Company lists · Data refreshed September 2026

Top 25 Upper middle market private equity firms based in Washington, United States

Name: Upper middle market private equity 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 61 companies tracked

RevenueBase identified 61 company matches for upper middle market private equity firms associated with Washington, United States as of September 2026 and tracks 3,532 professional contacts across them, including 1,883 with verified work emails. Across the United States, New York is the largest hub for this category (988 companies); Washington has 61.

This list covers company matches for upper middle market private equity 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

61Companies

3,532Contacts tracked

1,883Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest upper middle market private equity firms based in Washington, United States

Ranked by team size

Top 25 of 61 company matches for upper middle market private equity 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	The Carlyle Group	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,515 contacts →
	Exact match “Carlyle (NASDAQ: CG) is a global investment firm with deep industry expertise that deploys private capital across three business segments: Global Private Equity, Global Credit…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	JMI Equity	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	152 contacts →
	Exact match “Founded in 1992, JMI Equity has focused on investing in exceptional software and AI-driven companies from scaling stages through later growth.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Acon Investments, L.L.C	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	91 contacts →
	Exact match “ACON Investments is a private equity investment firm led by a cohesive team that has been investing together for over 25 years.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Dark Alpha Capital LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5	Anzu Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	63 contacts →
	Exact match “Anzu Partners is a venture capital and private equity firm that invests in breakthrough industrial technologies.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Halifax Group	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	49 contacts →
	Exact match “Halifax Group is a private investment firm dedicated to partnering with founders and managers of lower middle-market businesses with total enterprise values generally between $50…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Arlington Capital Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	42 contacts →
	Exact match “Arlington Capital Partners is a Washington, D.C-area private investment firm specializing in government regulated industries.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Updata Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	33 contacts →
	Exact match “Updata Partners is a leading technology-focused growth equity firm in Washington D.C.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	HCI Equity Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	31 contacts →
	Exact match “HCI Equity Partners is now Oridian Capital Partners.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Small Business Investor Alliance	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	28 contacts →
	Exact match “The Small Business Investor Alliance is the association of senior investment professionals focused on the lower middle market whose members represent the entire private capital…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	ABS Capital	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	22 contacts →
	Exact match “ABS Capital provides growth equity capital to B2B software and tech-enabled services businesses with strong technology and data underpinnings looking to scale with the right…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Capitol Meridian Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	1-10	21 contacts →
	Exact match “CAPITOL MERIDIAN PARTNERS (“CMP”) is a private investment firm founded in 2021 by seasoned investors Adam Palmer and Brooke Coburn.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Questa Capital	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	1-10	17 contacts →
	Exact match “Questa Capital is a venture growth equity firm focused on later-stage investing in the healthcare services, healthcare technology, and medical device sectors.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Juggernaut Capital Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	17 contacts →
	Exact match “Juggernaut Capital Partners is a lower middle market private equity firm specializing in buyout and growth investments across the consumer and healthcare sectors.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	DHS Ventures & Holdings	Exact match	Washington, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
16	Godspeed Capital Management	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	16 contacts →
	Exact match “Godspeed Capital is a lower middle-market Defense & Government services, solutions, and technology focused private equity firm investing alongside forward-thinking management…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Temerity Capital Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	1-10	15 contacts →
	Exact match “Temerity Capital Partners is a private investment company managed on behalf of its founder, his family interests, and eligible employees.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Avenue Growth Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	1-10	14 contacts →
	Exact match “Avenue is an early growth equity firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Swan & Legend Venture Partners	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	14 contacts →
	Exact match “SWaN & Legend Venture Partners focuses primarily on companies that are building engaging brands, central to consumers’ lives, across a number of industries, as well as the B2B…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Spaulding & Slye Investments	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	13 contacts →
	Exact match “A specialized investment group dedicated to providing high-yield returns through custom-tailored capital solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Springharbor Financial Group LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	13 contacts →
	Exact match “SpringHarbor is a private investment firm based in Washington, DC founded by former Comptroller of the Currency, Eugene Ludwig.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Astra Capital Management	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	12 contacts →
	Exact match “Astra specializes in growth buyouts in the Communications and Technology Services industries.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Woodson Equity	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	12 contacts →
	Exact match “Thesis Minded Investors.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	United Western Group UWG	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
25	Multiplier Capital	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	11-50	10 contacts →
	Exact match “The Multiplier partners, as a team, have invested over $1.6 billion in capital across more than 165 transactions over the past 20+ years, applying 90 years in combined experience…” 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 “upper middle market private equity 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 61 upper middle market private equity firms based in Washington, United States

See the full list, filter by size, metro and specialty, and access 1,883 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Upper middle market private equity firms based in Washington, United States at a glance

As of Sep 21, 2026

53.3%Verified-email coverage

57.9Average contacts per company

1-10Median size (employees)

Sep 21, 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 61 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 “upper middle market private equity 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 1,883 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.

Upper middle market private equity 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 “upper middle market private equity firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many upper middle market private equity firms are there based in Washington, United States?

RevenueBase identified 61 company matches for upper middle market private equity 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?

The Carlyle Group 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 upper middle market private equity firms?

New York leads the United States with 988 company records, followed by Chicago (333) and Dallas (294). Washington has 61.

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 1,883 professional contacts with verified work emails tracked across these 61 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.

Ready to reach these companies? Verified emails and direct dials for all 61 upper middle market private equity firms based in Washington, United States. Start with a free account, no credit card.

Download this list →

Related lists

Upper middle market private equity firms by geography

Browse the directory

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.