Company lists · Data refreshed September 2026

Top 25 IT consulting and solutions firms based in Mclean, United States

Name: IT consulting and solutions 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 27, 2026 149 companies tracked

RevenueBase identified 149 IT consulting and solutions firms headquartered in Mclean, United States as of September 2026 and tracks 18,092 professional contacts across them, including 7,054 with verified work emails. Across the United States, New York is the largest hub for this category (1,683 companies); Mclean has 149.

This list covers IT consulting and solutions firms headquartered in Mclean, 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 27, 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 27, 2026 86% judged on-target in blind review

149Companies

18,092Contacts tracked

7,054Verified emails

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The 25 largest IT consulting and solutions firms based in Mclean, United States

Ranked by team size

Top 25 of 149 IT consulting and solutions firms based in Mclean, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to IT consulting and solutions firms: 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	Guidehouse	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	10001+	12,815 contacts →
	Indirect evidence “Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Source: RevenueBase Database · checked Sep 27, 2026
2	DISYS	Strong evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,108 contacts →
	Strong evidence “Digital Intelligence Systems, LLC (DISYS) is a global technology and consulting firm specializing in Managed Services, Business, Consulting, and IT/Non-IT Staffing Services.” Source: RevenueBase Database · checked Sep 27, 2026
3	Groundswell	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	201-500	342 contacts →
	Partial evidence “Groundswell is a specialized, highly agile systems integrator delivering advanced technology solutions as a trusted mission partner to federal agencies.” Source: RevenueBase Database · checked Sep 27, 2026
4	Validatek, INC	Strong evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	201-500	224 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
5	ARG - IT Clarity	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	51-200	204 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
6	Bart & Associates, INC	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	1,001-5,000	187 contacts →
	Partial evidence “Headquartered in McLean, Va, B&A is a leading information technology systems integrator providing solutions through the following service offerings: Modernization &…” Source: RevenueBase Database · checked Sep 27, 2026
7	GCB Services	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	201-500	181 contacts →
	Partial evidence “GCB headquartered in Virginia is one of the premier independent providers of engineering & Information Technology services to the wireless telecom and IT industry.” Source: RevenueBase Database · checked Sep 27, 2026
8	Acumen Solutions	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	501-1,000	175 contacts →
	Partial evidence “Clients choose Acumen Solutions, a Salesforce Company, for one simple reason: our experience delivers success.” Source: RevenueBase Database · checked Sep 27, 2026
9	Integral Federal, INC	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	201-500	153 contacts →
	Partial evidence “Integral partners with federal defense, intelligence, and civilian leaders to tackle their most important challenges and deliver transformative solutions.” Source: RevenueBase Database · checked Sep 27, 2026
10	Saliense	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	51-200	107 contacts →
	Partial evidence “Saliense is a high-end Technology Solutions provider based out of Tysons Corner, VA.” Source: RevenueBase Database · checked Sep 27, 2026
11	Bana Solutions, LLC	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	11-50	80 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
12	Astor & Sanders	Strong evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	51-200	77 contacts →
	Strong evidence “Astor & Sanders Corporation (Astor) is a leading IT digital transformation company optimizing federal missions through cost-effective, efficient, and scalable technology solutions.” Source: RevenueBase Database · checked Sep 27, 2026
13	Dexian IT Solutions	Strong evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	1,001-5,000	62 contacts →
	Strong evidence “Dexian IT Solutions, a unit of Dexian, is an outcome-driven service and solutions partner that serves enterprises across their Information Technology operations.” Source: RevenueBase Database · checked Sep 27, 2026
14	Eway Corp	Strong evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	51-200	62 contacts →
	Strong evidence “eWay Corp is a global IT Consulting company with a simple motto: Forward.” Source: RevenueBase Database · checked Sep 27, 2026
15	Zenpoint Solutions LLC	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	51-200	60 contacts →
	Partial evidence “ZenPoint is a small, 8(a) certified, woman-owned IT Services company.” Source: RevenueBase Database · checked Sep 27, 2026
16	Technology Ventures	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	201-500	54 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
17	Omnisystems, INC	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	51-200	53 contacts →
	Partial evidence “OmniSystems delivers state-of-the-art solutions, specializing in the development and integration of web-enabled systems.” Source: RevenueBase Database · checked Sep 27, 2026
18	Mfgs, INC	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	201-500	47 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
19	Main Digital	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	11-50	47 contacts →
	Indirect evidence “Main Digital is a consultancy that transforms and optimizes business and government.” Source: RevenueBase Database · checked Sep 27, 2026
20	Mcbride	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	51-200	47 contacts →
	Partial evidence “McBride Consulting, LLC,(dba McBride) is a minority and Service-Disabled Veteran-Owned Small Business (SDVOSB) management consulting and project management firm with significant…” Source: RevenueBase Database · checked Sep 27, 2026
21	Millsapps, Ballinger & Associates Mb&a	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	11-50	44 contacts →
	Partial evidence “Millsapps, Ballinger & Associates (MB & A) is a full life cycle management consulting company focusing on helping organizations achieve their goals and increase organizational…” Source: RevenueBase Database · checked Sep 27, 2026
22	Artemis Consulting	Strong evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	501-1,000	39 contacts →
	Strong evidence “Artemis Consulting, a wholly owned subsidiary of ARETUM, is an IT Services and Management Consulting firm in the Washington D.C.” Source: RevenueBase Database · checked Sep 27, 2026
23	Rvna Technologies	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	11-50	38 contacts →
	Partial evidence “RVNA Tech is an international technology company focused on advising on process improvement based on best practices and high-growth & emerging cloud solutions proven to drive…” Source: RevenueBase Database · checked Sep 27, 2026
24	Creative Systems And Consulting, Part Of ICF	Partial evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	201-500	36 contacts →
	Partial evidence “Founded in 2010, Creative Systems and Consulting, LLC, has been at the forefront of Digital Transformation across Federal Government, driving innovation, ingenuity, and industry…” Source: RevenueBase Database · checked Sep 27, 2026
25	Xscion Solutions	Strong evidence	Mclean, VA, United StatesHQ checked Sep 27, 2026	51-200	35 contacts →
	Strong evidence “xScion Solutions (xScion) is a technology consulting solutions firm that helps organizations in highly regulated industries Turn Change Into Value® through Business Agility, Cloud…” Source: RevenueBase Database · checked Sep 27, 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: IT consulting and solutions firms. 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 IT consulting and solutions firms.
Partial evidence: Its own public description names part of IT consulting and solutions firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT consulting and solutions firms. 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 149 IT consulting and solutions firms based in Mclean, United States

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IT consulting and solutions firms based in Mclean, United States at a glance

As of Sep 27, 2026

39.0%Verified-email coverage

121.4Average 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 149 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 IT consulting and solutions firms, 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 Mclean, United States whose own description of what they do matches “IT consulting and solutions firms”. 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 IT consulting and solutions firms), 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 IT consulting and solutions firms, and records with no verified work email. Companies headquartered outside Mclean 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, 7,054 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 27, 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.

IT consulting and solutions firms by metro in the United States

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 IT consulting and solutions firms, 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 IT consulting and solutions firms are there based in Mclean, United States?

RevenueBase identified 149 IT consulting and solutions firms headquartered in Mclean, 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?

Guidehouse, headquartered in Mclean, tops this list with the largest team on record.

Which city in the United States has the most IT consulting and solutions firms?

New York leads the United States with 1,683 headquartered companies, followed by Houston (1,042) and Chicago (910). Mclean has 149.

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 7,054 verified decision-maker contacts tracked across these 149 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 27, 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.