Company lists · Data verified August 2026

Top 25 Enterprise voip providers based in the United States

Name: Enterprise voip providers 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 1,030 companies tracked

There are 1,030 enterprise voip providers headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 14,367 professional contacts across them, including 4,501 with verified work emails and 3,970 with mobile numbers. New York is the largest hub.

This list covers enterprise voip providers 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.

1,030Companies

14,367Contacts tracked

4,501Verified emails

3,970Mobile numbers

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The 25 largest enterprise voip providers based in the United States

Ranked by team size

Top 25 of 1,030 enterprise voip providers 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	GOTO	Boston, MA	1,001-5,000	2,325	1,286
2	CNT	Minneapolis, MN	1,001-5,000	1,063	1
3	Ooma, INC	Sunnyvale, CA	501-1,000	604	286
4	Spectrumvoip	Plano, TX	201-500	425	167
5	phone.com	Poway, CA	201-500	396	52
6	Wildix	Columbus, OH	201-500	337	166
7	Forerunner Technologies, INC	Edgewood, NY	51-200	183	108
8	Voip Office	Troy, MI	201-500	165	39
9	IPCOM	Miramar, FL	51-200	140	31
10	Estech Systems, Inc. ESI	Plano, TX	51-200	121	57
11	Skyswitch	Blue Bell, PA	501-1,000	111	80
12	Ipfone	Jacksonville, FL	51-200	99	58
13	Inextrix Technologies Pvt. LTD	Orlando, FL	51-200	93	65
14	Euphoria Telecom	Sandton	51-200	90	56
15	Telecomp	Cushing, OK	51-200	74	48
16	Verve Cloud	San Diego, CA	51-200	64	34
17	Lightspeed Voice	North Venice, FL	51-200	62	50
18	Clarity Voice	Southfield, MI	51-200	59	42
19	Monmouth Telecom	Eatontown, NJ	51-200	54	3
20	West IP Communications	Louisville, KY	n/a	54	1
21	Telesphere NOW Vonage	Holmdel, NJ	1,001-5,000	49	4
22	Clearlyip	Appleton, WI	201-500	45	31
23	Teamsos Special Order Systems	Las Vegas, NV	51-200	45	24
24	Telquest International	Fairfield, NJ	51-200	41	13
25	Shamrock Communications	Katy, TX	51-200	40	4

Showing 25 of 1,030 enterprise voip providers based in the United States

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Enterprise voip providers based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 45 HQs

3,970Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

434

11-50

463

51-200

201-500

501-1,000

1,001-5,000

10001+

Enterprise voip providers by metro

Metro	Companies
Enterprise voip providers in New York	45
Enterprise voip providers in Dallas	20
Enterprise voip providers in Miami	19
Enterprise voip providers in Tampa	16
Enterprise voip providers in Houston	13
Enterprise voip providers in Austin	13
Enterprise voip providers in Los Angeles	12

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 voip providers”, 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 voip providers are there based in the United States?

There are 1,030 enterprise voip providers headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

GOTO, headquartered in Boston, tops this list with the largest team on record.

Which city has the most enterprise voip providers?

New York leads with 45 headquartered companies, followed by Dallas (20) and Miami (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 4,501 verified decision-maker contacts tracked across these 1,030 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 voip providers 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.