Company lists · Data refreshed September 2026

Top 25 Architectural firms based in Spain

Name: Architectural firms based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 5,229 companies tracked

RevenueBase identified 5,229 architectural firms headquartered in Spain as of September 2026 and tracks 37,751 professional contacts across them, including 3,795 with verified work emails and 466 with mobile numbers. Madrid is the largest hub.

This list covers architectural firms headquartered in Spain, 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 6, 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 6, 2026 86% judged on-target in blind review

5,229Companies

37,751Contacts tracked

3,795Verified emails

466Mobile numbers

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The 25 largest architectural firms based in Spain

Ranked by team size

Top 25 of 5,229 architectural firms based in Spain, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to architectural 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	Idom Consulting, Engineering, Architecture	Strong evidence	Bilbao, SpainHQ checked Sep 6, 2026	5,001-10,000	4,988 contacts →
	Strong evidence “IDOM is a leading multinational company providing professional services in consulting, engineering and architecture.” Source: RevenueBase Database · checked Sep 6, 2026
2	Arquitectura	Indirect evidence	Pontevedra, SpainHQ checked Sep 6, 2026	n/a	1,478 contacts →
	Indirect evidence “Estudio de arquitectura” Source: RevenueBase Database · checked Sep 6, 2026
3	Vita Construcciones	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	n/a	551 contacts →
	Indirect evidence “Vita Construcciones desde 1953 es una empresa especializada en construcción, rehabilitación y reforma integral.” Source: RevenueBase Database · checked Sep 6, 2026
4	Esteyco	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	201-500	268 contacts →
	Indirect evidence “Desde 1970 ESTEYCO ha desarrollado internacionalmente más de 1.300 estudios y proyectos.” Source: RevenueBase Database · checked Sep 6, 2026
5	Quadrante Meta Engineering	Indirect evidence	Barcelona, SpainHQ checked Sep 6, 2026	501-1,000	237 contacts →
	Indirect evidence “Empresa líder ibérica de servicios profesionales en ingeniería, arquitectura, medio ambiente y sostenibilidad.” Source: RevenueBase Database · checked Sep 6, 2026
6	Estudio Lamela	Strong evidence	Madrid, SpainHQ checked Sep 6, 2026	51-200	217 contacts →
	Strong evidence “Estudio Lamela is one of the most important architecture studios in Spain.” Source: RevenueBase Database · checked Sep 6, 2026
7	G4 Group Architecture, Engineering And Design	Strong evidence	Barcelona, SpainHQ checked Sep 6, 2026	51-200	215 contacts →
	Strong evidence “G4 GROUP architecture & engineering es un estudio de arquitectura, ingeniería y diseño con oficinas en Barcelona, Madrid, Torino, París y Dubai con más de 25 años de experiencia y…” Source: RevenueBase Database · checked Sep 6, 2026
8	EMPTY	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	51-200	199 contacts →
	Indirect evidence “Empty focuses on the development of unique projects that meet complex objectives.” Source: RevenueBase Database · checked Sep 6, 2026
9	Conurma Ingenieros Consultores	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	51-200	198 contacts →
	Indirect evidence “CONURMA GROUP is a leading company in consulting that has experienced a significant growth and diversification in its activities in the last decades.” Source: RevenueBase Database · checked Sep 6, 2026
10	Batlleiroig	Strong evidence	Esplugues De Llobregat, SpainHQ checked Sep 6, 2026	51-200	175 contacts →
	Strong evidence “Batlleiroig is a multidisciplinary office located in Barcelona, integrating the practice of Planning, Landscape Design, and Architecture.” Source: RevenueBase Database · checked Sep 6, 2026
11	MORPH	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	51-200	173 contacts →
	Indirect evidence “MORPH is an international company of more than 180 designers, architects and engineers that creates singular solutions and innovative projects with solvency and agility thanks to…” Source: RevenueBase Database · checked Sep 6, 2026
12	Proes Consultores	Indirect evidence	Pozuelo De Alarcón, SpainHQ checked Sep 6, 2026	51-200	148 contacts →
	Indirect evidence “PROES Consultores, S.A.” Source: RevenueBase Database · checked Sep 6, 2026
13	Luis Vidal Architects	Strong evidence	Madrid, SpainHQ checked Sep 6, 2026	51-200	139 contacts →
	Strong evidence “luis vidal + architects is a Madrid-based global Architecture practice with offices in UK, USA, Chile and Dominican Republic.” Source: RevenueBase Database · checked Sep 6, 2026
14	TASH	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	201-500	135 contacts →
	Indirect evidence “TASH \| Taller de Arquitectura Sánchez-Horneros es un estudio de arquitectura e ingeniería de edificación nacido en Toledo, con más de 20 años de trayectoria y presencia…” Source: RevenueBase Database · checked Sep 6, 2026
15	Ingenor	Strong evidence	Alcobendas, SpainHQ checked Sep 6, 2026	201-500	135 contacts →
	Strong evidence “INGENOR is a group of companies that provides professional services in Engineering, Architecture and Project & Construction Management.” Source: RevenueBase Database · checked Sep 6, 2026
16	Antea Group España Y Latinoamérica	Indirect evidence	A Coruña, SpainHQ checked Sep 6, 2026	51-200	133 contacts →
	Indirect evidence “Desde su fundación en A Coruña en el año 1985 ICEACSA se ha posicionado en el mercado español como una consultora pionera y líder en el desarrollo integral de proyectos en los…” Source: RevenueBase Database · checked Sep 6, 2026
17	Decor & Desgn	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	n/a	119 contacts →
	Indirect evidence “Decor & Design ha creado su estudio para ofrecer a sus clientes un servicio exclusivo de decoración e interiorismo, creando espacios inspirados en un estilo y filosofía…” Source: RevenueBase Database · checked Sep 6, 2026
18	Gunni&trentino	Indirect evidence	Barcelona · Bilbao · Madrid · Mallorca · Marbella · Bogotá · Doha, SpainHQ checked Sep 6, 2026	201-500	110 contacts →
	Indirect evidence “BIENVENIDOS A GUNNI & TRENTINO [gunnitrentino.es] Barcelona · Bilbao · Madrid · Mallorca · Marbella · Bogotá · Doha Más de 50 años ofreciendo servicios integrales de interiorismo…” Source: RevenueBase Database · checked Sep 6, 2026
19	HCP Architecture & Engineering	Strong evidence	Málaga, SpainHQ checked Sep 6, 2026	51-200	108 contacts →
	Strong evidence “HCP Architecture & Engineering is a studio founded in 1986, currently employing more than 100 professionals, dedicated to architecture, engineering and urban projects affording…” Source: RevenueBase Database · checked Sep 6, 2026
20	AH Asociados	Strong evidence	Pamplona, SpainHQ checked Sep 6, 2026	51-200	105 contacts →
	Strong evidence “ah asociados is an architecture studio established in 1989 with branches in Pamplona, Bilbao, Madrid, Barcelona and Qatar.” Source: RevenueBase Database · checked Sep 6, 2026
21	BIS	Indirect evidence	Barcelona, SpainHQ checked Sep 6, 2026	51-200	103 contacts →
	Indirect evidence “BIS es una #ingeniería especializada en el diseño y cálculo de #estructuras e #instalaciones de edificios #sanitarios,#escolares,#deportivos,#residenciales, de…” Source: RevenueBase Database · checked Sep 6, 2026
22	Grupo Argenia	Indirect evidence	Seville, SpainHQ checked Sep 6, 2026	51-200	100 contacts →
	Indirect evidence “Somos una consultora especializada en edificación, nuestra experiencia se ha desarrollado principalmente en los sectores industrial, retail, y hotelero.” Source: RevenueBase Database · checked Sep 6, 2026
23	Velzia	Indirect evidence	Madrid, SpainHQ checked Sep 6, 2026	51-200	98 contacts →
	Indirect evidence “Casas de revista, listas para disfrutar” Source: RevenueBase Database · checked Sep 6, 2026
24	Pineda	Strong evidence	Barcelona, SpainHQ checked Sep 6, 2026	51-200	90 contacts →
	Strong evidence “Founded in 1970, today PINEDA is a family owned design and consultancy company focused on Architectural, Engineering and Project Management services for the construction industry.” Source: RevenueBase Database · checked Sep 6, 2026
25	Impulso Industrial Alternativo	Indirect evidence	Llanera, SpainHQ checked Sep 6, 2026	51-200	87 contacts →
	Indirect evidence “Impulso es una empresa de servicios profesionales, especializada en los campos de la Ingeniería, Arquitectura y Consultoría que en la actualidad desarrolla su actividad para los…” Source: RevenueBase Database · checked Sep 6, 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: architectural 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 architectural firms.
Partial evidence: Its own public description names part of architectural firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name architectural 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 5,229 architectural firms based in Spain

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Architectural firms based in Spain at a glance

As of Sep 6, 2026

10.1%Verified-email coverage

1.2%Mobile-number coverage

7.2Average contacts per company

1-10Median size (employees)

19.5%Largest-city concentration · Madrid

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

4,148

11-50

917

51-200

101

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

3,5310–30

23731–60

261–90

090–180

25180+

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 architectural 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 Spain whose own description of what they do matches “architectural 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 architectural 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 architectural firms, and records with no verified work email. Companies headquartered outside Spain 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, 3,795 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 6, 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.

Architectural 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 architectural 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 architectural firms are there based in Spain?

RevenueBase identified 5,229 architectural firms headquartered in Spain 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?

Idom Consulting, Engineering, Architecture, headquartered in Bilbao, tops this list with the largest team on record.

Which city has the most architectural firms?

Madrid leads with 1018 headquartered companies, followed by Barcelona (754) and Valencia (223).

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 3,795 verified decision-maker contacts tracked across these 5,229 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 6, 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.