Company lists · Data refreshed October 2026
Top 25 Calling & signaling system suppliers worldwide
RevenueBase identified 224 company matches for calling & signaling system suppliers worldwide as of October 2026 and tracks 15,902 professional contacts across them, including 1,695 with verified work emails. Barcelona is the largest hub.
This list covers company matches for calling & signaling system suppliers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 23, 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 calling & signaling system suppliers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,441 contacts → | ||||
Exact match “PT, a global supplier of advanced network solutions, offers Diameter and SS7 Signaling Systems delivering advanced routing/applications to SS7, 4G/LTE, and IMS telecom networks.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 2 | 3,206 contacts → | ||||
Exact match “HFCL is a leading technology company specialising in creating digital networks for telcos, enterprises and governments.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 3 | 351 contacts → | ||||
Exact match “Innovation for the Last Mile® PCT International, Inc is at the forefront of an evolving industry with superior telecom solutions.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 4 | 298 contacts → | ||||
Exact match “MERMEC STE is an international provider of signal solutions and technologies devoted to the safety, control and enhancement of railway infrastructure.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 5 | 226 contacts → | ||||
Exact match “Founded in 1958 in Pistoia, Italy, as ECM, Progress Rail Signaling has been servicing the railway infrastructure for well over sixty years in a constant pursue of innovation and…” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 6 | 187 contacts → | ||||
Exact match “SENSEDGE, is involved in Railway signalling business with the mission of providing innovative services to the clients across the globe.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 7 | 173 contacts → | ||||
Exact match “Enyse is the heir of the longest history in Spain’s Signalling sector – in 1924 the first electric interlocking is commissioned at Don Carlos station in Barcelona, which at the…” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 8 | 158 contacts → | ||||
Exact match “Intelligent signal technology - for the world of today and tomorrow Clever solutions that simply work – this has been our goal at WERMA for decades, and customers from all over…” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 9 | 129 contacts → | ||||
Exact match “Established in Barcelona in 1977, Electrosistemas Bach S.A.(ELECTRANS) has been a pioneering force in the railway signaling sector since its inception.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 10 | 122 contacts → | ||||
Exact match “Intrarom is the subsidiary of Intracom Telecom, a global telecommunication systems vendor with 40 years of experience in the telecom market, strong regional presence in EMEA and…” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 11 | 105 contacts → | ||||
Exact match “FONEX is a leading carrier-class telecom equipment supplier focused on delivering optimized network infrastructure design solutions.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 12 | 86 contacts → | ||||
Exact match “Autelcom svolge attività di progettazione, fornitura, installazione, manutenzione, presidio e outsourcing di prodotti ad elevato contenuto tecnologico.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 13 | 81 contacts → | ||||
Exact match “Established in 1970, Positron Inc.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 14 | 80 contacts → | ||||
Exact match “DexGreen Ltd has operated for over 27 years, engineering novel solutions by collaborating directly with our clients.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 15 | 74 contacts → | ||||
Exact match “Coral Telecom Limited is the largest designer, manufacturer & telecom solution provider in India.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 16 | 65 contacts → | ||||
Exact match “teleSys Software is the premier provider of advanced Telecommunications solutions for the next generation LTE Signaling Networks, providing open systems hardware and software.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 17 | 54 contacts → | ||||
Exact match “Auer Signal is one of the world's leading manufacturers of signalling equipment and is present in over 70 countries today.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 18 | 53 contacts → | ||||
Exact match “Todos.it S.r.l.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 19 | 46 contacts → | ||||
Exact match “Since its establishment in 2002, KNET has been constantly contributing to the development of telecommunications technologies in order to create a better life for people.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 20 | 42 contacts → | ||||
Exact match “Créée en 1988, AMPHITECH est spécialisée dans la conception et la fabrication de matériels de communication : portiers téléphoniques, postes d'appels d’urgence, bornes d’appel…” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 21 | 38 contacts → | ||||
Exact match “Durante 42 años ISEC S.A ha sido la empresa líder en el suministro de equipos y sistemas de comunicación para los diferentes mercados industriales del país.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 22 | 33 contacts → | ||||
Exact match “L&W is a vertically integrated manufacturer and distributor of signaling and communication solutions for the rail industry.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 23 | 28 contacts → | ||||
Exact match “PATLITE Corporation is a computer software company based out of Osaka, Osaka Prefecture, Japan.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 24 | 27 contacts → | ||||
Exact match “A proud history of innovation in safety and efficiency.” Recorded in the RevenueBase company graph · Oct 23, 2026 · View company records in RevenueBase | |||||
| 25 | 27 contacts → | ||||
Exact match “CTC, Inc, provides railroad signaling and communication engineering and project management services.” Recorded in the RevenueBase company graph · Oct 23, 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 “calling & signaling system suppliers”. 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 224 calling & signaling system suppliers worldwide
See the full list, filter by size, metro and specialty, and access 1,695 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Calling & signaling system suppliers worldwide at a glance
As of Oct 23, 2026Companies by employee count
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 224 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 worldwide whose business descriptions match “calling & signaling system suppliers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 1,695 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 23, 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 “calling & signaling system suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many calling & signaling system suppliers are there worldwide?
RevenueBase identified 224 company matches for calling & signaling system suppliers worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
PT Performance Technologies, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most calling & signaling system suppliers?
Barcelona leads with 4 company records, followed by Berlin (3) and Bogota (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,695 professional contacts with verified work emails tracked across these 224 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 23, 2026.
Ready to reach these companies? Verified emails and direct dials for all 224 calling & signaling system suppliers worldwide. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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Company intelligence · public preview
Top 25 calling & signaling system suppliers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 224 matching company records for calling & signaling system suppliers worldwide, with 15,902 tracked contacts and 1,695 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 23, 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 calling & signaling system suppliers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: Rochester, NY, United StatesReported employees: Not recorded | Rochester, NY, United States | Not recorded | Exact match | 6,441 contacts → |
“PT, a global supplier of advanced network solutions, offers Diameter and SS7 Signaling Systems delivering advanced routing/applications to SS7, 4G/LTE, and IMS telecom networks.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Hfcl Limitedhfcl.comHQ: New Delhi, IndiaReported employees: 1,001-5,000 | New Delhi, India | 1,001-5,000 | Exact match | 3,206 contacts → |
“HFCL is a leading technology company specialising in creating digital networks for telcos, enterprises and governments.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  PCT International, INCpctinternational.comHQ: Tempe, AZ, United StatesReported employees: 201-500 | Tempe, AZ, United States | 201-500 | Exact match | 351 contacts → |
“Innovation for the Last Mile® PCT International, Inc is at the forefront of an evolving industry with superior telecom solutions.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Mermec STEmermecste.comHQ: Genoa, ItalyReported employees: 201-500 | Genoa, Italy | 201-500 | Exact match | 298 contacts → |
“MERMEC STE is an international provider of signal solutions and technologies devoted to the safety, control and enhancement of railway infrastructure.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Progress Rail Signaling S.P.Aprogressrail.comHQ: Cantagrillo, ItalyReported employees: 201-500 | Cantagrillo, Italy | 201-500 | Exact match | 226 contacts → |
“Founded in 1958 in Pistoia, Italy, as ECM, Progress Rail Signaling has been servicing the railway infrastructure for well over sixty years in a constant pursue of innovation and…” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Sensedge Transportation Systems And Solutions PVT LTDsensedgetss.comHQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 187 contacts → |
“SENSEDGE, is involved in Railway signalling business with the mission of providing innovative services to the clients across the globe.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | ENYSEenyse.com HQ: Alcobendas, SpainReported employees: 51-200 | Alcobendas, Spain | 51-200 | Exact match | 173 contacts → |
“Enyse is the heir of the longest history in Spain’s Signalling sector – in 1924 the first electric interlocking is commissioned at Don Carlos station in Barcelona, which at the…” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | WERMAwerma.com HQ: Rietheim-weilheim, United KingdomReported employees: 201-500 | Rietheim-weilheim, United Kingdom | 201-500 | Exact match | 158 contacts → |
“Intelligent signal technology - for the world of today and tomorrow Clever solutions that simply work – this has been our goal at WERMA for decades, and customers from all over…” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Electranselectrans.esHQ: Santa Perpètua De Mogoda, SpainReported employees: 201-500 | Santa Perpètua De Mogoda, Spain | 201-500 | Exact match | 129 contacts → |
“Established in Barcelona in 1977, Electrosistemas Bach S.A.(ELECTRANS) has been a pioneering force in the railway signaling sector since its inception.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Intraromintrarom.roHQ: Bucharest, RomaniaReported employees: 201-500 | Bucharest, Romania | 201-500 | Exact match | 122 contacts → |
“Intrarom is the subsidiary of Intracom Telecom, a global telecommunication systems vendor with 40 years of experience in the telecom market, strong regional presence in EMEA and…” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Fonex Data Systems INCfonex.comHQ: Saint Laurent, QC, French GuianaReported employees: 51-200 | Saint Laurent, QC, French Guiana | 51-200 | Exact match | 105 contacts → |
“FONEX is a leading carrier-class telecom equipment supplier focused on delivering optimized network infrastructure design solutions.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Autelcom S.P.Aautelcom.it HQ: San Giovanni Teatino, ItalyReported employees: 51-200 | San Giovanni Teatino, Italy | 51-200 | Exact match | 86 contacts → |
“Autelcom svolge attività di progettazione, fornitura, installazione, manutenzione, presidio e outsourcing di prodotti ad elevato contenuto tecnologico.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Positronpositronpower.com HQ: Montreal, QC, CanadaReported employees: 201-500 | Montreal, QC, Canada | 201-500 | Exact match | 81 contacts → |
“Established in 1970, Positron Inc.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Dexgreen LTDdexgreen.comHQ: Cork, IrelandReported employees: 11-50 | Cork, Ireland | 11-50 | Exact match | 80 contacts → |
“DexGreen Ltd has operated for over 27 years, engineering novel solutions by collaborating directly with our clients.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Coral Telecom Limitedcoraltele.com HQ: Noida, IndiaReported employees: 201-500 | Noida, India | 201-500 | Exact match | 74 contacts → |
“Coral Telecom Limited is the largest designer, manufacturer & telecom solution provider in India.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Telesys Software, INCtelesys.comHQ: San Mateo, CA, United StatesReported employees: 51-200 | San Mateo, CA, United States | 51-200 | Exact match | 65 contacts → |
“teleSys Software is the premier provider of advanced Telecommunications solutions for the next generation LTE Signaling Networks, providing open systems hardware and software.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Auer Signal Gmbhauersignal.comHQ: Vienna, AustriaReported employees: 51-200 | Vienna, Austria | 51-200 | Exact match | 54 contacts → |
“Auer Signal is one of the world's leading manufacturers of signalling equipment and is present in over 70 countries today.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Pisogne, ItalyReported employees: 51-200 | Pisogne, Italy | 51-200 | Exact match | 53 contacts → |
“Todos.it S.r.l.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Knet Co.,ltde-knet.com HQ: Seoul, South KoreaReported employees: 51-200 | Seoul, South Korea | 51-200 | Exact match | 46 contacts → |
“Since its establishment in 2002, KNET has been constantly contributing to the development of telecommunications technologies in order to create a better life for people.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Amphitechamphitech.frHQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 42 contacts → |
“Créée en 1988, AMPHITECH est spécialisée dans la conception et la fabrication de matériels de communication : portiers téléphoniques, postes d'appels d’urgence, bornes d’appel…” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Isec S.Aisec.com.co HQ: Bogota, ColombiaReported employees: 51-200 | Bogota, Colombia | 51-200 | Exact match | 38 contacts → |
“Durante 42 años ISEC S.A ha sido la empresa líder en el suministro de equipos y sistemas de comunicación para los diferentes mercados industriales del país.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  L&w Industrieslwind.comHQ: Strafford, MO, United StatesReported employees: 51-200 | Strafford, MO, United States | 51-200 | Exact match | 33 contacts → |
“L&W is a vertically integrated manufacturer and distributor of signaling and communication solutions for the rail industry.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Patlite Corporationpatlite.co.jp HQ: Osaka, JapanReported employees: 501-1,000 | Osaka, Japan | 501-1,000 | Exact match | 28 contacts → |
“PATLITE Corporation is a computer software company based out of Osaka, Osaka Prefecture, Japan.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Patlite USA Corporationpatlite.com HQ: Torrance, CA, United StatesReported employees: 501-1,000 | Torrance, CA, United States | 501-1,000 | Exact match | 27 contacts → |
“A proud history of innovation in safety and efficiency.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Ctc, INCctcinc.comHQ: Fort Worth, TX, United StatesReported employees: 11-50 | Fort Worth, TX, United States | 11-50 | Exact match | 27 contacts → |
“CTC, Inc, provides railroad signaling and communication engineering and project management services.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 224 company matches
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Calling & signaling system suppliers: dataset insights
October 23, 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
222 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 224 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 23, 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 calling & signaling system suppliers?
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 calling & signaling system suppliers did RevenueBase find worldwide?
The saved snapshot records 224 matching company records, 15,902 tracked contacts and 1,695 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 23, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 calling & signaling system suppliers worldwide. Snapshot: October 23, 2026. https://revenuebase.ai/companies/browse/calling-signaling-system-suppliers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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Company intelligence · public preview
Top 25 calling & signaling system suppliers worldwide
RevenueBase records 224 matching company records for calling & signaling system suppliers worldwide, with 15,902 tracked contacts and 1,695 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 23, 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 calling & signaling system suppliers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: Rochester, NY, United StatesReported employees: Not recorded | Rochester, NY, United States | Not recorded | Exact match | 6,441 contacts → |
“PT, a global supplier of advanced network solutions, offers Diameter and SS7 Signaling Systems delivering advanced routing/applications to SS7, 4G/LTE, and IMS telecom networks.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Hfcl Limitedhfcl.com HQ: New Delhi, IndiaReported employees: 1,001-5,000 | New Delhi, India | 1,001-5,000 | Exact match | 3,206 contacts → |
“HFCL is a leading technology company specialising in creating digital networks for telcos, enterprises and governments.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | PCT International, INCpctinternational.com HQ: Tempe, AZ, United StatesReported employees: 201-500 | Tempe, AZ, United States | 201-500 | Exact match | 351 contacts → |
“Innovation for the Last Mile® PCT International, Inc is at the forefront of an evolving industry with superior telecom solutions.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Mermec STEmermecste.com HQ: Genoa, ItalyReported employees: 201-500 | Genoa, Italy | 201-500 | Exact match | 298 contacts → |
“MERMEC STE is an international provider of signal solutions and technologies devoted to the safety, control and enhancement of railway infrastructure.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Progress Rail Signaling S.P.Aprogressrail.com HQ: Cantagrillo, ItalyReported employees: 201-500 | Cantagrillo, Italy | 201-500 | Exact match | 226 contacts → |
“Founded in 1958 in Pistoia, Italy, as ECM, Progress Rail Signaling has been servicing the railway infrastructure for well over sixty years in a constant pursue of innovation and…” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Sensedge Transportation Systems And Solutions PVT LTDsensedgetss.com HQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 187 contacts → |
“SENSEDGE, is involved in Railway signalling business with the mission of providing innovative services to the clients across the globe.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | ENYSEenyse.com HQ: Alcobendas, SpainReported employees: 51-200 | Alcobendas, Spain | 51-200 | Exact match | 173 contacts → |
“Enyse is the heir of the longest history in Spain’s Signalling sector – in 1924 the first electric interlocking is commissioned at Don Carlos station in Barcelona, which at the…” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | WERMAwerma.com HQ: Rietheim-weilheim, United KingdomReported employees: 201-500 | Rietheim-weilheim, United Kingdom | 201-500 | Exact match | 158 contacts → |
“Intelligent signal technology - for the world of today and tomorrow Clever solutions that simply work – this has been our goal at WERMA for decades, and customers from all over…” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Electranselectrans.es HQ: Santa Perpètua De Mogoda, SpainReported employees: 201-500 | Santa Perpètua De Mogoda, Spain | 201-500 | Exact match | 129 contacts → |
“Established in Barcelona in 1977, Electrosistemas Bach S.A.(ELECTRANS) has been a pioneering force in the railway signaling sector since its inception.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Intraromintrarom.ro HQ: Bucharest, RomaniaReported employees: 201-500 | Bucharest, Romania | 201-500 | Exact match | 122 contacts → |
“Intrarom is the subsidiary of Intracom Telecom, a global telecommunication systems vendor with 40 years of experience in the telecom market, strong regional presence in EMEA and…” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Fonex Data Systems INCfonex.com HQ: Saint Laurent, QC, French GuianaReported employees: 51-200 | Saint Laurent, QC, French Guiana | 51-200 | Exact match | 105 contacts → |
“FONEX is a leading carrier-class telecom equipment supplier focused on delivering optimized network infrastructure design solutions.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Autelcom S.P.Aautelcom.it HQ: San Giovanni Teatino, ItalyReported employees: 51-200 | San Giovanni Teatino, Italy | 51-200 | Exact match | 86 contacts → |
“Autelcom svolge attività di progettazione, fornitura, installazione, manutenzione, presidio e outsourcing di prodotti ad elevato contenuto tecnologico.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Positronpositronpower.com HQ: Montreal, QC, CanadaReported employees: 201-500 | Montreal, QC, Canada | 201-500 | Exact match | 81 contacts → |
“Established in 1970, Positron Inc.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Dexgreen LTDdexgreen.com HQ: Cork, IrelandReported employees: 11-50 | Cork, Ireland | 11-50 | Exact match | 80 contacts → |
“DexGreen Ltd has operated for over 27 years, engineering novel solutions by collaborating directly with our clients.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Coral Telecom Limitedcoraltele.com HQ: Noida, IndiaReported employees: 201-500 | Noida, India | 201-500 | Exact match | 74 contacts → |
“Coral Telecom Limited is the largest designer, manufacturer & telecom solution provider in India.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Telesys Software, INCtelesys.com HQ: San Mateo, CA, United StatesReported employees: 51-200 | San Mateo, CA, United States | 51-200 | Exact match | 65 contacts → |
“teleSys Software is the premier provider of advanced Telecommunications solutions for the next generation LTE Signaling Networks, providing open systems hardware and software.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Auer Signal Gmbhauersignal.com HQ: Vienna, AustriaReported employees: 51-200 | Vienna, Austria | 51-200 | Exact match | 54 contacts → |
“Auer Signal is one of the world's leading manufacturers of signalling equipment and is present in over 70 countries today.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Pisogne, ItalyReported employees: 51-200 | Pisogne, Italy | 51-200 | Exact match | 53 contacts → |
“Todos.it S.r.l.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Knet Co.,ltde-knet.com HQ: Seoul, South KoreaReported employees: 51-200 | Seoul, South Korea | 51-200 | Exact match | 46 contacts → |
“Since its establishment in 2002, KNET has been constantly contributing to the development of telecommunications technologies in order to create a better life for people.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Amphitechamphitech.fr HQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 42 contacts → |
“Créée en 1988, AMPHITECH est spécialisée dans la conception et la fabrication de matériels de communication : portiers téléphoniques, postes d'appels d’urgence, bornes d’appel…” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Isec S.Aisec.com.co HQ: Bogota, ColombiaReported employees: 51-200 | Bogota, Colombia | 51-200 | Exact match | 38 contacts → |
“Durante 42 años ISEC S.A ha sido la empresa líder en el suministro de equipos y sistemas de comunicación para los diferentes mercados industriales del país.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | L&w Industrieslwind.com HQ: Strafford, MO, United StatesReported employees: 51-200 | Strafford, MO, United States | 51-200 | Exact match | 33 contacts → |
“L&W is a vertically integrated manufacturer and distributor of signaling and communication solutions for the rail industry.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Patlite Corporationpatlite.co.jp HQ: Osaka, JapanReported employees: 501-1,000 | Osaka, Japan | 501-1,000 | Exact match | 28 contacts → |
“PATLITE Corporation is a computer software company based out of Osaka, Osaka Prefecture, Japan.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Patlite USA Corporationpatlite.com HQ: Torrance, CA, United StatesReported employees: 501-1,000 | Torrance, CA, United States | 501-1,000 | Exact match | 27 contacts → |
“A proud history of innovation in safety and efficiency.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Ctc, INCctcinc.com HQ: Fort Worth, TX, United StatesReported employees: 11-50 | Fort Worth, TX, United States | 11-50 | Exact match | 27 contacts → |
“CTC, Inc, provides railroad signaling and communication engineering and project management services.” Recorded description excerpt · October 23, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 224 company matches
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Calling & signaling system suppliers: dataset insights
October 23, 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
222 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 224 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 23, 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 calling & signaling system suppliers?
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 calling & signaling system suppliers did RevenueBase find worldwide?
The saved snapshot records 224 matching company records, 15,902 tracked contacts and 1,695 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 23, 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
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Cite this list
RevenueBase Data Team. Top 25 calling & signaling system suppliers worldwide. Snapshot: October 23, 2026. https://revenuebase.ai/companies/browse/calling-signaling-system-suppliers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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