Company lists · Data refreshed September 2026

Top 25 Sales automation platform developers based in the United States

Name: Sales automation platform developers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 3,578 companies tracked

RevenueBase identified 3,578 sales automation platform developers headquartered in the United States as of September 2026 and tracks 161,656 professional contacts across them, including 90,646 with verified work emails. San Francisco is the largest hub.

This list covers sales automation platform developers headquartered in the 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

3,578Companies

161,656Contacts tracked

90,646Verified emails

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The 25 largest sales automation platform developers based in the United States

Ranked by team size

Top 25 of 3,578 sales automation platform developers based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to sales automation platform developers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Salesforce	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	10001+	86,470 contacts →
	Partial evidence “We're the #1 AI CRM-where humans with agents drive customer success together with AI, data, and Customer 360 apps on one platform.” Source: RevenueBase Database · checked Sep 29, 2026
2	Hubspot	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 29, 2026	5,001-10,000	11,077 contacts →
	Partial evidence “HubSpot is a leading agentic customer platform that provides software and support to help businesses grow better.” Source: RevenueBase Database · checked Sep 29, 2026
3	Tekion Corp	Partial evidence	Pleasanton, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,036 contacts →
	Partial evidence “Tekion is redefining automotive retail with an end-to-end, AI-native platform purpose-built for the industry.” Source: RevenueBase Database · checked Sep 29, 2026
4	Klaviyo	Indirect evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,789 contacts →
	Indirect evidence “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Source: RevenueBase Database · checked Sep 29, 2026
5	THRYV	Strong evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,412 contacts →
	Strong evidence “Thryv is an AI-powered platform built to help small businesses get found, win customers, and drive repeat sales.” Source: RevenueBase Database · checked Sep 29, 2026
6	GONG	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,944 contacts →
	Indirect evidence “Transform how your revenue team wins with AI The Gong Revenue AI Operating System brings customer data, insights, and workflows together in one trusted place.” Source: RevenueBase Database · checked Sep 29, 2026
7	Highlevel	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,767 contacts →
	Indirect evidence “Your tech stack is costing you more than money.” Source: RevenueBase Database · checked Sep 29, 2026
8	6sense	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,443 contacts →
	Indirect evidence “6sense is on a mission to revolutionize the way B2B organizations create revenue by predicting customers most likely to buy and recommending the best course of action to engage…” Source: RevenueBase Database · checked Sep 29, 2026
9	Talkdesk	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,316 contacts →
	Strong evidence “Talkdesk® is leading a new era in customer experience with Customer Experience Automation (CXA)-a new category and platform designed to automate the full complexity of modern…” Source: RevenueBase Database · checked Sep 29, 2026
10	Outreach	Partial evidence	Seattle, WA, United StatesHQ checked Sep 29, 2026	501-1,000	1,281 contacts →
	Partial evidence “Outreach, founded in 2014, is the only complete agentic AI platform for revenue teams.” Source: RevenueBase Database · checked Sep 29, 2026
11	Centro	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	501-1,000	1,178 contacts →
	Partial evidence “Basis Technologies is a global provider of workflow automation, intelligence and programmatic trading software for the marketing enterprise.” Source: RevenueBase Database · checked Sep 29, 2026
12	T-Roc	Partial evidence	Coral Gables, FL, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,135 contacts →
	Partial evidence “The Revenue Optimization Companies (T-ROC) is home to four sales solutions companies that enable clients to fulfill all of their sales performance needs.” Source: RevenueBase Database · checked Sep 29, 2026
13	Cience	Indirect evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	201-500	1,068 contacts →
	Indirect evidence “CIENCE Technologies, Inc, founded in 2015 and headquartered in Denver, CO, is a pioneering global company in lead generation software and services, committed to transforming the…” Source: RevenueBase Database · checked Sep 29, 2026
14	Pipedrive	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	501-1,000	970 contacts →
	Partial evidence “Founded in 2010, Pipedrive is an easy and effective sales CRM that drives small business growth.” Source: RevenueBase Database · checked Sep 29, 2026
15	Creatio	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	501-1,000	939 contacts →
	Partial evidence “AI CRM and workflow platform where people and AI agents work together, with no limits on users, agents, or scale.” Source: RevenueBase Database · checked Sep 29, 2026
16	Airtable	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	501-1,000	912 contacts →
	Partial evidence “Airtable’s AI app platform is the easiest way to build custom apps that accelerate your business operations.” Source: RevenueBase Database · checked Sep 29, 2026
17	Activecampaign	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	863 contacts →
	Partial evidence “ActiveCampaign is the AI-first autonomous marketing platform built to transform how marketers, agencies, and entrepreneurs work.” Source: RevenueBase Database · checked Sep 29, 2026
18	apollo.io	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	501-1,000	863 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 29, 2026
19	Demandbase	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	501-1,000	861 contacts →
	Partial evidence “Demandbase is the only pipeline AI platform that empowers GTM teams to automate growth at scale.” Source: RevenueBase Database · checked Sep 29, 2026
20	Optimove	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	501-1,000	588 contacts →
	Indirect evidence “Optimove, the creator of Positionless Marketing, frees marketing teams from the limitations of fixed roles, giving every marketer the power to execute any marketing task instantly…” Source: RevenueBase Database · checked Sep 29, 2026
21	Sugarai	Indirect evidence	Denver, CO, United StatesHQ checked Sep 29, 2026	501-1,000	576 contacts →
	Indirect evidence “SugarAI: the CRM that actually helps sellers sell.” Source: RevenueBase Database · checked Sep 29, 2026
22	Infoanalytica, INC	Partial evidence	San Jose, CA, United StatesHQ checked Sep 29, 2026	201-500	482 contacts →
	Partial evidence “InfoAnalytica is a B2B sales acceleration partner for mid-market and enterprise companies.” Source: RevenueBase Database · checked Sep 29, 2026
23	Retool	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	201-500	413 contacts →
	Indirect evidence “Vibe coding got apps out of engineering.” Source: RevenueBase Database · checked Sep 29, 2026
24	Showpad	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 29, 2026	501-1,000	405 contacts →
	Indirect evidence “Showpad is the leader in revenue effectiveness, helping organizations in complex, field-driven industries turn strategy into execution and execution into measurable growth.” Source: RevenueBase Database · checked Sep 29, 2026
25	Calliduscloud	Partial evidence	Dublin, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	357 contacts →
	Partial evidence “CallidusCloud is now SAP Sales Cloud, part of the SAP Customer Experience division of SAP.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: sales automation platform developers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names sales automation platform developers.
Partial evidence: Its own public description names part of sales automation platform developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sales automation platform developers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 3,578 sales automation platform developers based in the United States

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Sales automation platform developers based in the United States at a glance

As of Sep 29, 2026

56.1%Verified-email coverage

45.2Average contacts per company

1-10Median size (employees)

6.2%Largest-city concentration · San Francisco

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

2,203

11-50

1,009

51-200

265

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,578 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 sales automation platform developers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “sales automation platform developers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sales automation platform developers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among sales automation platform developers, and records with no verified work email. Companies headquartered outside United States 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 its RevenueBase Smart Search 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, 90,646 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 29, 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.

Sales automation platform developers by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sales automation platform developers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many sales automation platform developers are there based in the United States?

RevenueBase identified 3,578 sales automation platform developers headquartered in the 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?

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

Which city has the most sales automation platform developers?

San Francisco leads with 223 headquartered companies, followed by New York (190) and Austin (98).

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 90,646 verified decision-maker contacts tracked across these 3,578 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 29, 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 Smart Search, 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.