Company lists · Data refreshed September 2026

Top 25 Tenant improvement contractors based in Spain

Name: Tenant improvement contractors based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 681 companies tracked

RevenueBase identified 681 tenant improvement contractors headquartered in Spain as of September 2026 and tracks 2,622 professional contacts across them, including 188 with verified work emails. Madrid is the largest hub.

This list covers tenant improvement contractors 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 19, 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 19, 2026 86% judged on-target in blind review

681Companies

2,622Contacts tracked

188Verified emails

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The 25 largest tenant improvement contractors based in Spain

Ranked by team size

Top 25 of 681 tenant improvement contractors based in Spain, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to tenant improvement contractors: 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	Sutega	Indirect evidence	A Coruña, SpainHQ checked Sep 19, 2026	51-200	130 contacts →
	Indirect evidence “Desarrollamos proyectos Design & Build personalizados, contribuyendo a la adecuación de espacios para mejorar su estética, rentabilidad y sostenibilidad.” Source: RevenueBase Database · checked Sep 19, 2026
2	Inadhoc	Indirect evidence	Montcada I Reixac, SpainHQ checked Sep 19, 2026	11-50	24 contacts →
	Indirect evidence “INADHOC \| Diseño de Espacios de Trabajo · Construcción · Mobiliario · Mamparas Transformamos espacios laborales en herramientas estratégicas para el crecimiento.” Source: RevenueBase Database · checked Sep 19, 2026
3	Ubicca	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	24 contacts →
	Indirect evidence “ARQUITECTURA "Llave en Mano" Clientes Corporativos (OFICINAS, FRANQUICIAS, RETAIL.) UBICCA es "LEED Member" parte del U.S.G.B.C.(U.S.” Source: RevenueBase Database · checked Sep 19, 2026
4	Dinof, S.A	Indirect evidence	Bilbao, SpainHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “Dinof \| Obras y Reformas de Oficinas Especialistas en obras y reformas de espacios de trabajo en Bilbao, Vitoria-Gasteiz y Donostia.” Source: RevenueBase Database · checked Sep 19, 2026
5	Ofimor Group	Indirect evidence	Almeiras (culleredo), SpainHQ checked Sep 19, 2026	11-50	22 contacts →
	Indirect evidence “Ofimor nace en 2007 con el objetivo de acompañar a nuestros clientes durante todo el proyecto de obra o reforma, aportando ideas, asesoramiento, profesionalidad y soluciones en…” Source: RevenueBase Database · checked Sep 19, 2026
6	Grupowork	Indirect evidence	Perillo (oleiros), SpainHQ checked Sep 19, 2026	51-200	20 contacts →
	Indirect evidence “GrupoWork, somos un grupo empresarial multidisciplinar, gestionamos y realizamos obras y reformas globales en locales comerciales y oficinas de forma integral, desde el concepto…” Source: RevenueBase Database · checked Sep 19, 2026
7	Expert Line SL	Indirect evidence	Vilablareix (girona), SpainHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence “EXPERT LINE, SL es una empresa que desarrolla desde el año 1963 su actividad empresarial, especializada, en proyectos globales de construcción y equipamiento para espacios…” Source: RevenueBase Database · checked Sep 19, 2026
8	Grupo Decosystem	Indirect evidence	Fuenlabrada, SpainHQ checked Sep 19, 2026	51-200	18 contacts →
	Indirect evidence “Decosystem es una empresa dedicada al diseño, fabricación e instalación de todo tipo de proyectos comerciales.” Source: RevenueBase Database · checked Sep 19, 2026
9	Kardham España	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	17 contacts →
	Indirect evidence “Kardham España forma parte de Groupe Kardham, grupo internacional líder en consultoría, arquitectura, ingeniería, diseño y construcción de espacios.” Source: RevenueBase Database · checked Sep 19, 2026
10	Instaldeco	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “Proyecto iniciado por un equipo joven, que surge a partir de la decidida apuesta para cubrir un nicho de mercado en el sector de las instalaciones de oficinas, i que se refieren…” Source: RevenueBase Database · checked Sep 19, 2026
11	SENZA	Indirect evidence	Zafra, SpainHQ checked Sep 19, 2026	1-10	16 contacts →
	Indirect evidence “Senza Espacios S.L.” Source: RevenueBase Database · checked Sep 19, 2026
12	Ibiza Interiors	Indirect evidence	San Lorenzo, SpainHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Designing the New Mediterranean” Ibiza Interiors, founded by interior architect Jurjen van Hulzen, is a full service project company to help professional developers and private…” Source: RevenueBase Database · checked Sep 19, 2026
13	Wholecontract	Indirect evidence	Montcada I Reixac, SpainHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Wholecontract es una empresa especializada en diseño y reforma de oficinas, pionera en la implantación del “workplace strategy” con una dilatada experiencia en el sector, y…” Source: RevenueBase Database · checked Sep 19, 2026
14	ERCER	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Ercer es una empresa especializada en el diseño y construcción de espacios de oficina, comerciales, educativos e industriales.” Source: RevenueBase Database · checked Sep 19, 2026
15	ALTIA	Indirect evidence	Roquetas De Mar, SpainHQ checked Sep 19, 2026	51-200	14 contacts →
	Indirect evidence “Empresa especializada en reformas y rehabilitación de viviendas, oficinas y locales comerciales.” Source: RevenueBase Database · checked Sep 19, 2026
16	Uniqe Design&build	Indirect evidence	Sevilla, SpainHQ checked Sep 19, 2026	1-10	12 contacts →
	Indirect evidence “Construction company specialized in the design and execution of works in commercial spaces, offices and restaurants, as well as residential buildings and single-family homes.” Source: RevenueBase Database · checked Sep 19, 2026
17	DASER	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “Daser Interiorismo y Reformas Desde 1988 nos dedicamos al diseño, equipamiento y reformas de oficinas y locales comerciales.” Source: RevenueBase Database · checked Sep 19, 2026
18	Arko Barcelona	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	51-200	11 contacts →
	Indirect evidence “Arko Barcelona es una constructora especializada en retail, interiorismo y rehabilitación nacida en 2008.” Source: RevenueBase Database · checked Sep 19, 2026
19	Contract & Interiors SL	Indirect evidence	Córdoba, SpainHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “Our mission is to transform spaces, creating functional and aesthetic environments that create a unique experience for our clients.” Source: RevenueBase Database · checked Sep 19, 2026
20	Sezam Studio	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	1-10	11 contacts →
	Indirect evidence “En Sezam Studio, somos un equipo de interioristas en Barcelona especializados en interiorismo metódico y reformas integrales.” Source: RevenueBase Database · checked Sep 19, 2026
21	Adeyaka	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “En Adeyaka transformamos espacios de trabajo en herramientas estratégicas para las empresas.” Source: RevenueBase Database · checked Sep 19, 2026
22	Dimensi-On Reformas Integrales EN Madrid	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Estudio de arquitectura interior ubicado en Madrid.” Source: RevenueBase Database · checked Sep 19, 2026
23	Gabiteco	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	9 contacts →
	Indirect evidence “Gabiteco fue fundada en 1968 con el objetivo de ofrecer servicios de consultoría de espacios y ejecución de obras de interior para empresas y corporaciones.” Source: RevenueBase Database · checked Sep 19, 2026
24	Madrid Home Design And Style	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Mhodas es una empresa especializada en el diseño, desarrollo y ejecución de proyectos de interiorismo, reformas integrales y equipamiento de espacios.” Source: RevenueBase Database · checked Sep 19, 2026
25	Inaptk Ingeniería Aplicada AL Proyecto Llaves EN Mano	Indirect evidence	El Prat De Llobregat, SpainHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Entidad creada en 2012 INAPTK es especialista en la concepción y construcción inmobiliaria dedicada a las empresas.” Source: RevenueBase Database · checked Sep 19, 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: tenant improvement contractors. 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 tenant improvement contractors.
Partial evidence: Its own public description names part of tenant improvement contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name tenant improvement contractors. 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 681 tenant improvement contractors based in Spain

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Tenant improvement contractors based in Spain at a glance

As of Sep 19, 2026

7.2%Verified-email coverage

3.9Average contacts per company

1-10Median size (employees)

20.3%Largest-city concentration · Madrid

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

489

11-50

160

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 681 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 tenant improvement contractors, 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 “tenant improvement contractors”. 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 tenant improvement contractors), 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 tenant improvement contractors, 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, 188 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 19, 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.

Tenant improvement contractors by metro

Tenant improvement contractors in Madrid138
Tenant improvement contractors in Barcelona107

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 tenant improvement contractors, 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 tenant improvement contractors are there based in Spain?

RevenueBase identified 681 tenant improvement contractors 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?

Sutega, headquartered in A Coruna, tops this list with the largest team on record.

Which city has the most tenant improvement contractors?

Madrid leads with 138 headquartered companies, followed by Barcelona (107) and Valencia (17).

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 188 verified decision-maker contacts tracked across these 681 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 19, 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.