Company lists · Data verified August 2026

Top 8 B2B contact database companies based in San Francisco, United States

Name: B2B contact database companies based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 26 companies tracked

There are 26 B2B contact database companies headquartered in San Francisco, United States (RevenueBase, August 2026). RevenueBase tracks 491 professional contacts across them, including 63 with verified work emails and 62 with mobile numbers. New York is the largest hub.

This list covers B2B contact database companies 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. Data current as of August 28, 2026.

26Companies

491Contacts tracked

63Verified emails

62Mobile numbers

Unlock all 26 companies Free account · no credit card · 2 minutes

The 8 largest B2B contact database companies based in San Francisco, United States

Ranked by team size

Top 8 of 26 B2B contact database companies based in San Francisco, United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Leadiq	San Francisco, CA	51-200	111	34
2	Kat-I Research	San Francisco, CA	51-200	70	1
	RevenueBasePublisher of this directory	Boston, MA	n/a	n/a	Try free
3	AI ARK	San Francisco	11-50	34	4
4	Dealsignal	San Francisco, CA	51-200	31	6
5	Orbital	San Francisco, CA	11-50	29	10
6	Aeroleads	San Francisco	11-50	24	3
7	Arrakis	San Francisco	1-10	5	3
8	Contora	San Francisco, CA	1-10	5	2

Showing 8 of 26 B2B contact database companies based in San Francisco, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 63 reachable decision-makers.

Free account · no credit card

See all 26 companies

B2B contact database companies based in San Francisco, United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 81 HQs

62Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

501-1,000

B2B contact database companies by metro in the United States

Metro	Companies
B2B contact database companies in New York	81
B2B contact database companies in Wilmington	31
B2B contact database companies in Los Angeles	29
B2B contact database companies in San Francisco	26
B2B contact database companies in Sheridan	23
B2B contact database companies in Plano	21
B2B contact database companies in Houston	19

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “B2B contact database companies”, with match quality audited by blind human judging, and headquartered in San Francisco, United States.
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: Contact records re-verify on a rolling cadence; 2 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many B2B contact database companies are there based in San Francisco, United States?

There are 26 B2B contact database companies headquartered in San Francisco, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Leadiq, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most B2B contact database companies?

New York leads with 81 headquartered companies, followed by Wilmington (31) and Los Angeles (29).

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 63 verified decision-maker contacts tracked across these 26 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 26 B2B contact database companies based in San Francisco, United States. Start with a free account, no credit card.

Get the full list

Related lists

B2B contact database companies by geography

Browse the directory

Browse: Companies home · B2B contact database companies in United States · All United States lists · All B2B contact database companies lists · New lists

About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.