Company lists · Data refreshed September 2026
Top 25 Phone system software vendors based in the United States
RevenueBase identified 169 company matches for phone system software vendors associated with the United States as of September 2026 and tracks 1,429 professional contacts across them, including 371 with verified work emails. Atlanta is the largest hub.
This list covers company matches for phone system 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 phone system software vendors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 | |||||
| 2 | 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 | |||||
| 3 | 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 | |||||
| 4 | 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 | |||||
| 5 | 58 contacts → | ||||
Exact match “Digium®, Inc.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 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 | |||||
| 7 | 34 contacts → | ||||
Exact match “Business Phones for Small and Medium Businesses.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 25 contacts → | ||||
Exact match “Headquartered in Rochester, N.Y, Allworx is an award-winning maker of VoIP communication systems for SMBs.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 19 contacts → | ||||
Exact match “Loop Communications provides hosted business phone systems and service.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 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 | |||||
| 11 | 18 contacts → | ||||
Exact match “In Epygi Technologies was one of the first IP PBX manufacturers for the small to medium-sized business market.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 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 | |||||
| 13 | 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 | |||||
| 14 | 17 contacts → | ||||
Exact match “PEC] Parwan Telecom Technologies Pvt Ltd.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 17 contacts → | ||||
Exact match “At Magic Apple we install and support custom IP based phone systems.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 16 | 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 | |||||
| 17 | 15 contacts → | ||||
Exact match “At Telco Depot, our priority is helping our clients make informed decisions based on their specific Small Business Phone System needs.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 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 | |||||
| 19 | 15 contacts → | ||||
Exact match “In business since 1992, Teleprime delivers best of class turn-key communication solutions for our clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 14 contacts → | ||||
Exact match “Cebod Telecom provides, built to help companies communicate clearly and operate efficiently.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 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 | |||||
| 22 | 13 contacts → | ||||
Exact match “Granite Communications is a cloud phone system provider.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 13 contacts → | ||||
Exact match “CtiPath engineers truly innovative products and voice applications for Cisco Contact Centers.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 12 contacts → | ||||
Exact match “Market Communications is a communications technology firm committed to providing innovation and service excellence to the financial services industry.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 10 contacts → | ||||
Exact match “Since 1992, Dove Communications Inc provides VOIP Phone Systems, Telecommunication solutions, and network Cabling, Dove provides cosultation, Sales, Installation, Training, and…” 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 169 phone system software vendors based in the United States
See the full list, filter by size, metro and specialty, and access 371 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Phone system 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 169 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 “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. 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 371 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 “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 based in the United States?
RevenueBase identified 169 company matches for phone system 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?
Unimax tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most phone system software vendors?
Atlanta leads with 4 company records, followed by Dallas (4) and New York (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 371 professional contacts with verified work emails tracked across these 169 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 169 phone system software vendors based in the United States. Start with a free account, no credit card.
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Phone system software vendors by geography
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
- Phone system software vendors based in Brazil
- Phone system software vendors based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
Company intelligence · public preview
Top 25 phone system 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 169 matching company records for phone system software vendors based in the United States, with 1,429 tracked contacts and 371 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 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 |  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. | |||||
| 2 |  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. | |||||
| 3 |  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. | |||||
| 4 |  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. | |||||
| 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 | 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. | |||||
| 7 | MANGOmangovoice.com HQ: St George, UT, United StatesReported employees: 11-50 | St George, UT, United States | 11-50 | Exact match | 34 contacts → |
“Business Phones for Small and Medium Businesses.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Allworxallworx.comHQ: Rochester, NY, United StatesReported employees: 11-50 | Rochester, NY, United States | 11-50 | Exact match | 25 contacts → |
“Headquartered in Rochester, N.Y, Allworx is an award-winning maker of VoIP communication systems for SMBs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Loop Communications LLCloopcommunications.com HQ: Charlotte, NC, United StatesReported employees: 11-50 | Charlotte, NC, United States | 11-50 | Exact match | 19 contacts → |
“Loop Communications provides hosted business phone systems and service.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 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. | |||||
| 11 | Epygi Technologies LLCepygi.com HQ: Altamonte Springs, FL, United StatesReported employees: 11-50 | Altamonte Springs, FL, United States | 11-50 | Exact match | 18 contacts → |
“In Epygi Technologies was one of the first IP PBX manufacturers for the small to medium-sized business market.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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. | |||||
| 13 | 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. | |||||
| 14 | 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. | |||||
| 15 | Magic Applemagicapple.com HQ: Nashville, United StatesReported employees: 11-50 | Nashville, United States | 11-50 | Exact match | 17 contacts → |
“At Magic Apple we install and support custom IP based phone systems.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | 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. | |||||
| 17 | Telco Depottelcodepot.com HQ: Bay Shore, NY, United StatesReported employees: 1-10 | Bay Shore, NY, United States | 1-10 | Exact match | 15 contacts → |
“At Telco Depot, our priority is helping our clients make informed decisions based on their specific Small Business Phone System needs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 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. | |||||
| 19 | Teleprime LLCteleprime.com HQ: Lake Bluff, IL, United StatesReported employees: 11-50 | Lake Bluff, IL, United States | 11-50 | Exact match | 15 contacts → |
“In business since 1992, Teleprime delivers best of class turn-key communication solutions for our clients.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Cebod Telecomcebodtelecom.com HQ: Tustin, CA, United StatesReported employees: 11-50 | Tustin, CA, United States | 11-50 | Exact match | 14 contacts → |
“Cebod Telecom provides, built to help companies communicate clearly and operate efficiently.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | 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. | |||||
| 22 | Granite Communications INCmygranitecloud.com HQ: North Haven, CT, United StatesReported employees: 1-10 | North Haven, CT, United States | 1-10 | Exact match | 13 contacts → |
“Granite Communications is a cloud phone system provider.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Ctipathctipath.comHQ: Raleigh, NC, United StatesReported employees: 11-50 | Raleigh, NC, United States | 11-50 | Exact match | 13 contacts → |
“CtiPath engineers truly innovative products and voice applications for Cisco Contact Centers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Market Communications, LLCmarketcommunications.netHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 12 contacts → |
“Market Communications is a communications technology firm committed to providing innovation and service excellence to the financial services industry.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Dove Communications INCdovecommunications.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 10 contacts → |
“Since 1992, Dove Communications Inc provides VOIP Phone Systems, Telecommunication solutions, and network Cabling, Dove provides cosultation, Sales, Installation, Training, and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 169 company matches
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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
169 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 169 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 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 based in the United States?
The saved snapshot records 169 matching company records, 1,429 tracked contacts and 371 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
Phone system software vendors by geography
Cite this list
RevenueBase Data Team. Top 25 phone system software vendors based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/phone-system-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
- Phone system software vendors based in Brazil
- Phone system software vendors based in the United Kingdom
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
Company intelligence · public preview
Top 25 phone system software vendors based in the United States
RevenueBase records 169 matching company records for phone system software vendors based in the United States, with 1,429 tracked contacts and 371 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 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 | 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. | |||||
| 2 | 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. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 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 | 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. | |||||
| 7 | MANGOmangovoice.com HQ: St George, UT, United StatesReported employees: 11-50 | St George, UT, United States | 11-50 | Exact match | 34 contacts → |
“Business Phones for Small and Medium Businesses.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Allworxallworx.com HQ: Rochester, NY, United StatesReported employees: 11-50 | Rochester, NY, United States | 11-50 | Exact match | 25 contacts → |
“Headquartered in Rochester, N.Y, Allworx is an award-winning maker of VoIP communication systems for SMBs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Loop Communications LLCloopcommunications.com HQ: Charlotte, NC, United StatesReported employees: 11-50 | Charlotte, NC, United States | 11-50 | Exact match | 19 contacts → |
“Loop Communications provides hosted business phone systems and service.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 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. | |||||
| 11 | Epygi Technologies LLCepygi.com HQ: Altamonte Springs, FL, United StatesReported employees: 11-50 | Altamonte Springs, FL, United States | 11-50 | Exact match | 18 contacts → |
“In Epygi Technologies was one of the first IP PBX manufacturers for the small to medium-sized business market.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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. | |||||
| 13 | 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. | |||||
| 14 | 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. | |||||
| 15 | Magic Applemagicapple.com HQ: Nashville, United StatesReported employees: 11-50 | Nashville, United States | 11-50 | Exact match | 17 contacts → |
“At Magic Apple we install and support custom IP based phone systems.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | 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. | |||||
| 17 | Telco Depottelcodepot.com HQ: Bay Shore, NY, United StatesReported employees: 1-10 | Bay Shore, NY, United States | 1-10 | Exact match | 15 contacts → |
“At Telco Depot, our priority is helping our clients make informed decisions based on their specific Small Business Phone System needs.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 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. | |||||
| 19 | Teleprime LLCteleprime.com HQ: Lake Bluff, IL, United StatesReported employees: 11-50 | Lake Bluff, IL, United States | 11-50 | Exact match | 15 contacts → |
“In business since 1992, Teleprime delivers best of class turn-key communication solutions for our clients.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Cebod Telecomcebodtelecom.com HQ: Tustin, CA, United StatesReported employees: 11-50 | Tustin, CA, United States | 11-50 | Exact match | 14 contacts → |
“Cebod Telecom provides, built to help companies communicate clearly and operate efficiently.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | 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. | |||||
| 22 | Granite Communications INCmygranitecloud.com HQ: North Haven, CT, United StatesReported employees: 1-10 | North Haven, CT, United States | 1-10 | Exact match | 13 contacts → |
“Granite Communications is a cloud phone system provider.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Ctipathctipath.com HQ: Raleigh, NC, United StatesReported employees: 11-50 | Raleigh, NC, United States | 11-50 | Exact match | 13 contacts → |
“CtiPath engineers truly innovative products and voice applications for Cisco Contact Centers.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Market Communications, LLCmarketcommunications.net HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 12 contacts → |
“Market Communications is a communications technology firm committed to providing innovation and service excellence to the financial services industry.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Dove Communications INCdovecommunications.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 10 contacts → |
“Since 1992, Dove Communications Inc provides VOIP Phone Systems, Telecommunication solutions, and network Cabling, Dove provides cosultation, Sales, Installation, Training, and…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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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
169 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 169 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 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 based in the United States?
The saved snapshot records 169 matching company records, 1,429 tracked contacts and 371 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
Phone system software vendors by geography
Cite this list
RevenueBase Data Team. Top 25 phone system software vendors based in the United States. Snapshot: September 29, 2026. https://revenuebase.ai/companies/phone-system-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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