Company lists · Data refreshed September 2026

Top 14 B2B marketplace platforms based in San Francisco, United States

RevenueBase identified 30 company matches for B2B marketplace platforms associated with San Francisco, United States as of September 2026 and tracks 1,216 professional contacts across them, including 639 with verified work emails. Across the United States, New York is the largest hub for this category (78 companies); San Francisco has 30.

This list covers company matches for B2B marketplace platforms 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
30Companies
1,216Contacts tracked
639Verified emails
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The 14 largest B2B marketplace platforms based in San Francisco, United States

Ranked by team size
Top 14 of 30 company matches for B2B marketplace platforms 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, 2026501-1,000924 contacts →

Exact match

“AppDirect is a San Francisco-based B2B subscription commerce platform company that brings together technology providers, advisors, and businesses to simplify how they buy, sell…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5049 contacts →

Exact match

“Eze is a B2B wholesale marketplace for smartphones, laptops, tablets, and other electronics with brands such as Apple, Samsung, Lenovo, HP, and more.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202651-20032 contacts →

Exact match

“Trellis Energy, headquartered in San Francisco, CA, provides the industry’s first SaaS B2B marketplace for the entire natural gas supply chain.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5024 contacts →

Exact match

“At Rejigg, we are on a mission to simplify buying and selling small businesses.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5019 contacts →

Exact match

“Crstl is the agentic business network for the real economy.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“Proven allows firms to build custom supplier marketplaces of trusted vendors.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5014 contacts →

Exact match

“NachoNacho is a Marketplace for SaaS/AI & Services: For Businesses (Buyers):(a) SaaS Marketplace: get massive discounts (up to 30% lifetime) on ~900 major SaaS products.$5.6…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-5010 contacts →

Exact match

“A trade show lasts three days.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-507 contacts →

Exact match

“Kountable was the predecessor to Klear®, a B2B platform that helps growing companies solve the working capital and execution challenges that come with winning more business.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-505 contacts →

Exact match

“OrderCircle is elegant e-commerce for B2B commerce - we're bringing the same all-digital experience that B2C shoppers expect to wholesale transactions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 20261-103 contacts →

Exact match

“TravelExchange is a new comprehensive B2B marketplace for the your guaranteed departures as well as an advanced booking engine.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202611-503 contacts →

Exact match

“Builtfirst is a partner marketplace platform.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202651-2002 contacts →

Exact match

“Tundra is the modern wholesale marketplace that allows buyers and suppliers to transact online with no fees or markups.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 20261-101 contacts →

Exact match

“Flipmine is a revolutionary new platform that helps small volume e-commerce resellers source products to sell online.”

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

Showing 14 of 30 B2B marketplace platforms based in San Francisco, United States

See the full list, filter by size, metro and specialty, and access 639 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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B2B marketplace platforms based in San Francisco, United States at a glance

As of Sep 27, 2026
52.5%Verified-email coverage
40.5Average contacts per company
11-50Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
16
51-200
2
501-1,000
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 30 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 “B2B marketplace platforms” 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 639 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 “B2B marketplace platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B marketplace platforms are there based in San Francisco, United States?

RevenueBase identified 30 company matches for B2B marketplace platforms 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?

Appdirect 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 B2B marketplace platforms?

New York leads the United States with 78 company records, followed by Los Angeles (34) and Miami (31). San Francisco has 30.

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 639 professional contacts with verified work emails tracked across these 30 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.