Company lists · Data refreshed September 2026

Top 25 Consultancy companies based in Washington, United States

Name: Consultancy 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 24, 2026 458 companies tracked

RevenueBase identified 458 consultancy companies headquartered in Washington, United States as of September 2026 and tracks 3,037 professional contacts across them, including 774 with verified work emails. Across the United States, New York is the largest hub for this category (1,362 companies); Washington has 458.

This list covers consultancy 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 24, 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 24, 2026 86% judged on-target in blind review

458Companies

3,037Contacts tracked

774Verified emails

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The 25 largest consultancy companies based in Washington, United States

Ranked by team size

Top 25 of 458 consultancy companies based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to consultancy 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	Kaiser Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	397 contacts →
	Indirect evidence “Kaiser Associates was founded in 1981 with a simple yet powerful mission: to help executives make more informed strategic and operational decisions by incorporating external…” Source: RevenueBase Database · checked Sep 24, 2026
2	Techunity, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	156 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 24, 2026
3	Herren Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	142 contacts →
	Indirect evidence “Here at Herren, our goals are to drive efficiency and maximize the value of every dollar our clients spend.” Source: RevenueBase Database · checked Sep 24, 2026
4	Telesolv Consulting	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	201-500	132 contacts →
	Indirect evidence “To become a demand business, an organization must constantly improve the value created by its core business processes.” Source: RevenueBase Database · checked Sep 24, 2026
5	The Cohen Group	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	110 contacts →
	Indirect evidence “Who We Are A talented team of experts with years of experience in both government and industry, with a passion for finding solutions and a deep understanding of the institutions…” Source: RevenueBase Database · checked Sep 24, 2026
6	RWD Consulting, LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	201-500	93 contacts →
	Indirect evidence “RWD Consulting, LLC provides a range of management and operations support and consulting services, administrative and logistical services, and technical and creative services to…” Source: RevenueBase Database · checked Sep 24, 2026
7	Blue Water Thinking	Strong evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	91 contacts →
	Strong evidence “Strategy, Management and Technology Consultancy” Source: RevenueBase Database · checked Sep 24, 2026
8	Willpower Consultation	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	75 contacts →
	Indirect evidence “Willpower Consultation offers direct solutions for your corporate strategy.” Source: RevenueBase Database · checked Sep 24, 2026
9	Patomak Global Partners	Strong evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	65 contacts →
	Strong evidence “Patomak is a financial services consultancy that provides industry and regulatory expertise, delivers value in an efficient manner, and provides a competitive edge to companies…” Source: RevenueBase Database · checked Sep 24, 2026
10	Collaborative Mind, LLC Cmind	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
11	Ward Circle Strategies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	52 contacts →
	Indirect evidence “Ward Circle Strategies, Inc.” Source: RevenueBase Database · checked Sep 24, 2026
12	Capital Group	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	43 contacts →
	Indirect evidence “Capital Group is a management consulting firm with more than a decade of experience in providing effective and innovative consulting services to public and private sector clients.” Source: RevenueBase Database · checked Sep 24, 2026
13	Atlas Research	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	201-500	30 contacts →
	Indirect evidence “Atlas Research partners with clients to plan and execute enterprise-level transformation and performance improvement initiatives.” Source: RevenueBase Database · checked Sep 24, 2026
14	Ibility LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	29 contacts →
	Indirect evidence “Ibility, a Service-Disabled Veteran-Owned (SDVOSB), Women-Owned Small Business (WOSB), and Economically Disadvantaged Women Owned Small Business (EDWOSB), is located in the…” Source: RevenueBase Database · checked Sep 24, 2026
15	Falcon Capital Advisors	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	26 contacts →
	Indirect evidence “Falcon Capital Advisors is a Washington, D.C.” Source: RevenueBase Database · checked Sep 24, 2026
16	The Rendon Group, INC	Strong evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	22 contacts →
	Strong evidence “The Rendon Group (TRG) is a Global Strategic Communications Consultancy providing products and services to both public and private sector clients.” Source: RevenueBase Database · checked Sep 24, 2026
17	IBS Management & Consultancy Services	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	21 contacts →
	Indirect evidence “IBS is an Accounting, Finance, Management, and Transaction Advisory consulting firm.” Source: RevenueBase Database · checked Sep 24, 2026
18	Victory SIX Advisors	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	20 contacts →
	Indirect evidence “Victory Six provides industry leaders an unbiased, independent lens, pulling from a wealth of experts with distinguished industry and government backgrounds.” Source: RevenueBase Database · checked Sep 24, 2026
19	Quatt Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	19 contacts →
	Indirect evidence “Quatt Associates, Inc.” Source: RevenueBase Database · checked Sep 24, 2026
20	SZH Consulting	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	18 contacts →
	Indirect evidence “SZH Consulting LLC is a boutique management consulting and coaching firm, specializing in the science and art of organizational effectiveness and executive coaching.” Source: RevenueBase Database · checked Sep 24, 2026
21	Jlan Solutions	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	1-10	16 contacts →
	Indirect evidence “The Ideal Partner for a Successful Mission To meet the ever-changing demands of a dynamic environment, JLAN Solutions has the necessary breadth and depth of experience.” Source: RevenueBase Database · checked Sep 24, 2026
22	Crp, Incorporated	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	1-10	16 contacts →
	Indirect evidence “CRP is a management consulting firm, specializing in state-of-the-art, technology-based solutions that fit the needs of our clients.” Source: RevenueBase Database · checked Sep 24, 2026
23	BIG Impact Tech BIT	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	15 contacts →
	Indirect 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 24, 2026
24	Touchdown Strategies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	1-10	15 contacts →
	Indirect evidence “OUR APPROACH Partner Strong relationships are at the heart of everything we do.” Source: RevenueBase Database · checked Sep 24, 2026
25	Bernuth & Williamson	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	13 contacts →
	Indirect evidence “Bernuth & Williamson provides consulting services in the areas of strategy, change management, and organizational development to leading nonprofits, foundations, associations, and…” Source: RevenueBase Database · checked Sep 24, 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: consultancy 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 consultancy companies.
Partial evidence: Its own public description names part of consultancy companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name consultancy 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 458 consultancy companies based in Washington, United States

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Consultancy companies based in Washington, United States at a glance

As of Sep 24, 2026

25.5%Verified-email coverage

6.6Average contacts per company

1-10Median size (employees)

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

337

11-50

51-200

201-500

501-1,000

10001+

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 458 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 consultancy 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 “consultancy 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 consultancy 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 consultancy 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, 774 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 24, 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.

Consultancy 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 consultancy 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 consultancy companies are there based in Washington, United States?

RevenueBase identified 458 consultancy 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?

Kaiser Associates, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most consultancy companies?

New York leads the United States with 1,362 headquartered companies, followed by Atlanta (672) and Chicago (652). Washington has 458.

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 774 verified decision-maker contacts tracked across these 458 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 24, 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.