Company lists · Data refreshed September 2026

Top 25 Iso 9001 certification companies based in Germany

Name: Iso 9001 certification companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 208 companies tracked

RevenueBase identified 208 iso 9001 certification companies headquartered in Germany as of September 2026 and tracks 13,424 professional contacts across them, including 2,458 with verified work emails. Berlin is the largest hub.

This list covers iso 9001 certification companies headquartered in Germany, 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 20, 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 20, 2026 86% judged on-target in blind review

208Companies

13,424Contacts tracked

2,458Verified emails

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The 25 largest iso 9001 certification companies based in Germany

Ranked by team size

Top 25 of 208 iso 9001 certification companies based in Germany, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to iso 9001 certification companies: 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	TÜV Rheinland Group	Indirect evidence	Cologne, GermanyHQ checked Sep 20, 2026	10001+	7,928 contacts →
	Indirect evidence “Neutral, independent third party For more than 150 years, TÜV Rheinland has stood for ensuring quality, safety, and efficiency in conjunction with people, the environment, and…” Source: RevenueBase Database · checked Sep 20, 2026
2	Formel D Group	Partial evidence	Köln, GermanyHQ checked Sep 20, 2026	10001+	2,758 contacts →
	Partial evidence “Formel D is a global service provider for testing, inspection & certification.” Source: RevenueBase Database · checked Sep 20, 2026
3	DQS	Indirect evidence	Frankfurt Am Main, GermanyHQ checked Sep 20, 2026	1,001-5,000	1,424 contacts →
	Indirect evidence “DQS – Leveraging Quality, Driving Success.” Source: RevenueBase Database · checked Sep 20, 2026
4	TÜV Nord Cert	Partial evidence	Essen, GermanyHQ checked Sep 20, 2026	10001+	252 contacts →
	Partial evidence “TÜV NORD and its testing, inspection, and certification companies make our world safer and are a driving force for global innovation.” Source: RevenueBase Database · checked Sep 20, 2026
5	Redi-Group Gmbh	Indirect evidence	Langenfeld (rheinland), GermanyHQ checked Sep 20, 2026	1,001-5,000	109 contacts →
	Indirect evidence “We, the redi-Group, are a global provider of project- and quality management services in the automotive- and other quality-oriented industries.” Source: RevenueBase Database · checked Sep 20, 2026
6	Gutcert Gmbh	Partial evidence	Berlin, GermanyHQ checked Sep 20, 2026	51-200	91 contacts →
	Partial evidence “In 1997, the GUTcertifizierungsgesellschaft für Managementsysteme (GUT Certification Company for Management Systems) was founded - separated and spun off from the engineering and…” Source: RevenueBase Database · checked Sep 20, 2026
7	GXP Engaged	Indirect evidence	Munich, GermanyHQ checked Sep 20, 2026	51-200	43 contacts →
	Indirect evidence “Our GxP quality is guided by trusted independence and proven quality, earned through decades of objective auditing, and rooted in the latest global and local regulatory…” Source: RevenueBase Database · checked Sep 20, 2026
8	DIN Certco	Indirect evidence	Berlin, GermanyHQ checked Sep 20, 2026	51-200	39 contacts →
	Indirect evidence “info@dincertco.de +49 30 7562-1131 DIN CERTCO is your partner for all aspects of conformity assessment.” Source: RevenueBase Database · checked Sep 20, 2026
9	SLG Prüf- UND Zertifizierungs Gmbh	Indirect evidence	Hartmannsdorf, GermanyHQ checked Sep 20, 2026	51-200	25 contacts →
	Indirect evidence “SLG Prüf- und Zertifizierungs GmbH is a testing laboratory based out of Burgstädter Str.” Source: RevenueBase Database · checked Sep 20, 2026
10	Qas-Company AG	Partial evidence	München, GermanyHQ checked Sep 20, 2026	11-50	24 contacts →
	Partial evidence “Service for our customers: Certifications: Preparation for certification at a fixed price.” Source: RevenueBase Database · checked Sep 20, 2026
11	Agrizert Zertifizierungs Gmbh	Indirect evidence	Bonn, GermanyHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “Als lösungsorientierte Zertifizierungsstelle stärken wir das Vertrauen in sichere Produkte und entwickeln innovative Lösungen für eine nachhaltige Zukunft von Mensch, Tier, Umwelt…” Source: RevenueBase Database · checked Sep 20, 2026
12	Incantis Gmbh	Indirect evidence	Bayreuth, GermanyHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “There’s no such thing as “one-size-fits-all” quality management with us.” Source: RevenueBase Database · checked Sep 20, 2026
13	Clarcert Gmbh	Indirect evidence	Neu Ulm, GermanyHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Die ClarCert GmbH ist eine unabhängige Zertifizierungsstelle und führend in ausgewählten Gebieten der Qualitätssicherung.” Source: RevenueBase Database · checked Sep 20, 2026
14	Dmsz Deutsche Managementsystem Zertifizierungsgesellschaft MBH	Indirect evidence	Griesheim, GermanyHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “AUDITS.” Source: RevenueBase Database · checked Sep 20, 2026
15	ESC Cert Gmbh	Partial evidence	Kassel, GermanyHQ checked Sep 20, 2026	11-50	10 contacts →
	Partial evidence “ESC focuses on the certification of companies according to international standards such as quality, safety and environmental management systems.” Source: RevenueBase Database · checked Sep 20, 2026
16	Regular Services RS Gmbh	Indirect evidence	Munich, GermanyHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “regular services ist ein weltweit agierendes Beratungsunternehmen für Quality Management, Approval und Training für Medizinprodukthersteller.” Source: RevenueBase Database · checked Sep 20, 2026
17	Ifu-Cert Gmbh Zertifizierungsgesellschaft UND Umweltgutachterorganisation	Indirect evidence	Hannover, GermanyHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “IFU-CERT GmbH Zertifizierungsgesellschaft und Umweltgutachterorganisation Wir sind Umweltgutachtende und Sachverständige für Energie, Nachhaltigkeit und Umweltschutz Impressum…” Source: RevenueBase Database · checked Sep 20, 2026
18	MVI Promind Gmbh	Indirect evidence	München, GermanyHQ checked Sep 20, 2026	51-200	9 contacts →
	Indirect evidence “Over 50 years of company history characterize our success and expertise.” Source: RevenueBase Database · checked Sep 20, 2026
19	Certivation Gmbh	Indirect evidence	Wietmarschen, GermanyHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “As a subsidiary of the globally successful Rosenxt Group, CERTivation offers you not only internationally recognized certificates for your management system but also the advantage…” Source: RevenueBase Database · checked Sep 20, 2026
20	ICG Zertifizierung Gmbh	Indirect evidence	Chemnitz, GermanyHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “Die ICG Zertifizierung GmbH ist Ihr kompetenter Partner zur Zertifizierung Ihres Unternehmens.” Source: RevenueBase Database · checked Sep 20, 2026
21	Zer-Qms Zertifizierungsstelle Gmbh	Indirect evidence	Köln, GermanyHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “Die ZER-QMS, Zertifizierungsstelle, Qualitäts- und Umweltgutachter GmbH wurde im August 1994 als Verein ins Leben gerufen.” Source: RevenueBase Database · checked Sep 20, 2026
22	GAM Consulting & Services Gmbh	Indirect evidence	Rüsselsheim Am Main, GermanyHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “GAM Consulting was founded in Cassino (Italy) in 2001 for providing consultancy and services in the field of quality management, to companies operating in the automotive industry.” Source: RevenueBase Database · checked Sep 20, 2026
23	EQM Lehmann Gmbh & Co. KG	Indirect evidence	Kamenz, GermanyHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “EQM Lehmann GmbH & Co.” Source: RevenueBase Database · checked Sep 20, 2026
24	Öhmi Eurocert Gmbh	Indirect evidence	Magdeburg, GermanyHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “ÖHMI EuroCert® GmbH ist eine akkreditierte Zertifizierungsstelle mit Schwerpunkten in den Bereichen Qualität, Sicherheit, IT, Energie, Umwelt- und Arbeitsschutz.” Source: RevenueBase Database · checked Sep 20, 2026
25	Diqz Deutsches Institut FÜR Qualität & Zertifizierung	Indirect evidence	Kiel, GermanyHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Zertifizierungen von DIQZ stehen für Neutralität, Transparenz und nachhaltige Prozessverbesserungen Das Deutsche Institut für Qualität & Zertifizierung (DIQZ) hat sich auf…” Source: RevenueBase Database · checked Sep 20, 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: iso 9001 certification companies. 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 iso 9001 certification companies.
Partial evidence: Its own public description names part of iso 9001 certification companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name iso 9001 certification companies. 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 208 iso 9001 certification companies based in Germany

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Iso 9001 certification companies based in Germany at a glance

As of Sep 20, 2026

18.3%Verified-email coverage

64.5Average contacts per company

1-10Median size (employees)

6.2%Largest-city concentration · Berlin

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

130

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 208 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 iso 9001 certification companies, 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 Germany whose own description of what they do matches “iso 9001 certification companies”. 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 iso 9001 certification companies), 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 iso 9001 certification companies, and records with no verified work email. Companies headquartered outside Germany 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, 2,458 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 20, 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 iso 9001 certification companies, 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 iso 9001 certification companies are there based in Germany?

RevenueBase identified 208 iso 9001 certification companies headquartered in Germany 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?

TÜV Rheinland Group, headquartered in Cologne, tops this list with the largest team on record.

Which city has the most iso 9001 certification companies?

Berlin leads with 13 headquartered companies, followed by Munchen (7) and Stuttgart (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 2,458 verified decision-maker contacts tracked across these 208 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 20, 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.