Company lists · Data refreshed September 2026

Top 25 Enterprise voice solutions companies based in the United States

Name: Enterprise voice solutions 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 2, 2026 2,002 companies tracked

RevenueBase identified 2,002 enterprise voice solutions companies headquartered in the United States as of September 2026 and tracks 39,931 professional contacts across them, including 11,721 with verified work emails and 12,299 with mobile numbers. New York is the largest hub.

This list covers enterprise voice solutions 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 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

2,002Companies

39,931Contacts tracked

11,721Verified emails

12,299Mobile numbers

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The 25 largest enterprise voice solutions companies based in the United States

Ranked by team size

Top 25 of 2,002 enterprise voice solutions companies based in the United States, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise voice solutions 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	Vonage	Partial evidence	Holmdel, NJ, United States	1,001-5,000	3,512 contacts →
	Partial evidence “We’re making communications more flexible, intelligent, and personal, to help enterprises the world over stay ahead.” Source: RevenueBase Database · checked Sep 2, 2026
2	Ribbon Communications	Partial evidence	Plano, TX, United States	1,001-5,000	2,382 contacts →
	Partial evidence “Ribbon Communications (Nasdaq: RBBN) is a global provider of voice communications software, IP routing, and optical networking to mobile and wireline service providers…” Source: RevenueBase Database · checked Sep 2, 2026
3	GOTO	Indirect evidence	Boston, MA, United States	1,001-5,000	2,325 contacts →
	Indirect evidence “As the leader in cloud communications and IT, GoTo addresses real-world challenges with practical innovations and a customer-first mindset.” Source: RevenueBase Database · checked Sep 2, 2026
4	Polycom	Indirect evidence	Andover, MA, United States	1,001-5,000	1,783 contacts →
	Indirect evidence “Plantronics and Polycom are now Poly.” Source: RevenueBase Database · checked Sep 2, 2026
5	Intermedia Intelligent Communications	Partial evidence	Sunnyvale, CA, United States	1,001-5,000	1,251 contacts →
	Partial evidence “Intermedia is the cloud communications company that helps over businesses connect better, from wherever, through our AI-powered platform that includes voice, video conferencing…” Source: RevenueBase Database · checked Sep 2, 2026
6	Integra	Indirect evidence	Vancouver, WA, United States	501-1,000	1,134 contacts →
	Indirect evidence “Integra is Allstream.” Source: RevenueBase Database · checked Sep 2, 2026
7	CNT	Indirect evidence	Minneapolis, MN, United States	1,001-5,000	1,063 contacts →
	Indirect evidence “Computer Networking Products by CNT” Source: RevenueBase Database · checked Sep 2, 2026
8	Ooma, INC	Indirect evidence	Sunnyvale, CA, United States	501-1,000	604 contacts →
	Indirect evidence “Ooma delivers phone, messaging, video and advanced communications services that are easy to implement and provide great value.” Source: RevenueBase Database · checked Sep 2, 2026
9	Spectrumvoip	Indirect evidence	Plano, TX, United States	201-500	425 contacts →
	Indirect evidence “Family owned and proudly based in Plano, Texas, SpectrumVoIP has kept businesses talking and thriving since 2007.” Source: RevenueBase Database · checked Sep 2, 2026
10	Fusion Connect	Indirect evidence	Atlanta, GA, United States	201-500	423 contacts →
	Indirect evidence “Fusion Connect, an industry leading cloud communications provider, removes complexity so customers can focus on running their business.” Source: RevenueBase Database · checked Sep 2, 2026
11	phone.com	Indirect evidence	Poway, CA, United States	201-500	396 contacts →
	Indirect evidence “Founded in 2008 by veteran telecommunication entrepreneurs, Phone.com provides over businesses with comprehensive, flexible, and reliable cloud-based communication and…” Source: RevenueBase Database · checked Sep 2, 2026
12	Continuant	Partial evidence	Tacoma, WA, United States	201-500	363 contacts →
	Partial evidence “With three decades of expertise in the enterprise communications space, Continuant stands out as a seasoned Managed Services Provider, Systems Integrator, and Technology…” Source: RevenueBase Database · checked Sep 2, 2026
13	Wildix	Partial evidence	Columbus, OH, United States	201-500	337 contacts →
	Partial evidence “The First Sales-Oriented Unified Communications Solution Your communications system can either boost your revenue or create bottlenecks that slow your business down.” Source: RevenueBase Database · checked Sep 2, 2026
14	Net2phone	Partial evidence	Newark, NJ, United States	1,001-5,000	260 contacts →
	Partial evidence “net2phone is a business communication solutions provider focused on optimizing customer experiences through AI-powered platforms.” Source: RevenueBase Database · checked Sep 2, 2026
15	Broadsoft	Indirect evidence	Gaithersburg, MD, United States	1,001-5,000	251 contacts →
	Indirect evidence “BroadSoft, now part of Cisco, is the leading provider of software and services that enable mobile, fixed-line and cable service providers to offer Unified Communications over…” Source: RevenueBase Database · checked Sep 2, 2026
16	Dialogic	Partial evidence	Parsippany, NJ, United States	201-500	242 contacts →
	Partial evidence “A leading cloud-optimized solutions provider for real-time communications media, applications, and infrastructure.” Source: RevenueBase Database · checked Sep 2, 2026
17	Optimum Business	Partial evidence	Bethpage, United States	201-500	208 contacts →
	Partial evidence “Empower your business with fast, secure, and reliable connectivity solutions-all with the flexibility and support you deserve.” Source: RevenueBase Database · checked Sep 2, 2026
18	Grandstream Networks	Partial evidence	Plano, TX, United States	201-500	191 contacts →
	Partial evidence “Grandstream has been connecting the world since 2002 with unified communications and networking solutions that make communicating more impactful than ever before.” Source: RevenueBase Database · checked Sep 2, 2026
19	Vertical Communications	Partial evidence	Tempe, AZ, United States	201-500	174 contacts →
	Partial evidence “Vertical Communications is a leading provider of communications platforms and applications that enable critical business workflows for enterprises across a variety of industries…” Source: RevenueBase Database · checked Sep 2, 2026
20	Tadiran Telecom	Partial evidence	Kennesaw, GA, United States	201-500	172 contacts →
	Partial evidence “Tadiran Telecom is an established global provider of Unified Communications & Collaboration (UC & C), Contact Center, and Control Room solutions, serving businesses of all sizes…” Source: RevenueBase Database · checked Sep 2, 2026
21	Voip Office	Indirect evidence	Troy, MI, United States	201-500	165 contacts →
	Indirect evidence “VoIP Office, a leading provider of Cloud based communications, makes it affordable and easy to connect to anyone, anywhere in the world.” Source: RevenueBase Database · checked Sep 2, 2026
22	Altura Communication Solutions	Partial evidence	New Hope, MN, United States	201-500	123 contacts →
	Partial evidence “Altura Communication Solutions, with offices nationwide, is one of Avaya's largest Diamond Business Partners and a leading provider of communication-enabled solutions and…” Source: RevenueBase Database · checked Sep 2, 2026
23	Outsource	Indirect evidence	Longwood, FL, United States	201-500	113 contacts →
	Indirect evidence “Outsource, Inc.” Source: RevenueBase Database · checked Sep 2, 2026
24	Star2star	Partial evidence	Sarasota, FL, United States	201-500	104 contacts →
	Partial evidence “Founded in 2006 in Sarasota, Florida, Star2Star Communications delivers the World's Leading Hybrid Cloud Communications Solution.” Source: RevenueBase Database · checked Sep 2, 2026
25	Channel Blend	Strong evidence	Idaho Falls, ID, United States	201-500	101 contacts →
	Strong evidence “Channel Blend offers innovative solutions that allow consumers and businesses communication via an internet to voice channel.” Source: RevenueBase Database · checked Sep 2, 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: enterprise voice solutions 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 enterprise voice solutions companies.
Partial evidence: Its own public description names part of enterprise voice solutions companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise voice solutions 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 2,002 enterprise voice solutions companies based in the United States

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Enterprise voice solutions companies based in the United States at a glance

As of Sep 2, 2026

29.4%Verified-email coverage

30.8%Mobile-number coverage

19.9Average contacts per company

11-50Median size (employees)

3.2%Largest-city concentration · New York

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

858

11-50

856

51-200

216

201-500

501-1,000

1,001-5,000

10001+

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 enterprise voice solutions 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 “enterprise voice solutions 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 enterprise voice solutions 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 enterprise voice solutions 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, 11,721 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.

Enterprise voice solutions 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 enterprise voice solutions 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 enterprise voice solutions companies are there based in the United States?

RevenueBase identified 2,002 enterprise voice solutions 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?

Vonage, headquartered in Holmdel, tops this list with the largest team on record.

Which city has the most enterprise voice solutions companies?

New York leads with 64 headquartered companies, followed by Houston (34) and Dallas (34).

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 11,721 verified decision-maker contacts tracked across these 2,002 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 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.