Company lists · Data refreshed September 2026

Top 25 Private investment firms based in Boston, United States

Name: Private investment firms based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 38 companies tracked

RevenueBase identified 38 private investment firms headquartered in Boston, United States as of September 2026 and tracks 4,313 professional contacts across them, including 2,283 with verified work emails. New York is the largest hub.

This list covers private investment firms headquartered in Boston, 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 14, 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 14, 2026 86% judged on-target in blind review

38Companies

4,313Contacts tracked

2,283Verified emails

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The 25 largest private investment firms based in Boston, United States

Ranked by team size

Top 25 of 38 private investment firms based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to private 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	Bain Capital	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1,001-5,000	2,068 contacts →
	Strong evidence “Founded in 1984, Bain Capital is one of the world’s leading private investment firms.” Source: RevenueBase Database · checked Sep 14, 2026
2	TA Associates	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	201-500	881 contacts →
	Partial evidence “TA is a leading global private equity firm focused on scaling growth in profitable companies.” Source: RevenueBase Database · checked Sep 14, 2026
3	Summit Partners	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	51-200	465 contacts →
	Partial evidence “Summit Partners is a global alternative investment firm with capital dedicated to growth equity, fixed income, and public equity opportunities.” Source: RevenueBase Database · checked Sep 14, 2026
4	Charlesbank Capital Partners	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	51-200	236 contacts →
	Strong evidence “Based in Boston and New York City, Charlesbank is a leading middle-market private investment firm with $21.5 billion in assets under management as of 3/31/2026.” Source: RevenueBase Database · checked Sep 14, 2026
5	Great Hill Partners	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	51-200	110 contacts →
	Strong evidence “Founded in 1998, Great Hill Partners is a private equity firm targeting investments of $100 million to $750 million in high-growth companies across the software, financial…” Source: RevenueBase Database · checked Sep 14, 2026
6	Spectrum Equity	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	51-200	94 contacts →
	Indirect evidence “Founded in 1994, Spectrum Equity is a leading growth equity firm with offices in Boston, San Francisco, and London.” Source: RevenueBase Database · checked Sep 14, 2026
7	Highvista Strategies	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	51-200	91 contacts →
	Indirect evidence “HighVista Strategies LLC is an employee-owned alternative asset manager that brings investors alpha opportunities in structurally inefficient markets.” Source: RevenueBase Database · checked Sep 14, 2026
8	Copley Equity Partners LLC	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	42 contacts →
	Strong evidence “Copley Equity Partners is a private investment firm based in Boston, MA, and Denver, CO.” Source: RevenueBase Database · checked Sep 14, 2026
9	Solamere Capital, LLC	Partial evidence	Boston, United StatesHQ checked Sep 14, 2026	11-50	37 contacts →
	Partial evidence “Founded in 2008, Solamere is a multi-strategy private equity firm with offices in Boston and New York City.” Source: RevenueBase Database · checked Sep 14, 2026
10	Conjoin Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	201-500	36 contacts →
	Partial evidence “The ConJoin Group aligns with Venture Capital and Private Equity firms by investing our own capital,$250M in committed funds, and delivering a suite of services designed to…” Source: RevenueBase Database · checked Sep 14, 2026
11	Raptor Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	27 contacts →
	Partial evidence “At The Raptor Group, we source and invest in companies across various stages and asset classes, ranging from early stage to both private and public equity to funds.” Source: RevenueBase Database · checked Sep 14, 2026
12	Glouston Capital Partners	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	25 contacts →
	Strong evidence “Glouston Capital Partners is a 100% employee-owned private equity investment specialist with more than 30 years of dedicated experience and over $3.4 billion in committed capital…” Source: RevenueBase Database · checked Sep 14, 2026
13	GFI Partners	Strong evidence	Boston, United StatesHQ checked Sep 14, 2026	11-50	25 contacts →
	Strong evidence “GFI Partners is a diversified investment firm specializing in real estate development, private equity, and venture capital.” Source: RevenueBase Database · checked Sep 14, 2026
14	BPEA	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	23 contacts →
	Partial evidence “Private equity firm located in Boston, MA.” Source: RevenueBase Database · checked Sep 14, 2026
15	Fifth Down Capital	Strong evidence	Boston, United StatesHQ checked Sep 14, 2026	11-50	23 contacts →
	Strong evidence “Fifth Down Capital is an investment firm that invests in private companies and funds.” Source: RevenueBase Database · checked Sep 14, 2026
16	Highfields Capital	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	16 contacts →
	Strong evidence “Highfields Capital Management is a value-oriented investment management firm which manages private investment funds for endowments, charitable and philanthropic foundations…” Source: RevenueBase Database · checked Sep 14, 2026
17	Archerman Capital	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	11-50	11 contacts →
	Indirect evidence “Archerman Capital™ is a global growth equity investor with $1 billion AUM that focuses on growth-stage companies in AI, data infra, cybersecurity, etc.” Source: RevenueBase Database · checked Sep 14, 2026
18	KSV Global	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1-10	10 contacts →
	Partial evidence “KSV Global is a Boston-based investment firm that takes a differentiated approach to growth equity investments in the United States, Europe, and Asia.” Source: RevenueBase Database · checked Sep 14, 2026
19	Boardwalk	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1-10	10 contacts →
	Partial evidence “Boardwalk is a private firm that offers liquidity to small business owners who may also seek transition of day-to-day management.” Source: RevenueBase Database · checked Sep 14, 2026
20	Cohere Capital	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1-10	9 contacts →
	Partial evidence “Cohere Capital is a growth focused private equity firm that invests in leading middle-market businesses.” Source: RevenueBase Database · checked Sep 14, 2026
21	Lincoln Peak Capital	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1-10	8 contacts →
	Indirect evidence “Founded in 2008, Lincoln Peak Capital is a long-term, supportive equity partner to entrepreneurial management teams of high-quality asset management firms.” Source: RevenueBase Database · checked Sep 14, 2026
22	Spinnaker Capital LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1-10	7 contacts →
	Partial evidence “Since 1997, Boston-based Spinnaker Capital LLC has been investing in private companies, real assets, and a variety of funds on behalf of a select number of high net-worth families.” Source: RevenueBase Database · checked Sep 14, 2026
23	Everlane Equity Partners	Strong evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1-10	6 contacts →
	Strong evidence “Everlane Equity Partners is a private capital provider focused on equity investments in high-quality companies that are well-positioned for future growth.” Source: RevenueBase Database · checked Sep 14, 2026
24	Fourbridge Partners	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1-10	5 contacts →
	Indirect evidence “FourBridge Partners creates portfolios of select hard-to-access venture capital funds and the most sought after hard-to-find emerging managers.” Source: RevenueBase Database · checked Sep 14, 2026
25	Winthrop Square Capital	Indirect evidence	Boston, MA, United StatesHQ checked Sep 14, 2026	1-10	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 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: private 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 private investment firms.
Partial evidence: Its own public description names part of private investment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name private 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 25 of 38 private investment firms based in Boston, United States

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Private investment firms based in Boston, United States at a glance

As of Sep 14, 2026

52.9%Verified-email coverage

113.5Average contacts per company

11-50Median size (employees)

628.9%Largest-city concentration · New York

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 38 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 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 Boston, United States whose own description of what they do matches “private 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 private 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 private investment firms, and records with no verified work email. Companies headquartered outside Boston 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, 2,283 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 14, 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 investment firms by metro in the United States

Private investment firms in New York239
Private investment firms in San Francisco62
Private investment firms in Chicago61
Private investment firms in Dallas49
Private investment firms in Los Angeles48
Private investment firms in Boston38
Private investment firms in Miami33
Private investment firms in Austin31
Private investment firms in Houston31

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 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 private investment firms are there based in Boston, United States?

RevenueBase identified 38 private investment firms headquartered in Boston, 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?

Bain Capital, headquartered in Boston, tops this list with the largest team on record.

Which city has the most private investment firms?

New York leads with 239 headquartered companies, followed by San Francisco (62) and Chicago (61).

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 2,283 verified decision-maker contacts tracked across these 38 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 14, 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.