Company lists · Data refreshed September 2026
Top 10 Public interest design firms based in Porto, Portugal
RevenueBase identified 64 public interest design firms headquartered in Porto, Portugal as of September 2026 and tracks 345 professional contacts across them, including 66 with verified work emails. Lisboa is the largest hub.
This list covers public interest design firms headquartered in Porto, 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 20, 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 10 largest public interest design firms based in Porto, Portugal
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 78 contacts → | ||||
Partial evidence “Ventura + Partners is a company dedicated to the development of architecture, design and urbanism projects, founded in 1994 by Manuel Ventura.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 40 contacts → | ||||
Partial evidence “MASSLAB is a multidisciplinary design studio working across architecture, urban design, landscape, and product development.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 7 contacts → | ||||
Indirect evidence “A MVCC é um escritório de arquitetura e desenho urbano com sede no Porto, Portugal.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 7 contacts → | ||||
Indirect evidence “A MJARC Arquitetos é uma empresa de projeção internacional dedicada a prestação de serviços na área da arquitetura e engenharia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 5 contacts → | ||||
Partial evidence “Somos uma empresa sediada no Porto, que presta serviços nas áreas da arquitectura, reabilitação, urbanismo e design.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 5 contacts → | ||||
Indirect evidence “Todos queremos um mundo melhor.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 5 contacts → | ||||
Indirect evidence “COSTA GUERRA it's an Oporto based architecture office led by Cláudia Costa and Pedro Guerra.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 4 contacts → | ||||
Partial evidence “Gustavo Guimarães Architecture & Urbanism is an international office focused on developing simple, enduring and thoughtful designs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 2 contacts → | ||||
Partial evidence “Proporcionar qualidade de vida através de soluções inovadoras é a missão da Form Arquitetura e Design.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1 contacts → | ||||
Indirect evidence “Creativity, flexibility, functionality, sustainability are characteristics that we print in our work, looking for the best solution for each project.” Source: RevenueBase Database · checked Sep 20, 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: public interest design 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 public interest design firms.
- Partial evidence
- Its own public description names part of public interest design firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name public interest design 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 10 of 64 public interest design firms based in Porto, Portugal
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Public interest design firms based in Porto, Portugal at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured across the whole Portugal list rather than for Porto, so it is reported there. Company counts and contact totals on this page are exact for Porto, over 64 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 public interest design 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 Porto, Portugal whose own description of what they do matches “public interest design 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 public interest design 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 public interest design firms, and records with no verified work email. Companies headquartered outside Porto 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, 66 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 20, 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.
Public interest design firms by metro in Portugal
- Public interest design firms in Lisboa68
- Public interest design firms in Porto64
- Public interest design firms in Lisbon38
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 public interest design 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 public interest design firms are there based in Porto, Portugal?
RevenueBase identified 64 public interest design firms headquartered in Porto, 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?
Ventura Partners, headquartered in Porto, tops this list with the largest team on record.
Which city has the most public interest design firms?
Lisboa leads with 68 headquartered companies, followed by Porto (64) and Lisbon (38).
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 66 verified decision-maker contacts tracked across these 64 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 20, 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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