Company lists · Data refreshed November 2026

Top 25 Enterprise voice solutions companies worldwide

Name: Enterprise voice solutions companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 11,642 companies tracked

RevenueBase identified 11,642 company matches for enterprise voice solutions companies worldwide as of November 2026 and tracks 249,345 professional contacts across them, including 59,486 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for enterprise voice solutions companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026. Country and city lists for enterprise voice solutions companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Nov 5, 2026 How this list was built

11,642Companies

249,345Contacts tracked

59,486Verified emails

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The 25 largest enterprise voice solutions companies worldwide

Ranked by team size

Top 25 of 11,642 company matches for enterprise voice solutions companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	AVAYA	Exact match	Morristown, United StatesHQ recorded Nov 5, 2026	5,001-10,000	11,344 contacts →
	Exact match “At Avaya, we give our customers the freedom to take their business in the directions that benefit them most.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Windstream	Exact match	Little Rock, AR, United StatesHQ recorded Nov 5, 2026	10001+	7,649 contacts →
	Exact match “Windstream and Uniti have merged - Please follow us at Uniti Group, Inc.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Vodafone Business	Exact match	London, United KingdomHQ recorded Nov 5, 2026	10001+	6,808 contacts →
	Exact match “Vodafone Business is part of the Vodafone Group.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Ringcentral	Exact match	Belmont, United StatesHQ recorded Nov 5, 2026	5,001-10,000	6,795 contacts →
	Exact match “RingCentral, Inc.(NYSE: RNG) is a global leader in AI–powered customer engagement, delivering an integrated platform for business phone, SMS, contact center, workforce engagement…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Cable ONE	Exact match	Phoenix, AZ, United StatesHQ recorded Nov 5, 2026	1,001-5,000	5,608 contacts →
	Exact match “Cable One Business offers scalable, reliable, and efficient solutions so that the businesses we serve can be successful.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Spectrum Business	Exact match	Stamford, CT, United StatesHQ recorded Nov 5, 2026	10001+	4,135 contacts →
	Exact match “Our story starts with understanding that connectivity powers everything you do, and we make it stronger.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	MITEL	Exact match	Kanata, ON, CanadaHQ recorded Nov 5, 2026	1,001-5,000	3,738 contacts →
	Exact match “Powering more than 2 billion connections every day, Mitel helps businesses connect, collaborate and take care of customers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Vonage	Exact match	Holmdel, NJ, United StatesHQ recorded Nov 5, 2026	1,001-5,000	3,696 contacts →
	Exact match “We’re making communications more flexible, intelligent, and personal, to help enterprises the world over stay ahead.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Airtel Business	Exact match	Gurgaon, IndiaHQ recorded Nov 5, 2026	10001+	2,862 contacts →
	Exact match “The B2B arm of Bharti Airtel, we are India's leading provider of secure and reliable connectivity, technology, and communications solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	TCS	Exact match	Jefferson City, MO, United StatesHQ recorded Nov 5, 2026	n/a	2,787 contacts →
	Exact match “With In-store media solutions to help you connect with your customers and grow your business, TCS delivers communication solutions that will take your business to the next level.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	GOTO	Exact match	Boston, MA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,412 contacts →
	Exact match “As the leader in cloud communications and IT, GoTo addresses real-world challenges with practical innovations and a customer-first mindset.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Granite Telecommunications	Exact match	Quincy, MA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,395 contacts →
	Exact match “Granite is a dynamic and rapidly growing company serving the exciting and demanding Telecommunications market.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Unifique	Exact match	Timbó, BrazilHQ recorded Nov 5, 2026	1,001-5,000	1,962 contacts →
	Exact match “Somos uma empresa de telecomunicações com 28 anos de atuação.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Polycom	Exact match	San Jose, CA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,954 contacts →
	Exact match “Plantronics and Polycom are now Poly.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	ASCOM	Exact match	Baar, SwitzerlandHQ recorded Nov 5, 2026	1,001-5,000	1,836 contacts →
	Exact match “Our vision is a world where the right information moves people forward.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	GAMMA	Exact match	London, United KingdomHQ recorded Nov 5, 2026	1,001-5,000	1,631 contacts →
	Exact match “Gamma Communications is a leading provider of technology-based communication solutions across Europe.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Tulip Telecom	Exact match	New Delhi, IndiaHQ recorded Nov 5, 2026	1,001-5,000	1,601 contacts →
	Exact match “Tulip Telecom Ltd.(BSE: 532691/NSE: TULIP) is India’s leading Enterprise Communications Service provider.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Audiocodes	Exact match	Or Yehuda, IsraelHQ recorded Nov 5, 2026	1,001-5,000	1,471 contacts →
	Exact match “AudioCodes Ltd.(NASDAQ, TASE: AUDC) is a global leader in enterprise voice technology and voice AI innovation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Intermedia Intelligent Communications	Exact match	Sunnyvale, CA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,411 contacts →
	Exact match “Intermedia is the cloud communications company that helps over businesses connect better, from wherever, through our AI-powered platform that includes voice, video conferencing…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Bandwidth INC	Exact match	Raleigh, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,199 contacts →
	Exact match “Bandwidth is the universal communications platform that simplifies how businesses deliver integrated global experiences.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	XO Communications	Exact match	Herndon, VA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,124 contacts →
	Exact match “XO Communications is a Verizon company that provides the technology that helps business and wholesale customers compete in a hyper-connected economy.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Integra	Exact match	Vancouver, WA, United StatesHQ recorded Nov 5, 2026	501-1,000	1,123 contacts →
	Exact match “Integra is Allstream.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Multinet Pakistan Private Limited	Exact match	Karachi, PakistanHQ recorded Nov 5, 2026	1,001-5,000	979 contacts →
	Exact match “Multinet Pakistan is one of the premier information and communication solution providers for leading enterprises in the region.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Mundivox Communications	Exact match	São Paulo, BrazilHQ recorded Nov 5, 2026	501-1,000	916 contacts →
	Exact match “Com mais de 25 anos de experiência, a Mundivox é uma operadora licenciada pela Anatel, especializada em soluções integradas de comunicação para o mercado corporativo.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Asiatech CO	Exact match	Tehran, IranHQ recorded Nov 5, 2026	501-1,000	824 contacts →
	Exact match “Data Transmission company of Asiatech (#asiatech) was established in 2003 to provide IT-based services and obtained PAP license from the Communications Regulatory Authority (CRA)…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “enterprise voice solutions companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 11,642 enterprise voice solutions companies worldwide

See the full list, filter by size, metro and specialty, and access 59,486 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Enterprise voice solutions companies worldwide at a glance

As of Nov 5, 2026

23.9%Verified-email coverage

21.4Average contacts per company

11-50Median size (employees)

1.9%Largest-city concentration · London

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

5,210

11-50

4,602

51-200

1,239

201-500

266

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for enterprise voice solutions companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “enterprise voice solutions companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 59,486 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Enterprise voice solutions companies by location

68 lists · largest first

Every Enterprise voice solutions companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “enterprise voice solutions companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many enterprise voice solutions companies are there worldwide?

RevenueBase identified 11,642 company matches for enterprise voice solutions companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

AVAYA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most enterprise voice solutions companies?

The United States leads with 3,235 companies, followed by the United Kingdom (1,290) and Brazil (608). Every enterprise voice solutions companies list by country and city is linked on this page.

Which city has the most enterprise voice solutions companies?

London leads with 221 company records, followed by Sao Paulo (163) and New York (101).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 59,486 professional contacts with verified work emails tracked across these 11,642 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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 SmartSearch, 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.