Company lists · Data refreshed September 2026

Top 25 Voice AI companies for customer service based in the United States

RevenueBase identified 1,054 company matches for voice AI companies for customer service associated with the United States as of September 2026 and tracks 42,080 professional contacts across them, including 12,751 with verified work emails. San Francisco is the largest hub.

This list covers company matches for voice AI companies for customer service 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
1,054Companies
42,080Contacts tracked
12,751Verified emails
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The 25 largest voice AI companies for customer service based in the United States

Ranked by team size
Top 25 of 1,054 company matches for voice AI companies for customer service 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCampbell, CA, United StatesHQ recorded Sep 29, 202610001+8,461 contacts →

Exact match

“24]7.ai™ customer engagement solutions use conversational artificial intelligence to understand customer intent, enabling companies to create personalized, predictive, and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchMelville, NY, United StatesHQ recorded Sep 29, 20265,001-10,0003,852 contacts →

Exact match

“Verint helps you deliver AI outcomes now to solve your most pressing CX automation challenges in the contact center and beyond.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchBurlington, MA, United StatesHQ recorded Sep 29, 202610001+3,544 contacts →

Exact match

“Nuance Communications is a technology pioneer with market leadership in conversational, ambient, and generative AI.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchNacogdoches, TX, United StatesHQ recorded Sep 29, 20261,001-5,0002,964 contacts →

Exact match

“Etech Global Services delivers customer experience solutions and proprietary AI technology to Fortune 500 companies across telecommunications, healthcare, financial services, and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchScottsdale, AZ, United StatesHQ recorded Sep 29, 20261,001-5,0001,638 contacts →

Exact match

“Build amazing customer experiences with Nextiva’s AI-powered platform.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchSan Ramon, CA, United StatesHQ recorded Sep 29, 20261,001-5,0001,473 contacts →

Exact match

“Dialpad is the leading AI-powered communications intelligence platform creating human-first, AI-enhanced solutions that will drive the next wave of how businesses communicate with…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 29, 2026501-1,0001,248 contacts →

Exact match

“LivePerson (NASDAQ: LPSN) is the leader in predictable conversational AI and digital transformation.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Sep 29, 2026501-1,000804 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
9Exact matchNew York, United StatesHQ recorded Sep 29, 2026n/a679 contacts →

Exact match

“Research Lab.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchSanta Clara, CA, United StatesHQ recorded Sep 29, 2026501-1,000669 contacts →

Exact match

“SoundHound AI (Nasdaq: SOUN), a global leader in voice and conversational AI, delivers solutions that allow businesses to offer superior experiences to their customers.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 2026201-500561 contacts →

Exact match

“Sierra helps businesses build better, more human customer experiences with AI.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchPalo Alto, CA, United StatesHQ recorded Sep 29, 2026201-500448 contacts →

Exact match

“SaaS Labs is all about helping sales and support teams reach their full potential.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchTulsa, United StatesHQ recorded Sep 29, 2026n/a377 contacts →

Exact match

“iPacesetters”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 2026201-500321 contacts →

Exact match

“The leading provider of enterprise AI agents for customer service.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchWaltham, MA, United StatesHQ recorded Sep 29, 2026201-500320 contacts →

Exact match

“CallMiner is the global leader in AI-powered conversation intelligence and customer experience (CX) automation.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchSan Mateo, CA, United StatesHQ recorded Sep 29, 202651-200316 contacts →

Exact match

“Presto is the Voice AI market leader for restaurant drive-thrus.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Sep 29, 2026201-500310 contacts →

Exact match

“ASAPP is an artificial intelligence solution provider committed to solving the toughest problems in customer service.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchFort Lauderdale, FL, United StatesHQ recorded Sep 29, 20261,001-5,000301 contacts →

Exact match

“OutPLEX is a leading international digital and voice customer contact management services organization developing solutions for the world's most trusted brands.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 2026501-1,000294 contacts →

Exact match

“Decagon is the leading conversational AI platform empowering every brand to deliver concierge customer experiences.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchDania Beach, FL, United StatesHQ recorded Sep 29, 2026201-500278 contacts →

Exact match

“IntelePeer's Agentic AI business is now Aqurio.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchNewark, NJ, United StatesHQ recorded Sep 29, 20261,001-5,000260 contacts →

Exact match

“net2phone is a business communication solutions provider focused on optimizing customer experiences through AI-powered platforms.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchAustin, TX, United StatesHQ recorded Sep 29, 2026201-500247 contacts →

Exact match

“AI agents to engage and delight your customers across Phone calls, Chat, WhatsApp, SMS, Email and Slack.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchBerkeley, CA, United StatesHQ recorded Sep 29, 202651-200246 contacts →

Exact match

“Krisp builds real-time Voice AI for the real world.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 202651-200234 contacts →

Exact match

“Gnani AI is the frontier Voice AI company the world runs on.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchAlexandria, VA, United StatesHQ recorded Sep 29, 20261,001-5,000226 contacts →

Exact match

“VIPdesk delivers AI-first customer experience-built to resolve the majority of interactions automatically, with intelligent, seamless escalation to human expertise for complex…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 1,054 voice AI companies for customer service based in the United States

See the full list, filter by size, metro and specialty, and access 12,751 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Voice AI companies for customer service based in the United States at a glance

As of Sep 29, 2026
30.3%Verified-email coverage
39.9Average contacts per company
1-10Median size (employees)
10.9%Largest-city concentration · San Francisco
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
597
11-50
312
51-200
94
201-500
24
501-1,000
13
1,001-5,000
10
5,001-10,000
1
10001+
2

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 1,054 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 “voice AI companies for customer service” 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 12,751 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.

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 “voice AI companies for customer service”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many voice AI companies for customer service are there based in the United States?

RevenueBase identified 1,054 company matches for voice AI companies for customer service 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?

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

Which city has the most voice AI companies for customer service?

San Francisco leads with 115 company records, followed by New York (74) and Austin (33).

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 12,751 professional contacts with verified work emails tracked across these 1,054 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.