Company lists · Data refreshed September 2026

Top 12 Investment banking platforms based in Madrid, Spain

RevenueBase identified 28 company matches for investment banking platforms associated with Madrid, Spain as of September 2026 and tracks 2,081 professional contacts across them, including 494 with verified work emails. Across Spain, Madrid is the largest hub for this category.

This list covers company matches for investment banking platforms associated with Madrid, Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
28Companies
2,081Contacts tracked
494Verified emails
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The 12 largest investment banking platforms based in Madrid, Spain

Ranked by team size
Top 12 of 28 company matches for investment banking platforms based in Madrid, Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMadrid, SpainHQ recorded Sep 28, 2026501-1,000350 contacts →

Exact match

“Open Digital Services (ODS) was established together with Openbank as a pivotal part of Santander Group’s technical innovation in digital banking.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Sep 28, 2026201-500314 contacts →

Exact match

“AltamarCAM is a leading investment manager in private markets whose main objective is to provide institutional investors, including insurance companies, pension funds and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Sep 28, 202651-200188 contacts →

Exact match

“ONEtoONE Group is an M&A Advisory Network specializing in Global M&A Advisory for the Middle-Market and Alternative Assets Management.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Sep 28, 202651-200139 contacts →

Exact match

“We are active in investment banking, asset management and direct investments.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Sep 28, 202611-5088 contacts →

Exact match

“Founded in 2004, AZ Capital is an independent investment bank that provides financial advisory services in corporate transactions such as mergers and acquisitions, divestitures…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchMadrid, SpainHQ recorded Sep 28, 202651-20077 contacts →

Exact match

“Miraltabank is a credit institution that provides investment banking and asset management services to private and institutional clients.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Sep 28, 202611-5059 contacts →

Exact match

“Kenta Capital es un banco de inversión independiente especializado en deuda.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Sep 28, 202611-5029 contacts →

Exact match

“Key Capital Partners is an independent financial firm dedicated to corporate clients and qualified investors.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchMadrid, SpainHQ recorded Sep 28, 202611-5018 contacts →

Exact match

“V4 Financial Partners, S.A, antes Altium Capital, S.A, es una firma española de banca de inversión especializada en corporate finance, con amplia experiencia en el asesoramiento…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Sep 28, 202611-5011 contacts →

Exact match

“Óptima provides investment banking services and financial and strategic advisory.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchMadrid, SpainHQ recorded Sep 28, 20261-103 contacts →

Exact match

“Capital Vision es una empresa de ingeniería financiera especializada en la elaboración de productos de inversión.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchMadrid, SpainHQ recorded Sep 28, 20261-103 contacts →

Exact match

“Atrian Partners es una firma de servicios de banca de inversión independiente especializada en asesoramiento en procesos de fusiones y adquisiciones de empresas, consecución de…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 12 of 28 investment banking platforms based in Madrid, Spain

See the full list, filter by size, metro and specialty, and access 494 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Investment banking platforms based in Madrid, Spain at a glance

As of Sep 28, 2026
23.7%Verified-email coverage
74.3Average contacts per company
11-50Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
10
51-200
5
201-500
1
501-1,000
2

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 28 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Madrid, Spain whose business descriptions match “investment banking platforms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 494 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “investment banking platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many investment banking platforms are there based in Madrid, Spain?

RevenueBase identified 28 company matches for investment banking platforms associated with Madrid, Spain as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Open Digital Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Spain has the most investment banking platforms?

Madrid leads Spain with 28 company records, followed by Barcelona (5) and Almazora (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 494 professional contacts with verified work emails tracked across these 28 companies; direct dials are available where recorded.

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 SmartSearch, 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.