Company lists · Data refreshed September 2026
Top 25 Tier one consulting firms based in Portugal
RevenueBase identified 221 tier one consulting firms headquartered in Portugal as of September 2026 and tracks 3,646 professional contacts across them, including 697 with verified work emails. Lisbon is the largest hub.
This list covers tier one 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 29, 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 25 largest tier one consulting firms based in Portugal
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,168 contacts → | ||||
Partial evidence “GMS was established in early 2003 to provide strategic, business and IT consulting and changed its name to Maksen in December 2010.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 341 contacts → | ||||
Partial evidence “AskBlue is a company created in 2013 that provides specialized consulting services in the financial sector and information technology.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 315 contacts → | ||||
Indirect evidence “HN Services Portugal (sociedade portuguesa do Groupe HN) é uma empresa de consultadoria informática.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 248 contacts → | ||||
Partial evidence “Founded in 2011, during a period of economic crisis, Winning Consulting introduced a pioneering concept: consulting services based on Scientific Management Models.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 196 contacts → | ||||
Partial evidence “LBC is an international management consulting company, with project experience in 18 countries through Europe, Africa, and America, more than 1.200 projects in 12 Industry…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 86 contacts → | ||||
Indirect evidence “Criada em 2005 a EFIQCONCEPT – Consultores de Gestão, Lda vem exercendo a sua atividade essencialmente na área da consultoria financeira, fiscal e de recursos humanos, conta desde…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 63 contacts → | ||||
Partial evidence “A highly reputable company in the Management Consulting area, CH BUSINESS CONSULTING has created a series of services which meet its clients’ needs, as the embodiment of the…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 59 contacts → | ||||
Indirect evidence “SYSWISE is a management consultancy committed to designing and delivering solutions that enable international companies to thrive in today's complex business environment.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 42 contacts → | ||||
Indirect evidence “A ByMe, especialista em Tecnologias de Informação, Cuidados de Saúde e Formação Profissional, atua enquanto consultora na gestão empresarial, dispondo de um vasto leque de opções…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 36 contacts → | ||||
Indirect evidence “A CERB foi fundada em 1987 e desde então tem vindo a firmar-se enquanto empresa de consultoria especialista na prestação de serviços de apoio à gestão, contabilidade financeira…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 35 contacts → | ||||
Partial evidence “A Zertive Consulting é uma empresa de Consultoria de Negócio e Tecnológica que apoia empresas e a sua gestão a, alavancando-se em tecnologia, atingir e melhorar os seus objetivos…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 35 contacts → | ||||
Indirect evidence “A Sendys é uma consultora tecnológica que se dedica ao desenvolvimento, manutenção, comercialização e suporte de soluções de gestão para pequenas, médias e grandes empresas, com…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 34 contacts → | ||||
Indirect evidence “O DNI Group nasce com o intuito claro de apoiar, a todo o momento, a gestão das empresas na implementação da sua estratégia e na resolução dos seus obstáculos do dia-a-dia.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 30 contacts → | ||||
Indirect evidence “Reinventamos e evoluímos a realidade operacional e digital das empresas, elevando-as a novos patamares de eficácia.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 30 contacts → | ||||
Partial evidence “Eurogroup Consulting is a management consulting independent, and a founding member of Nextcontinent, an international network based on more than 55 offices in 40 countries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 26 contacts → | ||||
Partial evidence “Ablewise Consulting is an IT company founded to answer the needs of an increasingly dynamic business world, we aspire to make a real difference.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 25 contacts → | ||||
Indirect evidence “Surgimos com o propósito de entregar Qualidade e Eficiência ao Negócio dos nossos Clientes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Indirect evidence “Dedicamo-nos à consultoria de gestão, procurando oferecer aos seus clientes apoio técnico, utilizando as mais recentes ferramentas de gestão, pretendendo ser um parceiro de…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 21 contacts → | ||||
Partial evidence “EVEREDGE was founded in 2016 and focuses its activity on providing strategic and operational information systems consulting services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 21 contacts → | ||||
Indirect evidence “A INSC - Informática, Serviços e Consultadoria, disponibiliza várias soluções de TI empresariais, suporte e consultoria, adaptadas à dimensão e setor de atividades dos nossos…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 18 contacts → | ||||
Partial evidence “AdQuam is a group of companies in Management and Information Technology Consulting Services and specialist recruitment services in Management and Information Technology areas.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 17 contacts → | ||||
Indirect evidence “Voltarion was created to help companies increase operational performance and profitability in a sustainable way, through the implementation of complex transformation programs that…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 15 contacts → | ||||
Partial evidence “Goodwise is a management consulting firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 14 contacts → | ||||
Indirect evidence “O Grupo EPSA é um dos líderes europeus na criação de eficiência e melhoramento do desempenho empresarial.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 14 contacts → | ||||
Partial evidence “Founded in 2002 (Lisbon, Portugal), and in Brazil in 2023, HOZEN Consulting is a Top Management consultancy company specialized in Strategy, Operations and Organization…” Source: RevenueBase Database · checked Sep 29, 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: tier one 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 tier one consulting firms.
- Partial evidence
- Its own public description names part of tier one consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name tier one 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 221 tier one consulting firms based in Portugal
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Tier one consulting firms based in Portugal at a glance
As of Sep 29, 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 221 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 tier one 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 “tier one 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 tier one 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 tier one 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, 697 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 29, 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.
Tier one consulting firms by metro
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 tier one 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 tier one consulting firms are there based in Portugal?
RevenueBase identified 221 tier one 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?
GMS, headquartered in Lisbon, tops this list with the largest team on record.
Which city has the most tier one consulting firms?
Lisbon leads with 80 headquartered companies, followed by Porto (19) and Leiria (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 697 verified decision-maker contacts tracked across these 221 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 29, 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.
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