Company lists · Data refreshed September 2026

Top 17 IT consulting firms based in Washington, United States

Name: IT consulting 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 4, 2026 324 companies tracked

RevenueBase identified 324 IT consulting firms headquartered in Washington, United States as of September 2026 and tracks 3,821 professional contacts across them, including 1,115 with verified work emails. New York is the largest hub.

This list covers IT consulting 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

324Companies

3,821Contacts tracked

1,115Verified emails

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The 17 largest IT consulting firms based in Washington, United States

Ranked by team size

Top 17 of 324 IT consulting firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Techunity, INCIndirect evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	51-200	157
	Source: company website · checked Sep 4, 2026
2	DHA Group, INCPartial evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	201-500	135
	“DHA is a full-service Information Technology and Consulting firm dedicated to providing mission-critical services to our Federal Government and commercial clients.” Source: company website · checked Sep 4, 2026
3	Telesolv ConsultingIndirect evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	201-500	129
	“To become a demand business, an organization must constantly improve the value created by its core business processes.” Source: company website · checked Sep 4, 2026
4	Networking For Future NFFIndirect evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	51-200	108
	“Since 1996, Networking For Future, Inc.(NFF) has been engineering the backbone of mission-critical systems for government and enterprise clients.” Source: company website · checked Sep 4, 2026
5	Blue Water ThinkingIndirect evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	51-200	91
	“Strategy, Management and Technology Consultancy” Source: company website · checked Sep 4, 2026
6	Longevity ConsultingStrong evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	51-200	71
	“Longevity Consulting is a customer-focused strategic management and IT consulting firm that helps federal agencies achieve mission objectives, improve outcomes, and strengthen…” Source: company website · checked Sep 4, 2026
7	Metis StrategyIndirect evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	51-200	53
	“Operating at the intersection of technology, business, and innovation, Metis Strategy propels decision-makers forward with pragmatic solutions, actionable insights, and access to…” Source: company website · checked Sep 4, 2026
8	Prosource360 Consulting ServicesPartial evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	51-200	48
	“Founded in 2011, ProSource360 is a premier professional, healthcare and technology services consulting firm supporting federal and commercial markets.” Source: company website · checked Sep 4, 2026
9	Cascades Technologies, INCStrong evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	51-200	47
	“Cascades Technologies is a Professional Consulting and IT Services firm with a commitment to personal and profession integrity.” Source: company website · checked Sep 4, 2026
10	Digidoc, Inc. DBA Public Sector Solutions GroupPartial evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	51-200	44
	“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: company website · checked Sep 4, 2026
11	Trust Consulting Services INCIndirect evidence	Washington, United StatesHQ checked Sep 4, 2026	201-500	41
	“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: company website · checked Sep 4, 2026
12	Avid Systems LLCPartial evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	51-200	36
	“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: company website · checked Sep 4, 2026
13	Esentio TechnologiesPartial evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	11-50	34
	“eSentio Technologies is a leading provider of business and technology consulting and implementation services to the world’s largest law firms.” Source: company website · checked Sep 4, 2026
14	HekimaPartial evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	11-50	32
	“At Hekima, we’re redefining how organizations approach IT solutions.” Source: company website · checked Sep 4, 2026
15	Compass SolutionsIndirect evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	51-200	31
	“Compass Solutions, LLC is a leading Information Technology company that delivers technology solutions that fit the business model of its clients.” Source: company website · checked Sep 4, 2026
16	Ip-Plus Consulting, INCStrong evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	11-50	27
	“iP-PLUS CONSULTING is an IT solutions company that focuses on providing high quality professionals, innovative technical solutions, and delivering exceptional service support to…” Source: company website · checked Sep 4, 2026
17	Falcon Capital AdvisorsIndirect evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	51-200	26
	“Falcon Capital Advisors is a Washington, D.C.” Source: company website · checked Sep 4, 2026

Showing 17 of 324 IT consulting firms based in Washington, United States

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

As of Sep 4, 2026

1-10Median size (employees)

New YorkLargest hub · 1002 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

167

11-50

112

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 324 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 firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among IT consulting 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 an evidence 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, 1,115 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 4, 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 firms by metro in the United States

Frequently asked

How many IT consulting firms are there based in Washington, United States?

RevenueBase identified 324 IT consulting 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?

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

Which city has the most IT consulting firms?

New York leads with 1002 headquartered companies, followed by Houston (627) and Dallas (504).

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 1,115 verified decision-maker contacts tracked across these 324 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 4, 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.