Company lists · Data refreshed September 2026

Top 25 Lead generation software companies based in San Francisco, United States

Name: Lead generation software companies based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 127 companies tracked

RevenueBase identified 127 lead generation software companies headquartered in San Francisco, United States as of September 2026 and tracks 3,008 professional contacts across them, including 889 with verified work emails. New York is the largest hub.

This list covers lead generation software 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. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

127Companies

3,008Contacts tracked

889Verified emails

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The 25 largest lead generation software companies based in San Francisco, United States

Ranked by team size

Top 25 of 127 lead generation software companies based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names lead generation software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	apollo.ioIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	501-1,000	843
	“Apollo.io is the AI-powered end-to-end go-to-market platform that empowers sales, marketing, and revenue teams to find prospects, engage customers, and close deals with…” Source: company website · checked Sep 4, 2026
2	ArtisanIndirect evidence	San Francisco, United StatesHQ checked Sep 4, 2026	51-200	211
	“Artisan builds AI employees.” Source: company website · checked Sep 4, 2026
3	WarmlyIndirect evidence	San Francisco, United StatesHQ checked Sep 4, 2026	51-200	138
	“Warmly makes your marketing effective by automatically identifying your ideal customers, monitoring their buying intent in real time, and engaging through the right channel at the…” Source: company website · checked Sep 4, 2026
4	DatabeesPartial evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	201-500	117
	“DataBees empowers sales and marketing teams all around the world by providing high quality, verified lead data.” Source: company website · checked Sep 4, 2026
5	LeadiqIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	51-200	111
	“Build pipeline with confidence.” Source: company website · checked Sep 4, 2026
6	Green Leads, LLCStrong evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	51-200	100
	“Green Leads provides Pipeline Generation services to the Tech & SaaS industry, globally.” Source: company website · checked Sep 4, 2026
7	UsergemsIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	51-200	89
	“The Brain Behind Your Go-to-Market UserGems is the AI command center for GTM teams.” Source: company website · checked Sep 4, 2026
8	LandbaseIndirect evidence	San Francisco, United StatesHQ checked Sep 4, 2026	11-50	62
	“Landbase is the agentic AI company that helps you find your next customer.” Source: company website · checked Sep 4, 2026
9	Kionin INCPartial evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	59
	“Kionin is a GTM engineering studio for early-stage B2B software companies.” Source: company website · checked Sep 4, 2026
10	ocean.ioIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	51-200	58
	“B2B GTM teams use Ocean.io's prospecting data platform to find accounts and contacts no one else can.” Source: company website · checked Sep 4, 2026
11	AISDRIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	45
	“The AI SDR that grounds the hype in results AiSDR is an AI SaaS platform that runs deeply researched outreach on autopilot.” Source: company website · checked Sep 4, 2026
12	ChatfuelIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	44
	“Chatfuel is the #1 platform for businesses that sell and grow through social media.” Source: company website · checked Sep 4, 2026
13	ResquaredIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	40
	“Resquared is a local business prospecting platform that streamlines the prospecting process with data on every local business built into a powerful marketing automation platform.” Source: company website · checked Sep 4, 2026
14	thriwin.ioIndirect evidence	San Francisco, United StatesHQ checked Sep 4, 2026	11-50	37
	“Stop Wasting Time Finding Sales Talent, Focus on Building Your Startup with AI-Sales Agents We've been there, and we know the struggle.” Source: company website · checked Sep 4, 2026
15	CIROIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	33
	“Ciro is the AI-powered GTM engine for revenue teams.” Source: company website · checked Sep 4, 2026
16	DealsignalIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	51-200	31
	“DealSignal provides fresh, accurate, verified B2B data that helps sales & marketing teams maximize their efficiency, performance and results.” Source: company website · checked Sep 4, 2026
17	RevenoidIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	31
	“In today's rush to increase outreach velocity, are your reps orchestrating authentic, impactful connections or just firing off spam-triggering emails?” Source: company website · checked Sep 4, 2026
18	Sally AI Sales RepresentativePartial evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	27
	“Powering B2B growth with outbound systems that attract mid-size and enterprise-qualified leads.” Source: company website · checked Sep 4, 2026
19	GrowbotsIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	26
	“Growbots has been at the forefront of outbound sales since 2014.” Source: company website · checked Sep 4, 2026
20	MailmunchStrong evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	24
	“Mailmunch is the one-stop lead generation and marketing platform that allows you to grow your business with lead capture and email automation tools to reach your audience with a…” Source: company website · checked Sep 4, 2026
21	OrigamiPartial evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	21
	“Find & connect with your perfect leads by prompting in Origami.” Source: company website · checked Sep 4, 2026
22	VIRIOPartial evidence	San Francisco, United StatesHQ checked Sep 4, 2026	11-50	18
	“Everyone wants to generate more leads for their B2B business, and we cracked the code.” Source: company website · checked Sep 4, 2026
23	Vendisys Generate More Pipeline And Revenue At ScaleIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	17
	“Generate more pipeline and revenue at scale and ONLY pay for results.” Source: company website · checked Sep 4, 2026
24	Leadbay YC F25Partial evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	1-10	14
	“Leadbay qualifies millions of Data-Signal-Scarce leads that couldn't be found before.” Source: company website · checked Sep 4, 2026
25	Celebrity AgentStrong evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	11-50	12
	“We provide real estate agents with a AI-driven, lead generation and conversion tools that maximize commissions earned.” Source: company website · checked Sep 4, 2026

Showing 25 of 127 lead generation software companies based in San Francisco, United States

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Lead generation software companies based in San Francisco, United States at a glance

As of Sep 4, 2026

1-10Median size (employees)

New YorkLargest hub · 165 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 127 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 lead generation software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “lead generation software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among lead generation software companies, 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 an evidence 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, 889 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 4, 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.

Lead generation software companies by metro in the United States

Lead generation software companies in New York165
Lead generation software companies in San Francisco127
Lead generation software companies in Los Angeles78
Lead generation software companies in Miami72
Lead generation software companies in Sheridan71
Lead generation software companies in Austin68
Lead generation software companies in San Diego56
Lead generation software companies in Houston52
Lead generation software companies in Las Vegas50
Lead generation software companies in Dallas48
Lead generation software companies in Atlanta43
Lead generation software companies in Chicago42
Lead generation software companies in Boston39
Lead generation software companies in Denver39
Lead generation software companies in Orlando36
Lead generation software companies in Wilmington34
Lead generation software companies in Phoenix33
Lead generation software companies in Tampa33
Lead generation software companies in Charlotte27

Frequently asked

How many lead generation software companies are there based in San Francisco, United States?

RevenueBase identified 127 lead generation software companies 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?

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

Which city has the most lead generation software companies?

New York leads with 165 headquartered companies, followed by San Francisco (127) and Los Angeles (78).

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 889 verified decision-maker contacts tracked across these 127 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 4, 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.