United States

Ranked by team size

Top 25 of 141 company matches for IT services and IT consulting companies based in Mclean, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 27, 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 27, 2026 · View company records in RevenueBase
2	DMI	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,683 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	DISYS	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	1,108 contacts →
	Exact match “Digital Intelligence Systems, LLC (DISYS) is a global technology and consulting firm specializing in Managed Services, Business, Consulting, and IT/Non-IT Staffing Services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Ntiva, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	501-1,000	505 contacts →
	Exact match “At Ntiva, growing people (our employees, partners, and clients) is our mission.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	Obxtek	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	201-500	349 contacts →
	Exact match “OBXtek is a relationship-driven information technology and diversified professional services company.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Groundswell	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
7	Validatek, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
8	Pragmatics, LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	201-500	209 contacts →
	Exact match “Pragmatics was acquired by Integral Federal, Inc.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	ARG - IT Clarity	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	51-200	204 contacts →
	Exact match “Since 1991, ARG has helped more than companies protect their business and save up to 40 percent on technology spending by making the right choice when it comes to technology…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	Sierra7, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
11	Bart & Associates, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
12	GCB Services	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	201-500	181 contacts →
	Exact match “GCB headquartered in Virginia is one of the premier independent providers of engineering & Information Technology services to the wireless telecom and IT industry.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	A-Tek, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	201-500	159 contacts →
	Exact match “As a trusted services and solutions provider, A-TEK, Inc.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Piper Companies	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	501-1,000	146 contacts →
	Exact match “At Piper, we obsess about the success of our customers and consultants.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	Link Solutions, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	51-200	128 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Humantouch, LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	201-500	110 contacts →
	Exact match “We bridge the gap between people & technology.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Saliense	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
18	CRI	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	51-200	103 contacts →
	Exact match “Communications Resource, Inc.(CRI) is a minority and Woman-Owned Small Business with over 30 years of focused security performance supporting over 40 government and commercial…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Bana Solutions, LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
20	Astor & Sanders	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	51-200	77 contacts →
	Exact match “Astor & Sanders Corporation (Astor) is a leading IT digital transformation company optimizing federal missions through cost-effective, efficient, and scalable technology solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	Advanced Computer Concepts	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	11-50	67 contacts →
	Exact match “Advanced Computer Concepts (ACC) provides IT products and services to corporate and government customers.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	Dexian IT Solutions	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
23	Eway Corp	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
24	Zenpoint Solutions LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
25	OCT Consulting LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 27, 2026	51-200	57 contacts →
	Exact match “OCT Consulting LLC is a Small Business providing professional services and information technology solutions to U.S.” Recorded in the RevenueBase company graph · Sep 27, 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 “IT services and IT consulting companies”. 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 141 IT services and IT consulting companies based in Mclean, United States

See the full list, filter by size, metro and specialty, and access 8,083 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

IT services and IT consulting companies based in Mclean, United States at a glance

As of Sep 27, 2026

37.7%Verified-email coverage

152.3Average contacts per company

11-50Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 141 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 “IT services and IT consulting companies” 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 8,083 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 27, 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.

IT services and IT consulting companies 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 “IT services and IT consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT services and IT consulting companies are there based in Mclean, United States?

RevenueBase identified 141 company matches for IT services and IT consulting companies 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 IT services and IT consulting companies?

New York leads the United States with 1,309 company records, followed by Houston (842) and Dallas (638). Mclean has 141.

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 8,083 professional contacts with verified work emails tracked across these 141 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 27, 2026.

Ready to reach these companies? Verified emails and direct dials for all 141 IT services and IT consulting companies based in Mclean, United States. Start with a free account, no credit card.

Download this list →

Related lists

IT services and IT consulting companies by geography

Browse the directory

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.