Company lists · Data refreshed November 2026

Top 25 Api communication providers worldwide

RevenueBase identified 651 company matches for api communication providers worldwide as of November 2026 and tracks 35,553 professional contacts across them, including 12,633 with verified work emails. The United States is the largest market and Mumbai the largest hub.

This list covers company matches for api communication providers 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 6, 2026. Country and city lists for api communication providers 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 6, 2026 How this list was built
651Companies
35,553Contacts tracked
12,633Verified emails
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The 25 largest api communication providers worldwide

Ranked by team size
Top 25 of 651 company matches for api communication providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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, United StatesHQ recorded Nov 6, 20265,001-10,0006,795 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 6, 2026 · View company records in RevenueBase
2Exact matchKanata, ON, CanadaHQ recorded Nov 6, 20261,001-5,0003,738 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 6, 2026 · View company records in RevenueBase
3Exact matchHolmdel, NJ, United StatesHQ recorded Nov 6, 20261,001-5,0003,696 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 6, 2026 · View company records in RevenueBase
4Exact matchMenlo Park, CA, United StatesHQ recorded Nov 6, 2026n/a2,483 contacts →

Exact match

“WhatsApp is a fast, simple and reliable way to talk to anyone in the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchRaleigh, United StatesHQ recorded Nov 6, 20261,001-5,0001,199 contacts →

Exact match

“Bandwidth is the universal communications platform that simplifies how businesses deliver integrated global experiences.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHyderabad, IndiaHQ recorded Nov 6, 20261,001-5,000674 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMumbai, IndiaHQ recorded Nov 6, 2026501-1,000636 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSanta Clara, CA, United StatesHQ recorded Nov 6, 2026501-1,000555 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchOslo, NorwayHQ recorded Nov 6, 2026501-1,000527 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Nov 6, 2026201-500433 contacts →

Exact match

“Founded in 2008 by veteran telecommunication entrepreneurs, Phone.com provides over businesses with comprehensive, flexible, and reliable cloud-based communication and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,000423 contacts →

Exact match

“We've moved!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchChicago, IL, United StatesHQ recorded Nov 6, 2026501-1,000326 contacts →

Exact match

“We've moved pages.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSan Mateo, CA, United StatesHQ recorded Nov 6, 2026201-500310 contacts →

Exact match

“Sendbird is the AI customer experience company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHerndon, VA, United StatesHQ recorded Nov 6, 202651-200281 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchParsippany, NJ, United StatesHQ recorded Nov 6, 2026201-500278 contacts →

Exact match

“A leading cloud-optimized solutions provider for real-time communications media, applications, and infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAlpharetta, GA, United StatesHQ recorded Nov 6, 202651-200266 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 · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSouth Jordan, UT, United StatesHQ recorded Nov 6, 2026201-500258 contacts →

Exact match

“Since 2002, CallTower has been at the forefront of transforming global communication, emerging as a leader in enterprise-class cloud communication, collaboration, and CX solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchJaipur, IndiaHQ recorded Nov 6, 2026501-1,000257 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGaithersburg, MD, United StatesHQ recorded Nov 6, 20261,001-5,000253 contacts →

Exact match

“BroadSoft, now part of Cisco, is the leading provider of software and services that enable mobile, fixed-line and cable service providers to offer Unified Communications over…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchGurgaon, IndiaHQ recorded Nov 6, 2026201-500243 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBoulder, CO, United StatesHQ recorded Nov 6, 202651-200241 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchZurich, SwitzerlandHQ recorded Nov 6, 2026201-500231 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 · Nov 6, 2026 · View company records in RevenueBase
23Exact matchPetah Tikva, IsraelHQ recorded Nov 6, 2026201-500231 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSouth Plainfield, NJ, United StatesHQ recorded Nov 6, 2026201-500212 contacts →

Exact match

“Communication is the backbone of every business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPalo Alto, CA, United StatesHQ recorded Nov 6, 2026201-500208 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 651 api communication providers worldwide

See the full list, filter by size, metro and specialty, and access 12,633 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Api communication providers worldwide at a glance

As of Nov 6, 2026
35.5%Verified-email coverage
54.6Average contacts per company
11-50Median size (employees)
2.6%Largest-city concentration · Mumbai
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
154
11-50
260
51-200
149
201-500
50
501-1,000
14
1,001-5,000
13
5,001-10,000
2
10001+
4

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 api communication providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “api communication providers” 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 12,633 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 6, 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.

Api communication providers by location

3 lists · largest first

Every Api communication providers 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 “api communication providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many api communication providers are there worldwide?

RevenueBase identified 651 company matches for api communication providers 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?

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

Which country has the most api communication providers?

The United States leads with 140 companies, followed by India (115) and the United Kingdom (37). Every api communication providers list by country and city is linked on this page.

Which city has the most api communication providers?

Mumbai leads with 17 company records, followed by Singapore (17) and Bangalore (16).

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 12,633 professional contacts with verified work emails tracked across these 651 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 6, 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.