Company lists · Data refreshed September 2026
Top 25 Transaction support consulting firms based in Spain
RevenueBase identified 431 transaction support consulting firms headquartered in Spain as of September 2026 and tracks 3,956 professional contacts across them, including 421 with verified work emails. Madrid is the largest hub.
This list covers transaction support consulting 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 29, 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 transaction support consulting firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,097 contacts → | ||||
Indirect evidence “En Wipro impulsamos el progreso.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 188 contacts → | ||||
Indirect evidence “ONEtoONE Group is an M&A Advisory Network specializing in Global M&A Advisory for the Middle-Market and Alternative Assets Management.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 138 contacts → | ||||
Indirect evidence “Lener Asesores is composed of lawyers and economists and has more than 35 years of experience in legal and economic advice to companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 128 contacts → | ||||
Indirect evidence “GBS Finance is a leading independent investment bank in Southern Europe, Latam and China.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 95 contacts → | ||||
Partial evidence “NORGESTION is a management consulting company operating from five offices in Spain (Madrid, Barcelona, Bilbao, San Sebastian and Pamplona) and specialised in three areas: ·…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 88 contacts → | ||||
Partial evidence “Founded in 2004, AZ Capital is an independent investment bank that provides financial advisory services in corporate transactions such as mergers and acquisitions, divestitures…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 72 contacts → | ||||
Indirect evidence “ILV SILVER is a professional services firm that provides a wide range of deal advisory, financial, audit, accounting, tax, legal, labour and ESG and other professional services…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 44 contacts → | ||||
Indirect evidence “We are an International Corporate Finance advisory firm based in Barcelona and Madrid with a focus on M&A, Private Equity Advisory, Financial & Strategic Advisory and Financing…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 41 contacts → | ||||
Indirect evidence “VIR AUDIT es una firma multidisciplinar que presta servicios de auditoría, consultoría y finanzas corporativas ofreciendo una amplia gama de servicios profesionales en estos…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 33 contacts → | ||||
Indirect evidence “We are a M&A boutique providing specialized advisory services in Corporate Finance for the last 30 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 33 contacts → | ||||
Partial evidence “IKEI is one of the corporate consulting and advisory firms with the best track record in its field of activity.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 33 contacts → | ||||
Indirect evidence “Una firma de consultoría estratégica y de operaciones independiente, orientada a facilitar la transformación empresarial.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 30 contacts → | ||||
Indirect evidence “Confianz es una asesoría y consultoría de empresas, fundada en 1994, con oficinas en Madrid, Bilbao y San Sebastián.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 28 contacts → | ||||
Indirect evidence “Somos una firma dedicada al asesoramiento en finanzas corporativas especializados en fusiones y adquisiciones (M&A).” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 25 contacts → | ||||
Indirect evidence “TAE Europa specialises in mergers and acquisitions in the food, beverage and agricultural sectors.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 25 contacts → | ||||
Partial evidence “VALTECSA is a consulting, advisory & valuation firm with more than 30 years experience in the market and regulated by the Royal Institution of Chartered Surveyors (RICS®) for…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 24 contacts → | ||||
Indirect evidence “NAIBC es una sociedad especializada en la prestación de servicios de consultoría empresarial, reestructuración societaria, adquisición, fusión y liquidación de entidades del…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Indirect evidence “Nuestro propósito es encontrar certezas en la complejidad del mundo de los negocios, facilitando el acceso a las ideas fundamentales del Management para impulsar el desarrollo del…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 23 contacts → | ||||
Indirect evidence “Servicios de consultoría de empresas, asesoramiento fiscal, contable y laboral, auditoría, asesoramiento financiero, creación de empresas.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 22 contacts → | ||||
Indirect evidence “Altria Corpo, with offices in Barcelona and Madrid, is made up of professionals with more than 25 years of experience in corporate banking, investment banking, commercial banking…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 20 contacts → | ||||
Indirect evidence “Lexaudit, nace en 2010 producto de la integración de los despachos profesionales VILELLA, MAYMI Y ASOCIADOS Y ARQUED AUDITORES que, a lo largo de más de veinticinco años de…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 19 contacts → | ||||
Indirect evidence “Empresa de Consultoría, localizada en Elche (Alicante), creada en 1975 y dedicada al asesoramiento integral de empresas.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 contacts → | ||||
Indirect evidence “Puente China was born, grows and consolidates itself as a professional services company that offers its clients a 360 degree coverage of the M&A universe, focusing on the main…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 16 contacts → | ||||
Indirect evidence “Clearwater es una empresa independiente de finanzas corporativas de ámbito Europeo.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 16 contacts → | ||||
Strong evidence “Consulting | Transaction Services | M&A | Finance 360 DISCOVER YOUR BUSINESS POTENTIAL We aim to be your most trusted partner, making sure your business succeeds.” Source: RevenueBase Database · checked Sep 29, 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: transaction support 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 transaction support consulting firms.
- Partial evidence
- Its own public description names part of transaction support consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name transaction support 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 431 transaction support consulting firms based in Spain
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Transaction support consulting firms based in Spain at a glance
As of Sep 29, 2026Companies by employee count
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 431 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 transaction support 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 Spain whose own description of what they do matches “transaction support 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 transaction support 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 transaction support consulting 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, 421 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 29, 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.
Transaction support consulting 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 transaction support 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 transaction support consulting firms are there based in Spain?
RevenueBase identified 431 transaction support consulting 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?
WIPRO, headquartered in Valencia, tops this list with the largest team on record.
Which city has the most transaction support consulting firms?
Madrid leads with 179 headquartered companies, followed by Barcelona (92) and Valencia (19).
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 421 verified decision-maker contacts tracked across these 431 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 29, 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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