Company lists · Data refreshed September 2026

Top 24 Co-investment firms based in Washington, United States

Name: Co-investment 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 27, 2026 51 companies tracked

RevenueBase identified 51 co-investment firms headquartered in Washington, United States as of September 2026 and tracks 850 professional contacts across them, including 423 with verified work emails. Across the United States, New York is the largest hub for this category (945 companies); Washington has 51.

This list covers co-investment 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 27, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review

51Companies

850Contacts tracked

423Verified emails

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The 24 largest co-investment firms based in Washington, United States

Ranked by team size

Top 24 of 51 co-investment firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to co-investment firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Fundrise	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	201-500	254 contacts →
	Indirect evidence “For almost a century, regulatory barriers made it difficult for individuals to invest in private markets, giving billion-dollar institutions preferred access.” Source: RevenueBase Database · checked Sep 27, 2026
2	JMI Equity	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	51-200	152 contacts →
	Indirect 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 27, 2026
3	Dark Alpha Capital LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	n/a	90 contacts →
	Partial evidence “Dark Alpha Capital is an investment firm focused on acquiring private companies.” Source: RevenueBase Database · checked Sep 27, 2026
4	Revolution	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	81 contacts →
	Partial evidence “Founded by Steve Case in 2005, Revolution is a D.C-based investment firm that backs transformative companies beyond Silicon Valley.” Source: RevenueBase Database · checked Sep 27, 2026
5	Halifax Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	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 27, 2026
6	Olympus Pines	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	25 contacts →
	Indirect evidence “Olympus Pines creates superior value for our investors by prioritizing our employees.” Source: RevenueBase Database · checked Sep 27, 2026
7	CCM Group LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	25 contacts →
	Partial 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 27, 2026
8	MOGUL	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	22 contacts →
	Partial evidence “mogul is a fractional real estate investment firm founded by former Goldman Sachs executives with over $10 billion deployed in real estate.” Source: RevenueBase Database · checked Sep 27, 2026
9	Temerity Capital Partners	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	15 contacts →
	Partial evidence “Temerity Capital Partners is a private investment company managed on behalf of its founder, his family interests, and eligible employees.” Source: RevenueBase Database · checked Sep 27, 2026
10	United Western Group UWG	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	11-50	11 contacts →
	Indirect evidence “United Western Group is a private equity firm based in Washington, D.C.” Source: RevenueBase Database · checked Sep 27, 2026
11	Farragut Capital Partners	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	8 contacts →
	Partial 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 27, 2026
12	SAX Capital	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	6 contacts →
	Partial evidence “SAX Capital is a venture capital investment advisor that focuses on secondary investments and crypto token presales (SAFT, IFFT, etc) using the AngelList platform.” Source: RevenueBase Database · checked Sep 27, 2026
13	AAF Management LTD	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	4 contacts →
	Indirect evidence “AAF Management Ltd.(AAF) is a leading early-stage venture capital firm focused on pre-Seed, Seed, and Series A stage technology companies in North America.” Source: RevenueBase Database · checked Sep 27, 2026
14	Fourthline Capital Management, LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	4 contacts →
	Partial evidence “Fourthline Capital Management, LLC is a direct investment platform focused on acquiring and developing commercial real estate assets in exceptional locations across the South East…” Source: RevenueBase Database · checked Sep 27, 2026
15	Camino Capital Management LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
16	Northwood Healthcare Partners	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	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 27, 2026
17	Serendipity Equity Group	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Indirect evidence “Serendipity Equity Group (SEG) operates at the intersection of capital and execution.” Source: RevenueBase Database · checked Sep 27, 2026
18	Vantage Realty Capital	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Partial evidence “Vantage Realty Capital, or VRC for short, is a real estate investment firm focused on protecting our investment partners and building portfolios to help deliver current cash flow…” Source: RevenueBase Database · checked Sep 27, 2026
19	Falcon Capital Investments LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Indirect 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 27, 2026
20	MCS Ventures	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Indirect evidence “Acquiring majority stakes in businesses focused on a multicultural consumer” Source: RevenueBase Database · checked Sep 27, 2026
21	Hivers & Strivers Capital	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Indirect evidence “Hivers & Strivers Capital invests exclusively in profound companies led by U.S.” Source: RevenueBase Database · checked Sep 27, 2026
22	Impel Capital	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Partial 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 27, 2026
23	American ELM Capital	Partial evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Partial evidence “American Elm Capital is a boutique investment firm that buys stable, profitable businesses in any industry.” Source: RevenueBase Database · checked Sep 27, 2026
24	Zenith Capital	Indirect evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Indirect evidence “Zenith Capital is a venture capital & growth equity firm based in Washington, D.C.” Source: RevenueBase Database · checked Sep 27, 2026

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: co-investment 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 co-investment firms.
Partial evidence: Its own public description names part of co-investment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name co-investment 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 51 co-investment firms based in Washington, United States

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Co-investment firms based in Washington, United States at a glance

As of Sep 27, 2026

49.8%Verified-email coverage

16.7Average contacts per company

1-10Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 51 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 co-investment 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 “co-investment 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 co-investment 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 co-investment 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, 423 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 27, 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.

Co-investment firms by metro in the United States

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 co-investment 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 co-investment firms are there based in Washington, United States?

RevenueBase identified 51 co-investment 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?

Fundrise, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most co-investment firms?

New York leads the United States with 945 headquartered companies, followed by San Francisco (268) and Chicago (250). Washington has 51.

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 423 verified decision-maker contacts tracked across these 51 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 27, 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.