Company lists · Data refreshed September 2026

Top 25 Big 4 business consulting firms based in Washington, United States

Name: Big 4 business 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 21, 2026 103 companies tracked

RevenueBase identified 103 company matches for big 4 business consulting firms associated with Washington, United States as of September 2026 and tracks 4,233 professional contacts across them, including 2,110 with verified work emails. Across the United States, New York is the largest hub for this category (152 companies); Washington follows with 103.

This list covers company matches for big 4 business consulting firms associated with Washington, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

103Companies

4,233Contacts tracked

2,110Verified emails

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The 25 largest big 4 business consulting firms based in Washington, United States

Ranked by team size

Top 25 of 103 company matches for big 4 business consulting firms based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	BRG	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,051 contacts →
	Exact match “BRG combines world-leading academic credentials with world-tested business expertise, purpose-built for agility and connectivity, which sets us apart-and gets our clients ahead.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	IBM Promontory	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	501-1,000	403 contacts →
	Exact match “IBM Promontory is a global leader in strategy, risk management, and compliance consulting.#IBMConsulting” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Kaiser Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	397 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Integrated Finance & Accounting Solutions Ifas	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	201-500	111 contacts →
	Exact match “IFAS is a professional services firm that leverages technology to provide integrated financial management solutions and capabilities that include Program Budgeting & Cost…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Arlo Solutions	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	100 contacts →
	Exact match “Arlo Solutions (Arlo), is a Washington, DC professional services company, providing cybersecurity and management consulting services to the US government in the defense…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Blue Water Thinking	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	91 contacts →
	Exact match “Strategy, Management and Technology Consultancy” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Raffa, PC	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	1,001-5,000	87 contacts →
	Exact match “Top accounting firm Raffa, P.C.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Cascades Technologies, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	47 contacts →
	Exact match “Cascades Technologies is a Professional Consulting and IT Services firm with a commitment to personal and profession integrity.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Capital Group	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	43 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Trust Consulting Services INC	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	201-500	42 contacts →
	Exact match “We bring an experience unmatched anywhere else, with knowledgeable and thoughtful consultants plus flexible, tailored approaches, all centered on the right outcomes for your…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Bazilio Cobb Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	201-500	28 contacts →
	Exact match “Since our founding in 1983, Bazilio Cobb Associates has provided professional services to federal, state, and local government agencies; Fortune 500 companies; nonprofit…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Falcon Capital Advisors	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	26 contacts →
	Exact match “Falcon Capital Advisors is a Washington, D.C.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Bellamy Management Services	Exact match	Washington, United StatesHQ recorded Sep 21, 2026	51-200	23 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	532 Group LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	1-10	22 contacts →
	Exact match “532 Group LLC (“532 Group”) is a innovation, operations and technology consulting firm providing services to government, health, and financial sector clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	IBS Management & Consultancy Services	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	21 contacts →
	Exact match “IBS is an Accounting, Finance, Management, and Transaction Advisory consulting firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Raye IT Consulting	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	19 contacts →
	Exact match “Founded in 2015, Raye IT Consulting, LLC is an 8(a) certified Woman Owned Small Business headquartered in Raleigh NC with a location in Washington, DC.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Quatt Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	19 contacts →
	Exact match “Quatt Associates, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Jefferson Consulting Group	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	19 contacts →
	Exact match “JCG is a woman-owned, Washington, DC professional services firm that provides results-driven advice and hands-on assistance to our industry clients and government customers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Chirality Capital Consulting	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	16 contacts →
	Exact match “Chirality Capital Consulting is an industry leading strategy and technology consulting firm that provides a full range of professional services in the areas of strategy, business…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Jlan Solutions	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	1-10	16 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	2ndwave LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	15 contacts →
	Exact match “2ndWave LLC is a management and technology consulting firm providing a focused set of financial management, program management, and technology solutions to public and private…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Innovative Federal Strategies	Exact match	Washington, United StatesHQ recorded Sep 21, 2026	11-50	13 contacts →
	Exact match “Innovative Federal Strategies provides big firm results with a small firm feel.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Focalpoint Consulting Group	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	13 contacts →
	Exact match “FocalPoint Consulting Group is a Washington DC-based management and technology consulting firm serving the government and private sectors.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Bell Creek Consulting	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	12 contacts →
	Exact match “Bell Creek Consulting is a growing mission-‐driven firm launched by alumni of top‐tier strategy consultancies.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Technology & Business Management, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	10 contacts →
	Exact match “Technology & Business Management (TBM), Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “big 4 business consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 103 big 4 business consulting firms based in Washington, United States

See the full list, filter by size, metro and specialty, and access 2,110 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Big 4 business consulting firms based in Washington, United States at a glance

As of Sep 21, 2026

49.8%Verified-email coverage

41.1Average contacts per company

11-50Median size (employees)

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 103 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Washington, United States whose business descriptions match “big 4 business consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,110 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Big 4 business consulting firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “big 4 business consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many big 4 business consulting firms are there based in Washington, United States?

RevenueBase identified 103 company matches for big 4 business consulting firms associated with Washington, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

BRG tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most big 4 business consulting firms?

New York leads the United States with 152 company records, followed by Washington (103) and Atlanta (85).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,110 professional contacts with verified work emails tracked across these 103 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 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.