Company lists · Data refreshed September 2026
Top 24 Private equity infrastructure firms based in Washington, United States
RevenueBase identified 47 private equity infrastructure firms headquartered in Washington, United States as of September 2026 and tracks 3,552 professional contacts across them, including 1,891 with verified work emails. Across the United States, New York is the largest hub for this category (807 companies); Washington has 47.
This list covers private equity infrastructure firms 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 29, 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.
The 24 largest private equity infrastructure firms based in Washington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,515 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 199 contacts → | ||||
Partial evidence “EIG is a leading institutional investor in the global energy and infrastructure sectors with $27.9 billion assets under management as of June 30, 2026.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 152 contacts → | ||||
Partial evidence “Founded in 1992, JMI Equity has focused on investing in exceptional software and AI-driven companies from scaling stages through later growth.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 91 contacts → | ||||
Strong evidence “ACON Investments is a private equity investment firm led by a cohesive team that has been investing together for over 25 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 90 contacts → | ||||
Partial evidence “Dark Alpha Capital is an investment firm focused on acquiring private companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 74 contacts → | ||||
Partial evidence “Founded in Astris Finance, a Colliers company, is an independent financial advisory firm specialized in the Infrastructure and Energy (I&E) sectors with an exceptional track…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 51 contacts → | ||||
Partial evidence “National Real Estate Advisors is an investment manager developing, operating, and managing commercial real estate and infrastructure projects across the United States.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 49 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 31 contacts → | ||||
Partial evidence “HCI Equity Partners is now Oridian Capital Partners.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 25 contacts → | ||||
Indirect evidence “CCM Group is a Washington, DC-based investment firm dedicated to generating superior, risk-adjusted returns on its investments.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 22 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 16 contacts → | ||||
Strong evidence “Godspeed Capital is a lower middle-market Defense & Government services, solutions, and technology focused private equity firm investing alongside forward-thinking management…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 contacts → | ||||
Partial evidence “SpringHarbor is a private investment firm based in Washington, DC founded by former Comptroller of the Currency, Eugene Ludwig.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 11 contacts → | ||||
Strong evidence “United Western Group is a private equity firm based in Washington, D.C.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 8 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Partial evidence “Northwood Healthcare Partners is a healthcare private investment firm focused on partnering with founders and business owners to build market leading healthcare services companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Strong evidence “Pencek Advisors partners with middle market private equity firms, portfolio companies, and founder-owned businesses to execute on strategic initiatives and create sustained value.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Partial evidence “Carlyle Airport Group ("CAG") is The Carlyle Group’s dedicated US-based investment platform for airport infrastructure investment opportunities globally.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Partial evidence “Next Sector Capital, LLC (NSC) is a private investment firm driving growth and top-quartile returns through unwavering commitment to global impact.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Strong evidence “Falcon Capital LLC is a private equity firm based in Washington, DC that offers investors the opportunity to achieve financial freedom through dependable passive income from…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Strong evidence “Impel Capital is a private capital firm providing custom credit and equity investment solutions to companies with Revenue between $10m and $100m.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “At Quoth, we believe that true value creation transcends traditional financial metrics.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “American Elm Capital is a boutique investment firm that buys stable, profitable businesses in any industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: private equity infrastructure firms. 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 private equity infrastructure firms.
- Partial evidence
- Its own public description names part of private equity infrastructure firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name private equity infrastructure firms. 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 24 of 47 private equity infrastructure firms based in Washington, United States
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Private equity infrastructure firms based in Washington, United States at a glance
As of Sep 29, 2026Companies by employee count
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 47 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 infrastructure firms, 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 “private equity infrastructure firms”. 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 private equity infrastructure firms), 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 private equity infrastructure firms, 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, 1,891 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 29, 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 infrastructure firms by metro in the United States
- Private equity infrastructure firms in New York807
- Private equity infrastructure firms in Chicago252
- Private equity infrastructure firms in Dallas202
- Private equity infrastructure firms in Houston180
- Private equity infrastructure firms in Los Angeles164
- Private equity infrastructure firms in San Francisco146
- Private equity infrastructure firms in Miami141
- Private equity infrastructure firms in Boston132
- Private equity infrastructure firms in Austin130
- Private equity infrastructure firms in Atlanta96
- Private equity infrastructure firms in Denver86
- Private equity infrastructure firms in Charlotte61
- Private equity infrastructure firms in San Diego43
- Private equity infrastructure firms in Nashville41
- Private equity infrastructure firms in Newport Beach39
- Private equity infrastructure firms in Tampa39
- Private equity infrastructure firms in Philadelphia37
- Private equity infrastructure firms in New York City34
- Private equity infrastructure firms in Salt Lake City31
- Private equity infrastructure firms in Stamford31
- Private equity infrastructure firms in Boca Raton30
- Private equity infrastructure firms in Cleveland30
- Private equity infrastructure firms in Beverly Hills29
- Private equity infrastructure firms in Birmingham29
- Private equity infrastructure firms in Seattle29
- Private equity infrastructure firms in Minneapolis28
- Private equity infrastructure firms in West Palm Beach28
- Private equity infrastructure firms in Scottsdale27
- Private equity infrastructure firms in Santa Monica25
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 private equity infrastructure firms, 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 private equity infrastructure firms are there based in Washington, United States?
RevenueBase identified 47 private equity infrastructure firms 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 in the United States has the most private equity infrastructure firms?
New York leads the United States with 807 headquartered companies, followed by Chicago (252) and Dallas (202). Washington has 47.
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 1,891 verified decision-maker contacts tracked across these 47 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 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 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.
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