Company lists · Data refreshed September 2026

Top 25 Api and platform venture capital companies based in San Francisco, United States

RevenueBase identified 305 company matches for api and platform venture capital companies associated with San Francisco, United States as of September 2026 and tracks 5,162 professional contacts across them, including 1,634 with verified work emails. Across the United States, New York is the largest hub for this category (312 companies); San Francisco follows with 305.

This list covers company matches for api and platform venture capital companies associated with San Francisco, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built
305Companies
5,162Contacts tracked
1,634Verified emails
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The 25 largest api and platform venture capital companies based in San Francisco, United States

Ranked by team size
Top 25 of 305 company matches for api and platform venture capital companies based in San Francisco, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 2026n/a247 contacts →

Exact match

“NextGen Venture Partners works with over 1,800 Venture Partners to invest $1 million in seed stage companies and $2 million to $10 million in companies with more than $10 million…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202651-200173 contacts →

Exact match

“InvestorFlow is the leading AI-powered platform for capital formation, deployment and investor engagement in the private markets.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202651-200173 contacts →

Exact match

“BCV helps founders build iconic businesses that transform the way we live and work.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202651-200166 contacts →

Exact match

“Headline is a venture capital firm with teams on the ground in 8 cities around the world.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-50139 contacts →

Exact match

“M12 is Microsoft’s corporate venture capital fund.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-50116 contacts →

Exact match

“Nexus Venture Partners is a venture capital firm that supports extraordinary founders in building product-first companies.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202651-200105 contacts →

Exact match

“Human Capital is a multi-stage venture capital firm.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-50104 contacts →

Exact match

“Canaan is an early stage venture capital firm that invests in entrepreneurs with visionary ideas.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-50100 contacts →

Exact match

“WI Harper Group is a pioneering venture capital firm with over three decades of experience investing in transformative companies that shape the future.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5094 contacts →

Exact match

“Blockchain Capital was founded in 2013 with the mission of helping entrepreneurs build world-class companies and projects based on blockchain technology – providing founders with…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5093 contacts →

Exact match

“Since Redpoint Ventures has partnered with visionary founders to create new markets and redefine existing ones.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5087 contacts →

Exact match

“SignalFire is the first venture capital firm built like a technology company to better solve for the needs of founders.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 2026n/a83 contacts →

Exact match

“We invest in founders who are reshaping outdated industries.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5081 contacts →

Exact match

“SemperVirens is a San Francisco based venture capital firm investing in AI-native companies transforming the largest and most complex service markets in the economy: healthcare…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5076 contacts →

Exact match

“From seed through growth, Salesforce Ventures provides the most enterprising founders with the patient capital, coveted community, and unique access to the resources they need to…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 2026n/a73 contacts →

Exact match

“Mangusta is a venture capital and growth equity firm, with its origins in Italy and a global reach.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5069 contacts →

Exact match

“CRV is a venture capital firm that invests in early-stage tech startups.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5062 contacts →

Exact match

“Founded in Industry Ventures has pioneered flexible capital solutions over the past 25+ years across the life cycle of venture – from seed- and early-stage investing to late-stage…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 2026n/a62 contacts →

Exact match

“World-class operators investing in products we love.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5049 contacts →

Exact match

“Blumberg Capital is an early and growth stage venture capital firm that partners with visionary entrepreneurs to build successful technology companies that empower individuals…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5049 contacts →

Exact match

“Northgate Capital, founded in manages $5bn in venture capital and private equity.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5048 contacts →

Exact match

“Cota Capital is an early-stage investment firm that builds and invests in technology companies addressing “Net New” challenges in the enterprise.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5048 contacts →

Exact match

“Icecream Labs is a venture studio focused on launching AI-native companies that solve practical, high-leverage problems in enterprise and B2B environments.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5047 contacts →

Exact match

“Crosslink, founded in 1989, is a premier early-stage venture capital firm with over $4.2B in assets.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202651-20047 contacts →

Exact match

“Pinegrove is a venture investment platform designed to deliver tailored solutions for fund managers, founders, and limited partners in the venture capital ecosystem.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 305 api and platform venture capital companies based in San Francisco, United States

See the full list, filter by size, metro and specialty, and access 1,634 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Api and platform venture capital companies based in San Francisco, United States at a glance

As of Sep 27, 2026
31.7%Verified-email coverage
16.9Average contacts per company
1-10Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
201
11-50
92
51-200
7
201-500
1
1,001-5,000
2
5,001-10,000
1
10001+
1

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 305 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with San Francisco, United States whose business descriptions match “api and platform venture capital companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,634 professional contacts with verified work emails across the full matched dataset. 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 27, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “api and platform venture capital companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many api and platform venture capital companies are there based in San Francisco, United States?

RevenueBase identified 305 company matches for api and platform venture capital companies associated with San Francisco, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Nextgen Venture Partners tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most api and platform venture capital companies?

New York leads the United States with 312 company records, followed by San Francisco (305) and Palo Alto (94).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,634 professional contacts with verified work emails tracked across these 305 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 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 SmartSearch, 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.