Company lists · Data refreshed September 2026

Top 25 Iso certification consulting firms based in Portugal

Name: Iso certification consulting firms based in Portugal
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 257 companies tracked

RevenueBase identified 257 iso certification consulting firms headquartered in Portugal as of September 2026 and tracks 3,522 professional contacts across them, including 422 with verified work emails. Lisboa is the largest hub.

This list covers iso certification consulting firms headquartered in Portugal, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

257Companies

3,522Contacts tracked

422Verified emails

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The 25 largest iso certification consulting firms based in Portugal

Ranked by team size

Top 25 of 257 iso certification consulting firms based in Portugal, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to iso certification consulting firms: 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	IEP	Indirect evidence	Matosinhos, PortugalHQ checked Sep 28, 2026	201-500	339 contacts →
	Indirect evidence “Fundado em 1981, o IEP é uma empresa com sólidas raízes, reconhecida no mercado como uma infraestrutura tecnológica pautada pela inovação, competência e qualidade.” Source: RevenueBase Database · checked Sep 28, 2026
2	APCER	Partial evidence	Porto, PortugalHQ checked Sep 28, 2026	51-200	199 contacts →
	Partial evidence “APCER, with more than 25 years of activity, provides certification, auditing and training solutions in the most diverse sectors of activity.” Source: RevenueBase Database · checked Sep 28, 2026
3	Global Surveys GS	Indirect evidence	Porto, PortugalHQ checked Sep 28, 2026	201-500	148 contacts →
	Indirect evidence “Global Surveys is a group of companies “Limited Liability Companies” established in 2012, has branches and representations that cover over 22 countries in the MENA region, Europe…” Source: RevenueBase Database · checked Sep 28, 2026
4	XZ Consultores,sa	Indirect evidence	Braga, PortugalHQ checked Sep 28, 2026	11-50	141 contacts →
	Indirect evidence “Criada em 1992 por Júlio Faceira.” Source: RevenueBase Database · checked Sep 28, 2026
5	Pontual	Indirect evidence	Santa Maria Da Feira, PortugalHQ checked Sep 28, 2026	51-200	109 contacts →
	Indirect evidence “A PONTUAL IT Business Solutions é uma empresa de consultoria e desenvolvimento de software com um forte poder de expansão e experiência consolidada na implementação de sistemas…” Source: RevenueBase Database · checked Sep 28, 2026
6	Itecons	Indirect evidence	Coimbra, PortugalHQ checked Sep 28, 2026	51-200	70 contacts →
	Indirect evidence “Itecons - Construção \| Energia \| Ambiente \| Sustentabilidade O Itecons - Instituto de Investigação e Desenvolvimento Tecnológico para a Construção, Energia, Ambiente e…” Source: RevenueBase Database · checked Sep 28, 2026
7	Workview	Indirect evidence	Quinchães, PortugalHQ checked Sep 28, 2026	51-200	65 contacts →
	Indirect evidence “A WORKVIEW desenvolve a sua atividade na prestação de serviços externos de Segurança e Saúde no Trabalho, Consultoria e Formação.” Source: RevenueBase Database · checked Sep 28, 2026
8	Triangulu	Indirect evidence	Lisboa, PortugalHQ checked Sep 28, 2026	501-1,000	61 contacts →
	Indirect evidence “Formação e Consultoria em Engenharia; Qualidade; Ambiente e Segurança.” Source: RevenueBase Database · checked Sep 28, 2026
9	D8 Solutions	Indirect evidence	Braga, PortugalHQ checked Sep 28, 2026	51-200	53 contacts →
	Indirect evidence “Founded in Braga in 2013, D8 Solutions began activity with the staff and facilities suited to the most specialized in the industrial sector, with a strong team and a solid…” Source: RevenueBase Database · checked Sep 28, 2026
10	GTI	Partial evidence	Braga, PortugalHQ checked Sep 28, 2026	11-50	49 contacts →
	Partial evidence “A GTI é uma empresa de consultoria e formação profissional constituída em 1992 cujo Sistema de Gestão encontra-se certificado pela NP EN ISO NP EN ISO 14001:2004, NP 4397:2001…” Source: RevenueBase Database · checked Sep 28, 2026
11	Certis Controlo E Certificação, LDA	Partial evidence	Évora, PortugalHQ checked Sep 28, 2026	11-50	34 contacts →
	Partial evidence “CERTIS \| A QIMA Company is an accredited control and certification company specialized in solutions that promote trust, quality, safety, and sustainability.” Source: RevenueBase Database · checked Sep 28, 2026
12	Alves & Rasteiro Engenharia, Consultoria E Formação	Partial evidence	Viseu, PortugalHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “Alves & Rasteiro is a company providing Engineering, Consulting and Training services.” Source: RevenueBase Database · checked Sep 28, 2026
13	Strongstep	Partial evidence	Porto, PortugalHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Strongstep offers a unique combination of consulting services to help companies adopt international best practices in areas such as software development and engineering…” Source: RevenueBase Database · checked Sep 28, 2026
14	Naturalfa	Indirect evidence	Gondomar, PortugalHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “Quer que a sua empresa ganhe reconhecimento e confiança no mercado?” Source: RevenueBase Database · checked Sep 28, 2026
15	IQAS	Indirect evidence	Faro, PortugalHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “At IQAS, we’re more than just an inspection company.” Source: RevenueBase Database · checked Sep 28, 2026
16	Vexillum	Indirect evidence	Agualva-cacém, PortugalHQ checked Sep 28, 2026	1-10	16 contacts →
	Indirect evidence “A Vexillum é uma empresa Portuguesa de Consultoria de Serviços de apoio à Gestão, que atua nos domínios da Qualidade, Ambiente, Saúde e Segurança e Responsabilidade Social.” Source: RevenueBase Database · checked Sep 28, 2026
17	S3d-Software, Training And Services	Indirect evidence	Marinha Grande, PortugalHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “We are an Engineering and Industrial Consultancy company, capable to provide Integrated Solutions for different industries, interconnected from the product design, engineering…” Source: RevenueBase Database · checked Sep 28, 2026
18	EIC	Indirect evidence	Lisbon, PortugalHQ checked Sep 28, 2026	51-200	13 contacts →
	Indirect evidence “A eiC é uma sociedade anónima que resultou da junção entre entidades reconhecidas em diversos sectores e pessoas individuais com larga experiência na atividade de certificação em…” Source: RevenueBase Database · checked Sep 28, 2026
19	MEDAM	Indirect evidence	Guimarães, PortugalHQ checked Sep 28, 2026	1-10	12 contacts →
	Indirect evidence “Constituída em a MEDAM tem consolidado a sua atividade no âmbito da Segurança e Saúde no Trabalho, Segurança Alimentar, Gestão Ambiental, Gestão Industrial e Certificação.” Source: RevenueBase Database · checked Sep 28, 2026
20	Edifícios Saudáveis Consultores Healthy Buildings Consultants	Indirect evidence	Matosinhos, PortugalHQ checked Sep 28, 2026	1-10	11 contacts →
	Indirect evidence “Edifícios Saudáveis Consultores - Ambiente e Energia SA A Edifícios Saudáveis nasceu em 1996 vocacionada para as temáticas da sustentabilidade ambiental em edifícios (eficiência…” Source: RevenueBase Database · checked Sep 28, 2026
21	CTCOR	Partial evidence	Santa Maria De Lamas, PortugalHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Diagnóstico, Consultoria e Auditoria- Código Internacional das Práticas Rolheiras – CIPR - Sistemas de Gestão da Qualidade – ISO 9001 - Sistemas de Gestão Ambiental – ISO 14001 -…” Source: RevenueBase Database · checked Sep 28, 2026
22	Qualiwork	Indirect evidence	Lisboa, PortugalHQ checked Sep 28, 2026	1-10	11 contacts →
	Indirect evidence “A QualiWork presta serviços de consultoria, formação e auditoria no âmbito de normas de referência nacionais e internacionais a Entidades Públicas e Privadas (ISO9001 Qualidade…” Source: RevenueBase Database · checked Sep 28, 2026
23	Psiporto	Indirect evidence	Cidade Da Maia, PortugalHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “A PsiPorto - Formação, Inovação, Gestão, Avaliação é uma empresa que conta com uma equipa experiente de colaboradores e com uma carteira de clientes cada vez mais abrangente nos…” Source: RevenueBase Database · checked Sep 28, 2026
24	Trcompliance	Indirect evidence	Ermesinde, PortugalHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “TRC is an independent engineering company operating in the fields of product and installation compliance.” Source: RevenueBase Database · checked Sep 28, 2026
25	Safelab	Indirect evidence	Guimarães, PortugalHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “A SAFELAB tem como principais campos de intervenção a consultoria técnica, a implementação de sistemas de gestão, a prestação dos serviços externos de Segurança e Higiene no…” Source: RevenueBase Database · checked Sep 28, 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 certification 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 certification consulting firms.
Partial evidence: Its own public description names part of iso certification 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 certification 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 25 of 257 iso certification consulting firms based in Portugal

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Iso certification consulting firms based in Portugal at a glance

As of Sep 28, 2026

12.0%Verified-email coverage

13.7Average contacts per company

1-10Median size (employees)

12.1%Largest-city concentration · Lisboa

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

179

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for Portugal, so it is reported there. Company counts and contact totals on this page are exact for Portugal, over 257 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 certification 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 Portugal whose own description of what they do matches “iso certification 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 certification 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 certification consulting firms, and records with no verified work email. Companies headquartered outside Portugal 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, 422 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 certification 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 certification consulting firms are there based in Portugal?

RevenueBase identified 257 iso certification consulting firms headquartered in Portugal 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?

IEP, headquartered in Vila Nova De Famalicao, tops this list with the largest team on record.

Which city has the most iso certification consulting firms?

Lisboa leads with 31 headquartered companies, followed by Porto (23) and Matosinhos (12).

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 422 verified decision-maker contacts tracked across these 257 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.

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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.