Company lists · Data refreshed November 2026
Top 25 Relay protection system companies worldwide
RevenueBase identified 1,130 company matches for relay protection system companies worldwide as of November 2026 and tracks 28,280 professional contacts across them, including 7,772 with verified work emails. The United States is the largest market and Chennai the largest hub.
This list covers company matches for relay protection system companies 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 November 6, 2026. Country and city lists for relay protection system companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest relay protection system companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,934 contacts → | ||||
Exact match “SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 1,119 contacts → | ||||
Exact match “The Arteche Group, with 75 years of experience in the electric power industry, offers high-tech solutions and equipment, with a complete range of instrument transformers…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 1,037 contacts → | ||||
Exact match “Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 642 contacts → | ||||
Exact match “For us, sustainable development begins with setting some of the highest standards in energy management and protection – the faster, the better.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 590 contacts → | ||||
Exact match “RESA Power is your ONE-STOP for all of your power needs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 585 contacts → | ||||
Exact match “SEP - System House Factory for Electrical Panels was established in 2006 centrally situated in the Kingdom's capital, Riyadh, SEP is a leading ISO-certified manufacturer and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 480 contacts → | ||||
Exact match “ASCO Power Technologies has provided power reliability solutions for more than 125 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 398 contacts → | ||||
Exact match “MI Electric Brasil is a company specialized in electrical engineering, controls and automation, focusing on provide energy supplies and equipment maintenance solutions in order to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 372 contacts → | ||||
Exact match “ASHIDA Electronics Pvt Ltd is a leading provider of Protection & Automation solutions in Electrical Transmission & Distribution field.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 359 contacts → | ||||
Exact match “NISSI is specialized in Testing and Commissioning, Relay testing, and SCADA solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 355 contacts → | ||||
Exact match “Delivering confidence for over 40 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 273 contacts → | ||||
Exact match “Crown Technical Systems, a Flex company, is headquartered in Fontana, California, with additional production and engineering facilities in Dallas, Texas, and Ontario, Canada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 245 contacts → | ||||
Exact match “Systems Control, a Hubbell brand, designs and manufactures turnkey control systems and control relays that are involved in the protection and control of transmission and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 229 contacts → | ||||
Exact match “We have been in the market for over 20 years serving the main industrial and commercial markets, gaining prominent positions in the segments of Engineering, Commissioning of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 204 contacts → | ||||
Exact match “With experience manufacturing, repairing and servicing distribution equipment, Partner Technologies Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 199 contacts → | ||||
Exact match “RFL is a Hubbell Power Systems brand that provides power line communication equipment and protection solutions, relaying products, application support, and customized systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 171 contacts → | ||||
Exact match “Gruner is innovative.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 165 contacts → | ||||
Exact match “Solomon Corporation buys, sells, repairs, recycles, and disposes of transformers, regulators and reclosers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 162 contacts → | ||||
Exact match “SELCO is a leading manufacturer of protection relays, alarm monitoring and engine & generator control products that are used in marine, offshore and industrial applications.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 161 contacts → | ||||
Exact match “Esterline Power Systems (Leach International) designs and manufactures a broad range of high-reliable power switching assemblies, relays, and control components and equipment for…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 153 contacts → | ||||
Exact match “Davenham Switchgear Limited, a proud member of Legrand Group are an industry leader in the design, engineering, manufacturing, and commissioning of advanced electrical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 130 contacts → | ||||
Exact match “Service provider on Power system field” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 127 contacts → | ||||
Exact match “A ESC – Engenharia de Sistemas de Controle Ltda, foi fundada em para atender à demanda existente no mercado local e nacional de desenvolvimento de Sistemas de Controle Digital…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 116 contacts → | ||||
Exact match “In 2025, Basler Electric Company was acquired by Littelfuse, Inc, a global, diversified industrial technology manufacturing company dedicated to creating a sustainable, connected…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 115 contacts → | ||||
Exact match “PROTASIS Engineering & Consulting, headquartered in Athens, Greece was established in 2002 operating in the wider HV and MV energy generation, transmission and distribution…” Recorded in the RevenueBase company graph · Nov 6, 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 “relay protection system companies”. 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 1,130 relay protection system companies worldwide
See the full list, filter by size, metro and specialty, and access 7,772 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Relay protection system companies worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for relay protection system companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “relay protection system companies” 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 7,772 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 November 6, 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.
Relay protection system companies by location
6 lists · largest firstEvery Relay protection system companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Relay protection system companies based in the United States146
- Relay protection system companies based in India145
- Relay protection system companies based in Brazil90
- Relay protection system companies based in the United Kingdom42
- Relay protection system companies based in Italy37
- Relay protection system companies based in Canada29
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 “relay protection system companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many relay protection system companies are there worldwide?
RevenueBase identified 1,130 company matches for relay protection system companies worldwide as of November 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?
Schweitzer Engineering Laboratories SEL tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most relay protection system companies?
The United States leads with 146 companies, followed by India (145) and Brazil (90). Every relay protection system companies list by country and city is linked on this page.
Which city has the most relay protection system companies?
Chennai leads with 19 company records, followed by Sao Paulo (17) and Bangalore (16).
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 7,772 professional contacts with verified work emails tracked across these 1,130 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,130 relay protection system companies 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.
More company lists
Company intelligence · public preview
Top 25 relay protection system companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,130 matching company records for relay protection system companies worldwide, with 28,280 tracked contacts and 7,772 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: November 6, 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 relay protection system companies 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 |  Schweitzer Engineering Laboratories SELselinc.comHQ: Pullman, KY, United StatesReported employees: 5,001-10,000 | Pullman, KY, United States | 5,001-10,000 | Exact match | 6,934 contacts → |
“SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Artechearteche.comHQ: Mungia, SpainReported employees: 1,001-5,000 | Mungia, Spain | 1,001-5,000 | Exact match | 1,119 contacts → |
“The Arteche Group, with 75 years of experience in the electric power industry, offers high-tech solutions and equipment, with a complete range of instrument transformers…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Warrendale, FL, United StatesReported employees: 1,001-5,000 | Warrendale, FL, United States | 1,001-5,000 | Exact match | 1,037 contacts → |
“Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  DEIFdeif.comHQ: Skive, DenmarkReported employees: 501-1,000 | Skive, Denmark | 501-1,000 | Exact match | 642 contacts → |
“For us, sustainable development begins with setting some of the highest standards in energy management and protection – the faster, the better.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Resa Powerresapower.comHQ: Houston, CA, United StatesReported employees: 1,001-5,000 | Houston, CA, United States | 1,001-5,000 | Exact match | 590 contacts → |
“RESA Power is your ONE-STOP for all of your power needs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Riyadh, Saudi ArabiaReported employees: 1,001-5,000 | Riyadh, Saudi Arabia | 1,001-5,000 | Exact match | 585 contacts → |
“SEP - System House Factory for Electrical Panels was established in 2006 centrally situated in the Kingdom's capital, Riyadh, SEP is a leading ISO-certified manufacturer and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Asco Power Technologiesascopower.comHQ: Florham Park, NJ, United StatesReported employees: 1,001-5,000 | Florham Park, NJ, United States | 1,001-5,000 | Exact match | 480 contacts → |
“ASCO Power Technologies has provided power reliability solutions for more than 125 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  MI Electric Brasilmielectric.com.brHQ: Macaé, BrazilReported employees: 201-500 | Macaé, Brazil | 201-500 | Exact match | 398 contacts → |
“MI Electric Brasil is a company specialized in electrical engineering, controls and automation, focusing on provide energy supplies and equipment maintenance solutions in order to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Ashida Electronicsashidaelectronics.comHQ: Thane, IndiaReported employees: 501-1,000 | Thane, India | 501-1,000 | Exact match | 372 contacts → |
“ASHIDA Electronics Pvt Ltd is a leading provider of Protection & Automation solutions in Electrical Transmission & Distribution field.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Nissi Engineering Solution Pvt. LTDnissi.co.inHQ: Chennai, IndiaReported employees: 201-500 | Chennai, India | 201-500 | Exact match | 359 contacts → |
“NISSI is specialized in Testing and Commissioning, Relay testing, and SCADA solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Edmonton, CO, CanadaReported employees: 201-500 | Edmonton, CO, Canada | 201-500 | Exact match | 355 contacts → |
“Delivering confidence for over 40 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Crown Technical Systemscrowntechnicalsystems.comHQ: Fontana, ON, United StatesReported employees: 201-500 | Fontana, ON, United States | 201-500 | Exact match | 273 contacts → |
“Crown Technical Systems, a Flex company, is headquartered in Fontana, California, with additional production and engineering facilities in Dallas, Texas, and Ontario, Canada.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Systems Controlsystemscontrol.comHQ: Iron Mountain, MI, United StatesReported employees: 501-1,000 | Iron Mountain, MI, United States | 501-1,000 | Exact match | 245 contacts → |
“Systems Control, a Hubbell brand, designs and manufactures turnkey control systems and control relays that are involved in the protection and control of transmission and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  TDM Service & Solutionstdm.energyHQ: Bragança Paulista, BrazilReported employees: 201-500 | Bragança Paulista, Brazil | 201-500 | Exact match | 229 contacts → |
“We have been in the market for over 20 years serving the main industrial and commercial markets, gaining prominent positions in the segments of Engineering, Commissioning of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  PTI Transformersptitransformers.comHQ: Regina, SK, CanadaReported employees: 201-500 | Regina, SK, Canada | 201-500 | Exact match | 204 contacts → |
“With experience manufacturing, repairing and servicing distribution equipment, Partner Technologies Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  RFL A Hubbell Power Systems, Inc. Brand USArflelect.comHQ: Boonton, NJ, United StatesReported employees: 51-200 | Boonton, NJ, United States | 51-200 | Exact match | 199 contacts → |
“RFL is a Hubbell Power Systems brand that provides power line communication equipment and protection solutions, relaying products, application support, and customized systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Gruner AGgruner.deHQ: Wehingen, GermanyReported employees: 1,001-5,000 | Wehingen, Germany | 1,001-5,000 | Exact match | 171 contacts → |
“Gruner is innovative.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Solomon Corporationsolomoncorp.comHQ: Solomon, TN, United StatesReported employees: 501-1,000 | Solomon, TN, United States | 501-1,000 | Exact match | 165 contacts → |
“Solomon Corporation buys, sells, repairs, recycles, and disposes of transformers, regulators and reclosers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  SELCOselco.comHQ: Roskilde, DenmarkReported employees: Not recorded | Roskilde, Denmark | Not recorded | Exact match | 162 contacts → |
“SELCO is a leading manufacturer of protection relays, alarm monitoring and engine & generator control products that are used in marine, offshore and industrial applications.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Esterline Power Systemsesterline.comHQ: Buena Park, CA, United StatesReported employees: 1,001-5,000 | Buena Park, CA, United States | 1,001-5,000 | Exact match | 161 contacts → |
“Esterline Power Systems (Leach International) designs and manufactures a broad range of high-reliable power switching assemblies, relays, and control components and equipment for…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Davenham Switchgear Limiteddavenham.comHQ: Dublin, IrelandReported employees: 201-500 | Dublin, Ireland | 201-500 | Exact match | 153 contacts → |
“Davenham Switchgear Limited, a proud member of Legrand Group are an industry leader in the design, engineering, manufacturing, and commissioning of advanced electrical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Promho Energy Pvt. LTDpromho.comHQ: Chennai, IndiaReported employees: 51-200 | Chennai, India | 51-200 | Exact match | 130 contacts → |
“Service provider on Power system field” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  ESC Engenhariaesc.com.brHQ: Recife, BrazilReported employees: 51-200 | Recife, Brazil | 51-200 | Exact match | 127 contacts → |
“A ESC – Engenharia de Sistemas de Controle Ltda, foi fundada em para atender à demanda existente no mercado local e nacional de desenvolvimento de Sistemas de Controle Digital…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Baslerbasler.comHQ: Highland, IL, United StatesReported employees: 501-1,000 | Highland, IL, United States | 501-1,000 | Exact match | 116 contacts → |
“In 2025, Basler Electric Company was acquired by Littelfuse, Inc, a global, diversified industrial technology manufacturing company dedicated to creating a sustainable, connected…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Protasis SAprotasis.energyHQ: Chalandri, GreeceReported employees: 51-200 | Chalandri, Greece | 51-200 | Exact match | 115 contacts → |
“PROTASIS Engineering & Consulting, headquartered in Athens, Greece was established in 2002 operating in the wider HV and MV energy generation, transmission and distribution…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,130 company matches
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Relay protection system companies: dataset insights
November 6, 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
1,125 records in the displayed employee bands.
5 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 1,130 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: November 6, 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 ↗
Relay protection system companies by location
6 lists · largest firstEvery Relay protection system companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Relay protection system companies based in the United States146
- Relay protection system companies based in India145
- Relay protection system companies based in Brazil90
- Relay protection system companies based in the United Kingdom42
- Relay protection system companies based in Italy37
- Relay protection system companies based in Canada29
Questions about this company list
What does Exact match mean for relay protection system companies?
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 relay protection system companies did RevenueBase find worldwide?
The saved snapshot records 1,130 matching company records, 28,280 tracked contacts and 7,772 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: November 6, 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 relay protection system companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/relay-protection-system-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 relay protection system companies worldwide
RevenueBase records 1,130 matching company records for relay protection system companies worldwide, with 28,280 tracked contacts and 7,772 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: November 6, 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 relay protection system companies 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 | Schweitzer Engineering Laboratories SELselinc.com HQ: Pullman, KY, United StatesReported employees: 5,001-10,000 | Pullman, KY, United States | 5,001-10,000 | Exact match | 6,934 contacts → |
“SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Artechearteche.com HQ: Mungia, SpainReported employees: 1,001-5,000 | Mungia, Spain | 1,001-5,000 | Exact match | 1,119 contacts → |
“The Arteche Group, with 75 years of experience in the electric power industry, offers high-tech solutions and equipment, with a complete range of instrument transformers…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Warrendale, FL, United StatesReported employees: 1,001-5,000 | Warrendale, FL, United States | 1,001-5,000 | Exact match | 1,037 contacts → |
“Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | DEIFdeif.com HQ: Skive, DenmarkReported employees: 501-1,000 | Skive, Denmark | 501-1,000 | Exact match | 642 contacts → |
“For us, sustainable development begins with setting some of the highest standards in energy management and protection – the faster, the better.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Resa Powerresapower.com HQ: Houston, CA, United StatesReported employees: 1,001-5,000 | Houston, CA, United States | 1,001-5,000 | Exact match | 590 contacts → |
“RESA Power is your ONE-STOP for all of your power needs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Riyadh, Saudi ArabiaReported employees: 1,001-5,000 | Riyadh, Saudi Arabia | 1,001-5,000 | Exact match | 585 contacts → |
“SEP - System House Factory for Electrical Panels was established in 2006 centrally situated in the Kingdom's capital, Riyadh, SEP is a leading ISO-certified manufacturer and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Asco Power Technologiesascopower.com HQ: Florham Park, NJ, United StatesReported employees: 1,001-5,000 | Florham Park, NJ, United States | 1,001-5,000 | Exact match | 480 contacts → |
“ASCO Power Technologies has provided power reliability solutions for more than 125 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | MI Electric Brasilmielectric.com.br HQ: Macaé, BrazilReported employees: 201-500 | Macaé, Brazil | 201-500 | Exact match | 398 contacts → |
“MI Electric Brasil is a company specialized in electrical engineering, controls and automation, focusing on provide energy supplies and equipment maintenance solutions in order to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Ashida Electronicsashidaelectronics.com HQ: Thane, IndiaReported employees: 501-1,000 | Thane, India | 501-1,000 | Exact match | 372 contacts → |
“ASHIDA Electronics Pvt Ltd is a leading provider of Protection & Automation solutions in Electrical Transmission & Distribution field.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Nissi Engineering Solution Pvt. LTDnissi.co.in HQ: Chennai, IndiaReported employees: 201-500 | Chennai, India | 201-500 | Exact match | 359 contacts → |
“NISSI is specialized in Testing and Commissioning, Relay testing, and SCADA solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Edmonton, CO, CanadaReported employees: 201-500 | Edmonton, CO, Canada | 201-500 | Exact match | 355 contacts → |
“Delivering confidence for over 40 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Crown Technical Systemscrowntechnicalsystems.com HQ: Fontana, ON, United StatesReported employees: 201-500 | Fontana, ON, United States | 201-500 | Exact match | 273 contacts → |
“Crown Technical Systems, a Flex company, is headquartered in Fontana, California, with additional production and engineering facilities in Dallas, Texas, and Ontario, Canada.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Systems Controlsystemscontrol.com HQ: Iron Mountain, MI, United StatesReported employees: 501-1,000 | Iron Mountain, MI, United States | 501-1,000 | Exact match | 245 contacts → |
“Systems Control, a Hubbell brand, designs and manufactures turnkey control systems and control relays that are involved in the protection and control of transmission and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | TDM Service & Solutionstdm.energy HQ: Bragança Paulista, BrazilReported employees: 201-500 | Bragança Paulista, Brazil | 201-500 | Exact match | 229 contacts → |
“We have been in the market for over 20 years serving the main industrial and commercial markets, gaining prominent positions in the segments of Engineering, Commissioning of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | PTI Transformersptitransformers.com HQ: Regina, SK, CanadaReported employees: 201-500 | Regina, SK, Canada | 201-500 | Exact match | 204 contacts → |
“With experience manufacturing, repairing and servicing distribution equipment, Partner Technologies Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | RFL A Hubbell Power Systems, Inc. Brand USArflelect.com HQ: Boonton, NJ, United StatesReported employees: 51-200 | Boonton, NJ, United States | 51-200 | Exact match | 199 contacts → |
“RFL is a Hubbell Power Systems brand that provides power line communication equipment and protection solutions, relaying products, application support, and customized systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Gruner AGgruner.de HQ: Wehingen, GermanyReported employees: 1,001-5,000 | Wehingen, Germany | 1,001-5,000 | Exact match | 171 contacts → |
“Gruner is innovative.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Solomon Corporationsolomoncorp.com HQ: Solomon, TN, United StatesReported employees: 501-1,000 | Solomon, TN, United States | 501-1,000 | Exact match | 165 contacts → |
“Solomon Corporation buys, sells, repairs, recycles, and disposes of transformers, regulators and reclosers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | SELCOselco.com HQ: Roskilde, DenmarkReported employees: Not recorded | Roskilde, Denmark | Not recorded | Exact match | 162 contacts → |
“SELCO is a leading manufacturer of protection relays, alarm monitoring and engine & generator control products that are used in marine, offshore and industrial applications.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Esterline Power Systemsesterline.com HQ: Buena Park, CA, United StatesReported employees: 1,001-5,000 | Buena Park, CA, United States | 1,001-5,000 | Exact match | 161 contacts → |
“Esterline Power Systems (Leach International) designs and manufactures a broad range of high-reliable power switching assemblies, relays, and control components and equipment for…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Davenham Switchgear Limiteddavenham.com HQ: Dublin, IrelandReported employees: 201-500 | Dublin, Ireland | 201-500 | Exact match | 153 contacts → |
“Davenham Switchgear Limited, a proud member of Legrand Group are an industry leader in the design, engineering, manufacturing, and commissioning of advanced electrical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Promho Energy Pvt. LTDpromho.com HQ: Chennai, IndiaReported employees: 51-200 | Chennai, India | 51-200 | Exact match | 130 contacts → |
“Service provider on Power system field” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | ESC Engenhariaesc.com.br HQ: Recife, BrazilReported employees: 51-200 | Recife, Brazil | 51-200 | Exact match | 127 contacts → |
“A ESC – Engenharia de Sistemas de Controle Ltda, foi fundada em para atender à demanda existente no mercado local e nacional de desenvolvimento de Sistemas de Controle Digital…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Baslerbasler.com HQ: Highland, IL, United StatesReported employees: 501-1,000 | Highland, IL, United States | 501-1,000 | Exact match | 116 contacts → |
“In 2025, Basler Electric Company was acquired by Littelfuse, Inc, a global, diversified industrial technology manufacturing company dedicated to creating a sustainable, connected…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Protasis SAprotasis.energy HQ: Chalandri, GreeceReported employees: 51-200 | Chalandri, Greece | 51-200 | Exact match | 115 contacts → |
“PROTASIS Engineering & Consulting, headquartered in Athens, Greece was established in 2002 operating in the wider HV and MV energy generation, transmission and distribution…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Relay protection system companies: dataset insights
November 6, 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
1,125 records in the displayed employee bands.
5 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 1,130 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: November 6, 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 ↗
Relay protection system companies by location
6 lists · largest firstEvery Relay protection system companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Relay protection system companies based in the United States146
- Relay protection system companies based in India145
- Relay protection system companies based in Brazil90
- Relay protection system companies based in the United Kingdom42
- Relay protection system companies based in Italy37
- Relay protection system companies based in Canada29
Questions about this company list
What does Exact match mean for relay protection system companies?
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 relay protection system companies did RevenueBase find worldwide?
The saved snapshot records 1,130 matching company records, 28,280 tracked contacts and 7,772 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: November 6, 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 relay protection system companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/relay-protection-system-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗