Company lists · Data verified August 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 Verified Aug 28, 2026 2,002 companies tracked

There are 2,002 enterprise voice solutions companies headquartered in the United States (RevenueBase, August 2026). RevenueBase 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. Data current as of August 28, 2026.

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 verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Vonage	Holmdel, NJ	1,001-5,000	3,512	1,736
2	Ribbon Communications	Plano, TX	1,001-5,000	2,382	2
3	GOTO	Boston, MA	1,001-5,000	2,325	1,286
4	Polycom	Andover, MA	1,001-5,000	1,783	64
5	Intermedia Intelligent Communications	Sunnyvale, CA	1,001-5,000	1,251	672
6	Integra	Vancouver, WA	501-1,000	1,134	24
7	CNT	Minneapolis, MN	1,001-5,000	1,063	1
8	Ooma, INC	Sunnyvale, CA	501-1,000	604	286
9	Spectrumvoip	Plano, TX	201-500	425	167
10	Fusion Connect	Atlanta, GA	201-500	423	264
11	phone.com	Poway, CA	201-500	396	52
12	Continuant	Tacoma, WA	201-500	363	192
13	Wildix	Columbus, OH	201-500	337	166
14	Net2phone	Newark, NJ	1,001-5,000	260	131
15	Broadsoft	Gaithersburg, MD	1,001-5,000	251	42
16	Dialogic	Parsippany, NJ	201-500	242	24
17	Optimum Business	Bethpage	201-500	208	79
18	Grandstream Networks	Plano, TX	201-500	191	70
19	Vertical Communications	Tempe, AZ	201-500	174	69
20	Tadiran Telecom	Kennesaw, GA	201-500	172	33
21	Voip Office	Troy, MI	201-500	165	39
22	Altura Communication Solutions	New Hope, MN	201-500	123	19
23	Outsource	Longwood, FL	201-500	113	20
24	Star2star	Sarasota, FL	201-500	104	35
25	Channel Blend	Idaho Falls, ID	201-500	101	8

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 Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 64 HQs

12,299Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

858

11-50

856

51-200

216

201-500

501-1,000

1,001-5,000

10001+

Enterprise voice solutions companies by metro

Metro	Companies
Enterprise voice solutions companies in New York	64
Enterprise voice solutions companies in Houston	34
Enterprise voice solutions companies in Dallas	34
Enterprise voice solutions companies in Austin	33
Enterprise voice solutions companies in Tampa	24
Enterprise voice solutions companies in Atlanta	24
Enterprise voice solutions companies in Miami	23

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “enterprise voice solutions companies”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

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

There are 2,002 enterprise voice solutions companies headquartered in the United States as of August 2026 (RevenueBase).

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 is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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Enterprise voice solutions companies by geography

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.