Company lists · Data refreshed September 2026

Top 25 Portfolio company consulting firms based in Washington, United States

Name: Portfolio company 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 29, 2026 92 companies tracked

RevenueBase identified 92 company matches for portfolio company consulting firms associated with Washington, United States as of September 2026 and tracks 1,038 professional contacts across them, including 242 with verified work emails. Across the United States, New York is the largest hub for this category (848 companies); Washington has 92.

This list covers company matches for portfolio company 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 29, 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 29, 2026 How this list was built

92Companies

1,038Contacts tracked

242Verified emails

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The 25 largest portfolio company consulting firms based in Washington, United States

Ranked by team size

Top 25 of 92 company matches for portfolio company consulting firms based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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	Kaiser Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
2	The Cohen Group	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	110 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Dark Alpha Capital LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	n/a	90 contacts →
	Exact match “Dark Alpha Capital is an investment firm focused on acquiring private companies.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Cortado Group	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	33 contacts →
	Exact match “We deliver rapid, measurable top-line improvements for smaller, investor-backed growth companies across multiple industries At the Cortado Group, our go-to-market experts help…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	HCI Equity Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	31 contacts →
	Exact match “HCI Equity Partners is now Oridian Capital Partners.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	5ft View Consulting, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	27 contacts →
	Exact match “You need senior leadership you can trust.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Ankura Joint Venture And Partnership Practice	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	24 contacts →
	Exact match “Ankura is the world’s leading advisor on joint ventures and partnerships.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	IBS Management & Consultancy Services	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
9	DHS Ventures & Holdings	Exact match	Washington, United StatesHQ recorded Sep 29, 2026	201-500	17 contacts →
	Exact match “We purposefully engage only in friendly transactions and work with talented management teams to achieve transformative results.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Taylor Advisory LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	12 contacts →
	Exact match “Taylor is a strategic M&A advisory firm with the mission to generate wealth and fulfillment for our clients, associates, and shareholders by building trusted relationships…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	United Western Group UWG	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	11 contacts →
	Exact match “United Western Group is a private equity firm based in Washington, D.C.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Blitzer, Clancy & Company	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	9 contacts →
	Exact match “Blitzer, Clancy & Company is a global leader in M&A advisory, growth consulting, and strategic advisory services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Dunia Frontier Consultants	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	8 contacts →
	Exact match “With main offices in Washington DC, Dubai, and Kampala, Dunia Frontier Consultants (DFC) provides consulting services, market research and business intelligence to investors and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Growthlab	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	7 contacts →
	Exact match “We are matchmakers, growth advisors, business planners, intelligence suppliers, team builders, opportunity shapers, pipeline developers, and transition strategists–experts who…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Jasper Advisors	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	7 contacts →
	Exact match “Founded by Julie Andreeff Jensen and David Sutphen, Jasper Advisors is a boutique consultancy that advises CEOs, Fortune 500 companies, and emerging businesses; non-profit leaders…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Outvox	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	6 contacts →
	Exact match “OutVox is a boutique management consultancy.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	OAG M&a Transaction Services O'connell Advisory Group	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	6 contacts →
	Exact match “OAG is a team of CPA M&A advisors who provide Financial Due Diligence and Transaction Advisory Services for Entrepreneurs and Investors.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Jewett And Company	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	5 contacts →
	Exact match “Your business is our business.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Operating Partners Group INC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	5 contacts →
	Exact match “We work with entrepreneurs, private equity companies, and corporate clients to grow value the right way.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Izar Capital Group	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	5 contacts →
	Exact match “We create, structure and execute custom-made corporate finance (M&A, Joint Venture/Partnership, Financing) and operational solutions that enhance and optimize business…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	TVD Capital Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	5 contacts →
	Exact match “Founded on a commitment to enduring long-term value creation, we actively engage with our companies post-acquisition and partner with top-tier management teams industry leaders…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	LN Holdings INC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	4 contacts →
	Exact match “LN Holdings Inc.(LNH) is a boutique M&A and business advisory firm focused on the government contracting marketplace.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Cortland Advisors, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	3 contacts →
	Exact match “Cortland Advisors is a mergers and acquisitions advisory firm providing experienced expertise by industry professionals that have successfully created, grown, acquired and exited…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Pencek Advisors	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	11-50	3 contacts →
	Exact match “Pencek Advisors partners with middle market private equity firms, portfolio companies, and founder-owned businesses to execute on strategic initiatives and create sustained value.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Claroti	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	1-10	3 contacts →
	Exact match “We turn overlooked products into new revenue-fast, smart, and without reinventing a thing.” Recorded in the RevenueBase company graph · Sep 29, 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 “portfolio company 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 92 portfolio company consulting firms based in Washington, United States

See the full list, filter by size, metro and specialty, and access 242 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Portfolio company consulting firms based in Washington, United States at a glance

As of Sep 29, 2026

23.3%Verified-email coverage

11.3Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 92 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 “portfolio company 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 242 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 29, 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.

Portfolio company 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 “portfolio company consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 92 company matches for portfolio company 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?

Kaiser Associates 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 portfolio company consulting firms?

New York leads the United States with 848 company records, followed by Chicago (313) and Los Angeles (242). Washington has 92.

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 242 professional contacts with verified work emails tracked across these 92 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 29, 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.