Company lists · Data refreshed September 2026

Top 25 Impact-focused private equity firms based in Washington, United States

RevenueBase identified 75 impact-focused private equity firms headquartered in Washington, United States as of September 2026 and tracks 1,162 professional contacts across them, including 382 with verified work emails. Across the United States, New York is the largest hub for this category (519 companies); Washington has 75.

This list covers impact-focused private equity 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 28, 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 28, 2026 86% judged on-target in blind review
75Companies
1,162Contacts tracked
382Verified emails
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The 25 largest impact-focused private equity firms based in Washington, United States

Ranked by team size
Top 25 of 75 impact-focused private equity firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to impact-focused private equity 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-20091 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 28, 2026
2Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-20086 contacts →

Indirect evidence

“At Delphos, we believe that progress and sustainability drive everyone’s aspirations, regardless of geography, religion or ethnicity.”

Source: RevenueBase Database · checked Sep 28, 2026
3Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-20085 contacts →

Strong evidence

“Small Enterprise Assistance Funds (SEAF) is a global impact private equity manager focused on providing growth capital and operational support to small and medium-sized…”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-20079 contacts →

Indirect evidence

“Calvert Research and Management is a leader in Responsible Investing.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5060 contacts →

Indirect evidence

“Grassroots Business Fund (GBF) strives to create a world where economic opportunity reaches everyone, growing viable businesses that generate sustainable earnings or savings for…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5039 contacts →

Indirect evidence

“Quona Capital is a venture capital firm that invests in financial technology companies in emerging markets.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5035 contacts →

Indirect evidence

“Our mission is to increase the amount and effectiveness of capital allocation for the greater good, as described in the UN SDGs, by increasing trust in the social and…”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5031 contacts →

Partial evidence

“HCI Equity Partners is now Oridian Capital Partners.”

Source: RevenueBase Database · checked Sep 28, 2026
9Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5030 contacts →

Strong evidence

“Emerging Capital Partners (ECP) is one of the longest-established private equity fund managers focused on Africa.”

Source: RevenueBase Database · checked Sep 28, 2026
10Strong evidenceWashington, United StatesHQ checked Sep 28, 202611-5025 contacts →

Strong evidence

“Accolade Partners is an alternative investment firm that specializes in technology and healthcare-focused venture capital and growth equity fund investments.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5025 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 28, 2026
12Partial evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5023 contacts →

Partial evidence

“Planet Partnerships is a boutique investment and financial advisory firm specializing in the mobilization of blended finance and private capital.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceWashington, DC, United StatesHQ checked Sep 28, 20261-1021 contacts →

Partial evidence

“CAPITOL MERIDIAN PARTNERS (“CMP”) is a private investment firm founded in 2021 by seasoned investors Adam Palmer and Brooke Coburn.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5021 contacts →

Partial evidence

“Total Impact Capital's mission is to mobilize impact-seeking capital into scaling financially viable impactful projects, initiatives, and ventures that make the planet cleaner…”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 20261-1020 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 20261-1020 contacts →

Indirect evidence

“Zeal Capital Partners is a leading venture capital firm based in Washington, DC that invests in diverse management teams building enduring companies to generate above market rate…”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5019 contacts →

Indirect evidence

“AV Ventures is ACDI/VOCA’s investment management subsidiary.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5016 contacts →

Partial evidence

“Terra Alpha Investments is public equity manager that is 100% dedicated to sustainable investing.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-5012 contacts →

Indirect evidence

“Thesis Minded Investors.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-509 contacts →

Partial evidence

“Open Road eliminates funding delays and accelerates growth for high-impact companies.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 2026201-5008 contacts →

Indirect evidence

“Aton Path is a global strategy and execution platform built to bridge governments, capital markets, and industry.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 20261-107 contacts →

Indirect evidence

“Sustainability is becoming central to consumer and business decision-making.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 20261-107 contacts →

Indirect evidence

“Seven Capital invests in early-stage startups that use scalable, technology-enabled solutions to improve communities in emerging & frontier markets.”

Source: RevenueBase Database · checked Sep 28, 2026
24Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 202611-507 contacts →

Strong evidence

“Pan African Capital Group, LLC is a private equity and investment banking firm focused exclusively on Sub-Saharan Africa.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 20261-105 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 28, 2026

Showing 25 of 75 impact-focused private equity firms based in Washington, United States

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Impact-focused private equity firms based in Washington, United States at a glance

As of Sep 28, 2026
32.9%Verified-email coverage
15.5Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
38
11-50
29
51-200
5
201-500
2
1,001-5,000
1

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 75 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 impact-focused private equity 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 “impact-focused private equity 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 impact-focused private equity 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 impact-focused private equity 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, 382 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 28, 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.

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 impact-focused private equity 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 impact-focused private equity firms are there based in Washington, United States?

RevenueBase identified 75 impact-focused private equity 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?

Acon Investments, L.L.C, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most impact-focused private equity firms?

New York leads the United States with 519 headquartered companies, followed by San Francisco (165) and Chicago (143). Washington has 75.

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 382 verified decision-maker contacts tracked across these 75 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 28, 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.