Company lists · Data refreshed September 2026

Top 25 AI sdr platforms based in San Francisco, United States

Name: AI sdr platforms 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 2, 2026 205 companies tracked

RevenueBase identified 205 AI sdr platforms headquartered in San Francisco, United States as of September 2026 and tracks 4,089 professional contacts across them, including 1,193 with verified work emails and 898 with mobile numbers. San Francisco is the largest hub.

This list covers AI sdr platforms 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 2, 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 Match evidence on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

205Companies

4,089Contacts tracked

1,193Verified emails

898Mobile numbers

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The 25 largest AI sdr platforms based in San Francisco, United States

Ranked by team size

Top 25 of 205 AI sdr platforms based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 2, 2026. Evidence rates how directly each company's own description names AI sdr platforms: 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.ioStrong evidence	San Francisco, CA, United States	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 2, 2026
2	NOOKSIndirect evidence	San Francisco, CA, United States	51-200	317
	“Nooks is the Agent Workspace for intelligent outbound.” Source: company website · checked Sep 2, 2026
3	GushworkPartial evidence	San Francisco, CA, United States	51-200	246
	“Gushwork builds complex AI marketing agents to help small and medium businesses get inbound leads from AI search engines like Gemini, ChatGPT, Claude and Perplexity” Source: company website · checked Sep 2, 2026
4	ArtisanPartial evidence	San Francisco, United States	51-200	211
	“Artisan builds AI employees.” Source: company website · checked Sep 2, 2026
5	LeadiqIndirect evidence	San Francisco, CA, United States	51-200	111
	“Build pipeline with confidence.” Source: company website · checked Sep 2, 2026
6	HockeystackIndirect evidence	San Francisco, CA, United States	51-200	95
	“HockeyStack enables marketing teams to drive pipeline efficiently to close deals faster with modern attribution, holistic buyer journeys, and account insights.” Source: company website · checked Sep 2, 2026
7	UsergemsPartial evidence	San Francisco, CA, United States	51-200	89
	“The Brain Behind Your Go-to-Market UserGems is the AI command center for GTM teams.” Source: company website · checked Sep 2, 2026
8	Mixmax AIIndirect evidence	San Francisco, CA, United States	51-200	78
	“Mixmax tells sellers exactly what to do next and helps them do it, so they stay focused, fast, and in control.” Source: company website · checked Sep 2, 2026
9	1mindPartial evidence	San Francisco, CA, United States	51-200	65
	“1mind is a platform that deploys GTM Superhumans for revenue teams so that Every1 Wins, your customers and buyers, your team, and your business.” Source: company website · checked Sep 2, 2026
10	LandbasePartial evidence	San Francisco, United States	11-50	62
	“Landbase is the agentic AI company that helps you find your next customer.” Source: company website · checked Sep 2, 2026
11	Throxy YC P25Indirect evidence	San Francisco, CA, United States	11-50	56
	“throxy designs and executes end-to-end outbound sales systems for companies selling into traditional industries.” Source: company website · checked Sep 2, 2026
12	ChatfuelPartial evidence	San Francisco, CA, United States	11-50	44
	“Chatfuel is the #1 platform for businesses that sell and grow through social media.” Source: company website · checked Sep 2, 2026
13	Gabriel AIStrong evidence	San Francisco, CA, United States	11-50	44
	“Gabriel AI is an AI-powered SaaS platform helping companies connect with customers at scale through automated voice calls and voicemails.” Source: company website · checked Sep 2, 2026
14	Demand INCPartial evidence	San Francisco, CA, United States	51-200	43
	“We're a human-driven AI-enabled sales development team recommended by 100+ VCs, 200+ leading startups 🦄, dozens of professional sports teams, and iconic tech companies, we book…” Source: company website · checked Sep 2, 2026
15	spiky.aiIndirect evidence	San Francisco, CA, United States	51-200	40
	“Identify winning behaviors, execute them in real time, and scale it across the team.” Source: company website · checked Sep 2, 2026
16	thriwin.ioPartial evidence	San Francisco, United States	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 2, 2026
17	CIROPartial evidence	San Francisco, CA, United States	11-50	33
	“Ciro is the AI-powered GTM engine for revenue teams.” Source: company website · checked Sep 2, 2026
18	RevenoidIndirect evidence	San Francisco, CA, United States	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 2, 2026
19	GrowbotsIndirect evidence	San Francisco, CA, United States	11-50	26
	“Growbots has been at the forefront of outbound sales since 2014.” Source: company website · checked Sep 2, 2026
20	SalesfinityStrong evidence	San Francisco, CA, United States	11-50	23
	“Salesfinity is the AI sales platform that powers outbound for 300+ revenue teams.” Source: company website · checked Sep 2, 2026
21	Oneai Acq. By MndyPartial evidence	San Francisco, United States	11-50	20
	“OneAI is the platform for trusted, scalable phone communication.” Source: company website · checked Sep 2, 2026
22	VIRIOIndirect evidence	San Francisco, United States	11-50	18
	“Everyone wants to generate more leads for their B2B business, and we cracked the code.” Source: company website · checked Sep 2, 2026
23	PrimerolePartial evidence	San Francisco, CA, United States	11-50	18
	“PrimeRole is a cutting-edge B2B Sales Intelligence platform designed to revolutionize the way businesses approach sales, marketing, and customer engagement.” Source: company website · checked Sep 2, 2026
24	ToplynePartial evidence	San Francisco, CA, United States	11-50	18
	“Toplyne's AI learns from your first-party customer data to generate audiences that convert - with ads, in-app nudges, email, sales, and more.” Source: company website · checked Sep 2, 2026
25	Vendisys Generate More Pipeline And Revenue At ScaleIndirect evidence	San Francisco, CA, United States	11-50	17
	“Generate more pipeline and revenue at scale and ONLY pay for results.” Source: company website · checked Sep 2, 2026

Showing 25 of 205 AI sdr platforms based in San Francisco, United States

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AI sdr platforms based in San Francisco, United States at a glance

As of Sep 2, 2026

1-10Median size (employees)

San FranciscoLargest hub · 205 HQs

898Contacts with mobile numbers

Sep 2, 2026Data refreshed

Companies by employee count

1-10

110

11-50

51-200

201-500

501-1,000

1,001-5,000

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 AI sdr platforms, 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 “AI sdr platforms”. 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 AI sdr platforms, 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, 1,193 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 2, 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.

AI sdr platforms by metro in the United States

Frequently asked

How many AI sdr platforms are there based in San Francisco, United States?

RevenueBase identified 205 AI sdr platforms 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 AI sdr platforms?

San Francisco leads with 205 headquartered companies, followed by New York (133) and Austin (74).

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 1,193 verified decision-maker contacts tracked across these 205 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 2, 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.