Company lists · Data refreshed September 2026
Top 25 Boutique investment banks based in Madrid, Spain
RevenueBase identified 241 boutique investment banks headquartered in Madrid, Spain as of September 2026 and tracks 4,029 professional contacts across them, including 756 with verified work emails. Madrid is the largest hub.
This list covers boutique investment banks 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 16, 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 boutique investment banks based in Madrid, Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 314 contacts → | ||||
Partial evidence “AltamarCAM is a leading investment manager in private markets whose main objective is to provide institutional investors, including insurance companies, pension funds and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 279 contacts → | ||||
Indirect evidence “Arcano Partners, founded in 2003, is an independent global firm with more than 20 years of experience in international financial advisory and private markets asset management.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 173 contacts → | ||||
Indirect evidence “Ahorro Corporación Financiera, S.A.U.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 128 contacts → | ||||
Partial evidence “GBS Finance is a leading independent investment bank in Southern Europe, Latam and China.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 104 contacts → | ||||
Indirect evidence “AXA Exclusiv nace con el objetivo de dar respuesta a los clientes más exigentes, aquellos que necesitan un asesoramiento patrimonial estable y continuado de la mano de un…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 95 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 59 contacts → | ||||
Indirect evidence “Kenta Capital es un banco de inversión independiente especializado en deuda.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 46 contacts → | ||||
Indirect evidence “We are Orbyn Group – a driving force in optimizing financial performance for companies and investors in the alternative market.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 29 contacts → | ||||
Indirect evidence “Key Capital Partners is an independent financial firm dedicated to corporate clients and qualified investors.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 23 contacts → | ||||
Indirect evidence “Welcome Asset Management es una firma de asesoramiento y gestión financiera que nace como una alternativa innovadora frente al entorno económico actual y las normativas del sector.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 16 contacts → | ||||
Indirect evidence “Clearwater es una empresa independiente de finanzas corporativas de ámbito Europeo.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 15 contacts → | ||||
Indirect evidence “Oderis es una firma de consultoría independiente y multidisciplinaria que cuenta con 17 socios y directores y 175 colaboradores que trabajan en consultoría financiera.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 14 contacts → | ||||
Partial evidence “New Momentum brings together a wide range of financial activities and is broken down into three different entities: Advisory, Investment and Training.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Indirect evidence “En Owl Partners Wealth Advisors nos especializamos en inversiones financieras e inmobiliarias, consultoría y asesoramiento fiscal-legal.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 11 contacts → | ||||
Partial evidence “Óptima provides investment banking services and financial and strategic advisory.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Indirect evidence “Firma especializada en asesoramiento corporativo y estratégico a empresas, accionistas y directivos.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11 contacts → | ||||
Indirect evidence “In March 2024, Sigrun Partners was acquired and is now fully integrated within Renta 4 Banco.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 10 contacts → | ||||
Partial evidence “Agere, was founded by a group of highly qualified and experienced Corporate and Investment Banking professionals, with over 60 years of combined successful dedication to the…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 contacts → | ||||
Indirect evidence “Graells March Abogados, with offices in Madrid and Barcelona, is a firm specialized in rendering financial and legal advice on real estate transactions and urban planning, bank…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Indirect evidence “RS Corporate Finance es una empresa de asesoramiento financiero que nace en el año 2012 fundada por un profesional con experiencia en el sector de banca de inversión.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 contacts → | ||||
Indirect evidence “Consilio Asesores Patrimoniales Independientes, EAF, registrada en la CNMV con el número 133, es una firma de asesoramiento financiero que trata de dar respuesta a una demanda…” Source: RevenueBase Database · checked Sep 16, 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: boutique investment banks. 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 boutique investment banks.
- Partial evidence
- Its own public description names part of boutique investment banks, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name boutique investment banks. 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 241 boutique investment banks based in Madrid, Spain
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Boutique investment banks based in Madrid, Spain at a glance
As of Sep 16, 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 241 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 boutique investment banks, 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 “boutique investment banks”. 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 boutique investment banks), 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 boutique investment banks, 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, 756 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 16, 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.
Boutique investment banks by metro in Spain
- Boutique investment banks in Madrid241
- Boutique investment banks in Barcelona124
- Boutique investment banks in Valencia25
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 boutique investment banks, 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 boutique investment banks are there based in Madrid, Spain?
RevenueBase identified 241 boutique investment banks 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?
Altamarcam Partners, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most boutique investment banks?
Madrid leads with 241 headquartered companies, followed by Barcelona (124) and Valencia (25).
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 756 verified decision-maker contacts tracked across these 241 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 16, 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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