Company lists · Data refreshed September 2026
Top 25 Big international law firms based in Portugal
RevenueBase identified 380 big international law firms headquartered in Portugal as of September 2026 and tracks 6,233 professional contacts across them, including 1,143 with verified work emails. Lisboa is the largest hub.
This list covers big international law 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 21, 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 big international law firms based in Portugal
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 516 contacts → | ||||
Strong evidence “Vieira de Almeida (VdA) is a leading international law firm with over 45 years of history, known for its unrivalled track record in corporate legal advice and for its innovative…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 339 contacts → | ||||
Partial evidence “Morais Leitão is a leading full-service law firm in Portugal, with a solid background of decades of experience.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 176 contacts → | ||||
Indirect evidence “Somos uma sociedade de advogados que, há mais de 30 anos, presta assessoria full-service a clientes nacionais e internacionais em todas as áreas de negócio.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 166 contacts → | ||||
Indirect evidence “Founded in 2001, PRA - Raposo, Sá Miranda & Associados, Sociedade de Advogados, SP, RL is today the result of shared values, desires and goals that have created synergies and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 160 contacts → | ||||
Partial evidence “Miranda is an international full service legal practice serving the needs of many of the largest multinational corporations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 149 contacts → | ||||
Partial evidence “TELLES, widely recognised for providing a high standard of legal advice, is an independent Portuguese law firm.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 144 contacts → | ||||
Partial evidence “Sérvulo & Associados is one of the leading law firms in Portugal, recognised for providing high-quality legal services across all practice areas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 128 contacts → | ||||
Partial evidence “CCA is a full-service law firm guided by a clear purpose: Innovation that transforms realities, solutions that impact people.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 96 contacts → | ||||
Indirect evidence “Our Partnership Culture is what truly sets us apart.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 94 contacts → | ||||
Indirect evidence “A Eversheds Sutherland é um escritório de advogados full-service orientado para o cliente, com mais de 30 anos de experiência.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 79 contacts → | ||||
Indirect evidence “Since 1992, Cerejeira Namora, Marinho Falcão has cemented an innovative and dynamic positioning, responding to all the challenges that are thrown at it.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 77 contacts → | ||||
Strong evidence “Inventa is a leading Intellectual Property Law Firm, specializing in the protection and internationalization of trademarks, patents, industrial designs, copyright and domain names.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 44 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 42 contacts → | ||||
Strong evidence “pbbr is a full service law firm with a national and international projection providing legal advice and assistance based in high standards, rigor and quality criteria.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 37 contacts → | ||||
Indirect evidence “Albuquerque & Associados is one longest established and well known firms in Portugal.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 33 contacts → | ||||
Indirect evidence “A BROSETA é uma sociedade de advogados internacional com escritórios em Lisboa, Madrid, Valência, Barcelona e Zurique, e com uma equipa de mais de 300 advogados.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 32 contacts → | ||||
Strong evidence “Ana Bruno & Associados is a boutique law firm with over 20 years of experience, based in Lisbon, advising national and international clients across a wide range of practice areas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 26 contacts → | ||||
Partial evidence “BAS, Law Firm RL, born 13 years ago based on the meeting of minds of a senior team with the best technical quality and solid experience in various areas of law, aiming an…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 26 contacts → | ||||
Strong evidence “NSM Lawyers, founded in 2018 in Lisbon, is a medium-sized law firm advising domestic and international clients on real estate, corporate, litigation, labour law, and Golden Visa &…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 25 contacts → | ||||
Strong evidence “Ferreira Pinto is a Portuguese law firm providing quality services to local and international business clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 25 contacts → | ||||
Strong evidence “CCSL Advogados is a law firm based in Lisbon and specialized in legal and tax matters in an international setting.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 23 contacts → | ||||
Partial evidence “CRS Advogados is a full-service law firm based in Lisbon, with offices in Oporto and Algarve, we focus on providing innovative solutions to our Clients´ complex matters.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 21 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 21 contacts → | ||||
Indirect evidence “Coelho Ribeiro & Associados (CRA) was founded in 1986 on the principles of-Consistent quality and effectiveness-Strict adherence to the professional code of ethics and the rules…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 21 contacts → | ||||
Partial evidence “The Alexandra Bessone Cardoso & Associados, RL, Law Firm, knowned as well for it’s registed trademark – ABC LEGAL- was established in Lisbon in July 2004, by the founders…” Source: RevenueBase Database · checked Sep 21, 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: big international law 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 big international law firms.
- Partial evidence
- Its own public description names part of big international law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name big international law 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 380 big international law firms based in Portugal
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Big international law firms based in Portugal at a glance
As of Sep 21, 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 380 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 big international law 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 “big international law 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 big international law 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 big international law 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, 1,143 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 21, 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.
Big international law 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 big international law 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 big international law firms are there based in Portugal?
RevenueBase identified 380 big international law 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?
VDA Vieira DE Almeida, headquartered in Lisbon, tops this list with the largest team on record.
Which city has the most big international law firms?
Lisboa leads with 143 headquartered companies, followed by Porto (61) and Lisbon (46).
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 1,143 verified decision-maker contacts tracked across these 380 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 21, 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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