Company lists · Data refreshed September 2026
Top 25 Infrastructure equity firms based in San Francisco, United States
RevenueBase identified 39 infrastructure equity firms headquartered in San Francisco, United States as of September 2026 and tracks 1,097 professional contacts across them, including 701 with verified work emails. New York is the largest hub.
This list covers infrastructure equity firms headquartered in San Francisco, 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 20, 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 infrastructure equity firms based in San Francisco, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 273 contacts → | ||||
Partial evidence “SB Energy is enabling the new AI economy, by developing, building, and owning its critical physical infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 248 contacts → | ||||
Partial evidence “Founded in 2014, Generate builds, finances, owns and operates sustainable infrastructure to deliver affordable and reliable resource solutions for companies, governments, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 96 contacts → | ||||
Partial evidence “Percheron Capital is the largest private equity firm focused on essential services – the businesses that keep America running.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 84 contacts → | ||||
Partial evidence “Genstar Capital is a leading middle-market private equity firm, investing in high quality companies for over 30 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 56 contacts → | ||||
Indirect evidence “For half a century, ATEL Capital Group has financed the companies transforming our economy-deploying capital to more than businesses globally.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 44 contacts → | ||||
Partial evidence “Architect Capital is a San Francisco-based multi-strategy investment firm specialized in building novel financial infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 33 contacts → | ||||
Partial evidence “Main Post Partners is a private equity investment firm focused on investing $50 – $250+ million in high-growth companies across the consumer value chain.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 30 contacts → | ||||
Partial evidence “BluePath is a leading financier of sustainable infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 29 contacts → | ||||
Indirect evidence “Focused exclusively on venture capital opportunities in "technology for the built world," Brick & Mortar Ventures identifies, backs, and enables emerging companies developing…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 28 contacts → | ||||
Partial evidence “Housatonic Partners is a private equity firm investing in high growth, recurring revenue service companies operating in a number of industries including healthcare, software, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 25 contacts → | ||||
Indirect evidence “The defining renewable energy focused investment management firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 21 contacts → | ||||
Partial evidence “ERA Partners LLC is an infrastructure asset manager employing a value-add strategy in asset-rich opportunities that provide essential services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 20 contacts → | ||||
Indirect evidence “Activate Capital is a growth-stage venture capital firm investing in the sustainable, resilient transformation of the global economy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 14 contacts → | ||||
Partial evidence “Segue Sustainable Infrastructure is a principal investment firm providing development capital to renewable energy projects and the infrastructure enabling them.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 contacts → | ||||
Indirect evidence “Ponte Partners is an investment management firm headquartered in San Francisco, California, which collaborates with institutional and private investors, fund managers and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 12 contacts → | ||||
Partial evidence “P4G Capital Management is a lower middle market, operationally focused private equity firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 9 contacts → | ||||
Partial evidence “Mile Rock Capital is a value-oriented real estate private equity firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 contacts → | ||||
Partial evidence “Next Horizon Capital is a middle-market, growth-oriented private equity firm that focuses on investing in Business Services, Technology and Information sectors.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 6 contacts → | ||||
Indirect evidence “We provide private capital to distressed companies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Partial evidence “Homecoming Capital seeks to generate attractive returns by investing in zero-emission infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Partial evidence “Founded in 1994, and based in San Francisco, CA and Portland, OR, Hanover Partners is a private equity firm dedicated to investing in, acquiring, and partnering with the…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Partial evidence “Sleeping Bear Capital is a founder-first private equity firm that seeks to acquire controlling interests in business unit spinouts and venture-backed technology, e-commerce and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Indirect evidence “Lacuna Sustainable Investments is a Marin County, California based investment firm that provides people, projects, and portfolios with capital to further the demand for renewable…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Partial evidence “Clean Energy Capital is an investment bank that advises water, energy and infrastructure clients with a core focus on project finance and public-private partnerships.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Partial evidence “Vopne Capital is a San Francisco-based private investment firm focused on acquisitions, recapitalizations and equity financings of lower middle market companies.” Source: RevenueBase Database · checked Sep 20, 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: infrastructure equity 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 infrastructure equity firms.
- Partial evidence
- Its own public description names part of infrastructure equity firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name infrastructure equity 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 39 infrastructure equity firms based in San Francisco, United States
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Infrastructure equity firms based in San Francisco, United States at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 39 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 infrastructure 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 San Francisco, United States whose own description of what they do matches “infrastructure 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 infrastructure 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 infrastructure equity firms, and records with no verified work email. Companies headquartered outside San Francisco 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, 701 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 20, 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.
Infrastructure equity firms by metro in the United States
- Infrastructure equity firms in New York214
- Infrastructure equity firms in Houston72
- Infrastructure equity firms in Chicago68
- Infrastructure equity firms in Dallas57
- Infrastructure equity firms in Miami47
- Infrastructure equity firms in Boston42
- Infrastructure equity firms in Los Angeles42
- Infrastructure equity firms in San Francisco39
- Infrastructure equity firms in Austin30
- Infrastructure equity firms in Atlanta29
- Infrastructure equity firms in Denver28
- Infrastructure equity firms in Washington28
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 infrastructure 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 infrastructure equity firms are there based in San Francisco, United States?
RevenueBase identified 39 infrastructure equity firms headquartered in San Francisco, 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?
SB Energy, headquartered in San Francisco, tops this list with the largest team on record.
Which city has the most infrastructure equity firms?
New York leads with 214 headquartered companies, followed by Houston (72) and Chicago (68).
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 701 verified decision-maker contacts tracked across these 39 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 20, 2026.
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Infrastructure equity firms by geography
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- Infrastructure equity firms based in Houston, United States
- Infrastructure equity firms based in Los Angeles, United States
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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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