Company lists · Data refreshed October 2026
Top 25 Voice calling api & sdk software companies worldwide
RevenueBase identified 178 company matches for voice calling api & sdk software companies worldwide as of October 2026 and tracks 3,479 professional contacts across them, including 961 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for voice calling api & sdk software 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 October 20, 2026. Country and city lists for voice calling api & sdk software 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.
The 25 largest voice calling api & sdk software companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 542 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 · Oct 20, 2026 · View company records in RevenueBase | |||||
| 2 | 236 contacts → | ||||
Exact match “At CloudTalk, we're transforming how small and growing businesses manage business calls.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 3 | 214 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 · Oct 20, 2026 · View company records in RevenueBase | |||||
| 4 | 207 contacts → | ||||
Exact match “At Hiya, we are revolutionizing the voice communication experience, making it more productive and secure.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 5 | 113 contacts → | ||||
Exact match “We believe that technology and intelligence, combined, have the power to transform the world.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 6 | 110 contacts → | ||||
Exact match “TeleCMI is a global cloud communication platform trusted by 2,500+ brands, powering over 1 million business conversations every month.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 7 | 108 contacts → | ||||
Exact match “CommPeak makes cloud-based business communication easier and more affordable, empowering people with superior quality products.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 8 | 98 contacts → | ||||
Exact match “tyntec is a cloud communications provider enabling businesses to communicate easier with their customers, workforce and machines.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 9 | 89 contacts → | ||||
Exact match “BlaBla Connect is an international calling app, available for IOS and Android users.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 10 | 81 contacts → | ||||
Exact match “Voxvalley is a pioneer in developing CPaaS,Omnichannel, VoIP softphone, sdks and SaaS-based products that are curated with extensive research on modern-day communication needs.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 11 | 80 contacts → | ||||
Exact match “AppitSimple Infotek Pvt Ltd - A Pioneer product-based IT company that has been revolutionizing & simplifying the way organizations do business since the last many years.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 12 | 68 contacts → | ||||
Exact match “Futuristic building blocks for generation-X communication" Simple programmable APIs, detailed analytics, direct carriers relationships and outstanding customer support.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 13 | 64 contacts → | ||||
Exact match “Welcome to MCUBE - Your Trusted Cloud Telephony Partner in India!” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 14 | 53 contacts → | ||||
Exact match “Six years ago, Hoiio was founded with a mission to simplify the way we communicate.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 15 | 44 contacts → | ||||
Exact match “Commio’s cloud voice and text messaging API platform enables companies to deliver rich omnichannel customer conversations at scale.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 16 | 44 contacts → | ||||
Exact match “NUACOM is a Software-as-a-Service and Telecom company that provides flexible and scalable calling solutions for businesses to deliver exceptional customer service and handle…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 17 | 44 contacts → | ||||
Exact match “Whereby offers a real-time video calling service that’s both powerful and easy to embed into your website or app.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 18 | 43 contacts → | ||||
Exact match “Kavenegar is a company which as same other companies by a simple idea.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 19 | 42 contacts → | ||||
Exact match “Nền tảng lập trình giao tiếp (Communication APIs) được tin dùng bởi doanh nghiệp Sứ mệnh của Stringee là mang đến các giải pháp phần mềm nhằm số hóa quy trình giao tiếp và chăm…” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 20 | 40 contacts → | ||||
Exact match “Daily is a real-time voice, video, and AI platform for developers.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 21 | 40 contacts → | ||||
Exact match “Ringg AI is the #1 conversation orchestration platform for enterprises.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 22 | 40 contacts → | ||||
Exact match “Effebot provides auto-calls to improve CX and drive costs.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 23 | 34 contacts → | ||||
Exact match “QuickBlox is a leading cloud communication platform helping businesses bring AI-driven chat, video, and automation into their digital products-quickly, securely, and at scale.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 24 | 28 contacts → | ||||
Exact match “On March 1, 2021, CounterPath was acquired by Alianza, Inc.” Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase | |||||
| 25 | 28 contacts → | ||||
Exact match “REVOLUTIONIZING COMMUNICATIONS Acrobits stands as a pioneer in the VoIP and communications industry, revolutionizing mobile connectivity by launching the world's first publicly…” Recorded in the RevenueBase company graph · Oct 20, 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 “voice calling api & sdk software 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 178 voice calling api & sdk software companies worldwide
See the full list, filter by size, metro and specialty, and access 961 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Voice calling api & sdk software companies worldwide at a glance
As of Oct 20, 2026Companies by employee count
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 voice calling api & sdk software companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “voice calling api & sdk software 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 961 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 October 20, 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.
Voice calling api & sdk software companies by location
2 lists · largest firstEvery Voice calling api & sdk software companies 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 “voice calling api & sdk software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many voice calling api & sdk software companies are there worldwide?
RevenueBase identified 178 company matches for voice calling api & sdk software companies worldwide as of October 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?
AGORA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most voice calling api & sdk software companies?
The United States leads with 44 companies, followed by India (25). Every voice calling api & sdk software companies list by country and city is linked on this page.
Which city has the most voice calling api & sdk software companies?
London leads with 7 company records, followed by Bangalore (5) and Paris (5).
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 961 professional contacts with verified work emails tracked across these 178 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 October 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 178 voice calling api & sdk software companies worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 voice calling api & sdk software companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 178 matching company records for voice calling api & sdk software companies worldwide, with 3,479 tracked contacts and 961 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 voice calling api & sdk software companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  AGORAagora.ioHQ: Santa Clara, CA, United StatesReported employees: 501-1,000 | Santa Clara, CA, United States | 501-1,000 | Exact match | 542 contacts → |
“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 description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Cloudtalkcloudtalk.ioHQ: Toronto, ON, CanadaReported employees: 201-500 | Toronto, ON, Canada | 201-500 | Exact match | 236 contacts → |
“At CloudTalk, we're transforming how small and growing businesses manage business calls.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Vail Systemsvailsys.comHQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 214 contacts → |
“For over thirty years, Fortune 500 companies in financial services, retail and hospitality, software, and wireless communications industries have relied on Vail Systems’…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Hiya INChiya.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 207 contacts → |
“At Hiya, we are revolutionizing the voice communication experience, making it more productive and secure.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  3c Plus3cplusnow.comHQ: Guarapuava, BrazilReported employees: 51-200 | Guarapuava, Brazil | 51-200 | Exact match | 113 contacts → |
“We believe that technology and intelligence, combined, have the power to transform the world.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Telecmitelecmi.comHQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 110 contacts → |
“TeleCMI is a global cloud communication platform trusted by 2,500+ brands, powering over 1 million business conversations every month.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Commpeakcommpeak.com HQ: Wan Chai, Hong KongReported employees: 51-200 | Wan Chai, Hong Kong | 51-200 | Exact match | 108 contacts → |
“CommPeak makes cloud-based business communication easier and more affordable, empowering people with superior quality products.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Tyntectyntec.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 98 contacts → |
“tyntec is a cloud communications provider enabling businesses to communicate easier with their customers, workforce and machines.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Blabla Connectblablaconnect.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 89 contacts → |
“BlaBla Connect is an international calling app, available for IOS and Android users.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Voxvalley Technologies INCvoxvalley.comHQ: Gurnee, IL, United StatesReported employees: 51-200 | Gurnee, IL, United States | 51-200 | Exact match | 81 contacts → |
“Voxvalley is a pioneer in developing CPaaS,Omnichannel, VoIP softphone, sdks and SaaS-based products that are curated with extensive research on modern-day communication needs.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Appitsimple Infotek Pvt. LTDappitsimple.com HQ: Sarkhej, IndiaReported employees: 51-200 | Sarkhej, India | 51-200 | Exact match | 80 contacts → |
“AppitSimple Infotek Pvt Ltd - A Pioneer product-based IT company that has been revolutionizing & simplifying the way organizations do business since the last many years.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Tubelight Communications Limitedtubelightcommunications.comHQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 68 contacts → |
“Futuristic building blocks for generation-X communication" Simple programmable APIs, detailed analytics, direct carriers relationships and outstanding customer support.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  MCUBEmcube.comHQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 64 contacts → |
“Welcome to MCUBE - Your Trusted Cloud Telephony Partner in India!” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  HOIIOhoiio.comHQ: SingaporeReported employees: 11-50 | Singapore | 11-50 | Exact match | 53 contacts → |
“Six years ago, Hoiio was founded with a mission to simplify the way we communicate.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Commiocommio.comHQ: Raleigh, NC, United StatesReported employees: 51-200 | Raleigh, NC, United States | 51-200 | Exact match | 44 contacts → |
“Commio’s cloud voice and text messaging API platform enables companies to deliver rich omnichannel customer conversations at scale.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Nuacomnuacom.com HQ: Maynooth, IrelandReported employees: 51-200 | Maynooth, Ireland | 51-200 | Exact match | 44 contacts → |
“NUACOM is a Software-as-a-Service and Telecom company that provides flexible and scalable calling solutions for businesses to deliver exceptional customer service and handle…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Wherebywhereby.com HQ: Måløy, NorwayReported employees: 11-50 | Måløy, Norway | 11-50 | Exact match | 44 contacts → |
“Whereby offers a real-time video calling service that’s both powerful and easy to embed into your website or app.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Kavenegarkavenegar.com HQ: Tehran, IranReported employees: 51-200 | Tehran, Iran | 51-200 | Exact match | 43 contacts → |
“Kavenegar is a company which as same other companies by a simple idea.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Stringee Vietnamstringee.comHQ: Hanoi, VietnamReported employees: 201-500 | Hanoi, Vietnam | 201-500 | Exact match | 42 contacts → |
“Nền tảng lập trình giao tiếp (Communication APIs) được tin dùng bởi doanh nghiệp Sứ mệnh của Stringee là mang đến các giải pháp phần mềm nhằm số hóa quy trình giao tiếp và chăm…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | DAILYdaily.co HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 40 contacts → |
“Daily is a real-time voice, video, and AI platform for developers.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Ringg AIringg.aiHQ: Bangalore, IndiaReported employees: 11-50 | Bangalore, India | 11-50 | Exact match | 40 contacts → |
“Ringg AI is the #1 conversation orchestration platform for enterprises.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Effeboteffebot.comHQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 40 contacts → |
“Effebot provides auto-calls to improve CX and drive costs.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Quickbloxquickblox.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 34 contacts → |
“QuickBlox is a leading cloud communication platform helping businesses bring AI-driven chat, video, and automation into their digital products-quickly, securely, and at scale.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Counterpath, An Alianza Companycounterpath.comHQ: Vancouver, BC, CanadaReported employees: 51-200 | Vancouver, BC, Canada | 51-200 | Exact match | 28 contacts → |
“On March 1, 2021, CounterPath was acquired by Alianza, Inc.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Acrobitsacrobits.net HQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 28 contacts → |
“REVOLUTIONIZING COMMUNICATIONS Acrobits stands as a pioneer in the VoIP and communications industry, revolutionizing mobile connectivity by launching the world's first publicly…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 178 company matches
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Voice calling api & sdk software companies: dataset insights
October 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
177 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 178 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Voice calling api & sdk software companies by location
2 lists · largest firstEvery Voice calling api & sdk software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for voice calling api & sdk software companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many voice calling api & sdk software companies did RevenueBase find worldwide?
The saved snapshot records 178 matching company records, 3,479 tracked contacts and 961 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 voice calling api & sdk software companies worldwide. Snapshot: October 20, 2026. https://revenuebase.ai/companies/browse/voice-calling-api-sdk-software-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 voice calling api & sdk software companies worldwide
RevenueBase records 178 matching company records for voice calling api & sdk software companies worldwide, with 3,479 tracked contacts and 961 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 voice calling api & sdk software companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | AGORAagora.io HQ: Santa Clara, CA, United StatesReported employees: 501-1,000 | Santa Clara, CA, United States | 501-1,000 | Exact match | 542 contacts → |
“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 description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Cloudtalkcloudtalk.io HQ: Toronto, ON, CanadaReported employees: 201-500 | Toronto, ON, Canada | 201-500 | Exact match | 236 contacts → |
“At CloudTalk, we're transforming how small and growing businesses manage business calls.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Vail Systemsvailsys.com HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 214 contacts → |
“For over thirty years, Fortune 500 companies in financial services, retail and hospitality, software, and wireless communications industries have relied on Vail Systems’…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Hiya INChiya.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 207 contacts → |
“At Hiya, we are revolutionizing the voice communication experience, making it more productive and secure.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 3c Plus3cplusnow.com HQ: Guarapuava, BrazilReported employees: 51-200 | Guarapuava, Brazil | 51-200 | Exact match | 113 contacts → |
“We believe that technology and intelligence, combined, have the power to transform the world.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Telecmitelecmi.com HQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 110 contacts → |
“TeleCMI is a global cloud communication platform trusted by 2,500+ brands, powering over 1 million business conversations every month.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Commpeakcommpeak.com HQ: Wan Chai, Hong KongReported employees: 51-200 | Wan Chai, Hong Kong | 51-200 | Exact match | 108 contacts → |
“CommPeak makes cloud-based business communication easier and more affordable, empowering people with superior quality products.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Tyntectyntec.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 98 contacts → |
“tyntec is a cloud communications provider enabling businesses to communicate easier with their customers, workforce and machines.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Blabla Connectblablaconnect.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 89 contacts → |
“BlaBla Connect is an international calling app, available for IOS and Android users.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Voxvalley Technologies INCvoxvalley.com HQ: Gurnee, IL, United StatesReported employees: 51-200 | Gurnee, IL, United States | 51-200 | Exact match | 81 contacts → |
“Voxvalley is a pioneer in developing CPaaS,Omnichannel, VoIP softphone, sdks and SaaS-based products that are curated with extensive research on modern-day communication needs.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Appitsimple Infotek Pvt. LTDappitsimple.com HQ: Sarkhej, IndiaReported employees: 51-200 | Sarkhej, India | 51-200 | Exact match | 80 contacts → |
“AppitSimple Infotek Pvt Ltd - A Pioneer product-based IT company that has been revolutionizing & simplifying the way organizations do business since the last many years.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Tubelight Communications Limitedtubelightcommunications.com HQ: Mumbai, IndiaReported employees: 51-200 | Mumbai, India | 51-200 | Exact match | 68 contacts → |
“Futuristic building blocks for generation-X communication" Simple programmable APIs, detailed analytics, direct carriers relationships and outstanding customer support.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | MCUBEmcube.com HQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 64 contacts → |
“Welcome to MCUBE - Your Trusted Cloud Telephony Partner in India!” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HOIIOhoiio.com HQ: SingaporeReported employees: 11-50 | Singapore | 11-50 | Exact match | 53 contacts → |
“Six years ago, Hoiio was founded with a mission to simplify the way we communicate.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Commiocommio.com HQ: Raleigh, NC, United StatesReported employees: 51-200 | Raleigh, NC, United States | 51-200 | Exact match | 44 contacts → |
“Commio’s cloud voice and text messaging API platform enables companies to deliver rich omnichannel customer conversations at scale.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Nuacomnuacom.com HQ: Maynooth, IrelandReported employees: 51-200 | Maynooth, Ireland | 51-200 | Exact match | 44 contacts → |
“NUACOM is a Software-as-a-Service and Telecom company that provides flexible and scalable calling solutions for businesses to deliver exceptional customer service and handle…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Wherebywhereby.com HQ: Måløy, NorwayReported employees: 11-50 | Måløy, Norway | 11-50 | Exact match | 44 contacts → |
“Whereby offers a real-time video calling service that’s both powerful and easy to embed into your website or app.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Kavenegarkavenegar.com HQ: Tehran, IranReported employees: 51-200 | Tehran, Iran | 51-200 | Exact match | 43 contacts → |
“Kavenegar is a company which as same other companies by a simple idea.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Stringee Vietnamstringee.com HQ: Hanoi, VietnamReported employees: 201-500 | Hanoi, Vietnam | 201-500 | Exact match | 42 contacts → |
“Nền tảng lập trình giao tiếp (Communication APIs) được tin dùng bởi doanh nghiệp Sứ mệnh của Stringee là mang đến các giải pháp phần mềm nhằm số hóa quy trình giao tiếp và chăm…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | DAILYdaily.co HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 40 contacts → |
“Daily is a real-time voice, video, and AI platform for developers.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ringg AIringg.ai HQ: Bangalore, IndiaReported employees: 11-50 | Bangalore, India | 11-50 | Exact match | 40 contacts → |
“Ringg AI is the #1 conversation orchestration platform for enterprises.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Effeboteffebot.com HQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 40 contacts → |
“Effebot provides auto-calls to improve CX and drive costs.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Quickbloxquickblox.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 34 contacts → |
“QuickBlox is a leading cloud communication platform helping businesses bring AI-driven chat, video, and automation into their digital products-quickly, securely, and at scale.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Counterpath, An Alianza Companycounterpath.com HQ: Vancouver, BC, CanadaReported employees: 51-200 | Vancouver, BC, Canada | 51-200 | Exact match | 28 contacts → |
“On March 1, 2021, CounterPath was acquired by Alianza, Inc.” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Acrobitsacrobits.net HQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 28 contacts → |
“REVOLUTIONIZING COMMUNICATIONS Acrobits stands as a pioneer in the VoIP and communications industry, revolutionizing mobile connectivity by launching the world's first publicly…” Recorded description excerpt · October 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 178 company matches
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Voice calling api & sdk software companies: dataset insights
October 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
177 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 178 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Voice calling api & sdk software companies by location
2 lists · largest firstEvery Voice calling api & sdk software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for voice calling api & sdk software companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many voice calling api & sdk software companies did RevenueBase find worldwide?
The saved snapshot records 178 matching company records, 3,479 tracked contacts and 961 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 voice calling api & sdk software companies worldwide. Snapshot: October 20, 2026. https://revenuebase.ai/companies/browse/voice-calling-api-sdk-software-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗