Company lists · Data refreshed September 2026
Top 25 Private equity portfolio companies based in Washington, United States
RevenueBase identified 70 private equity portfolio companies headquartered in Washington, United States as of September 2026 and tracks 3,748 professional contacts across them, including 2,040 with verified work emails. New York is the largest hub.
This list covers private equity portfolio 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 25 largest private equity portfolio companies based in Washington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,515 | ||||
“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…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 254 | ||||
“For almost a century, regulatory barriers made it difficult for individuals to invest in private markets, giving billion-dollar institutions preferred access.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 152 | ||||
“Founded in 1992, JMI Equity has focused on investing in exceptional software and AI-driven companies from scaling stages through later growth.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 91 | ||||
“ACON Investments is a private equity investment firm led by a cohesive team that has been investing together for over 25 years.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 90 | ||||
“Dark Alpha Capital is an investment firm focused on acquiring private companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 63 | ||||
“Anzu Partners is a venture capital and private equity firm that invests in breakthrough industrial technologies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | Halifax GroupPartial evidence | 49 | |||
“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…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | Updata PartnersPartial evidence | 33 | |||
“Updata Partners is a leading technology-focused growth equity firm in Washington D.C.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | HCI Equity PartnersPartial evidence | 31 | |||
“HCI Equity Partners is now Oridian Capital Partners.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 25 | ||||
“Accolade Partners is an alternative investment firm that specializes in technology and healthcare-focused venture capital and growth equity fund investments.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 22 | ||||
“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…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 21 | ||||
“CAPITOL MERIDIAN PARTNERS (“CMP”) is a private investment firm founded in 2021 by seasoned investors Adam Palmer and Brooke Coburn.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | NEW Markets Venture PartnersIndirect evidence | 20 | |||
“New Markets Venture Partners is a leading early- and growth-stage venture capital firm that invests in and helps build transformative education, information technology and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | Questa CapitalPartial evidence | 17 | |||
“Questa Capital is a venture growth equity firm focused on later-stage investing in the healthcare services, healthcare technology, and medical device sectors.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | Juggernaut Capital PartnersStrong evidence | 17 | |||
“Juggernaut Capital Partners is a lower middle market private equity firm specializing in buyout and growth investments across the consumer and healthcare sectors.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 17 | ||||
“We purposefully engage only in friendly transactions and work with talented management teams to achieve transformative results.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 | ||||
“Godspeed Capital is a lower middle-market Defense & Government services, solutions, and technology focused private equity firm investing alongside forward-thinking management…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Temerity Capital PartnersPartial evidence | 15 | |||
“Temerity Capital Partners is a private investment company managed on behalf of its founder, his family interests, and eligible employees.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 14 | ||||
“Avenue is an early growth equity firm.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Swan & Legend Venture PartnersIndirect evidence | 14 | |||
“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…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | Springharbor Financial Group LLCPartial evidence | 13 | |||
“SpringHarbor is a private investment firm based in Washington, DC founded by former Comptroller of the Currency, Eugene Ludwig.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 12 | ||||
“Astra specializes in growth buyouts in the Communications and Technology Services industries.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | United Western Group UWGStrong evidence | 11 | |||
“United Western Group is a private equity firm based in Washington, D.C.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | Multiplier CapitalIndirect evidence | 10 | |||
“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…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 | ||||
“Farragut Capital Partners is a privately-held investment management firm providing private capital (usually senior sub debt and/or preferred equity) to finance outstanding…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 70 private equity portfolio companies based in Washington, United States
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Private equity portfolio companies based in Washington, United States at a glance
As of Sep 5, 2026Companies by employee count
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 70 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 private equity portfolio companies, 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 “private equity portfolio companies”. 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 private equity portfolio 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 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, 2,040 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 5, 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.
Private equity portfolio companies by metro in the United States
- Private equity portfolio companies in New York913
- Private equity portfolio companies in Chicago289
- Private equity portfolio companies in San Francisco230
- Private equity portfolio companies in Dallas229
- Private equity portfolio companies in Los Angeles213
- Private equity portfolio companies in Boston180
- Private equity portfolio companies in Houston152
- Private equity portfolio companies in Austin151
- Private equity portfolio companies in Miami148
- Private equity portfolio companies in Atlanta124
- Private equity portfolio companies in Denver92
- Private equity portfolio companies in Charlotte71
- Private equity portfolio companies in Washington70
- Private equity portfolio companies in San Diego52
- Private equity portfolio companies in Greenwich48
- Private equity portfolio companies in Tampa46
- Private equity portfolio companies in Nashville42
- Private equity portfolio companies in Seattle42
- Private equity portfolio companies in Cleveland40
- Private equity portfolio companies in Minneapolis40
- Private equity portfolio companies in Birmingham39
- Private equity portfolio companies in Newport Beach39
- Private equity portfolio companies in Philadelphia39
- Private equity portfolio companies in Menlo Park38
- Private equity portfolio companies in New York City38
- Private equity portfolio companies in Beverly Hills37
- Private equity portfolio companies in Palo Alto37
- Private equity portfolio companies in Salt Lake City33
- Private equity portfolio companies in Scottsdale33
- Private equity portfolio companies in Phoenix31
- Private equity portfolio companies in Santa Monica29
- Private equity portfolio companies in Boca Raton27
- Private equity portfolio companies in Fort Lauderdale26
- Private equity portfolio companies in West Palm Beach25
Frequently asked
How many private equity portfolio companies are there based in Washington, United States?
RevenueBase identified 70 private equity portfolio 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?
The Carlyle Group, headquartered in Washington, tops this list with the largest team on record.
Which city has the most private equity portfolio companies?
New York leads with 913 headquartered companies, followed by Chicago (289) and San Francisco (230).
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 2,040 verified decision-maker contacts tracked across these 70 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 5, 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.
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