Company lists · Data refreshed September 2026

Top 23 Electrical transmission equipment suppliers based in Poland

RevenueBase identified 86 electrical transmission equipment suppliers headquartered in Poland as of September 2026 and tracks 1,170 professional contacts across them, including 238 with verified work emails. Katowice is the largest hub.

This list covers electrical transmission equipment suppliers headquartered in Poland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
86Companies
1,170Contacts tracked
238Verified emails
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The 23 largest electrical transmission equipment suppliers based in Poland

Ranked by team size
Top 23 of 86 electrical transmission equipment suppliers based in Poland, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical transmission equipment suppliers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceWieliczka, PolandHQ checked Sep 19, 202651-200108 contacts →

Indirect evidence

“Elsta was established in 1988.”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceWarszawa, PolandHQ checked Sep 19, 2026201-50079 contacts →

Partial evidence

“ELEKTROMETAL ENERGETYKA SA provides solutions for electrical power engineering.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceCzerwonak, PolandHQ checked Sep 19, 202651-20047 contacts →

Indirect evidence

“Power Engineering Transformatory Sp.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidencePępowo, PolandHQ checked Sep 19, 2026201-50031 contacts →

Indirect evidence

“LAMEL ROZDZIELNICE Sp.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceLimanowa, PolandHQ checked Sep 19, 2026201-50027 contacts →

Indirect evidence

“English version] ZUP Emiter Sp.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceKębłowo, PolandHQ checked Sep 19, 2026201-50026 contacts →

Indirect evidence

“Naszą działalnością są prace elektryczne i elektroinstalacyjne, budownictwo elektroenergetyczne, telekomunikacyjne i przemysłowe.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceNowa Wieś Lęborska, PolandHQ checked Sep 19, 202651-20026 contacts →

Indirect evidence

“Zakład Wytwórczy Aparatów Elektrycznych sp.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceMikołów, PolandHQ checked Sep 19, 2026201-50025 contacts →

Indirect evidence

“The Transformers Factory in Mikolow is one of the leading manufacturers of medium-voltage transformers in Poland.”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceBieżanów-prokocim, PolandHQ checked Sep 19, 202611-5024 contacts →

Indirect evidence

“TD ENERGO Sp.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceGliwice, PolandHQ checked Sep 19, 202611-5019 contacts →

Indirect evidence

“Nasza firma to profesjonalny wykonawca w zakresie projektowania, dostaw i montażu urządzeń rozdzielczych, aparatury dla sieci i instalacji elektroenergetycznych na wszystkich…”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceToruń, PolandHQ checked Sep 19, 202611-5014 contacts →

Indirect evidence

“Zajmujemy się kompleksowym wykonaniem energetyki, projektujemy / budujemy linie i stacje energetyczne również pod klucz.”

Source: RevenueBase Database · checked Sep 19, 2026
12Partial evidenceŁódź, PolandHQ checked Sep 19, 202651-20012 contacts →

Partial evidence

“HAPAM produces high voltage disconnectors and earthing switches for outdoor and indoor substations (voltage range 50kV – 800kV) and has supplied more than disconnectors in over…”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceŁódź, PolandHQ checked Sep 19, 202651-2009 contacts →

Indirect evidence

“Emonter Group to miejsce lub połączenie w której inżynieria spotyka się z praktyką, a dobre decyzje techniczne budują bezpieczeństwo i niezawodność inwestycji.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceKatowice, PolandHQ checked Sep 19, 2026201-5009 contacts →

Indirect evidence

“Elbud Katowice – firma z siedzibą w Katowicach działająca nieprzerwanie od 1947 r, oferuje doświadczenie i swoje zasoby do wykonania usług z zakresu budowy infrastruktury dla…”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceŁapy, PolandHQ checked Sep 19, 202611-507 contacts →

Indirect evidence

“Jesteśmy dynamiczną firmą, która od 2015 roku z sukcesem działa na rynku branży elektrycznej.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceLublin, PolandHQ checked Sep 19, 202651-2005 contacts →

Indirect evidence

“Firma ELEKTRO-SPARK ma swój własny zakład produkcyjny, w którym wytwarzane są kontenerowe stacje transformatorowe w obudowie betonowej, złącza kablowe średniego napięcia…”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidencePolandHQ checked Sep 19, 202651-2004 contacts →

Indirect evidence

“The main direction of our company is production of LV/MV switchboard, according to individual needs for the energy, industrial and civil sectors.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceNowa Wieś Lęborska, PolandHQ checked Sep 19, 202611-504 contacts →

Indirect evidence

“What are the things we do?”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceOchota, PolandHQ checked Sep 19, 202611-503 contacts →

Indirect evidence

“Realizujemy prace sieciowe i instalacyjne, prowadzimy pełny proces w zakresie projektowania sieci elektroenergetycznych SN, stacji i rozdzielni elektroenergetycznych SN/nn po…”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceToruń, PolandHQ checked Sep 19, 20261-103 contacts →

Indirect evidence

“Jesteśmy firmą inżynierską zajmującą się tworzeniem zaawansowanych dokumentacji technicznych rozdzielnic niskiego i średniego napięcia oraz szaf sterowniczych i automatyki.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceChełm, PolandHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“Power Grids Sp.”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceGłogów, PolandHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

“We offer machines for the construction of high and low voltage lines with cable trailers and winches.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceWroclaw, PolandHQ checked Sep 19, 202611-501 contacts →

Indirect evidence

“We offer a wide range of products useful in power, railways, and industry."With determination, commitment and extensive experience in the industry we have created the INVOLT…”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 23 of 86 electrical transmission equipment suppliers based in Poland

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Electrical transmission equipment suppliers based in Poland at a glance

As of Sep 19, 2026
20.3%Verified-email coverage
13.6Average contacts per company
11-50Median size (employees)
7.0%Largest-city concentration · Katowice
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
33
11-50
19
51-200
20
201-500
11
501-1,000
2
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Poland, so it is reported there. Company counts and contact totals on this page are exact for Poland, over 86 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among electrical transmission equipment suppliers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Poland whose own description of what they do matches “electrical transmission equipment suppliers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names electrical transmission equipment suppliers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among electrical transmission equipment suppliers, and records with no verified work email. Companies headquartered outside Poland are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 238 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names electrical transmission equipment suppliers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many electrical transmission equipment suppliers are there based in Poland?

RevenueBase identified 86 electrical transmission equipment suppliers headquartered in Poland as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

ELSTA, headquartered in Wieliczka, tops this list with the largest team on record.

Which city has the most electrical transmission equipment suppliers?

Katowice leads with 6 headquartered companies, followed by Lodz (6) and Warszawa (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 238 verified decision-maker contacts tracked across these 86 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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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 Smart Search, 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.