Company lists · Data refreshed September 2026

Top 25 Outbound sales automation platforms based in the United States

Name: Outbound sales automation platforms 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 2,720 companies tracked

RevenueBase identified 2,720 company matches for outbound sales automation platforms associated with the United States as of September 2026 and tracks 48,448 professional contacts across them, including 15,672 with verified work emails. San Francisco is the largest hub.

This list covers company matches for outbound sales automation platforms associated with the 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 29, 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 29, 2026 How this list was built

2,720Companies

48,448Contacts tracked

15,672Verified emails

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The 25 largest outbound sales automation platforms based in the United States

Ranked by team size

Top 25 of 2,720 company matches for outbound sales automation platforms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Klaviyo	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,789 contacts →
	Exact match “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	THRYV	Exact match	Dallas, TX, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,412 contacts →
	Exact match “Thryv is an AI-powered platform built to help small businesses get found, win customers, and drive repeat sales.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Highlevel	Exact match	Dallas, TX, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,767 contacts →
	Exact match “Your tech stack is costing you more than money.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	6sense	Exact match	San Francisco, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,443 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Talkdesk	Exact match	San Francisco, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,316 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Outreach	Exact match	Seattle, WA, United StatesHQ recorded Sep 29, 2026	501-1,000	1,281 contacts →
	Exact match “Outreach, founded in 2014, is the only complete agentic AI platform for revenue teams.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Centro	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	501-1,000	1,178 contacts →
	Exact match “Basis Technologies is a global provider of workflow automation, intelligence and programmatic trading software for the marketing enterprise.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Cience	Exact match	Miami, FL, United StatesHQ recorded Sep 29, 2026	201-500	1,068 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Pipedrive	Exact match	New York, NY, United StatesHQ recorded Sep 29, 2026	501-1,000	970 contacts →
	Exact match “Founded in 2010, Pipedrive is an easy and effective sales CRM that drives small business growth.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Creatio	Exact match	Boston, MA, United StatesHQ recorded Sep 29, 2026	501-1,000	939 contacts →
	Exact match “AI CRM and workflow platform where people and AI agents work together, with no limits on users, agents, or scale.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Activecampaign	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	1,001-5,000	863 contacts →
	Exact match “ActiveCampaign is the AI-first autonomous marketing platform built to transform how marketers, agencies, and entrepreneurs work.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	apollo.io	Exact match	San Francisco, CA, United StatesHQ recorded Sep 29, 2026	501-1,000	863 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Demandbase	Exact match	San Francisco, CA, United StatesHQ recorded Sep 29, 2026	501-1,000	861 contacts →
	Exact match “Demandbase is the only pipeline AI platform that empowers GTM teams to automate growth at scale.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Aircall	Exact match	New York, NY, United StatesHQ recorded Sep 29, 2026	501-1,000	804 contacts →
	Exact match “The collaborative, AI-powered platform for customer conversations.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Sugarai	Exact match	Denver, CO, United StatesHQ recorded Sep 29, 2026	501-1,000	576 contacts →
	Exact match “SugarAI: the CRM that actually helps sellers sell.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Callbox INC	Exact match	Encino, CA, United StatesHQ recorded Sep 29, 2026	201-500	499 contacts →
	Exact match “Callbox is the #1 trusted lead generation services and AI-Powered Growth Strategy Partner by enterprise and scaling businesses in the USA, Canada, Asia Pacific, Latin America…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Saleshive	Exact match	Denver, CO, United StatesHQ recorded Sep 29, 2026	51-200	455 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Calliduscloud	Exact match	Dublin, CA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	357 contacts →
	Exact match “CallidusCloud is now SAP Sales Cloud, part of the SAP Customer Experience division of SAP.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Callrail	Exact match	Atlanta, GA, United StatesHQ recorded Sep 29, 2026	201-500	332 contacts →
	Exact match “CallRail is the lead engagement platform that makes it easy for businesses to attract more leads, convert more customers, and optimize their marketing.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	NOOKS	Exact match	San Francisco, CA, United StatesHQ recorded Sep 29, 2026	51-200	318 contacts →
	Exact match “Nooks is the Agent Workspace for intelligent outbound.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Aviso AI	Exact match	Redwood City, CA, United StatesHQ recorded Sep 29, 2026	201-500	297 contacts →
	Exact match “Aviso delivers Agentic AI that turns insights into autonomous actions, giving GTM teams precision, speed, and control to drive predictable growth at scale.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Vinsolutions By COX Automotive	Exact match	Mission, KS, United StatesHQ recorded Sep 29, 2026	501-1,000	292 contacts →
	Exact match “VinSolutions is automotive CRM software designed to help dealerships turn shopper behavior into action-and results.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Acqueon	Exact match	Irving, TX, United StatesHQ recorded Sep 29, 2026	201-500	268 contacts →
	Exact match “Acqueon leads the way as the premier Generative AI-powered Revenue Execution Platform, specializing in outbound communications tailored to empower B2C enterprises in regulated and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Warrior Plus	Exact match	Henderson, NV, United StatesHQ recorded Sep 29, 2026	n/a	260 contacts →
	Exact match “Best-in-class sales & marketing automation platform and marketplace for digital business owners and online marketers” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Rocket Connections	Exact match	Detroit, MI, United StatesHQ recorded Sep 29, 2026	1,001-5,000	247 contacts →
	Exact match “Rocket Connections is a sales and support platform specializing in contact center services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “outbound sales automation platforms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 2,720 outbound sales automation platforms based in the United States

See the full list, filter by size, metro and specialty, and access 15,672 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Outbound sales automation platforms based in the United States at a glance

As of Sep 29, 2026

32.3%Verified-email coverage

17.8Average contacts per company

1-10Median size (employees)

6.9%Largest-city concentration · San Francisco

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,683

11-50

774

51-200

197

201-500

501-1,000

1,001-5,000

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 2,720 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 the United States whose business descriptions match “outbound sales automation 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 15,672 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 29, 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.

Outbound sales automation platforms by metro

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 “outbound sales automation platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many outbound sales automation platforms are there based in the United States?

RevenueBase identified 2,720 company matches for outbound sales automation platforms associated with the 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?

Klaviyo tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most outbound sales automation platforms?

San Francisco leads with 189 company records, followed by New York (171) and Sheridan (91).

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 15,672 professional contacts with verified work emails tracked across these 2,720 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 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 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.