Company lists · Data refreshed September 2026
Top 25 Private equity backed companies based in Boston, United States
RevenueBase identified 250 private equity backed companies headquartered in Boston, United States as of September 2026 and tracks 9,764 professional contacts across them, including 5,255 with verified work emails. Across the United States, New York is the largest hub for this category (1,327 companies); Boston has 250.
This list covers private equity backed companies 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.
The 25 largest private equity backed companies based in Boston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,068 contacts → | ||||
Partial evidence “Founded in 1984, Bain Capital is one of the world’s leading private investment firms.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,353 contacts → | ||||
Partial evidence “HarbourVest is an independent, global private markets firm with over 43 years of experience and $161 billion assets under management as of December 31, 2025.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,025 contacts → | ||||
Strong evidence “Advent is a leading global private equity investor committed to working in partnership with management teams, entrepreneurs, and founders to help transform businesses.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 881 contacts → | ||||
Strong evidence “TA is a leading global private equity firm focused on scaling growth in profitable companies.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 513 contacts → | ||||
Partial evidence “PSG is a growth equity firm that partners with software and technology-enabled services companies to help them navigate transformational growth, capitalize on strategic…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 255 contacts → | ||||
Strong evidence “Berkshire Partners is a 100% employee-owned, multi-sector specialist investor in private and public equity, with a focus on North American-based, middle-market companies.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 236 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 211 contacts → | ||||
Strong evidence “Headquartered in Boston, with offices in San Francisco, New York, London and Hong Kong, Audax Private Equity is a leading private equity platform focused on investing across the…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 148 contacts → | ||||
Strong evidence “THL Partners is a Boston-based private equity firm investing in middle-market growth companies in three industry groups: Financial Technology & Services, Healthcare, and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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, 2026Thanks. The Data Team will review it. | |||||
| 12 | 94 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 72 contacts → | ||||
Strong evidence “BV Investment Partners is one of the oldest and most experienced sector-focused private equity firms in North America.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 68 contacts → | ||||
Strong evidence “Parthenon Capital Partners (“Parthenon” or “Parthenon Capital”) is a private equity firm that partners with and invests in management teams and their companies.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 63 contacts → | ||||
Partial evidence “Founded in 2015, Silversmith Capital Partners is a Boston-based growth equity firm with over $5 billion in capital under management.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 63 contacts → | ||||
Partial evidence “Volition Capital is a growth equity firm established in 2010 that focuses on investing in high-growth, founder-owned technology businesses across the U.S.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 61 contacts → | ||||
Partial evidence “BayPine is a private investment firm that seeks to create lasting value for the firm's investors, portfolio companies and communities in which they operate by driving innovation…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 53 contacts → | ||||
Strong evidence “Cove Hill Partners is a private equity firm focused on partnering with outstanding management teams to build market-leading technology and consumer companies.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 47 contacts → | ||||
Indirect evidence “OpenView is a venture capital firm on a mission to change the way the world works.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 45 contacts → | ||||
Strong evidence “Founded in 1988, Ampersand is a middle-market private equity firm with $3 billion of assets under management dedicated to growth-oriented investments in the healthcare sector.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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, 2026Thanks. The Data Team will review it. | |||||
| 23 | 41 contacts → | ||||
Strong evidence “Founded in 1993, New Boston is a real estate investment management firm based in Boston, MA that manages over 1.2 billion dollars in private equity capital on behalf of high net…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 38 contacts → | ||||
Indirect evidence “M33 Growth is a venture and growth stage investment firm that seeks to partner with founders and CEOs to rapidly scale their companies and break through as industry leaders.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 37 contacts → | ||||
Strong 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, 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 backed companies. 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 backed companies.
- Partial evidence
- Its own public description names part of private equity backed companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name private equity backed companies. 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 250 private equity backed companies based in Boston, United States
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Private equity backed companies based in Boston, United States at a glance
As of Sep 14, 2026Companies by employee count
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 250 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 backed companies, 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 equity backed companies”. 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 backed companies), 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 backed companies, 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, 5,255 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 equity backed companies by metro in the United States
- Private equity backed companies in New York1327
- Private equity backed companies in Chicago406
- Private equity backed companies in Dallas392
- Private equity backed companies in Los Angeles280
- Private equity backed companies in Houston261
- Private equity backed companies in San Francisco255
- Private equity backed companies in Miami246
- Private equity backed companies in Austin223
- Private equity backed companies in Atlanta188
- Private equity backed companies in Denver145
- Private equity backed companies in Charlotte105
- Private equity backed companies in Washington89
- Private equity backed companies in San Diego81
- Private equity backed companies in Nashville76
- Private equity backed companies in Tampa71
- Private equity backed companies in Newport Beach69
- Private equity backed companies in Philadelphia62
- Private equity backed companies in Seattle61
- Private equity backed companies in Salt Lake City57
- Private equity backed companies in Beverly Hills54
- Private equity backed companies in Minneapolis54
- Private equity backed companies in Birmingham51
- Private equity backed companies in Cleveland51
- Private equity backed companies in New York City51
- Private equity backed companies in Scottsdale49
- Private equity backed companies in Boca Raton46
- Private equity backed companies in Phoenix45
- Private equity backed companies in Stamford43
- Private equity backed companies in Santa Monica42
- Private equity backed companies in Menlo Park41
- Private equity backed companies in Orlando40
- Private equity backed companies in West Palm Beach40
- Private equity backed companies in Fort Lauderdale39
- Private equity backed companies in Las Vegas39
- Private equity backed companies in Palo Alto39
- Private equity backed companies in Cincinnati34
- Private equity backed companies in Fort Worth34
- Private equity backed companies in Irvine34
- Private equity backed companies in Raleigh34
- Private equity backed companies in Pittsburgh33
- Private equity backed companies in Columbus31
- Private equity backed companies in Miami Beach31
- Private equity backed companies in Portland31
- Private equity backed companies in Indianapolis30
- Private equity backed companies in Omaha27
- Private equity backed companies in San Antonio27
- Private equity backed companies in Westport27
- Private equity backed companies in Charleston26
- Private equity backed companies in Coral Gables26
- Private equity backed companies in Kansas City26
- Private equity backed companies in Bethesda25
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 backed companies, 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 backed companies are there based in Boston, United States?
RevenueBase identified 250 private equity backed companies 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 in the United States has the most private equity backed companies?
New York leads the United States with 1,327 headquartered companies, followed by Chicago (406) and Dallas (392). Boston has 250.
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 5,255 verified decision-maker contacts tracked across these 250 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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Private equity backed companies by geography
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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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