Company lists · Data refreshed September 2026
Top 24 Iso 27001 consulting firms based in Portugal
RevenueBase identified 57 iso 27001 consulting firms headquartered in Portugal as of September 2026 and tracks 360 professional contacts across them, including 105 with verified work emails. Lisboa is the largest hub.
This list covers iso 27001 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.
The 24 largest iso 27001 consulting firms based in Portugal
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 45 contacts → | ||||
Indirect evidence “We work to secure and deliver the most fundamental force in business: trust.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 25 contacts → | ||||
Indirect evidence “Your partner for IT managed services and cybersecurity.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 10 contacts → | ||||
Indirect evidence “KNOWLEDGE ON DATA PROTECTION!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 7 contacts → | ||||
Partial evidence “We are a team of consultants specialized in consulting and auditing related to Integrated Management Systems.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6 contacts → | ||||
Partial evidence “Quasinfalível is a consulting company specialised in supporting organisations in achieving compliance with recognised standards and regulatory frameworks for the services sector.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 6 contacts → | ||||
Partial evidence “CSway is a company, with qualitiy certification ISO 9001:2015, whose mission is to present solutions of recognized quality, creating added value for its customer, in the areas of…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 6 contacts → | ||||
Indirect evidence “We turn data into value.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 4 contacts → | ||||
Partial evidence “BEHAVIOUR® presents solutions for training, certification, consulting and auditing on best practices and management methodologies, management systems and information security…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4 contacts → | ||||
Indirect evidence “A MEGAQUALIDADE é uma empresa que presta serviços nas áreas da Qualidade, Ambiente, Segurança, na Gestão do Risco e na Gestão de Ativos.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Partial evidence “A Switch Digital Consulting (SDC) é uma consultora especializada em cibersegurança, focada na definição e implementação de estratégias que reforçam a resiliência digital.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Strong evidence “Consulting, Training and Auditing services:* ISO 27001, 22301 and 27032 * ISO and ISO 27005 * Security and Business Continuity systems architecture design * Datacenters conceptual…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 contacts → | ||||
Indirect evidence “A SoConsulting coloca-se no mercado como uma empresa prestadora de serviços especializados na implementação de Sistemas de Gestão da Qualidade, Ambiente, Segurança e Saúde no…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Indirect evidence “O objetivo da ARIOL é ajudar empresas e organizações a melhorar profissional e socialmente.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Indirect evidence “EN Transponder Consultores is positioned in the management consultancy market, we work to have a personalized response to customer demands.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Indirect evidence “Willway S.A.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 contacts → | ||||
Partial evidence “PGM CONSULTING is a consulting company specialising in services in the following areas: VDA - ISA / TISAX - Information Security Management System for the Automotive Industry…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 contacts → | ||||
Indirect evidence “We provide companies and individuals with high-quality, innovative information security services and solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Indirect evidence “Qualius is a consultancy and training company, focused in IT Governance and IT Management.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Indirect evidence “A nossa prioridade na ByXS é garantir o seu sucesso.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence “A RGPD Consultores é uma empresa que presta serviços de consultoria, com competências multidisciplinares nas áreas da privacidade e cibersegurança, segurança da informação, legal…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Equipa de profissionais certificados na implementação de sistemas de Cibersegurança, com experiência comprovada em empresas do sector público e privado.” 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 27001 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 27001 consulting firms.
- Partial evidence
- Its own public description names part of iso 27001 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 27001 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 57 iso 27001 consulting firms based in Portugal
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 105 reachable decision-makers.
Free signup · no credit card
Iso 27001 consulting firms based in Portugal at a glance
As of Sep 28, 2026Companies by employee count
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 57 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 27001 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 27001 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 27001 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 27001 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, 105 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 27001 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 27001 consulting firms are there based in Portugal?
RevenueBase identified 57 iso 27001 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?
Pontual, headquartered in Espargo, tops this list with the largest team on record.
Which city has the most iso 27001 consulting firms?
Lisboa leads with 17 headquartered companies, followed by Porto (6) and Lisbon (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 105 verified decision-maker contacts tracked across these 57 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 57 iso 27001 consulting firms based in Portugal. Start with a free account, no credit card.
Download this list →Related lists
Iso 27001 consulting firms by geography
- Iso 27001 consulting firms based in Melbourne, Australia
- Iso 27001 consulting firms based in Sydney, Australia
- Iso 27001 consulting firms based in Rio De Janeiro, Brazil
- Iso 27001 consulting firms based in Sao Paulo, Brazil
- Iso 27001 consulting firms based in Toronto, Canada
- Iso 27001 consulting firms based in Paris, France
- Iso 27001 consulting firms based in Berlin, Germany
- Iso 27001 consulting firms based in Bangalore, India
- Iso 27001 consulting firms based in Chennai, India
- Iso 27001 consulting firms based in Mumbai, India
- Iso 27001 consulting firms based in Pune, India
- Iso 27001 consulting firms based in Warszawa, Poland
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 27001 consulting firms based in Melbourne, Australia
- Iso 27001 consulting firms based in Sydney, Australia
- Iso 27001 consulting firms based in Rio De Janeiro, Brazil
- Iso 27001 consulting firms based in Sao Paulo, Brazil
- Iso 27001 consulting firms based in Toronto, Canada
- Iso 27001 consulting firms based in Paris, France