Company lists · Data refreshed September 2026

Top 25 Impact investing platforms based in the United States

Name: Impact investing platforms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 381 companies tracked

RevenueBase identified 381 impact investing platforms headquartered in the United States as of September 2026 and tracks 3,074 professional contacts across them, including 1,073 with verified work emails. New York is the largest hub.

This list covers impact investing platforms headquartered in the 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

381Companies

3,074Contacts tracked

1,073Verified emails

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The 25 largest impact investing platforms based in the United States

Ranked by team size

Top 25 of 381 impact investing platforms based in the 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 investing platforms: 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	777 Partners	Partial evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	1,001-5,000	206 contacts →
	Partial evidence “Partners is a Miami-based, alternative investment platform that invests across a number of high-growth attractive verticals with a strong focus on financial services.” Source: RevenueBase Database · checked Sep 28, 2026
2	The Global Impact Investing Network	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	95 contacts →
	Strong evidence “The Global Impact Investing Network, Inc.(GIIN) is the leading industry body for impact investing.” Source: RevenueBase Database · checked Sep 28, 2026
3	Social Investment Managers & Advisors Sima Funds	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	69 contacts →
	Partial evidence “SIMA Funds is a pioneering impact investment firm and social asset manager dedicated to transforming lives at the Bottom of the Pyramid (BoP).” Source: RevenueBase Database · checked Sep 28, 2026
4	ICA Fund	Strong evidence	Oakland, CA, United StatesHQ checked Sep 28, 2026	11-50	64 contacts →
	Strong evidence “ICA Fund’s impact investing practice creates pathways for businesses to grow through active partnership, personalized advising, and flexible capital.” Source: RevenueBase Database · checked Sep 28, 2026
5	Elemental Impact	Strong evidence	Honolulu, HI, United StatesHQ checked Sep 28, 2026	51-200	62 contacts →
	Strong evidence “Elemental Impact is a nonprofit investing platform with 15 years of experience advancing innovative technology that creates lasting economic and climate benefits across…” Source: RevenueBase Database · checked Sep 28, 2026
6	Impactassets	Strong evidence	Bethesda, MD, United StatesHQ checked Sep 28, 2026	51-200	61 contacts →
	Strong evidence “ImpactAssets is an impact investing trailblazer, dedicated to changing the trajectory of our planet’s future and improving the lives of all people.” Source: RevenueBase Database · checked Sep 28, 2026
7	Cultivo	Indirect evidence	Berkeley, CA, United StatesHQ checked Sep 28, 2026	11-50	60 contacts →
	Indirect evidence “Cultivo accelerates investment into nature at scale.” Source: RevenueBase Database · checked Sep 28, 2026
8	GEF Capital Partners	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	55 contacts →
	Indirect evidence “GEF Capital Partners was formed in March 2018 following the completion of a collaborative spinoff from Global Environment Fund, a pioneer in global sustainability and…” Source: RevenueBase Database · checked Sep 28, 2026
9	E8 Angels	Partial evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	n/a	50 contacts →
	Partial evidence “E8 is a membership community of 150+ investors dedicated to funding high-impact cleantech companies.” Source: RevenueBase Database · checked Sep 28, 2026
10	Sunwealth	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 28, 2026	11-50	47 contacts →
	Indirect evidence “Sunwealth’s mission is to invest in the future of energy, generating financial, social and environmental returns for investors and communities.” Source: RevenueBase Database · checked Sep 28, 2026
11	Arctaris Impact Investors	Partial evidence	Chestnut Hill, MA, United StatesHQ checked Sep 28, 2026	11-50	41 contacts →
	Partial evidence “Arctaris Impact Investors, LLC is a Boston-based impact investment firm with experience spanning more than 17 years and eight funds, with both debt and equity investments.” Source: RevenueBase Database · checked Sep 28, 2026
12	Collaborative Fund	Indirect evidence	New York, United StatesHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “Our mission is to identify and support companies that live at the intersection of for-profit & for-good.” Source: RevenueBase Database · checked Sep 28, 2026
13	Sway Capital	Partial evidence	Newport Beach, CA, United StatesHQ checked Sep 28, 2026	51-200	32 contacts →
	Partial evidence “At Sway Capital, we're transforming capital into catalysts and investing in tomorrow's breakthroughs.” Source: RevenueBase Database · checked Sep 28, 2026
14	Inspire Investing	Partial evidence	Meridian, ID, United StatesHQ checked Sep 28, 2026	11-50	31 contacts →
	Partial evidence “Investing That Reflects Your Faith Inspire Investing helps Christian investors align their portfolios with biblical values by providing education, tools, and access to…” Source: RevenueBase Database · checked Sep 28, 2026
15	IMC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 28, 2026	11-50	31 contacts →
	Partial evidence “IMC is a privately held company that strives to be a responsible owner of businesses that make a positive impact on others.” Source: RevenueBase Database · checked Sep 28, 2026
16	MCE Social Capital	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	11-50	31 contacts →
	Strong evidence “MCE Social Capital (MCE) is a nonprofit impact investing firm that provides flexible capital to enterprises committed to generating sustainable livelihoods – with a focus on women…” Source: RevenueBase Database · checked Sep 28, 2026
17	Domini Impact Investments LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	27 contacts →
	Partial evidence “Domini Impact Investments LLC is a women-led SEC registered investment adviser that harnesses the power of finance to help create a better world.” Source: RevenueBase Database · checked Sep 28, 2026
18	Impactalpha	Strong evidence	Berkeley, CA, United StatesHQ checked Sep 28, 2026	1-10	27 contacts →
	Strong evidence “ImpactAlpha is the leading global news and data platform serving impact investing and sustainable finance practitioners.” Source: RevenueBase Database · checked Sep 28, 2026
19	Hoque Global	Strong evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	11-50	27 contacts →
	Strong evidence “As an investment group based in Dallas, TX we focus on impact impact investing.” Source: RevenueBase Database · checked Sep 28, 2026
20	Capshift	Strong evidence	West Newton, MA, United StatesHQ checked Sep 28, 2026	11-50	26 contacts →
	Strong evidence “Designed to scale, CapShift is the backbone of impact investing solutions across many of the world’s largest financial, charitable, and corporate institutions.” Source: RevenueBase Database · checked Sep 28, 2026
21	Sonen Capital LLC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “We believe that investment capital can help meet large-scale global challenges.” Source: RevenueBase Database · checked Sep 28, 2026
22	Bienville	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	25 contacts →
	Strong evidence “Bienville is an idea-centric platform investing across sectors and geographies in both public and private markets.” Source: RevenueBase Database · checked Sep 28, 2026
23	Capital III	Strong evidence	Wichita, KS, United StatesHQ checked Sep 28, 2026	501-1,000	25 contacts →
	Strong evidence “Capital is an impact investing enterprise focusing on creating Economic, Social, and Spiritual Capital in private companies.” Source: RevenueBase Database · checked Sep 28, 2026
24	Untapped Global	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	51-200	25 contacts →
	Partial evidence “On a mission to reshape profitable investing in emerging markets, Untapped Global offers profitable, data-driven investment opportunities for global investors to finance…” Source: RevenueBase Database · checked Sep 28, 2026
25	Blue Room	Indirect evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “Blue Room is a private investment company born of invention, forward thought and HOPE.” Source: RevenueBase Database · checked Sep 28, 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: impact investing platforms. 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 impact investing platforms.
Partial evidence: Its own public description names part of impact investing platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name impact investing platforms. 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 25 of 381 impact investing platforms based in the United States

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Impact investing platforms based in the United States at a glance

As of Sep 28, 2026

34.9%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

14.7%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

270

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 381 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 investing platforms, 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 the United States whose own description of what they do matches “impact investing platforms”. 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 investing platforms), 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 investing platforms, and records with no verified work email. Companies headquartered outside United States 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, 1,073 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.

Impact investing platforms by metro

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 investing platforms, 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 investing platforms are there based in the United States?

RevenueBase identified 381 impact investing platforms headquartered in the 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?

777 Partners, headquartered in Miami, tops this list with the largest team on record.

Which city has the most impact investing platforms?

New York leads with 56 headquartered companies, followed by San Francisco (28) and Washington (16).

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 1,073 verified decision-maker contacts tracked across these 381 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.