Company lists · Data refreshed September 2026

Top 25 Electrical testing and diagnostics based in the Netherlands

Name: Electrical testing and diagnostics based in the Netherlands
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 83 companies tracked

RevenueBase identified 83 electrical testing and diagnostics headquartered in the Netherlands as of September 2026 and tracks 280 professional contacts across them, including 108 with verified work emails. Ak is the largest hub.

This list covers electrical testing and diagnostics headquartered in the Netherlands, 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

83Companies

280Contacts tracked

108Verified emails

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The 25 largest electrical testing and diagnostics based in the Netherlands

Ranked by team size

Top 25 of 83 electrical testing and diagnostics based in the Netherlands, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical testing and diagnostics: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Synorga	Indirect evidence	Barendrecht, NetherlandsHQ checked Sep 19, 2026	51-200	41 contacts →
	Indirect evidence “De Synorga groep is al ruim 50 jaar specialist in elektrotechniek.” Source: RevenueBase Database · checked Sep 19, 2026
2	Elmon B.V	Indirect evidence	Groot-ammers, NetherlandsHQ checked Sep 19, 2026	51-200	27 contacts →
	Indirect evidence “Elmon is een dynamisch en flexibel bedrijf, met als doel producten en diensten te leveren die zich onderscheiden door kwaliteit en innovatie.” Source: RevenueBase Database · checked Sep 19, 2026
3	JR Infra B.V	Indirect evidence	Alblasserdam, NetherlandsHQ checked Sep 19, 2026	1-10	26 contacts →
	Indirect evidence “JR Infra BV is gespecialiseerd in:* Bedieningshandelingen in MS en LS * Testen en inbedrijfstelling ( 0,1 hertz en Wic instromen )* Grootverbruik elektrameters plaatsen en…” Source: RevenueBase Database · checked Sep 19, 2026
4	Botermans Elektrotechniek BV	Indirect evidence	Rijnsburg, NetherlandsHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Technisch installatiebedrijf De elektricien voor al uw elektrotechnische installaties Botermans Elektrotechniek is een technisch installatiebedrijf uit Valkenburg (Zuid-Holland).” Source: RevenueBase Database · checked Sep 19, 2026
5	AET Energy Efficiency BV	Indirect evidence	Purmerend, NetherlandsHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “AET Energy Efficiency BV is een onafhankelijk en objectief elektrotechnisch SCIOS SCOPE 8, SCIOS SCOPE 10, Scope scope 12, NEN 3140, NEN 1010 inspectie- en adviesbureau in…” Source: RevenueBase Database · checked Sep 19, 2026
6	Onneweer Techniek B.V	Indirect evidence	Zwaag, NetherlandsHQ checked Sep 19, 2026	1-10	8 contacts →
	Indirect evidence “Elektrotechniek voor woningbouw, zorginstellingen, VVE’s en aannemers Onneweer Techniek is een begrip op het gebied van elektrotechniek in Noord-Holland en we bestaan sinds 1928.” Source: RevenueBase Database · checked Sep 19, 2026
7	Cequra Inspectie & Energieadvies	Indirect evidence	Milsbeek, NetherlandsHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Binnen elektrotechniek zijn afspraken over veiligheid, inspecteren, installatievoorschriften en werkvoorschriften heel belangrijk.” Source: RevenueBase Database · checked Sep 19, 2026
8	Fedu-Solutions B.V	Indirect evidence	Lisse, NetherlandsHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
9	Fockert Electro	Indirect evidence	Vuren, NetherlandsHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Zowel in het bedrijfsleven als thuis maken elektronische voorzieningen ons leven gemakkelijker en prettiger.” Source: RevenueBase Database · checked Sep 19, 2026
10	DE Jong EKW B.V	Indirect evidence	Apeldoorn, NetherlandsHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Bij De Jong Elektra & Kluswerken kunt u terecht voor de uitvoering van diverse elektrawerken.” Source: RevenueBase Database · checked Sep 19, 2026
11	J. Kramer Elektrotechniek	Indirect evidence	Geldrop, NetherlandsHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Wij bieden u een compleet pakket van veiligheid en elektriciteit.” Source: RevenueBase Database · checked Sep 19, 2026
12	Dolman Techniek	Indirect evidence	Gouda, NetherlandsHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Bij Dolman Techniek kunt u terecht voor het aanleggen, renoveren of uitbreiden van bijvoorbeeld uw elektrotechnische installatie, datanetwerken en inbraak, brand en…” Source: RevenueBase Database · checked Sep 19, 2026
13	Velux Elektrotechniek	Indirect evidence	Pijnacker, NetherlandsHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Velux Elektrotechniek – jouw partner in slimme elektrotechniek Sinds 1965 helpt Velux Elektrotechniek uit Pijnacker zowel particulieren als bedrijven met veilige, duurzame en…” Source: RevenueBase Database · checked Sep 19, 2026
14	Sijts Elektro	Indirect evidence	Alkmaar, NetherlandsHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Sijts Elektro heeft 20 jaar lang ervaring in elektro en instrumentatie werkzaamheden in de olie en gas sector.” Source: RevenueBase Database · checked Sep 19, 2026
15	JFI Techniek	Indirect evidence	Denekamp, NetherlandsHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “JFi techniek is een elektrotechnisch inspectiebedrijf.” Source: RevenueBase Database · checked Sep 19, 2026
16	ETB Monty's BV	Indirect evidence	Rockanje, NetherlandsHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Monty’s geeft u een betrouwbaar advies voor de inrichting van uw elektrotechnische installaties in en om het huis.” Source: RevenueBase Database · checked Sep 19, 2026
17	E-Check	Indirect evidence	Zaltbommel, NetherlandsHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “E-Check: Specialist in Elektrische Veiligheid en Inspectie E-Check is een dynamische en zelfstandige onderneming met uitgebreide expertise in de elektrotechnische inspectiebranche.” Source: RevenueBase Database · checked Sep 19, 2026
18	Oppelaar Elektro BV	Indirect evidence	Elst (u), NetherlandsHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Oppelaar Elektro BV is een ervaren partner in het ontwerpen, aanleggen en onderhouden van diverse elektrotechnische disciplines, waaronder: Elektrotechnische installaties…” Source: RevenueBase Database · checked Sep 19, 2026
19	Eder Electro	Indirect evidence	Udenhout, NetherlandsHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “Wij zijn een dynamisch bedrijf dat zich bezig houdt op het gebied van de elektrotechniek.” Source: RevenueBase Database · checked Sep 19, 2026
20	Bransen Group Electra	Indirect evidence	Naaldwijk, NetherlandsHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Voor Bransen Group Electra is geen uitdaging te groot op het gebied van elektrotechniek Als dynamische partner ontzorgen wij bedrijven en particulieren bij de realisatie van hun…” Source: RevenueBase Database · checked Sep 19, 2026
21	Liefting Elektrotechniek	Indirect evidence	Barneveld, NetherlandsHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Bij Liefting Elektrotechniek kunt u terecht voor al uw elektrotechnische werkzaamheden.” Source: RevenueBase Database · checked Sep 19, 2026
22	Pentaq Energy Solutions B.V	Indirect evidence	Valkenswaard, NetherlandsHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Pentaq Energy Solutions is een onafhankelijk meet- en adviesbureau gevestigd in Valkenswaard, sinds 2006 actief in de energiebranche en sinds 2022 SCIOS-gecertificeerd.” Source: RevenueBase Database · checked Sep 19, 2026
23	TIVAK	Indirect evidence	Hattem, NetherlandsHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Snel, flexibel en betrouwbaar Waarmee kunnen we jou helpen?” Source: RevenueBase Database · checked Sep 19, 2026
24	Bouwmeesters Techniek	Indirect evidence	Diemen, NetherlandsHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “Bouwmeesters Techniek heeft jarenlange ervaring in de installatie, reparatie en onderhoud van elektrische installaties.” Source: RevenueBase Database · checked Sep 19, 2026
25	QLP Elektrotechniek	Indirect evidence	Houten, NetherlandsHQ checked Sep 19, 2026	11-50	2 contacts →
	Indirect evidence “Wij bieden een breed scala aan hoogwaardige elektrotechnische oplossingen, waaronder: Elektrische Installaties: Van ontwerp tot installatie en onderhoud, wij zijn gespecialiseerd…” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: electrical testing and diagnostics. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names electrical testing and diagnostics.
Partial evidence: Its own public description names part of electrical testing and diagnostics, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical testing and diagnostics. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 83 electrical testing and diagnostics based in the Netherlands

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Electrical testing and diagnostics based in the Netherlands at a glance

As of Sep 19, 2026

38.6%Verified-email coverage

3.4Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · Ak

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured worldwide rather than for Netherlands, so it is reported there. Company counts and contact totals on this page are exact for Netherlands, over 83 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 testing and diagnostics, 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 the Netherlands whose own description of what they do matches “electrical testing and diagnostics”. 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 testing and diagnostics), 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 testing and diagnostics, and records with no verified work email. Companies headquartered outside Netherlands 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, 108 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 testing and diagnostics, 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 testing and diagnostics are there based in the Netherlands?

RevenueBase identified 83 electrical testing and diagnostics headquartered in the Netherlands 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?

Synorga, headquartered in Le, tops this list with the largest team on record.

Which city has the most electrical testing and diagnostics?

Ak leads with 2 headquartered companies, followed by Ee (2) and Hengelo (2).

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 108 verified decision-maker contacts tracked across these 83 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.