Company lists · Data refreshed September 2026

Top 25 Communications api platforms worldwide

RevenueBase identified 865 company matches for communications api platforms worldwide as of September 2026 and tracks 32,644 professional contacts across them, including 12,381 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for communications api platforms 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 September 27, 2026. Country and city lists for communications api platforms 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 Sep 27, 2026 How this list was built
865Companies
32,644Contacts tracked
12,381Verified emails
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The 25 largest communications api platforms worldwide

Ranked by team size
Top 25 of 865 company matches for communications api platforms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBelmont, CA, United StatesHQ recorded Sep 27, 20265,001-10,0006,431 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 · Sep 27, 2026 · View company records in RevenueBase
2Exact matchHolmdel, NJ, United StatesHQ recorded Sep 27, 20261,001-5,0003,429 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 · Sep 27, 2026 · View company records in RevenueBase
3Exact matchCampbell, CA, United StatesHQ recorded Sep 27, 20261,001-5,0002,444 contacts →

Exact match

“8x8, Inc.(NASDAQ: EGHT) believes that CX limits were meant to be shattered.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchHyderabad, IndiaHQ recorded Sep 27, 20261,001-5,000700 contacts →

Exact match

“Through Tanla Platforms Limited's cloud communications technology, over global enterprises deliver billions of critical customer interactions daily – from vital banking alerts to…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchMumbai, IndiaHQ recorded Sep 27, 2026501-1,000611 contacts →

Exact match

“Route Mobile began as an idea in 2004, founded by our Managing Director, Mr Rajdip Gupta – to bring about digital disruption in communication with simplified solutions that…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchPleasant Grove, UT, United StatesHQ recorded Sep 27, 2026501-1,000606 contacts →

Exact match

“Empowering service provider growth with the world’s most trusted Intelligent Communications Fabric.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchSanta Clara, CA, United StatesHQ recorded Sep 27, 2026501-1,000516 contacts →

Exact match

“Agora (NASDAQ: API) is the global leader in real-time engagement, providing developers with simple, flexible, and powerful APIs to embed real-time conversational AI, voice, video…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchOslo, NorwayHQ recorded Sep 27, 2026501-1,000499 contacts →

Exact match

“LINK Mobility Group AS is a CPaaS provider headquarted in Oslo, Norway.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026201-500490 contacts →

Exact match

“Symphony is an AI-powered communication and technology company fueled by interconnected platforms: Messaging, Voice, Directory and Analytics.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchSingaporeHQ recorded Sep 27, 2026201-500429 contacts →

Exact match

“Knowlarity is the largest provider of cloud based communications solutions to businesses in Southeast Asia and Middle Eastern markets.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchChicago, IL, United StatesHQ recorded Sep 27, 2026501-1,000327 contacts →

Exact match

“We've moved pages.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchSan Mateo, CA, United StatesHQ recorded Sep 27, 2026201-500297 contacts →

Exact match

“Sendbird is the AI customer experience company.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchHerndon, VA, United StatesHQ recorded Sep 27, 202651-200285 contacts →

Exact match

“Ultatel delivers a powerful yet easy-to-use cloud communications suite that scales with your business-combining voice, SMS, chat, video, online fax, and contact center…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchGurugram, IndiaHQ recorded Sep 27, 2026201-500271 contacts →

Exact match

“Established in 2015, Smartping is a leading enterprise and telecommunications service provider, revolutionizing how pan-India businesses connect and engage with their audiences…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchSingaporeHQ recorded Sep 27, 2026201-500239 contacts →

Exact match

“With over 20 years of telecom expertise, Global Wavenet Pte Ltd.(Wavenet), partners with Tier-1 to Tier-3 operators across 20+ countries, delivering mission-critical customer…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchAlpharetta, GA, United StatesHQ recorded Sep 27, 202651-200237 contacts →

Exact match

“We solve a critical gap businesses face with employee to client communication, over voice and messaging.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchJaipur, IndiaHQ recorded Sep 27, 202651-200236 contacts →

Exact match

“Sarv.com: Revolutionising Customer Experience We believe communication is the backbone of every successful business.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchBoulder, CO, United StatesHQ recorded Sep 27, 202651-200225 contacts →

Exact match

“Stream helps apps build real-time experiences that scale.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchGurgaon, IndiaHQ recorded Sep 27, 2026201-500224 contacts →

Exact match

“At Acefone, we make interactions simple, powerful, and customer focused.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchZurich, SwitzerlandHQ recorded Sep 27, 2026201-500224 contacts →

Exact match

“Mitto is a leading provider of global, omnichannel communications solutions, supporting business growth with advanced customer engagement technology and messaging enablement.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchPetah Tikva, IsraelHQ recorded Sep 27, 2026201-500217 contacts →

Exact match

“MMDSmart is a leading provider of enterprise cloud-based communication solutions, helping organizations engage customers across the entire customer lifecycle.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchChicago, IL, United StatesHQ recorded Sep 27, 202651-200214 contacts →

Exact match

“For over thirty years, Fortune 500 companies in financial services, retail and hospitality, software, and wireless communications industries have relied on Vail Systems’…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchSouth Plainfield, NJ, United StatesHQ recorded Sep 27, 202651-200212 contacts →

Exact match

“Communication is the backbone of every business.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchDubai, United Arab EmiratesHQ recorded Sep 27, 2026201-500207 contacts →

Exact match

“CEQUENS is a multi-award-winning omnichannel communication solutions provider.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchPalo Alto, CA, United StatesHQ recorded Sep 27, 2026201-500194 contacts →

Exact match

“Voximplant versatile cloud platform enables business to bring interaction to a different level.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 865 communications api platforms worldwide

See the full list, filter by size, metro and specialty, and access 12,381 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Communications api platforms worldwide at a glance

As of Sep 27, 2026
37.9%Verified-email coverage
37.7Average contacts per company
11-50Median size (employees)
2.4%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
256
11-50
365
51-200
159
201-500
55
501-1,000
19
1,001-5,000
7
5,001-10,000
1
10001+
1

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 communications api platforms are linked below.
What qualifies
Company records worldwide whose business descriptions match “communications api platforms” 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 12,381 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 September 27, 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.

Communications api platforms by location

4 lists · largest first

Every Communications api platforms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “communications api platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many communications api platforms are there worldwide?

RevenueBase identified 865 company matches for communications api platforms worldwide as of September 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?

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

Which country has the most communications api platforms?

The United States leads with 191 companies, followed by India (143) and the United Kingdom (43). Every communications api platforms list by country and city is linked on this page.

Which city has the most communications api platforms?

London leads with 21 company records, followed by Singapore (19) and Mumbai (15).

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 12,381 professional contacts with verified work emails tracked across these 865 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 September 27, 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.