Company lists · Data refreshed September 2026

Top 25 IT services firms based in Washington, United States

Name: IT services firms 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 129 companies tracked

RevenueBase identified 129 IT services firms headquartered in Washington, United States as of September 2026 and tracks 1,605 professional contacts across them, including 386 with verified work emails. Across the United States, New York is the largest hub for this category (691 companies); Washington has 129.

This list covers IT services firms 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

129Companies

1,605Contacts tracked

386Verified emails

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The 25 largest IT services firms based in Washington, United States

Ranked by team size

Top 25 of 129 IT services firms 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 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	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
2	DHA Group, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	201-500	135 contacts →
	Indirect 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
3	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
4	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
5	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
6	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
7	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
8	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
9	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
10	Compass Solutions	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	30 contacts →
	Indirect evidence “Compass Solutions, LLC is a leading Information Technology company that delivers technology solutions that fit the business model of its clients.” Source: RevenueBase Database · checked Sep 27, 2026
11	Practical Solutions, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	22 contacts →
	Indirect evidence “Practical Solutions, Inc.(PSI) was founded on the principle that successful organizations have a balanced operation of technology, engineering, and management.” Source: RevenueBase Database · checked Sep 27, 2026
12	JRH Consultants	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	20 contacts →
	Indirect evidence “JRH Consultants is an Information Technology company that provides cost effective services and solutions in Operations Management, Cyber Security Services, Cloud Integration and…” Source: RevenueBase Database · checked Sep 27, 2026
13	Fwdthink	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	20 contacts →
	Indirect evidence “FWDthink is an information technology services firm that helps Government agencies and Fortune 100 companies implement technological solutions, expand revenue or ROI and train our…” Source: RevenueBase Database · checked Sep 27, 2026
14	BIG Impact Tech BIT	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	15 contacts →
	Strong evidence “Big Impact Tech (BIT) is a small business that provides Business Management and IT Consulting Services to the public and private sectors.” Source: RevenueBase Database · checked Sep 27, 2026
15	Partners International	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	15 contacts →
	Strong evidence “Partners International is a Washington, D.C-based independent information technology consulting firm, specializing in outsourced IT support services and custom software…” Source: RevenueBase Database · checked Sep 27, 2026
16	Csznet INC	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	14 contacts →
	Strong evidence “CSZNet provides IT Solutions & Services for Federal & State Government and Private Sectors.” Source: RevenueBase Database · checked Sep 27, 2026
17	Empowerment Through Technology & Education, INC	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	13 contacts →
	Strong evidence “Founded in 2002, ETTE is a minority-owned business providing IT technical support and consulting services to businesses throughout the Washington, DC area.” Source: RevenueBase Database · checked Sep 27, 2026
18	Goldman Edwards	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	11 contacts →
	Indirect evidence “Our CEO, whom was a government official within Department of Homeland Security (DHS) built Goldman Edwards on the foundation of security, innovation and service to our homeland.” Source: RevenueBase Database · checked Sep 27, 2026
19	Netaesthetics	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	9 contacts →
	Indirect evidence “We build AI that works inside your business.” Source: RevenueBase Database · checked Sep 27, 2026
20	Bloom Consulting LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
21	Kacidy INC	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	9 contacts →
	Strong evidence “Kacidy IT Solutions Simplified - Cloud Computing, Security, IS Audit and Compliance Services, Corporate Training, and Project Management.” Source: RevenueBase Database · checked Sep 27, 2026
22	Thinksocially LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	8 contacts →
	Indirect evidence “Your single point of contact for all things technical.” Source: RevenueBase Database · checked Sep 27, 2026
23	Artisys Corporation	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	8 contacts →
	Strong evidence “Artisys Corporation is an ethnic minority-owned, Service-Disabled Veteran-Owned Business (SDVOB) with over 35 years of experience delivering transformative IT consulting and…” Source: RevenueBase Database · checked Sep 27, 2026
24	Capitol Technology Solutions	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	7 contacts →
	Strong evidence “Capitol Technology Solutions is a client-focused IT services and consulting firm.” Source: RevenueBase Database · checked Sep 27, 2026
25	K Street Consulting	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	7 contacts →
	Strong evidence “Converging Technology and Business At K Street Consulting, we're more than just IT support.” 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 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 services firms.
Partial evidence: Its own public description names part of IT services firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT services 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 129 IT services firms based in Washington, United States

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IT services firms based in Washington, United States at a glance

As of Sep 27, 2026

24.0%Verified-email coverage

12.4Average contacts per company

1-10Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 129 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 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 Washington, United States whose own description of what they do matches “IT services 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 services 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 services firms, 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, 386 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 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 services 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 services firms are there based in Washington, United States?

RevenueBase identified 129 IT services firms 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?

Computer World Services Corp. CWS, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most IT services firms?

New York leads the United States with 691 headquartered companies, followed by Houston (469) and Dallas (340). Washington has 129.

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 386 verified decision-maker contacts tracked across these 129 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.