Company lists · Data refreshed October 2026
Top 25 Phone line protectors suppliers worldwide
RevenueBase identified 103 company matches for phone line protectors suppliers worldwide as of October 2026 and tracks 1,116 professional contacts across them, including 333 with verified work emails. Wenzhou is the largest hub.
This list covers company matches for phone line protectors 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 28, 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 line protectors suppliers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 142 contacts → | ||||
Exact match “DEHN India is a subsidiary of DEHN SE.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 2 | 113 contacts → | ||||
Exact match “DEHN, headquartered in Neumarkt i.d.OPf, Germany, develops and manufactures devices for the reliable protection of persons, buildings, electrical and electronic systems against…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 3 | 77 contacts → | ||||
Exact match “Cirprotec is a pioneer in the design and manufacture of lightning and surge protection devices.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 4 | 69 contacts → | ||||
Exact match “For more than 115 years, DEHN has been a global leader in lightning protection, surge protection, grounding, bonding, and electrical safety.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 5 | 59 contacts → | ||||
Exact match “SALTEK® is a leading Czech company specialized in the development and production of surge protective devices.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 6 | 34 contacts → | ||||
Exact match “DEHN AFRICA is a subsidiary of DEHN + SE + Co KG.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 7 | 31 contacts → | ||||
Exact match “Lightning Master Corporation We wrote the book on static solutions and lightning protection.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 8 | 31 contacts → | ||||
Exact match “INDUSTRIA ELÉCTRICA NEWLINE, es una empresa fundada hace 20 años con el propósito de fabricar, comercializar, importar y dar soporte a toda nuestra línea de productos…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 9 | 25 contacts → | ||||
Exact match “DEHN (U.K.) LTD.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 10 | 25 contacts → | ||||
Exact match “Společnost HAKEL spol.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 11 | 23 contacts → | ||||
Exact match “Since 1937, CITEL has been keeping the world's critical networks and equipment protected from transient overvoltages.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 12 | 19 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 13 | 18 contacts → | ||||
Exact match “Surge Suppression, LLC (SSI) is the leading manufacturer, distributor and service provider of power quality products, trusted by over customer around the globe.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 14 | 15 contacts → | ||||
Exact match “NOVARIS is an Australian company that has been protecting power, data, and communication systems since 1993.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 15 | 14 contacts → | ||||
Exact match “DEHN IBÉRICA was founded in 1992 as a subsidiary of the German company DEHN, specialist and leader in the field of lightning and surge protection and safety equipment.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 16 | 11 contacts → | ||||
Exact match “Lightning and Surge protection for electrical and electronic systems to the new British and European Standard BSEN62305.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 17 | 6 contacts → | ||||
Exact match “The protection company Als renommierter Partner für Strom, Überspannungs- und Temperaturschutz in der Elektronik- und Elektroindustrie streben wir bei der ESKA Erich Schweizer…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 18 | 6 contacts → | ||||
Exact match “Innosys Power is Canada's premiere Surge Protection Specialist.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 19 | 5 contacts → | ||||
Exact match “DEHN es un fabricante líder mundial de protección contra rayos y sobretensiones para todos los sistemas de energía de clase de bajo voltaje, medición y control, instrumentación…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 20 | 4 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 21 | 4 contacts → | ||||
Exact match “Již více než století stojíme v čele vývoje a poskytování pokročilých systémů ochrany před bleskem a přepětím.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “Lightning Down Under (LDU) is an Australian designer and manufacturer of lightning and surge protection products.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 23 | 2 contacts → | ||||
Exact match “PQ Protection is a leading manufacturer of surge protection devices.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 24 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match “Degraded performance, intermittent problems, damaged equipment, and fires can all be attributed to inadequate surge protection.” Recorded in the RevenueBase company graph · Oct 28, 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 line protectors 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 103 phone line protectors suppliers worldwide
See the full list, filter by size, metro and specialty, and access 333 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Phone line protectors suppliers worldwide at a glance
As of Oct 28, 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 103 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 “phone line protectors 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 333 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 28, 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 line protectors suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many phone line protectors suppliers are there worldwide?
RevenueBase identified 103 company matches for phone line protectors 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?
Dehn India Pvt. LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most phone line protectors suppliers?
Wenzhou leads with 3 company records, followed by Bergamo (2) and Clearwater (2).
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 333 professional contacts with verified work emails tracked across these 103 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 103 phone line protectors 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 phone line protectors 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 103 matching company records for phone line protectors suppliers worldwide, with 1,116 tracked contacts and 333 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 28, 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 line protectors 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 | Dehn India Pvt. LTDdehn.in HQ: Gurgaon, IndiaReported employees: 51-200 | Gurgaon, India | 51-200 | Exact match | 142 contacts → |
“DEHN India is a subsidiary of DEHN SE.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Dehn SEdehn.de HQ: GermanyReported employees: 1,001-5,000 | Germany | 1,001-5,000 | Exact match | 113 contacts → |
“DEHN, headquartered in Neumarkt i.d.OPf, Germany, develops and manufactures devices for the reliable protection of persons, buildings, electrical and electronic systems against…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cirproteccirprotec.com HQ: Terrassa, SpainReported employees: 51-200 | Terrassa, Spain | 51-200 | Exact match | 77 contacts → |
“Cirprotec is a pioneer in the design and manufacture of lightning and surge protection devices.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Dehn Americasdehn.us HQ: Mooresville, NC, United StatesReported employees: 11-50 | Mooresville, NC, United States | 11-50 | Exact match | 69 contacts → |
“For more than 115 years, DEHN has been a global leader in lightning protection, surge protection, grounding, bonding, and electrical safety.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Saltek S.R.Osaltek.eu HQ: Ústí Nad Labem, Czech RepublicReported employees: 51-200 | Ústí Nad Labem, Czech Republic | 51-200 | Exact match | 59 contacts → |
“SALTEK® is a leading Czech company specialized in the development and production of surge protective devices.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Dehn Africa PTY LTDdehn-africa.com HQ: Midrand, South AfricaReported employees: 11-50 | Midrand, South Africa | 11-50 | Exact match | 34 contacts → |
“DEHN AFRICA is a subsidiary of DEHN + SE + Co KG.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Lightning Master Corporationlightningmaster.com HQ: Clearwater, FL, United StatesReported employees: 51-200 | Clearwater, FL, United States | 51-200 | Exact match | 31 contacts → |
“Lightning Master Corporation We wrote the book on static solutions and lightning protection.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Industria Eléctrica Newline S.A.Snewline.com.co HQ: Bogotá, ColombiaReported employees: 11-50 | Bogotá, Colombia | 11-50 | Exact match | 31 contacts → |
“INDUSTRIA ELÉCTRICA NEWLINE, es una empresa fundada hace 20 años con el propósito de fabricar, comercializar, importar y dar soporte a toda nuestra línea de productos…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Dehn UK LTDdehn.co.uk HQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 25 contacts → |
“DEHN (U.K.) LTD.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Hakel Spol. S R.Ohakel.com HQ: Hradec Králové, Czech RepublicReported employees: 51-200 | Hradec Králové, Czech Republic | 51-200 | Exact match | 25 contacts → |
“Společnost HAKEL spol.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Citel USAcitel.us HQ: Miramar, FL, United StatesReported employees: 11-50 | Miramar, FL, United States | 11-50 | Exact match | 23 contacts → |
“Since 1937, CITEL has been keeping the world's critical networks and equipment protected from transient overvoltages.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Dehn Middle East FZEdehn.ae HQ: Dubai, United Arab EmiratesReported employees: 1-10 | Dubai, United Arab Emirates | 1-10 | Exact match | 19 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Surge Suppression, LLCsurgesuppression.com HQ: Brooksville, FL, United StatesReported employees: 11-50 | Brooksville, FL, United States | 11-50 | Exact match | 18 contacts → |
“Surge Suppression, LLC (SSI) is the leading manufacturer, distributor and service provider of power quality products, trusted by over customer around the globe.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Novarisnovaris.com.au HQ: Kingston, AustraliaReported employees: 11-50 | Kingston, Australia | 11-50 | Exact match | 15 contacts → |
“NOVARIS is an Australian company that has been protecting power, data, and communication systems since 1993.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Dehn Ibéricadehn.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 14 contacts → |
“DEHN IBÉRICA was founded in 1992 as a subsidiary of the German company DEHN, specialist and leader in the field of lightning and surge protection and safety equipment.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Surge Protection Devices LTDsurgedevices.co.uk HQ: Oldham, United KingdomReported employees: 1-10 | Oldham, United Kingdom | 1-10 | Exact match | 11 contacts → |
“Lightning and Surge protection for electrical and electronic systems to the new British and European Standard BSEN62305.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Eska Erich Schweizer Gmbheska-fuses.de HQ: Kassel, GermanyReported employees: 11-50 | Kassel, Germany | 11-50 | Exact match | 6 contacts → |
“The protection company Als renommierter Partner für Strom, Überspannungs- und Temperaturschutz in der Elektronik- und Elektroindustrie streben wir bei der ESKA Erich Schweizer…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Innosys Powerinnosyspower.com HQ: Sarnia, ON, CanadaReported employees: 11-50 | Sarnia, ON, Canada | 11-50 | Exact match | 6 contacts → |
“Innosys Power is Canada's premiere Surge Protection Specialist.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Dehn Méxicodehn.mx HQ: Mexico City, MexicoReported employees: 11-50 | Mexico City, Mexico | 11-50 | Exact match | 5 contacts → |
“DEHN es un fabricante líder mundial de protección contra rayos y sobretensiones para todos los sistemas de energía de clase de bajo voltaje, medición y control, instrumentación…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Leutron Gmbhleutron.de HQ: Leinfelden-echterdingen, GermanyReported employees: 1-10 | Leinfelden-echterdingen, Germany | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Dehn S.R.Odehn.cz HQ: Praha 4, Czech RepublicReported employees: 1-10 | Praha 4, Czech Republic | 1-10 | Exact match | 4 contacts → |
“Již více než století stojíme v čele vývoje a poskytování pokročilých systémů ochrany před bleskem a přepětím.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Lightning Down Under PTY LTDldu.com.au HQ: Mulgrave, AustraliaReported employees: 11-50 | Mulgrave, Australia | 11-50 | Exact match | 3 contacts → |
“Lightning Down Under (LDU) is an Australian designer and manufacturer of lightning and surge protection products.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | PQ Protectionpqprotection.com HQ: Tampa, FL, United StatesReported employees: 11-50 | Tampa, FL, United States | 11-50 | Exact match | 2 contacts → |
“PQ Protection is a leading manufacturer of surge protection devices.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Citel Surge Protection Pvt.Ltdcitel.in HQ: New Delhi, IndiaReported employees: 1-10 | New Delhi, India | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Zero Surge INCzerosurge.com HQ: Frenchtown, NJ, United StatesReported employees: 1-10 | Frenchtown, NJ, United States | 1-10 | Exact match | 1 contacts → |
“Degraded performance, intermittent problems, damaged equipment, and fires can all be attributed to inadequate surge protection.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 103 company matches
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Phone line protectors suppliers: dataset insights
October 28, 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
101 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 103 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 28, 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 line protectors 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 phone line protectors suppliers did RevenueBase find worldwide?
The saved snapshot records 103 matching company records, 1,116 tracked contacts and 333 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 28, 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 phone line protectors suppliers worldwide. Snapshot: October 28, 2026. https://revenuebase.ai/companies/browse/phone-line-protectors-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 phone line protectors suppliers worldwide
RevenueBase records 103 matching company records for phone line protectors suppliers worldwide, with 1,116 tracked contacts and 333 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 28, 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 line protectors 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 | Dehn India Pvt. LTDdehn.in HQ: Gurgaon, IndiaReported employees: 51-200 | Gurgaon, India | 51-200 | Exact match | 142 contacts → |
“DEHN India is a subsidiary of DEHN SE.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Dehn SEdehn.de HQ: GermanyReported employees: 1,001-5,000 | Germany | 1,001-5,000 | Exact match | 113 contacts → |
“DEHN, headquartered in Neumarkt i.d.OPf, Germany, develops and manufactures devices for the reliable protection of persons, buildings, electrical and electronic systems against…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cirproteccirprotec.com HQ: Terrassa, SpainReported employees: 51-200 | Terrassa, Spain | 51-200 | Exact match | 77 contacts → |
“Cirprotec is a pioneer in the design and manufacture of lightning and surge protection devices.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Dehn Americasdehn.us HQ: Mooresville, NC, United StatesReported employees: 11-50 | Mooresville, NC, United States | 11-50 | Exact match | 69 contacts → |
“For more than 115 years, DEHN has been a global leader in lightning protection, surge protection, grounding, bonding, and electrical safety.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Saltek S.R.Osaltek.eu HQ: Ústí Nad Labem, Czech RepublicReported employees: 51-200 | Ústí Nad Labem, Czech Republic | 51-200 | Exact match | 59 contacts → |
“SALTEK® is a leading Czech company specialized in the development and production of surge protective devices.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Dehn Africa PTY LTDdehn-africa.com HQ: Midrand, South AfricaReported employees: 11-50 | Midrand, South Africa | 11-50 | Exact match | 34 contacts → |
“DEHN AFRICA is a subsidiary of DEHN + SE + Co KG.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Lightning Master Corporationlightningmaster.com HQ: Clearwater, FL, United StatesReported employees: 51-200 | Clearwater, FL, United States | 51-200 | Exact match | 31 contacts → |
“Lightning Master Corporation We wrote the book on static solutions and lightning protection.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Industria Eléctrica Newline S.A.Snewline.com.co HQ: Bogotá, ColombiaReported employees: 11-50 | Bogotá, Colombia | 11-50 | Exact match | 31 contacts → |
“INDUSTRIA ELÉCTRICA NEWLINE, es una empresa fundada hace 20 años con el propósito de fabricar, comercializar, importar y dar soporte a toda nuestra línea de productos…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Dehn UK LTDdehn.co.uk HQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 25 contacts → |
“DEHN (U.K.) LTD.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Hakel Spol. S R.Ohakel.com HQ: Hradec Králové, Czech RepublicReported employees: 51-200 | Hradec Králové, Czech Republic | 51-200 | Exact match | 25 contacts → |
“Společnost HAKEL spol.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Citel USAcitel.us HQ: Miramar, FL, United StatesReported employees: 11-50 | Miramar, FL, United States | 11-50 | Exact match | 23 contacts → |
“Since 1937, CITEL has been keeping the world's critical networks and equipment protected from transient overvoltages.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Dehn Middle East FZEdehn.ae HQ: Dubai, United Arab EmiratesReported employees: 1-10 | Dubai, United Arab Emirates | 1-10 | Exact match | 19 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Surge Suppression, LLCsurgesuppression.com HQ: Brooksville, FL, United StatesReported employees: 11-50 | Brooksville, FL, United States | 11-50 | Exact match | 18 contacts → |
“Surge Suppression, LLC (SSI) is the leading manufacturer, distributor and service provider of power quality products, trusted by over customer around the globe.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Novarisnovaris.com.au HQ: Kingston, AustraliaReported employees: 11-50 | Kingston, Australia | 11-50 | Exact match | 15 contacts → |
“NOVARIS is an Australian company that has been protecting power, data, and communication systems since 1993.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Dehn Ibéricadehn.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 14 contacts → |
“DEHN IBÉRICA was founded in 1992 as a subsidiary of the German company DEHN, specialist and leader in the field of lightning and surge protection and safety equipment.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Surge Protection Devices LTDsurgedevices.co.uk HQ: Oldham, United KingdomReported employees: 1-10 | Oldham, United Kingdom | 1-10 | Exact match | 11 contacts → |
“Lightning and Surge protection for electrical and electronic systems to the new British and European Standard BSEN62305.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Eska Erich Schweizer Gmbheska-fuses.de HQ: Kassel, GermanyReported employees: 11-50 | Kassel, Germany | 11-50 | Exact match | 6 contacts → |
“The protection company Als renommierter Partner für Strom, Überspannungs- und Temperaturschutz in der Elektronik- und Elektroindustrie streben wir bei der ESKA Erich Schweizer…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Innosys Powerinnosyspower.com HQ: Sarnia, ON, CanadaReported employees: 11-50 | Sarnia, ON, Canada | 11-50 | Exact match | 6 contacts → |
“Innosys Power is Canada's premiere Surge Protection Specialist.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Dehn Méxicodehn.mx HQ: Mexico City, MexicoReported employees: 11-50 | Mexico City, Mexico | 11-50 | Exact match | 5 contacts → |
“DEHN es un fabricante líder mundial de protección contra rayos y sobretensiones para todos los sistemas de energía de clase de bajo voltaje, medición y control, instrumentación…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Leutron Gmbhleutron.de HQ: Leinfelden-echterdingen, GermanyReported employees: 1-10 | Leinfelden-echterdingen, Germany | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Dehn S.R.Odehn.cz HQ: Praha 4, Czech RepublicReported employees: 1-10 | Praha 4, Czech Republic | 1-10 | Exact match | 4 contacts → |
“Již více než století stojíme v čele vývoje a poskytování pokročilých systémů ochrany před bleskem a přepětím.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Lightning Down Under PTY LTDldu.com.au HQ: Mulgrave, AustraliaReported employees: 11-50 | Mulgrave, Australia | 11-50 | Exact match | 3 contacts → |
“Lightning Down Under (LDU) is an Australian designer and manufacturer of lightning and surge protection products.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | PQ Protectionpqprotection.com HQ: Tampa, FL, United StatesReported employees: 11-50 | Tampa, FL, United States | 11-50 | Exact match | 2 contacts → |
“PQ Protection is a leading manufacturer of surge protection devices.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Citel Surge Protection Pvt.Ltdcitel.in HQ: New Delhi, IndiaReported employees: 1-10 | New Delhi, India | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Zero Surge INCzerosurge.com HQ: Frenchtown, NJ, United StatesReported employees: 1-10 | Frenchtown, NJ, United States | 1-10 | Exact match | 1 contacts → |
“Degraded performance, intermittent problems, damaged equipment, and fires can all be attributed to inadequate surge protection.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 103 company matches
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Phone line protectors suppliers: dataset insights
October 28, 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
101 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 103 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 28, 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 line protectors 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 phone line protectors suppliers did RevenueBase find worldwide?
The saved snapshot records 103 matching company records, 1,116 tracked contacts and 333 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 28, 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 phone line protectors suppliers worldwide. Snapshot: October 28, 2026. https://revenuebase.ai/companies/browse/phone-line-protectors-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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