Company lists · Data refreshed September 2026
Top 25 Telephony software vendors based in the United States
RevenueBase identified 208 company matches for telephony software vendors associated with the United States as of September 2026 and tracks 3,472 professional contacts across them, including 621 with verified work emails. New York is the largest hub.
This list covers company matches for telephony software vendors associated with the United States, 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.
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 telephony software vendors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 252 contacts → | ||||
Exact match “BroadSoft, now part of Cisco, is the leading provider of software and services that enable mobile, fixed-line and cable service providers to offer Unified Communications over…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 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 · Sep 29, 2026 · View company records in RevenueBase | |||||
| 3 | 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 | |||||
| 4 | 118 contacts → | ||||
Exact match “Amtelco has been a family-owned communication software company since 1976 and devoted to providing secure, stable, and critical communication solutions for healthcare, contact…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 5 | 58 contacts → | ||||
Exact match “Digium®, Inc.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 51 contacts → | ||||
Exact match “Teltech is a New York-based communications company and a proud part of Mosaic Group, a division of IAC (Nasdaq: IAC), fostering a unique and diverse Silicon Valley-like culture…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 45 contacts → | ||||
Exact match “14IP is a global software development and technology company specialising in telecommunications.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 39 contacts → | ||||
Exact match “Gold Systems helps improve your profitability and increase customer satisfaction by developing and implementing unified communications and self-service solutions powered by voice.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 37 contacts → | ||||
Exact match “Nevotek provides value-added business communications solutions using the highly programmable, IP-based unified communications platform as a springboard for its innovative product…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 34 contacts → | ||||
Exact match “Since 1993, Intelemedia has developed sophisticated telephony and database solutions that transform how organizations more effectively manage call handling and caller experiences…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 11 | 34 contacts → | ||||
Exact match “D2 is the market leader in software platforms that power IP communications equipment and mobile phone.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 32 contacts → | ||||
Exact match “Unified Office is a leading communications technology company, constantly innovating to help its business customers and channel partners stay ahead in a rapidly changing world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 13 | 28 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 14 | 22 contacts → | ||||
Exact match “Redmond Software is a software vendor and systems integrator specialized in the development of advanced telecommunications products, including- Value-Added services platforms for…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 21 contacts → | ||||
Exact match “Vantage is a Cloud Communications and SaaS technology company.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 16 | 20 contacts → | ||||
Exact match “SmartBot started in 2019 with the purpose of revolutionizing the way companies communicate.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 19 contacts → | ||||
Exact match “Since 1979, General Communications has been providing over businesses in New England and throughout the world with telephone systems and applications.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 18 contacts → | ||||
Exact match “GCS is a next gen solutions provider focusing specifically on the global inter-carrier telecommunications industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 19 | 17 contacts → | ||||
Exact match “CallHarbor continually focuses on providing small and medium-sized businesses with VoIP systems that have all the telephony advantages of large organizations, at a manageable…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 17 contacts → | ||||
Exact match “UniVoxx provides business telecommunications ranging from business phones to call centers for companies of all sizes and service providers.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 17 contacts → | ||||
Exact match “PEC] Parwan Telecom Technologies Pvt Ltd.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 17 contacts → | ||||
Exact match “Development of service oriented communications software and applications.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 16 contacts → | ||||
Exact match “TelOnline is an advanced telecommunications and software development company with extensive industry experience.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 15 contacts → | ||||
Exact match “Xarios Technologies have more than 15 years’ track record working with some of the global leaders of the telecoms industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 13 contacts → | ||||
Exact match “As a leading sales organization, CCG Telecom specializes in delivering comprehensive telephony and VoIP solutions to businesses of all sizes.” 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 “telephony 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 208 telephony software vendors based in the United States
See the full list, filter by size, metro and specialty, and access 621 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Telephony software vendors based in the United States at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 208 companies.
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.
- What qualifies
- Company records associated with the United States whose business descriptions match “telephony 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 621 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.
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 “telephony software vendors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many telephony software vendors are there based in the United States?
RevenueBase identified 208 company matches for telephony software vendors associated with the United States 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?
Broadsoft tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most telephony software vendors?
New York leads with 7 company records, followed by Atlanta (5) and Los Angeles (4).
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 621 professional contacts with verified work emails tracked across these 208 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 208 telephony software vendors based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Telephony software vendors by geography
- Telephony software vendors based in Australia
- Telephony software vendors based in Brazil
- Telephony software vendors based in Canada
- Telephony software vendors based in France
- Telephony software vendors based in Germany
- Telephony software vendors based in India
- Telephony software vendors based in Türkiye
- Telephony software vendors based in the United Kingdom
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Telephony software vendors based in Australia
- Telephony software vendors based in Brazil
- Telephony software vendors based in Canada
- Telephony software vendors based in France
- Telephony software vendors based in Germany
- Telephony software vendors based in India
Company intelligence · public preview
Top 25 telephony software vendors based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 208 matching company records for telephony software vendors based in the United States, with 3,472 tracked contacts and 621 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 telephony software vendors based in the United States
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 |  Broadsoftbroadsoft.comHQ: Gaithersburg, MD, United StatesReported employees: 1,001-5,000 | Gaithersburg, MD, United States | 1,001-5,000 | Exact match | 252 contacts → |
“BroadSoft, now part of Cisco, is the leading provider of software and services that enable mobile, fixed-line and cable service providers to offer Unified Communications over…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  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 · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  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. | |||||
| 4 |  Amtelcoamtelco.comHQ: Mcfarland, WI, United StatesReported employees: 51-200 | Mcfarland, WI, United States | 51-200 | Exact match | 118 contacts → |
“Amtelco has been a family-owned communication software company since 1976 and devoted to providing secure, stable, and critical communication solutions for healthcare, contact…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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. | |||||
| 6 |  Teltechteltech.coHQ: New York, NY, United StatesReported employees: Not recorded | New York, NY, United States | Not recorded | Exact match | 51 contacts → |
“Teltech is a New York-based communications company and a proud part of Mosaic Group, a division of IAC (Nasdaq: IAC), fostering a unique and diverse Silicon Valley-like culture…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Clearlyip14ip.comHQ: Appleton, WI, United StatesReported employees: 201-500 | Appleton, WI, United States | 201-500 | Exact match | 45 contacts → |
“14IP is a global software development and technology company specialising in telecommunications.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Gold Systemsgoldsys.com HQ: Boulder, CO, United StatesReported employees: 51-200 | Boulder, CO, United States | 51-200 | Exact match | 39 contacts → |
“Gold Systems helps improve your profitability and increase customer satisfaction by developing and implementing unified communications and self-service solutions powered by voice.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Nevoteknevotek.comHQ: Santa Clara, CA, United StatesReported employees: 51-200 | Santa Clara, CA, United States | 51-200 | Exact match | 37 contacts → |
“Nevotek provides value-added business communications solutions using the highly programmable, IP-based unified communications platform as a springboard for its innovative product…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Intelemedia Communicationsintelemedia.comHQ: Plano, TX, United StatesReported employees: 51-200 | Plano, TX, United States | 51-200 | Exact match | 34 contacts → |
“Since 1993, Intelemedia has developed sophisticated telephony and database solutions that transform how organizations more effectively manage call handling and caller experiences…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  D2 Technologiesd2tech.comHQ: Santa Barbara, CA, United StatesReported employees: 51-200 | Santa Barbara, CA, United States | 51-200 | Exact match | 34 contacts → |
“D2 is the market leader in software platforms that power IP communications equipment and mobile phone.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Unified Office, INCunifiedoffice.com HQ: Nashua, NH, United StatesReported employees: 11-50 | Nashua, NH, United States | 11-50 | Exact match | 32 contacts → |
“Unified Office is a leading communications technology company, constantly innovating to help its business customers and channel partners stay ahead in a rapidly changing world.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Genusys INCgenusys.us HQ: Lewisville, TX, United StatesReported employees: 11-50 | Lewisville, TX, United States | 11-50 | Exact match | 28 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 |  Redmond Softwareredmondsoftware.comHQ: Miami, FL, United StatesReported employees: 11-50 | Miami, FL, United States | 11-50 | Exact match | 22 contacts → |
“Redmond Software is a software vendor and systems integrator specialized in the development of advanced telecommunications products, including- Value-Added services platforms for…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Vantage Unified Communicationsvantageunified.com HQ: New Hope, PA, United StatesReported employees: 201-500 | New Hope, PA, United States | 201-500 | Exact match | 21 contacts → |
“Vantage is a Cloud Communications and SaaS technology company.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Smartbotsmartbot.ai HQ: Charleston, SC, United StatesReported employees: 51-200 | Charleston, SC, United States | 51-200 | Exact match | 20 contacts → |
“SmartBot started in 2019 with the purpose of revolutionizing the way companies communicate.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | General Communicationsgcctel.com HQ: Woburn, MA, United StatesReported employees: 11-50 | Woburn, MA, United States | 11-50 | Exact match | 19 contacts → |
“Since 1979, General Communications has been providing over businesses in New England and throughout the world with telephone systems and applications.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Global Convergence Solutions, Inc. GCSglobalconverge.com HQ: Cranbury, NJ, United StatesReported employees: 11-50 | Cranbury, NJ, United States | 11-50 | Exact match | 18 contacts → |
“GCS is a next gen solutions provider focusing specifically on the global inter-carrier telecommunications industry.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Callharborcallharbor.com HQ: Livonia, MI, United StatesReported employees: 11-50 | Livonia, MI, United States | 11-50 | Exact match | 17 contacts → |
“CallHarbor continually focuses on providing small and medium-sized businesses with VoIP systems that have all the telephony advantages of large organizations, at a manageable…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Univoxxunivoxx.com HQ: Bloomfield Hills, MI, United StatesReported employees: 11-50 | Bloomfield Hills, MI, United States | 11-50 | Exact match | 17 contacts → |
“UniVoxx provides business telecommunications ranging from business phones to call centers for companies of all sizes and service providers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | PEC Parwan Telecom Technologies PVT LTDvoicesaver.com HQ: Aberdeen, United StatesReported employees: 51-200 | Aberdeen, United States | 51-200 | Exact match | 17 contacts → |
“PEC] Parwan Telecom Technologies Pvt Ltd.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Lincolnshire, IL, United StatesReported employees: 201-500 | Lincolnshire, IL, United States | 201-500 | Exact match | 17 contacts → |
“Development of service oriented communications software and applications.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Telonline LLCtelonline.com HQ: Sunrise, FL, United StatesReported employees: 11-50 | Sunrise, FL, United States | 11-50 | Exact match | 16 contacts → |
“TelOnline is an advanced telecommunications and software development company with extensive industry experience.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Xarios Technologiesxarios.com HQ: Gilbert, AZ, United StatesReported employees: 11-50 | Gilbert, AZ, United States | 11-50 | Exact match | 15 contacts → |
“Xarios Technologies have more than 15 years’ track record working with some of the global leaders of the telecoms industry.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | CCG Telecomccgtelecom.com HQ: Westerly, RI, United StatesReported employees: 11-50 | Westerly, RI, United States | 11-50 | Exact match | 13 contacts → |
“As a leading sales organization, CCG Telecom specializes in delivering comprehensive telephony and VoIP solutions to businesses of all sizes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 208 company matches
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Telephony 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
208 records in the displayed employee bands.
0 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 worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 208 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 ↗
Questions about this company list
What does Exact match mean for telephony 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 telephony software vendors did RevenueBase find based in the United States?
The saved snapshot records 208 matching company records, 3,472 tracked contacts and 621 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
Telephony software vendors by geography
- Telephony software vendors based in Australia
- Telephony software vendors based in Brazil
- Telephony software vendors based in Canada
- Telephony software vendors based in France
- Telephony software vendors based in Germany
- Telephony software vendors based in India
- Telephony software vendors based in Türkiye
- Telephony software vendors based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 telephony software vendors based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/telephony-software-vendors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Telephony software vendors based in Australia
- Telephony software vendors based in Brazil
- Telephony software vendors based in Canada
- Telephony software vendors based in France
- Telephony software vendors based in Germany
- Telephony software vendors based in India
Company intelligence · public preview
Top 25 telephony software vendors based in the United States
RevenueBase records 208 matching company records for telephony software vendors based in the United States, with 3,472 tracked contacts and 621 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 telephony software vendors based in the United States
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 | Broadsoftbroadsoft.com HQ: Gaithersburg, MD, United StatesReported employees: 1,001-5,000 | Gaithersburg, MD, United States | 1,001-5,000 | Exact match | 252 contacts → |
“BroadSoft, now part of Cisco, is the leading provider of software and services that enable mobile, fixed-line and cable service providers to offer Unified Communications over…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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. | |||||
| 4 | Amtelcoamtelco.com HQ: Mcfarland, WI, United StatesReported employees: 51-200 | Mcfarland, WI, United States | 51-200 | Exact match | 118 contacts → |
“Amtelco has been a family-owned communication software company since 1976 and devoted to providing secure, stable, and critical communication solutions for healthcare, contact…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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. | |||||
| 6 | Teltechteltech.co HQ: New York, NY, United StatesReported employees: Not recorded | New York, NY, United States | Not recorded | Exact match | 51 contacts → |
“Teltech is a New York-based communications company and a proud part of Mosaic Group, a division of IAC (Nasdaq: IAC), fostering a unique and diverse Silicon Valley-like culture…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Clearlyip14ip.com HQ: Appleton, WI, United StatesReported employees: 201-500 | Appleton, WI, United States | 201-500 | Exact match | 45 contacts → |
“14IP is a global software development and technology company specialising in telecommunications.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Gold Systemsgoldsys.com HQ: Boulder, CO, United StatesReported employees: 51-200 | Boulder, CO, United States | 51-200 | Exact match | 39 contacts → |
“Gold Systems helps improve your profitability and increase customer satisfaction by developing and implementing unified communications and self-service solutions powered by voice.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Nevoteknevotek.com HQ: Santa Clara, CA, United StatesReported employees: 51-200 | Santa Clara, CA, United States | 51-200 | Exact match | 37 contacts → |
“Nevotek provides value-added business communications solutions using the highly programmable, IP-based unified communications platform as a springboard for its innovative product…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Intelemedia Communicationsintelemedia.com HQ: Plano, TX, United StatesReported employees: 51-200 | Plano, TX, United States | 51-200 | Exact match | 34 contacts → |
“Since 1993, Intelemedia has developed sophisticated telephony and database solutions that transform how organizations more effectively manage call handling and caller experiences…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | D2 Technologiesd2tech.com HQ: Santa Barbara, CA, United StatesReported employees: 51-200 | Santa Barbara, CA, United States | 51-200 | Exact match | 34 contacts → |
“D2 is the market leader in software platforms that power IP communications equipment and mobile phone.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Unified Office, INCunifiedoffice.com HQ: Nashua, NH, United StatesReported employees: 11-50 | Nashua, NH, United States | 11-50 | Exact match | 32 contacts → |
“Unified Office is a leading communications technology company, constantly innovating to help its business customers and channel partners stay ahead in a rapidly changing world.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Genusys INCgenusys.us HQ: Lewisville, TX, United StatesReported employees: 11-50 | Lewisville, TX, United States | 11-50 | Exact match | 28 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Redmond Softwareredmondsoftware.com HQ: Miami, FL, United StatesReported employees: 11-50 | Miami, FL, United States | 11-50 | Exact match | 22 contacts → |
“Redmond Software is a software vendor and systems integrator specialized in the development of advanced telecommunications products, including- Value-Added services platforms for…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Vantage Unified Communicationsvantageunified.com HQ: New Hope, PA, United StatesReported employees: 201-500 | New Hope, PA, United States | 201-500 | Exact match | 21 contacts → |
“Vantage is a Cloud Communications and SaaS technology company.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Smartbotsmartbot.ai HQ: Charleston, SC, United StatesReported employees: 51-200 | Charleston, SC, United States | 51-200 | Exact match | 20 contacts → |
“SmartBot started in 2019 with the purpose of revolutionizing the way companies communicate.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | General Communicationsgcctel.com HQ: Woburn, MA, United StatesReported employees: 11-50 | Woburn, MA, United States | 11-50 | Exact match | 19 contacts → |
“Since 1979, General Communications has been providing over businesses in New England and throughout the world with telephone systems and applications.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Global Convergence Solutions, Inc. GCSglobalconverge.com HQ: Cranbury, NJ, United StatesReported employees: 11-50 | Cranbury, NJ, United States | 11-50 | Exact match | 18 contacts → |
“GCS is a next gen solutions provider focusing specifically on the global inter-carrier telecommunications industry.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Callharborcallharbor.com HQ: Livonia, MI, United StatesReported employees: 11-50 | Livonia, MI, United States | 11-50 | Exact match | 17 contacts → |
“CallHarbor continually focuses on providing small and medium-sized businesses with VoIP systems that have all the telephony advantages of large organizations, at a manageable…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Univoxxunivoxx.com HQ: Bloomfield Hills, MI, United StatesReported employees: 11-50 | Bloomfield Hills, MI, United States | 11-50 | Exact match | 17 contacts → |
“UniVoxx provides business telecommunications ranging from business phones to call centers for companies of all sizes and service providers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | PEC Parwan Telecom Technologies PVT LTDvoicesaver.com HQ: Aberdeen, United StatesReported employees: 51-200 | Aberdeen, United States | 51-200 | Exact match | 17 contacts → |
“PEC] Parwan Telecom Technologies Pvt Ltd.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Lincolnshire, IL, United StatesReported employees: 201-500 | Lincolnshire, IL, United States | 201-500 | Exact match | 17 contacts → |
“Development of service oriented communications software and applications.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Telonline LLCtelonline.com HQ: Sunrise, FL, United StatesReported employees: 11-50 | Sunrise, FL, United States | 11-50 | Exact match | 16 contacts → |
“TelOnline is an advanced telecommunications and software development company with extensive industry experience.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Xarios Technologiesxarios.com HQ: Gilbert, AZ, United StatesReported employees: 11-50 | Gilbert, AZ, United States | 11-50 | Exact match | 15 contacts → |
“Xarios Technologies have more than 15 years’ track record working with some of the global leaders of the telecoms industry.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | CCG Telecomccgtelecom.com HQ: Westerly, RI, United StatesReported employees: 11-50 | Westerly, RI, United States | 11-50 | Exact match | 13 contacts → |
“As a leading sales organization, CCG Telecom specializes in delivering comprehensive telephony and VoIP solutions to businesses of all sizes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 208 company matches
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Telephony 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
208 records in the displayed employee bands.
0 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 worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 208 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 ↗
Questions about this company list
What does Exact match mean for telephony 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 telephony software vendors did RevenueBase find based in the United States?
The saved snapshot records 208 matching company records, 3,472 tracked contacts and 621 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
Telephony software vendors by geography
- Telephony software vendors based in Australia
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- Telephony software vendors based in Canada
- Telephony software vendors based in France
- Telephony software vendors based in Germany
- Telephony software vendors based in India
- Telephony software vendors based in Türkiye
- Telephony software vendors based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 telephony software vendors based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/telephony-software-vendors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Telephony software vendors based in France
- Telephony software vendors based in Germany
- Telephony software vendors based in India