Company lists · Data refreshed September 2026
Top 24 Iso 9001 consulting firms based in Belgium
RevenueBase identified 112 iso 9001 consulting firms headquartered in Belgium as of September 2026 and tracks 568 professional contacts across them, including 210 with verified work emails. Brussels is the largest hub.
This list covers iso 9001 consulting firms headquartered in Belgium, 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 28, 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.
The 24 largest iso 9001 consulting firms based in Belgium
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 70 contacts → | ||||
Strong evidence “QUESS is specialized in auditing, consulting, training and advising regarding to (ISO) managementsystems.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 38 contacts → | ||||
Indirect evidence “Bij Prevom maken we er steevast onze missie van om dag in dag uit bedrijven en individuen te helpen groeien en het beste uit zichzelf te halen.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 36 contacts → | ||||
Indirect evidence “Grâce à nos consultants et à notre large réseau de spécialistes, nous avons développé une expertise de pointe dans une large gamme de services incluant des conseils en stratégie…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 26 contacts → | ||||
Indirect evidence “We are a consultancy company focussed on delivering QP and QA services to our customers.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 22 contacts → | ||||
Partial evidence “With over 30 years of experience, CertUp, part of the Normec Group, is a specialized audit bureau supporting organizations in learning, consulting, and competency development.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 21 contacts → | ||||
Indirect evidence “We Add Value.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 21 contacts → | ||||
Strong evidence “Systeemcertificatie ISO 9001, ISO 14001, IS0 45001 & ISO Audits subsidiesystemen KMO-Portefeuille (VL) & Chèques-Formation (W) Audits in opdracht van sectororganisaties: C4Q…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 21 contacts → | ||||
Indirect evidence “Research & Solutions BVBA, kortweg RESOL, is een professioneel en onafhankelijk adviesbureau inzake Veiligheid, Milieu, Energie en Kwaliteit.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 17 contacts → | ||||
Partial evidence “Our mission is to help companies and organisations develop, implement and improve their management systems, by providing assistance, consulting and training.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 13 contacts → | ||||
Indirect evidence “La société Cplus sprl est une structure dynamique spécialisée dans le conseil, l’audit et la formation en MANAGEMENT de la Qualité; de la Sécurité Alimentaire humaine et animale…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 10 contacts → | ||||
Indirect evidence “Envie de découvrir POMEX?” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 9 contacts → | ||||
Indirect evidence “With more than 100 consultants in Belgium and the Netherlands, we have been supporting our clients for over 30 years in achieving safe and fair products.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 9 contacts → | ||||
Indirect evidence “Forma ondersteunt u in het implementeren en onderhouden van uw managementsystemen of andere begeleidings- of opleidingsvragen omtrent kwaliteit, veiligheid, milieu en…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 9 contacts → | ||||
Indirect evidence “Bureau de conseils en comptabilité, gestion d'affaires et fiscalité des entreprises commerciales et des associations belges ou internationales.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 8 contacts → | ||||
Indirect evidence “BatiGrade est un bureau d’études spécialisé dans l’ ́́ des bâtiments en, actif tant dans le secteur ́ que et.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Indirect evidence “Wij voorzien audits, consultancy, support en opleidingen op maat van jouw behoeften.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Indirect evidence “At your company facilities or in inspiring locations selected together, we will support you and your teams, to learn, to be trained and to implement the Excellence concepts within…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 contacts → | ||||
Partial evidence “DUBIMAX engineering is een veelzijdig ISO-gecertificeerd studie- en ingenieursbureau gevestigd in Hasselt dat u van a tot z bijstaat in de realisatie van uw bouwproject.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Indirect evidence “Advies op maat voor de KMO!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Indirect evidence “Eva Moens Consult is een toonaangevend opleidings- en adviesbureau, gespecialiseerd in HACCP, voedselveiligheid en kwaliteitszorg.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Partial evidence “ANalysis for Utmost Business Improvement Systems - CONSulting & managemENT Activités : Interim Management - Consultance - Formation - Mise en place de système de management de la…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Indirect evidence “Your partner in - Defining strategic mission and vision - Corporate governance - Improvement and optimisation of business processes, organisation and quality- Implementation of…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “Depuis ANTICIP CONSULT conseille, audite, forme et accompagne les entreprises dans leurs projets d'organisation et de management, principalement dans les domaines de la qualité…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Quality@Speed (Q@S) is an innovative quality assurance consultancy company dedicated to quality at the beginning of the SDLC and is working, in close collaboration with their…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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 consulting firms. 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 consulting firms.
- Partial evidence
- Its own public description names part of iso 9001 consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name iso 9001 consulting firms. 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 24 of 112 iso 9001 consulting firms based in Belgium
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 210 reachable decision-makers.
Free signup · no credit card
Iso 9001 consulting firms based in Belgium at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Belgium, so it is reported there. Company counts and contact totals on this page are exact for Belgium, over 112 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 consulting firms, 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 Belgium whose own description of what they do matches “iso 9001 consulting firms”. 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 consulting firms), 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 consulting firms, and records with no verified work email. Companies headquartered outside Belgium 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, 210 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 28, 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 consulting firms, 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 consulting firms are there based in Belgium?
RevenueBase identified 112 iso 9001 consulting firms headquartered in Belgium 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?
QUESS, headquartered in Maldegem, tops this list with the largest team on record.
Which city has the most iso 9001 consulting firms?
Brussels leads with 7 headquartered companies, followed by Ghent (3) and Sint-Katelijne-Waver (3).
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 210 verified decision-maker contacts tracked across these 112 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 112 iso 9001 consulting firms based in Belgium. Start with a free account, no credit card.
Download this list →Related lists
Iso 9001 consulting firms by geography
- Iso 9001 consulting firms based in Melbourne, Australia
- Iso 9001 consulting firms based in Sydney, Australia
- Iso 9001 consulting firms based in Belo Horizonte, Brazil
- Iso 9001 consulting firms based in Curitiba, Brazil
- Iso 9001 consulting firms based in Rio De Janeiro, Brazil
- Iso 9001 consulting firms based in Sao Paulo, Brazil
- Iso 9001 consulting firms based in Lyon, France
- Iso 9001 consulting firms based in Paris, France
- Iso 9001 consulting firms based in Ahmedabad, India
- Iso 9001 consulting firms based in Bangalore, India
- Iso 9001 consulting firms based in Mumbai, India
- Iso 9001 consulting firms based in New Delhi, India
Browse the directory
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Iso 9001 consulting firms based in Melbourne, Australia
- Iso 9001 consulting firms based in Sydney, Australia
- Iso 9001 consulting firms based in Belo Horizonte, Brazil
- Iso 9001 consulting firms based in Curitiba, Brazil
- Iso 9001 consulting firms based in Rio De Janeiro, Brazil
- Iso 9001 consulting firms based in Sao Paulo, Brazil