Company lists · Data refreshed September 2026

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

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 372 companies tracked

RevenueBase identified 372 IT services and IT consulting companies headquartered in Washington, United States as of September 2026 and tracks 4,867 professional contacts across them, including 1,301 with verified work emails. Across the United States, New York is the largest hub for this category (1,233 companies); Washington has 372.

This list covers IT services and IT consulting companies headquartered in Washington, 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

372Companies

4,867Contacts tracked

1,301Verified emails

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

Ranked by team size

Top 25 of 372 IT services and IT consulting companies based in Washington, 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 services and IT consulting companies: 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	Vtech Solution INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	201-500	576 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
2	Computer World Services Corp. CWS	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	201-500	314 contacts →
	Indirect evidence “With over 30 years of hands-on experience, Computer World Services Corp.” Source: RevenueBase Database · checked Sep 27, 2026
3	Code District	Indirect evidence	Washington, VA, United StatesHQ checked Sep 27, 2026	51-200	183 contacts →
	Indirect evidence “We collaborate closely with technology and business leaders across industries to help drive organizational advancement through AI-powered, purpose-built software solutions.” Source: RevenueBase Database · checked Sep 27, 2026
4	Techunity, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	156 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
5	Analytica	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	135 contacts →
	Partial evidence “Analytica is an award-winning consulting and technology services provider that supports public-sector health, civilian, and national security.” Source: RevenueBase Database · checked Sep 27, 2026
6	DHA Group, INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	201-500	135 contacts →
	Partial evidence “DHA is a full-service Information Technology and Consulting firm dedicated to providing mission-critical services to our Federal Government and commercial clients.” Source: RevenueBase Database · checked Sep 27, 2026
7	CGH Technologies, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	115 contacts →
	Indirect evidence “CGH Technologies Inc, delivers information engineering solutions and management support services to United States and international government and private sector organizations.” Source: RevenueBase Database · checked Sep 27, 2026
8	Codice	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	109 contacts →
	Partial evidence “CODICE is an information technology and healthcare operations consulting firm focused on delivering customized, high-quality solutions to government agencies and corporations.” Source: RevenueBase Database · checked Sep 27, 2026
9	Networking For Future NFF	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	108 contacts →
	Indirect evidence “Since 1996, Networking For Future, Inc.(NFF) has been engineering the backbone of mission-critical systems for government and enterprise clients.” Source: RevenueBase Database · checked Sep 27, 2026
10	Blue Water Thinking	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	91 contacts →
	Indirect evidence “Strategy, Management and Technology Consultancy” Source: RevenueBase Database · checked Sep 27, 2026
11	Creoal SMX	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	501-1,000	87 contacts →
	Strong evidence “Acquired by SMX in late 2023, Creoal drives digital transformation through innovative IT solutions that leverage Oracle, Salesforce, and leading-edge technologies (e.g, AI, RPA…” Source: RevenueBase Database · checked Sep 27, 2026
12	Tsymmetry	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	79 contacts →
	Indirect evidence “You need more than a contractor.” Source: RevenueBase Database · checked Sep 27, 2026
13	Dantech Corporation INC	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	72 contacts →
	Strong evidence “As organizations navigate the demands of today’s fast-moving IT landscape, Dantech stands as a trusted partner with the expertise to guide, implement, and optimize technology…” Source: RevenueBase Database · checked Sep 27, 2026
14	Longevity Consulting	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	71 contacts →
	Strong evidence “Longevity Consulting is a customer-focused strategic management and IT consulting firm that helps federal agencies achieve mission objectives, improve outcomes, and strengthen…” Source: RevenueBase Database · checked Sep 27, 2026
15	NEW Signature	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	201-500	70 contacts →
	Indirect evidence “New Signature delivers an amazing customer experience to small, mid-sized, enterprise and public sector customers and helps them solve business challenges with Microsoft solutions.” Source: RevenueBase Database · checked Sep 27, 2026
16	Collaborative Mind, LLC Cmind	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	56 contacts →
	Indirect evidence “CMIND assists its clients strategize, leverage and implement practical solutions to maintain their competitive advantage.” Source: RevenueBase Database · checked Sep 27, 2026
17	Intepros Federal	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	51 contacts →
	Strong evidence “IntePros Federal is a Service-Disabled Veteran-Owned Small Business (SDVOSB) founded in 2009 with the goal of providing IT services to multiple agencies/departments of the federal…” Source: RevenueBase Database · checked Sep 27, 2026
18	Prosource360 Consulting Services	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	47 contacts →
	Partial evidence “Founded in 2011, ProSource360 is a premier professional, healthcare and technology services consulting firm supporting federal and commercial markets.” Source: RevenueBase Database · checked Sep 27, 2026
19	Cascades Technologies, INC	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	47 contacts →
	Strong evidence “Cascades Technologies is a Professional Consulting and IT Services firm with a commitment to personal and profession integrity.” Source: RevenueBase Database · checked Sep 27, 2026
20	Ideacrew	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	45 contacts →
	Indirect evidence “IdeaCrew is a full-service consultancy that helps our clients envision, develop and operate enabling technology solutions.” Source: RevenueBase Database · checked Sep 27, 2026
21	Blue SKY Innovative Solutions	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	43 contacts →
	Indirect evidence “Blue Sky Innovative Solutions (Blue Sky) understands the business and information technology challenges and opportunities that face government and private sector clients and we…” Source: RevenueBase Database · checked Sep 27, 2026
22	Componentwise Solutions INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	n/a	43 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
23	Trust Consulting Services INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	201-500	42 contacts →
	Indirect evidence “We bring an experience unmatched anywhere else, with knowledgeable and thoughtful consultants plus flexible, tailored approaches, all centered on the right outcomes for your…” Source: RevenueBase Database · checked Sep 27, 2026
24	Digidoc, Inc. DBA Public Sector Solutions Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	40 contacts →
	Partial evidence “The Public Sector Solutions Group is an award-winning Information Technology consulting firm with an emphasis on access to real-time information and an enhanced user experience.” Source: RevenueBase Database · checked Sep 27, 2026
25	Avid Systems LLC	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	39 contacts →
	Strong evidence “Avid Systems LLC is a woman-owned Information Technology Services firm based in Washington, DC, with over 20 years of proven expertise in delivering transformative IT solutions.” 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 services and IT consulting companies. 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 services and IT consulting companies.
Partial evidence: Its own public description names part of IT services and IT consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT services and IT consulting companies. 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 372 IT services and IT consulting companies based in Washington, United States

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

As of Sep 27, 2026

26.7%Verified-email coverage

13.1Average contacts per company

1-10Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

191

11-50

119

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 372 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 services and IT consulting companies, 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 Washington, United States whose own description of what they do matches “IT services and IT consulting companies”. 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 services and IT consulting companies), 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 services and IT consulting companies, and records with no verified work email. Companies headquartered outside Washington 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, 1,301 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 services and IT consulting companies 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 services and IT consulting companies, 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 services and IT consulting companies are there based in Washington, United States?

RevenueBase identified 372 IT services and IT consulting companies headquartered in Washington, 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?

Vtech Solution INC, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most IT services and IT consulting companies?

New York leads the United States with 1,233 headquartered companies, followed by Houston (842) and Dallas (638). Washington has 372.

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 1,301 verified decision-maker contacts tracked across these 372 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.