Company lists · Data refreshed September 2026

Top 25 Iso audit consulting firms based in Portugal

Name: Iso audit 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 216 companies tracked

RevenueBase identified 216 iso audit consulting firms headquartered in Portugal as of September 2026 and tracks 2,960 professional contacts across them, including 339 with verified work emails. Lisboa is the largest hub.

This list covers iso audit 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

216Companies

2,960Contacts tracked

339Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest iso audit consulting firms based in Portugal

Ranked by team size

Top 25 of 216 iso audit 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 audit 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	Indirect evidence	Porto, PortugalHQ checked Sep 28, 2026	51-200	199 contacts →
	Indirect 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	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
5	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
6	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
7	Dixtior	Indirect evidence	Lisboa, PortugalHQ checked Sep 28, 2026	51-200	28 contacts →
	Indirect evidence “Dixtior is a Portuguese consultancy firm that seamlessly combines the very best of two worlds.” Source: RevenueBase Database · checked Sep 28, 2026
8	Inls Solutions	Indirect evidence	Lisbon, PortugalHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Training & Consultancy company specialized to apply the Best Available Practices in order to boost either professionals or companies towards the excellence in Quality, Environment…” Source: RevenueBase Database · checked Sep 28, 2026
9	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
10	Pontes, Baptista & Associados, Sroc	Strong evidence	Lisbon, PortugalHQ checked Sep 28, 2026	11-50	19 contacts →
	Strong evidence “Mission: Issue credible opinions and provide value added solutions that act as a leverage factor in the decision making process through audit and consulting services…” Source: RevenueBase Database · checked Sep 28, 2026
11	Veloso&associados	Indirect evidence	Braga, PortugalHQ checked Sep 28, 2026	1-10	19 contacts →
	Indirect evidence “O nosso objetivo é, lado a lado, com o cliente encontrar soluções que acrescentem valor ao seu negócio.” Source: RevenueBase Database · checked Sep 28, 2026
12	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
13	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
14	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
15	Appm & Associados, Sroc, LDA	Indirect evidence	Lisboa, PortugalHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “A Sociedade tem por objecto a Revisão Legal de Contas, a Auditoria Financeira às Contas e aos serviços relacionados de empresas ou de outras entidades e de quaisquer funções que…” Source: RevenueBase Database · checked Sep 28, 2026
16	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
17	BMS	Indirect evidence	Lisbon, PortugalHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “Na BMS, apoiamos organizações a crescer de forma sustentável, com equipas especializadas que prestam serviços em Auditoria, Consultoria Financeira e Consultoria Fiscal.” Source: RevenueBase Database · checked Sep 28, 2026
18	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
19	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
20	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
21	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
22	Lemonsafe	Indirect evidence	Almada, PortugalHQ checked Sep 28, 2026	1-10	9 contacts →
	Indirect evidence “Fundada em 2003, a LEMONSAFE® desenvolve as suas atividades no âmbito da segurança de espaços, equipamentos e infraestruturas, através da prestação de serviços de apoio…” Source: RevenueBase Database · checked Sep 28, 2026
23	Adesus	Indirect evidence	Alfena, PortugalHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Os nossos quadros e colaboradores constituem uma equipa experiente, multidisciplinar e versátil que aliam o rigor no cumprimento dos objetivos dos clientes, com a melhoria do seu…” Source: RevenueBase Database · checked Sep 28, 2026
24	VALOR	Indirect evidence	Marinha Grande, PortugalHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “O que somos é o que pode esperar de nós.” Source: RevenueBase Database · checked Sep 28, 2026
25	Enviestudos, S.A	Indirect evidence	Almada, PortugalHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Constituída a 3 de Março de a EnviEstudos coloca-se no mercado como uma empresa prestadora de serviços especializados na área da Qualidade, Ambiente e Segurança.” 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 audit 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 audit consulting firms.
Partial evidence: Its own public description names part of iso audit 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 audit 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 216 iso audit consulting firms based in Portugal

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 339 reachable decision-makers.

Free signup · no credit card

View the full list →

Iso audit consulting firms based in Portugal at a glance

As of Sep 28, 2026

11.5%Verified-email coverage

13.7Average contacts per company

1-10Median size (employees)

19.9%Largest-city concentration · Lisboa

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

143

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 216 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 audit 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 audit 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 audit 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 audit 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, 339 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.

Iso audit consulting firms by metro

Iso audit consulting firms in Lisboa43

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 audit 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 audit consulting firms are there based in Portugal?

RevenueBase identified 216 iso audit 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 audit consulting firms?

Lisboa leads with 43 headquartered companies, followed by Porto (24) and Lisbon (9).

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 339 verified decision-maker contacts tracked across these 216 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 216 iso audit consulting firms based in Portugal. Start with a free account, no credit card.

Download this list →

Related lists

Iso audit consulting firms by geography

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.