Company lists · Data refreshed September 2026

Top 25 Information technology consulting firms based in Mclean, United States

Name: Information technology consulting 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 26, 2026 195 companies tracked

RevenueBase identified 195 company matches for information technology consulting firms associated with Mclean, United States as of September 2026 and tracks 24,998 professional contacts across them, including 9,093 with verified work emails. Across the United States, New York is the largest hub for this category (1,204 companies); Mclean has 195.

This list covers company matches for information technology consulting 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 26, 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 26, 2026 How this list was built

195Companies

24,998Contacts tracked

9,093Verified emails

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The 25 largest information technology consulting firms based in Mclean, United States

Ranked by team size

Top 25 of 195 company matches for information technology consulting firms based in Mclean, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 26, 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 26, 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 26, 2026 · View company records in RevenueBase
2	DMI	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
3	DISYS	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
4	Ultraviolet Cyber	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	501-1,000	523 contacts →
	Exact match “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program, finding what's vulnerable, stopping…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
5	Ntiva, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
6	SMS Data Products Group, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	501-1,000	445 contacts →
	Exact match “As a dynamic systems integrator, SMS offers proven solutions in engineering, operations, cybersecurity, and digital transformation.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
7	Attain Partners	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	201-500	399 contacts →
	Exact match “Based in McLean, Va, Attain Partners is a leading management and technology consulting firm delivering services and solutions to advance client missions across the education…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
8	Obxtek	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
9	Groundswell	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
10	Intellibridge, An Agile Defense Company	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	201-500	276 contacts →
	Exact match “IntelliBridge, An Agile Defense Company, delivers IT strategy, cloud, cybersecurity, application, data and analytics, enterprise IT, intelligence analysis, and mission operation…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
11	VMD Corp	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	501-1,000	254 contacts →
	Exact match “About VMD VMD, now a part of Xcelerate Solutions, is a leading defense and national security company, delivering integrated solutions in enterprise security, strategic consulting…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
12	Zachary Piper Solutions	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	201-500	236 contacts →
	Exact match “Zachary Piper Solutions (ZPS) provides technical and professional services in support of the United States government across six key sectors: Intelligence, Defense, Energy…” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
13	Validatek, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
14	Cybermedia Technologies, LLC Ctec	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
15	Pragmatics, LLC	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	201-500	209 contacts →
	Exact match “Pragmatics was acquired by Integral Federal, Inc.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
16	ARG - IT Clarity	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
17	Bart & Associates, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
18	GCB Services	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
19	Be, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	201-500	176 contacts →
	Exact match “BE is a trusted partner on missions of vital importance to our customers, the nation and the world.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
20	A-Tek, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	201-500	159 contacts →
	Exact match “As a trusted services and solutions provider, A-TEK, Inc.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
21	Valiant Solutions	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	201-500	152 contacts →
	Exact match “Valiant Solutions, LLC stands out as a premier provider of Cybersecurity and IT services aiding the Federal Government in staying ahead of complex information security challenges.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
22	Network Designs, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	51-200	152 contacts →
	Exact match “NDi is a Verified Service-Disabled Veteran Owned Small Business [SDVOSB] professional services firm, supporting Federal and Commercial customers since 1995.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
23	Piper Companies	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 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 26, 2026 · View company records in RevenueBase
24	Easy Dynamics Corp	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	51-200	135 contacts →
	Exact match “Easy Dynamics Corporation is a leading technology services provider with a core focus in Cybersecurity, Cloud Computing, and Information Sharing.” Recorded in the RevenueBase company graph · Sep 26, 2026 · View company records in RevenueBase
25	Link Solutions, INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 26, 2026	51-200	128 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 26, 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 “information technology consulting 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 195 information technology consulting firms based in Mclean, United States

See the full list, filter by size, metro and specialty, and access 9,093 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Information technology consulting firms based in Mclean, United States at a glance

As of Sep 26, 2026

36.4%Verified-email coverage

128.2Average contacts per company

11-50Median size (employees)

Sep 26, 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 195 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 “information technology consulting 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 9,093 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 26, 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.

Information technology consulting 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 “information technology consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many information technology consulting firms are there based in Mclean, United States?

RevenueBase identified 195 company matches for information technology consulting 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 information technology consulting firms?

New York leads the United States with 1,204 company records, followed by Houston (770) and Atlanta (613). Mclean has 195.

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 9,093 professional contacts with verified work emails tracked across these 195 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 26, 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.