Company lists · Data refreshed September 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 Data refreshed Sep 2, 2026 1,030 companies tracked

RevenueBase identified 1,030 enterprise voip providers headquartered in the United States as of September 2026 and 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. 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

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 refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise voip providers: 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	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
2	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
3	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
4	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
5	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
6	Wildix	Indirect evidence	Columbus, OH, United States	201-500	337 contacts →
	Indirect 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
7	Forerunner Technologies, INC	Indirect evidence	Edgewood, NY, United States	51-200	183 contacts →
	Indirect evidence “Established in 1988, Forerunner Technologies, Inc.” Source: RevenueBase Database · checked Sep 2, 2026
8	Voip Office	Partial evidence	Troy, MI, United States	201-500	165 contacts →
	Partial 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
9	IPCOM	Partial evidence	Miramar, FL, United States	51-200	140 contacts →
	Partial evidence “IPCOM Network provee Servicios Integrados Virtuales de Comunicación VoIP para reducir costos, aumentar la productividad y la inteligencia de negocios unificando soluciones de CRM…” Source: RevenueBase Database · checked Sep 2, 2026
10	Estech Systems, Inc. ESI	Indirect evidence	Plano, TX, United States	51-200	121 contacts →
	Indirect evidence “Founded in 1987, Estech Systems (ESI), a Crexendo® company, delivers high-performance phone systems designed for growing businesses.” Source: RevenueBase Database · checked Sep 2, 2026
11	Skyswitch	Indirect evidence	Blue Bell, PA, United States	501-1,000	111 contacts →
	Indirect evidence “SkySwitch is the leading white-label UCaaS reseller platform offering MSPs, VARs, telecom agents, interconnect ISPs and WISPs a cloud-based voice platform to brand under your own…” Source: RevenueBase Database · checked Sep 2, 2026
12	Ipfone	Partial evidence	Jacksonville, FL, United States	51-200	99 contacts →
	Partial evidence “Backed with over 25 years of industry experience, IPFone provides market-leading UCaaS, VoIP, SD-WAN, contact center solutions, and fiber Internet for business, all powered by…” Source: RevenueBase Database · checked Sep 2, 2026
13	Inextrix Technologies Pvt. LTD	Indirect evidence	Orlando, FL, United States	51-200	93 contacts →
	Indirect evidence “Inextrix Technologies Pvt.” Source: RevenueBase Database · checked Sep 2, 2026
14	Euphoria Telecom	Indirect evidence	Sandton, United States	51-200	90 contacts →
	Indirect evidence “Euphoria Telecom is an innovative business telephone service that offers its customers unprecedented control and automated operational efficiencies.” Source: RevenueBase Database · checked Sep 2, 2026
15	Telecomp	Strong evidence	Cushing, OK, United States	51-200	74 contacts →
	Strong evidence “TeleComp is a full-service technology company offering Enterprise VoIP phone systems, Fiber Bandwidth, Cybersecurity/Compliance and Managed Services.” Source: RevenueBase Database · checked Sep 2, 2026
16	Verve Cloud	Indirect evidence	San Diego, CA, United States	51-200	64 contacts →
	Indirect evidence “Verve is a client-focused nationwide provider of Cloud-Hosted Voice and Internet solutions for the SMB market.” Source: RevenueBase Database · checked Sep 2, 2026
17	Lightspeed Voice	Partial evidence	North Venice, FL, United States	51-200	62 contacts →
	Partial evidence “Lightspeed Voice is an AI-powered VoIP solutions provider at the forefront of transforming business communications.” Source: RevenueBase Database · checked Sep 2, 2026
18	Clarity Voice	Indirect evidence	Southfield, MI, United States	51-200	59 contacts →
	Indirect evidence “It’s no secret that staying connected and accessible is absolutely crucial in today’s business environment.” Source: RevenueBase Database · checked Sep 2, 2026
19	Monmouth Telecom	Indirect evidence	Eatontown, NJ, United States	51-200	54 contacts →
	Indirect evidence “Established in 1995 as a premier Internet Service Provider in New Jersey, Monmouth Telecom has evolved into a comprehensive provider offering cutting-edge and cost-effective…” Source: RevenueBase Database · checked Sep 2, 2026
20	West IP Communications	Partial evidence	Louisville, KY, United States	n/a	54 contacts →
	Partial evidence “West IP Communications, a wholly owned subsidiary of West Corporation, is a leading provider of cloud-based communications for the enterprise - including MPLS-based application…” Source: RevenueBase Database · checked Sep 2, 2026
21	Telesphere NOW Vonage	Indirect evidence	Holmdel, NJ, United States	1,001-5,000	49 contacts →
	Indirect evidence “Vonage Business is the leading pure-play provider of unified cloud communications.” Source: RevenueBase Database · checked Sep 2, 2026
22	Clearlyip	Indirect evidence	Appleton, WI, United States	201-500	45 contacts →
	Indirect evidence “ClearlyIP was launched with the goal of becoming an industry-leading company in telecommunications software, infrastructure, services, and cloud.” Source: RevenueBase Database · checked Sep 2, 2026
23	Teamsos Special Order Systems	Indirect evidence	Las Vegas, NV, United States	51-200	45 contacts →
	Indirect evidence “TEAMSOS provides innovative technology solutions that advance businesses and the lives of people everywhere.” Source: RevenueBase Database · checked Sep 2, 2026
24	Telquest International	Indirect evidence	Fairfield, NJ, United States	51-200	41 contacts →
	Indirect evidence “TelQuest International is dedicated to bringing the most competitive prices and the best customer service to all of our clients.” Source: RevenueBase Database · checked Sep 2, 2026
25	Shamrock Communications	Partial evidence	Katy, TX, United States	51-200	40 contacts →
	Partial evidence “Shamrock Communications is a UCaas VoIP Cloud provider located in Houston, Texas” 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 voip providers. 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 voip providers.
Partial evidence: Its own public description names part of enterprise voip providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise voip providers. 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 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 Sep 2, 2026

31.3%Verified-email coverage

27.6%Mobile-number coverage

13.9Average contacts per company

11-50Median size (employees)

4.4%Largest-city concentration · New York

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

434

11-50

463

51-200

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 voip providers, 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 voip providers”. 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 voip providers), 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 voip providers, 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, 4,501 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 voip providers by metro

Enterprise voip providers in New York45

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

RevenueBase identified 1,030 enterprise voip providers 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?

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 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.