Company lists · Data refreshed September 2026

Top 25 Voice support software companies based in the United States

Name: Voice support software companies 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 510 companies tracked

RevenueBase identified 510 voice support software companies headquartered in the United States as of September 2026 and tracks 9,993 professional contacts across them, including 3,763 with verified work emails. San Francisco is the largest hub.

This list covers voice support software companies 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

510Companies

9,993Contacts tracked

3,763Verified emails

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The 25 largest voice support software companies based in the United States

Ranked by team size

Top 25 of 510 voice support software companies 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 voice support software companies: 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	Dialpad	Indirect evidence	San Ramon, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,473 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
2	Aircall	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	501-1,000	804 contacts →
	Indirect evidence “The collaborative, AI-powered platform for customer conversations.” Source: RevenueBase Database · checked Sep 29, 2026
3	Soundhound AI	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 29, 2026	501-1,000	669 contacts →
	Partial evidence “SoundHound AI (Nasdaq: SOUN), a global leader in voice and conversational AI, delivers solutions that allow businesses to offer superior experiences to their customers.” Source: RevenueBase Database · checked Sep 29, 2026
4	Saas Labs	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 29, 2026	201-500	448 contacts →
	Partial evidence “SaaS Labs is all about helping sales and support teams reach their full potential.” Source: RevenueBase Database · checked Sep 29, 2026
5	ASAPP	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	310 contacts →
	Indirect evidence “ASAPP is an artificial intelligence solution provider committed to solving the toughest problems in customer service.” Source: RevenueBase Database · checked Sep 29, 2026
6	Outplex	Partial evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 29, 2026	1,001-5,000	301 contacts →
	Partial evidence “OutPLEX is a leading international digital and voice customer contact management services organization developing solutions for the world's most trusted brands.” Source: RevenueBase Database · checked Sep 29, 2026
7	Net2phone	Indirect evidence	Newark, NJ, United StatesHQ checked Sep 29, 2026	1,001-5,000	260 contacts →
	Indirect evidence “net2phone is a business communication solutions provider focused on optimizing customer experiences through AI-powered platforms.” Source: RevenueBase Database · checked Sep 29, 2026
8	Movius	Partial evidence	Alpharetta, GA, United StatesHQ checked Sep 29, 2026	51-200	237 contacts →
	Partial evidence “We solve a critical gap businesses face with employee to client communication, over voice and messaging.” Source: RevenueBase Database · checked Sep 29, 2026
9	gnani.ai	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	51-200	234 contacts →
	Partial evidence “Gnani AI is the frontier Voice AI company the world runs on.” Source: RevenueBase Database · checked Sep 29, 2026
10	3clogic	Partial evidence	Rockville, MD, United StatesHQ checked Sep 29, 2026	51-200	191 contacts →
	Partial evidence “3CLogic transforms customer and employee experiences with its leading Cloud Contact Center and Voice AI capabilities purpose-built to enhance today's leading CRM and Customer…” Source: RevenueBase Database · checked Sep 29, 2026
11	Vcloud	Indirect evidence	Las Vegas, United StatesHQ checked Sep 29, 2026	501-1,000	136 contacts →
	Indirect evidence “VCloud Interactive: Redefining Contact Center and Communications with AI and Cloud Technology VCloud Interactive, a subsidiary of VoiceCloud LLC, has been at the forefront of…” Source: RevenueBase Database · checked Sep 29, 2026
12	Amtelco	Partial evidence	Mcfarland, WI, United StatesHQ checked Sep 29, 2026	51-200	118 contacts →
	Partial evidence “Amtelco has been a family-owned communication software company since 1976 and devoted to providing secure, stable, and critical communication solutions for healthcare, contact…” Source: RevenueBase Database · checked Sep 29, 2026
13	VAPI	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	51-200	111 contacts →
	Partial evidence “Voice is the human interface for business.” Source: RevenueBase Database · checked Sep 29, 2026
14	Retell	Partial evidence	Redwood City, CA, United StatesHQ checked Sep 29, 2026	51-200	97 contacts →
	Partial evidence “Retell is the #1 voice AI agent platform, enabling you to build, test, deploy, and monitor voice AI agents.” Source: RevenueBase Database · checked Sep 29, 2026
15	Aloware	Indirect evidence	Scottsdale, AZ, United StatesHQ checked Sep 29, 2026	51-200	89 contacts →
	Indirect evidence “Aloware is the compliant, AI-driven phone system that works with your CRM to help you improve sales conversations.” Source: RevenueBase Database · checked Sep 29, 2026
16	Ilsa Interactive	Indirect evidence	Northampton, MA, United StatesHQ checked Sep 29, 2026	51-200	84 contacts →
	Indirect evidence “ILSA Interactive helps businesses modernize and automate their existing (often legacy) systems using AI.” Source: RevenueBase Database · checked Sep 29, 2026
17	Botscrew	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	51-200	77 contacts →
	Partial evidence “At BotsCrew, we revolutionize the way companies engage with their customers and empower their employees through innovative generative AI agents and voice assistants.” Source: RevenueBase Database · checked Sep 29, 2026
18	Pypestream	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	75 contacts →
	Indirect evidence “Pypestream is reimagining how enterprises connect with their customers in the era of Applied AI.” Source: RevenueBase Database · checked Sep 29, 2026
19	Callhippo	Partial evidence	Claymont, DE, United StatesHQ checked Sep 29, 2026	51-200	75 contacts →
	Partial evidence “CallHippo is an AI-powered business communication platform built to empower sales and support teams with seamless, smart, and scalable interactions.” Source: RevenueBase Database · checked Sep 29, 2026
20	Onvisource	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	51-200	66 contacts →
	Indirect evidence “With over 21 years of proven industry experience and contact center domain expertise, OnviSource, Inc, pioneers “Un-Tooling AI” and delivers AI not as a tool but as a workforce…” Source: RevenueBase Database · checked Sep 29, 2026
21	Swampfox Technologies	Partial evidence	Columbia, SC, United StatesHQ checked Sep 29, 2026	51-200	58 contacts →
	Partial evidence “Swampfox Technologies is a modern software, solutions and services company focused on empowering amazing customer journeys for the enterprise Contact Center.” Source: RevenueBase Database · checked Sep 29, 2026
22	Redroute	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	58 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
23	Voicing AI	Partial evidence	Dover, DE, United StatesHQ checked Sep 29, 2026	11-50	56 contacts →
	Partial evidence “We are the leaders in providing enterprise grade conversational AI infrastructure to intelligently automate tasks with voice AI agents indistinguishable from humans.” Source: RevenueBase Database · checked Sep 29, 2026
24	Textel By Capacity	Indirect evidence	University City, MO, United StatesHQ checked Sep 29, 2026	51-200	56 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
25	Orion Labs	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	n/a	55 contacts →
	Indirect evidence “Orion has pioneered frontline worker access to AI, enabling an easy and compelling new concept: Frontline AI.” 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: voice support software companies. 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 voice support software companies.
Partial evidence: Its own public description names part of voice support software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name voice support software companies. 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 510 voice support software companies based in the United States

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Voice support software companies based in the United States at a glance

As of Sep 29, 2026

37.7%Verified-email coverage

19.6Average contacts per company

1-10Median size (employees)

8.8%Largest-city concentration · San Francisco

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

272

11-50

167

51-200

201-500

501-1,000

1,001-5,000

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 510 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 voice support software companies, 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 “voice support software companies”. 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 voice support software companies), 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 voice support software companies, 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, 3,763 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.

Voice support software companies 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 voice support software companies, 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 voice support software companies are there based in the United States?

RevenueBase identified 510 voice support software companies 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?

Dialpad, headquartered in San Ramon, tops this list with the largest team on record.

Which city has the most voice support software companies?

San Francisco leads with 45 headquartered companies, followed by New York (37) and Austin (19).

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 3,763 verified decision-maker contacts tracked across these 510 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.