Company lists · Data refreshed September 2026
Top 25 International tax consulting firms based in Madrid, Spain
RevenueBase identified 183 international tax consulting firms headquartered in Madrid, Spain as of September 2026 and tracks 2,287 professional contacts across them, including 253 with verified work emails. Across Spain, Madrid is the largest hub for this category.
This list covers international tax consulting firms headquartered in Madrid, 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 28, 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 international tax consulting firms based in Madrid, Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 345 contacts → | ||||
Partial evidence “CE Consulting Empresarial es la mayor red en volumen de asesorías y líder en España: Somos más de 150 asesorías nacionales e internacionales, que ofrecen servicios de asesoría…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 298 contacts → | ||||
Indirect evidence “Founded in Spain in 1979, and with a wide presence in LATAM & Europe, we become an extension of the Finance Department of our clients helping them in their expansion abroad.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 260 contacts → | ||||
Indirect evidence “At Adlanter (formerly Gesdocument), we are a comprehensive business consultancy aiming to be the benchmark in Spain and Portugal for our quality of service, talent, and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 51 contacts → | ||||
Indirect evidence “En Ponter te damos cobertura total para que no tengas que ir a ningún otro sitio.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 44 contacts → | ||||
Partial evidence “As attorneys, tax advisers, management and IT consultants and auditors, we are present with 110 own offices in around 50 countries.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 38 contacts → | ||||
Partial evidence “TGS Edisa is a multidisciplinary firm that since 1988 is providing tax, accounting, legal an labor advisory services and, more recenfly, in fields such as digital consultancy and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 37 contacts → | ||||
Indirect evidence “Somos una asesoría que proporciona un servicio integral a empresas y profesionales en materia legal, fiscal y contable, laboral, mercantil y financiera.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 36 contacts → | ||||
Strong evidence “MGI Audicon & Partners is part of the MGI network, a worldwide association of auditing and consulting firms with international and local presence.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 30 contacts → | ||||
Indirect evidence “En VÍA CONSULTORES ofrecemos un servicio integral a empresas y autónomos, buscando generar un impacto positivo en la sociedad a través de la ética, el compromiso de calidad y la…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 25 contacts → | ||||
Partial evidence “LEIALTA is a business consulting firm that supports companies in their key decisions, combining strategy, compliance and close advisory.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 25 contacts → | ||||
Strong evidence “B LAW & TAX is a leading firm in tax and legal advisory services with both national and international reach.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 16 contacts → | ||||
Partial evidence “PQS Consulting es una firma de servicios profesionales que ofrece asesoramiento fiscal, financiero y de negocio a PYMES, empresas multinacionales y a personas físicas.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 15 contacts → | ||||
Indirect evidence “Exentys es una empresa de asesoramiento integral de empresas en los ámbitos fiscal, legal contable y laboral.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 14 contacts → | ||||
Indirect evidence “bln palao abogados is an boutique law firm that was created in May 2014.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 contacts → | ||||
Strong evidence “CONSULTING 21 TAX GROUP SL Asesoría con amplia experiencia en asesoramiento fiscal, contable, laboral y mercantil.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 12 contacts → | ||||
Strong evidence “Zurbano has been operating in Spain since 1991, offering an integral consulting service by qualified experts in Spanish legal, tax and labour regulations and procedures.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Indirect evidence “Empresa con más de 30 años de experiencia en el área de Auditoría, Asesoría Fiscal y Consultoría Estratégica ADN GramAudit centra sus esfuerzos en la creación de valor para las…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 11 contacts → | ||||
Indirect evidence “Assemsa ofrece servicio de asesoramiento integral: Asesoría Laboral, Asesoría Contable, Asesoría Fiscal, Asesoría Jurídica, Asesoría Mercantil.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Indirect evidence “Somos un despacho especializado en Derecho Tributario, fundado y dirigido desde hace más de 30 años por Eduardo Luque Delgado.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Partial evidence “Contagesha (Contabilidad y Gestión Habana S.L.) is a Madrid-based company specializing in accounting, tax and labour consultancy for small and medium-sized companies…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 10 contacts → | ||||
Indirect evidence “Los servicios de David Mülchi & Asociados se dirigen principalmente a profesionales del sector legal y tributario, a los empresarios, las pymes y las empresas familiares, bien…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Strong evidence “US Tax Consultants is a company with offices in Madrid, Asturias (Spain) and Algarve (Portugal), with national and international presence, and with 56 years of experience in…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 10 contacts → | ||||
Indirect evidence “El origen de ECM Asesores & Consultores se remonta a 2006 con una visión clara de asesoramiento fiscal, laboral, contable, mercantil y consultoría estratégica con el objetivo de…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 contacts → | ||||
Indirect evidence “KRINO es una firma multidisciplinar de servicios legales y fiscales a empresas y particulares que tiene como misión aportar soluciones jurídicas de alto valor añadido, a las…” Source: RevenueBase Database · checked Sep 28, 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: international tax 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 international tax consulting firms.
- Partial evidence
- Its own public description names part of international tax consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name international tax 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 183 international tax consulting firms based in Madrid, Spain
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International tax consulting firms based in Madrid, Spain at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 183 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 international tax 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 Madrid, Spain whose own description of what they do matches “international tax 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 international tax 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 international tax consulting firms, and records with no verified work email. Companies headquartered outside Madrid 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, 253 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 28, 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.
International tax consulting firms by metro in Spain
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 international tax 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 international tax consulting firms are there based in Madrid, Spain?
RevenueBase identified 183 international tax consulting firms headquartered in Madrid, 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?
CE Consulting Empresarial, headquartered in Madrid, tops this list with the largest team on record.
Which city in Spain has the most international tax consulting firms?
Madrid leads Spain with 183 headquartered companies, followed by Barcelona (133) and Valencia (42).
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 253 verified decision-maker contacts tracked across these 183 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 28, 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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