Company lists · Data refreshed September 2026
Top 25 Phone system software vendors worldwide
RevenueBase identified 674 company matches for phone system software vendors worldwide as of September 2026 and tracks 7,989 professional contacts across them, including 1,659 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers company matches for phone system software vendors 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 29, 2026. Country and city lists for phone system software vendors 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 phone system software vendors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 527 contacts → | ||||
Exact match “Telecom Applications are one of the fastest-changing technologies of today.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 319 contacts → | ||||
Exact match “Keyyo développe de nouveaux usages de communication pour les entreprises, notamment avec la voix sur IP.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 3 | 273 contacts → | ||||
Exact match “A Handphone Telecomunicações é uma indústria, fabricante de equipamentos para Telecomunicações, tais como sistemas PABX de pequeno, médio e grande porte, sistemas Call Center's…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 4 | 207 contacts → | ||||
Exact match “Khomp is a Brazilian company, based in Santa Catarina, which provides leading edge technology for the development of convergence solutions between computer and telephony, in the…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 5 | 178 contacts → | ||||
Exact match “Манго Телеком» – разработчик облачных решений для бизнес-коммуникаций.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 154 contacts → | ||||
Exact match “3CX is the developer of an open standards communications solution which innovates business connectivity and collaboration, replacing proprietary PBXs.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 139 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 · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 133 contacts → | ||||
Exact match “Unimax believes that administering PBX and voice messaging systems can be far less complex and costly, while delivering better service levels.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 121 contacts → | ||||
Exact match “Founded in 1987, Estech Systems (ESI), a Crexendo® company, delivers high-performance phone systems designed for growing businesses.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 112 contacts → | ||||
Exact match “HiHi is a leading video-enabled business phone.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 11 | 91 contacts → | ||||
Exact match “Alliance Global is a cloud-based business phone system provider exclusively for organizations that require professional communication features.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 76 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 13 | 73 contacts → | ||||
Exact match “About Snom Technology GmbH Founded in 1997 and headquartered in Berlin Germany, Snom is a German multinational corporation and the world’s first and leading brand of professional…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 14 | 68 contacts → | ||||
Exact match “Business Class Phone Systems & Service with support & functionality to exceed your communication needs.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 66 contacts → | ||||
Exact match “With over a million installed licenses, C4B Com For Business AG is a market leader in CTI and Unified Communications software.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 16 | 60 contacts → | ||||
Exact match “Vi kæmper for de små virksomheder.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 58 contacts → | ||||
Exact match “Digium®, Inc.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 55 contacts → | ||||
Exact match “Bicom Systems is an international software telecommunication company.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 19 | 54 contacts → | ||||
Exact match “Six years ago, Hoiio was founded with a mission to simplify the way we communicate.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 53 contacts → | ||||
Exact match “VOXO offers phone systems and call center software for businesses with a focus on simplicity and customer satisfaction.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 52 contacts → | ||||
Exact match “Superfone is India's 1st Business Phone Number built to help small businesses manage their customer interactions better and grow their business.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 51 contacts → | ||||
Exact match “ITooLabs is global software vendor with own product ITooLabs Communications Server.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 49 contacts → | ||||
Exact match “TeleWare design software to help businesses communicate better with their customers and employees by routing communications more effectively.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 47 contacts → | ||||
Exact match “A Total IP é uma empresa líder em prover soluções integradas de telefonia para call centers.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 40 contacts → | ||||
Exact match “RedT is a Rio de Janeiro based company commited to develop and deploy communication solutions mainly using VoIP solutions.” Recorded in the RevenueBase company graph · Sep 29, 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 “phone system software vendors”. 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 674 phone system software vendors worldwide
See the full list, filter by size, metro and specialty, and access 1,659 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Phone system software vendors worldwide at a glance
As of Sep 29, 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 phone system software vendors are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “phone system software vendors” 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 1,659 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 29, 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.
Phone system software vendors by location
3 lists · largest firstEvery Phone system software vendors 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 “phone system software vendors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many phone system software vendors are there worldwide?
RevenueBase identified 674 company matches for phone system software vendors 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?
Deepija Telecom PVT LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most phone system software vendors?
The United States leads with 169 companies, followed by Brazil (40) and the United Kingdom (30). Every phone system software vendors list by country and city is linked on this page.
Which city has the most phone system software vendors?
Sao Paulo leads with 12 company records, followed by London (8) and Istanbul (7).
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 1,659 professional contacts with verified work emails tracked across these 674 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 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 674 phone system software vendors worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
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 phone system software vendors worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 674 matching company records for phone system software vendors worldwide, with 7,989 tracked contacts and 1,659 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: September 29, 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 phone system software vendors 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 |  Deepija Telecom PVT LTDdeepijatel.comHQ: Hyderabad, IndiaReported employees: 201-500 | Hyderabad, India | 201-500 | Exact match | 527 contacts → |
“Telecom Applications are one of the fastest-changing technologies of today.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  KEYYOkeyyo.comHQ: Clichy, FranceReported employees: 201-500 | Clichy, France | 201-500 | Exact match | 319 contacts → |
“Keyyo développe de nouveaux usages de communication pour les entreprises, notamment avec la voix sur IP.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Handphone Telecomunicaçõeshandphone.com.br HQ: Osasco, BrazilReported employees: 201-500 | Osasco, Brazil | 201-500 | Exact match | 273 contacts → |
“A Handphone Telecomunicações é uma indústria, fabricante de equipamentos para Telecomunicações, tais como sistemas PABX de pequeno, médio e grande porte, sistemas Call Center's…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  KHOMPkhomp.comHQ: Florianópolis, BrazilReported employees: 201-500 | Florianópolis, Brazil | 201-500 | Exact match | 207 contacts → |
“Khomp is a Brazilian company, based in Santa Catarina, which provides leading edge technology for the development of convergence solutions between computer and telephony, in the…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Mango Telecommango-office.ru HQ: Moscow, RussiaReported employees: 201-500 | Moscow, Russia | 201-500 | Exact match | 178 contacts → |
“Манго Телеком» – разработчик облачных решений для бизнес-коммуникаций.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  3cx3cx.comHQ: Nicosia, CyprusReported employees: 51-200 | Nicosia, Cyprus | 51-200 | Exact match | 154 contacts → |
“3CX is the developer of an open standards communications solution which innovates business connectivity and collaboration, replacing proprietary PBXs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Appitsimple Infotek Pvt. LTDappitsimple.com HQ: Sarkhej, IndiaReported employees: 51-200 | Sarkhej, India | 51-200 | Exact match | 139 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 · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Unimaxunimax.comHQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 133 contacts → |
“Unimax believes that administering PBX and voice messaging systems can be far less complex and costly, while delivering better service levels.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Estech Systems, Inc. ESIesi-estech.comHQ: Plano, TX, United StatesReported employees: 51-200 | Plano, TX, United States | 51-200 | Exact match | 121 contacts → |
“Founded in 1987, Estech Systems (ESI), a Crexendo® company, delivers high-performance phone systems designed for growing businesses.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  HIHIhihi.co.ukHQ: Christchurch, United KingdomReported employees: 11-50 | Christchurch, United Kingdom | 11-50 | Exact match | 112 contacts → |
“HiHi is a leading video-enabled business phone.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Alliance Global Communications LLCalliancecomms.comHQ: Plainsboro, NJ, United StatesReported employees: 51-200 | Plainsboro, NJ, United States | 51-200 | Exact match | 91 contacts → |
“Alliance Global is a cloud-based business phone system provider exclusively for organizations that require professional communication features.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Hodusofthodusoft.comHQ: Ahmedabad, IndiaReported employees: 51-200 | Ahmedabad, India | 51-200 | Exact match | 76 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Snom Technology Gmbhsnom.com HQ: Berlin, GermanyReported employees: 201-500 | Berlin, Germany | 201-500 | Exact match | 73 contacts → |
“About Snom Technology GmbH Founded in 1997 and headquartered in Berlin Germany, Snom is a German multinational corporation and the world’s first and leading brand of professional…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Unified Global Solutions LLCunifiedglobalsolutions.netHQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 68 contacts → |
“Business Class Phone Systems & Service with support & functionality to exceed your communication needs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  C4b COM For Business AGc4b.comHQ: Germering, GermanyReported employees: 51-200 | Germering, Germany | 51-200 | Exact match | 66 contacts → |
“With over a million installed licenses, C4B Com For Business AG is a market leader in CTI and Unified Communications software.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Relatelrelatel.dkHQ: København Sv, DenmarkReported employees: 51-200 | København Sv, Denmark | 51-200 | Exact match | 60 contacts → |
“Vi kæmper for de små virksomheder.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Digiumdigium.com HQ: Huntsville, AL, United StatesReported employees: 51-200 | Huntsville, AL, United States | 51-200 | Exact match | 58 contacts → |
“Digium®, Inc.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Bicom Systems - BAbicomsystems.comHQ: Zenica, Bosnia and HerzegovinaReported employees: 51-200 | Zenica, Bosnia and Herzegovina | 51-200 | Exact match | 55 contacts → |
“Bicom Systems is an international software telecommunication company.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  HOIIOhoiio.comHQ: SingaporeReported employees: 11-50 | Singapore | 11-50 | Exact match | 54 contacts → |
“Six years ago, Hoiio was founded with a mission to simplify the way we communicate.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | VOXOvoxo.co HQ: Hattiesburg, MS, United StatesReported employees: 11-50 | Hattiesburg, MS, United States | 11-50 | Exact match | 53 contacts → |
“VOXO offers phone systems and call center software for businesses with a focus on simplicity and customer satisfaction.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Superfonesuperfone.inHQ: Bangalore, IndiaReported employees: 11-50 | Bangalore, India | 11-50 | Exact match | 52 contacts → |
“Superfone is India's 1st Business Phone Number built to help small businesses manage their customer interactions better and grow their business.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Itoolabsitoolabs.com HQ: Tula, United KingdomReported employees: 51-200 | Tula, United Kingdom | 51-200 | Exact match | 51 contacts → |
“ITooLabs is global software vendor with own product ITooLabs Communications Server.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Teleware PLCteleware.comHQ: Easingwold, United KingdomReported employees: 51-200 | Easingwold, United Kingdom | 51-200 | Exact match | 49 contacts → |
“TeleWare design software to help businesses communicate better with their customers and employees by routing communications more effectively.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Total IP IAtotalip.com.brHQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 47 contacts → |
“A Total IP é uma empresa líder em prover soluções integradas de telefonia para call centers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Redt Telecomredt.cloudHQ: Petrópolis, BrazilReported employees: 51-200 | Petrópolis, Brazil | 51-200 | Exact match | 40 contacts → |
“RedT is a Rio de Janeiro based company commited to develop and deploy communication solutions mainly using VoIP solutions.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 674 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Phone system software vendors: dataset insights
September 29, 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
672 records in the displayed employee bands.
2 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 674 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: September 29, 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 ↗
Phone system software vendors by location
3 lists · largest firstEvery Phone system software vendors 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 phone system software vendors?
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 phone system software vendors did RevenueBase find worldwide?
The saved snapshot records 674 matching company records, 7,989 tracked contacts and 1,659 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: September 29, 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.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 phone system software vendors worldwide. Snapshot: September 29, 2026. https://revenuebase.ai/companies/browse/phone-system-software-vendors.
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 phone system software vendors worldwide
RevenueBase records 674 matching company records for phone system software vendors worldwide, with 7,989 tracked contacts and 1,659 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: September 29, 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 phone system software vendors 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 | Deepija Telecom PVT LTDdeepijatel.com HQ: Hyderabad, IndiaReported employees: 201-500 | Hyderabad, India | 201-500 | Exact match | 527 contacts → |
“Telecom Applications are one of the fastest-changing technologies of today.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | KEYYOkeyyo.com HQ: Clichy, FranceReported employees: 201-500 | Clichy, France | 201-500 | Exact match | 319 contacts → |
“Keyyo développe de nouveaux usages de communication pour les entreprises, notamment avec la voix sur IP.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Handphone Telecomunicaçõeshandphone.com.br HQ: Osasco, BrazilReported employees: 201-500 | Osasco, Brazil | 201-500 | Exact match | 273 contacts → |
“A Handphone Telecomunicações é uma indústria, fabricante de equipamentos para Telecomunicações, tais como sistemas PABX de pequeno, médio e grande porte, sistemas Call Center's…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | KHOMPkhomp.com HQ: Florianópolis, BrazilReported employees: 201-500 | Florianópolis, Brazil | 201-500 | Exact match | 207 contacts → |
“Khomp is a Brazilian company, based in Santa Catarina, which provides leading edge technology for the development of convergence solutions between computer and telephony, in the…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Mango Telecommango-office.ru HQ: Moscow, RussiaReported employees: 201-500 | Moscow, Russia | 201-500 | Exact match | 178 contacts → |
“Манго Телеком» – разработчик облачных решений для бизнес-коммуникаций.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 3cx3cx.com HQ: Nicosia, CyprusReported employees: 51-200 | Nicosia, Cyprus | 51-200 | Exact match | 154 contacts → |
“3CX is the developer of an open standards communications solution which innovates business connectivity and collaboration, replacing proprietary PBXs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Appitsimple Infotek Pvt. LTDappitsimple.com HQ: Sarkhej, IndiaReported employees: 51-200 | Sarkhej, India | 51-200 | Exact match | 139 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 · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Unimaxunimax.com HQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 133 contacts → |
“Unimax believes that administering PBX and voice messaging systems can be far less complex and costly, while delivering better service levels.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Estech Systems, Inc. ESIesi-estech.com HQ: Plano, TX, United StatesReported employees: 51-200 | Plano, TX, United States | 51-200 | Exact match | 121 contacts → |
“Founded in 1987, Estech Systems (ESI), a Crexendo® company, delivers high-performance phone systems designed for growing businesses.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HIHIhihi.co.uk HQ: Christchurch, United KingdomReported employees: 11-50 | Christchurch, United Kingdom | 11-50 | Exact match | 112 contacts → |
“HiHi is a leading video-enabled business phone.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Alliance Global Communications LLCalliancecomms.com HQ: Plainsboro, NJ, United StatesReported employees: 51-200 | Plainsboro, NJ, United States | 51-200 | Exact match | 91 contacts → |
“Alliance Global is a cloud-based business phone system provider exclusively for organizations that require professional communication features.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Hodusofthodusoft.com HQ: Ahmedabad, IndiaReported employees: 51-200 | Ahmedabad, India | 51-200 | Exact match | 76 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Snom Technology Gmbhsnom.com HQ: Berlin, GermanyReported employees: 201-500 | Berlin, Germany | 201-500 | Exact match | 73 contacts → |
“About Snom Technology GmbH Founded in 1997 and headquartered in Berlin Germany, Snom is a German multinational corporation and the world’s first and leading brand of professional…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Unified Global Solutions LLCunifiedglobalsolutions.net HQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 68 contacts → |
“Business Class Phone Systems & Service with support & functionality to exceed your communication needs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | C4b COM For Business AGc4b.com HQ: Germering, GermanyReported employees: 51-200 | Germering, Germany | 51-200 | Exact match | 66 contacts → |
“With over a million installed licenses, C4B Com For Business AG is a market leader in CTI and Unified Communications software.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Relatelrelatel.dk HQ: København Sv, DenmarkReported employees: 51-200 | København Sv, Denmark | 51-200 | Exact match | 60 contacts → |
“Vi kæmper for de små virksomheder.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Digiumdigium.com HQ: Huntsville, AL, United StatesReported employees: 51-200 | Huntsville, AL, United States | 51-200 | Exact match | 58 contacts → |
“Digium®, Inc.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Bicom Systems - BAbicomsystems.com HQ: Zenica, Bosnia and HerzegovinaReported employees: 51-200 | Zenica, Bosnia and Herzegovina | 51-200 | Exact match | 55 contacts → |
“Bicom Systems is an international software telecommunication company.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HOIIOhoiio.com HQ: SingaporeReported employees: 11-50 | Singapore | 11-50 | Exact match | 54 contacts → |
“Six years ago, Hoiio was founded with a mission to simplify the way we communicate.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | VOXOvoxo.co HQ: Hattiesburg, MS, United StatesReported employees: 11-50 | Hattiesburg, MS, United States | 11-50 | Exact match | 53 contacts → |
“VOXO offers phone systems and call center software for businesses with a focus on simplicity and customer satisfaction.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Superfonesuperfone.in HQ: Bangalore, IndiaReported employees: 11-50 | Bangalore, India | 11-50 | Exact match | 52 contacts → |
“Superfone is India's 1st Business Phone Number built to help small businesses manage their customer interactions better and grow their business.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Itoolabsitoolabs.com HQ: Tula, United KingdomReported employees: 51-200 | Tula, United Kingdom | 51-200 | Exact match | 51 contacts → |
“ITooLabs is global software vendor with own product ITooLabs Communications Server.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Teleware PLCteleware.com HQ: Easingwold, United KingdomReported employees: 51-200 | Easingwold, United Kingdom | 51-200 | Exact match | 49 contacts → |
“TeleWare design software to help businesses communicate better with their customers and employees by routing communications more effectively.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Total IP IAtotalip.com.br HQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 47 contacts → |
“A Total IP é uma empresa líder em prover soluções integradas de telefonia para call centers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Redt Telecomredt.cloud HQ: Petrópolis, BrazilReported employees: 51-200 | Petrópolis, Brazil | 51-200 | Exact match | 40 contacts → |
“RedT is a Rio de Janeiro based company commited to develop and deploy communication solutions mainly using VoIP solutions.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 674 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Phone system software vendors: dataset insights
September 29, 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
672 records in the displayed employee bands.
2 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 674 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: September 29, 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 ↗
Phone system software vendors by location
3 lists · largest firstEvery Phone system software vendors 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 phone system software vendors?
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 phone system software vendors did RevenueBase find worldwide?
The saved snapshot records 674 matching company records, 7,989 tracked contacts and 1,659 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: September 29, 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.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 phone system software vendors worldwide. Snapshot: September 29, 2026. https://revenuebase.ai/companies/browse/phone-system-software-vendors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗