Company lists · Data refreshed September 2026

Top 15 Grassroots consulting firms based in Madrid, Spain

RevenueBase identified 90 company matches for grassroots consulting firms associated with Madrid, Spain as of September 2026 and tracks 851 professional contacts across them, including 109 with verified work emails. Across Spain, Madrid is the largest hub for this category.

This list covers company matches for grassroots consulting firms 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
90Companies
851Contacts tracked
109Verified emails
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The 15 largest grassroots consulting firms based in Madrid, Spain

Ranked by team size
Top 15 of 90 company matches for grassroots consulting firms 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, 202651-200191 contacts →

Exact match

“Harmon is a strategic consulting firm that advises organizations on interpreting their environment and connecting with their stakeholders through non-market strategies.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchMadrid, SpainHQ recorded Sep 28, 202611-5050 contacts →

Exact match

“Somos consultores estratégicos de asuntos públicos.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchMadrid, SpainHQ recorded Sep 28, 202651-20045 contacts →

Exact match

“La asociación Trabe nace en el año 2005 con el compromiso de contribuir al cambio social mediante la incidencia, la sensibilización, la intervención social y el desarrollo de…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Sep 28, 202611-5033 contacts →

Exact match

“En RV+ Estrategia formamos un equipo diverso que ofrece a un servicio estratégico de asesoramiento integral a empresas y emprendedores, apoyo jurídico, fortalecimiento de sus…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Sep 28, 202651-20032 contacts →

Exact match

“180 Degrees Consulting - Madrid is a student-led social impact consultancy that provides pro-bono consulting services to non-profits, social enterprises and other socially minded…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchMadrid, SpainHQ recorded Sep 28, 202611-5022 contacts →

Exact match

“Andaira presta servicios de consultoría e investigación social, aportando soluciones para el diseño, ejecución y evaluación de proyectos sociales, políticas públicas y procesos…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Sep 28, 202611-5016 contacts →

Exact match

“MARLOW is a consultancy firm that specializes in Corporate Influence and Go-to-Market strategies to strengthen business and reputation.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Sep 28, 202611-5012 contacts →

Exact match

“Somos un equipo de expertos navegantes de negocio, especializados en guiar a empresarios y startups en la toma de decisiones, apoyándoles en su crecimiento hacia el éxito.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchMadrid, SpainHQ recorded Sep 28, 20261-1010 contacts →

Exact match

“Asesoramiento y consultoría tecnica Seguimiento y evaluación de políticas públicas y programas de intervención Desarrollo y aplicación de políticas públicas y programas de…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchMadrid, SpainHQ recorded Sep 28, 20261-104 contacts →

Exact match

“Somos una consultora especializada en gobernanza y gestión pública.”

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

“Consultoría especializada en servicio integral a StartUps, PYMES y ENL en materia de gestión y obtención de financiación para la creación, implementación y desarrollo de negocio…”

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

“Acompaña nace del esfuerzo y empeño de un grupo de profesionales de formación multidisclipinar con un compromiso primordial: Cubrir las necesidades sociales aportando nuestro…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Sep 28, 20261-103 contacts →

Exact match

“Somos un grupo interdisciplinar de profesionales con amplia experiencia en el Tercer Sector y una sólida red de alianzas y recursos.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchMadrid, SpainHQ recorded Sep 28, 20261-102 contacts →

Exact match

“BOOM Estudio es una consultora creativa especializada en estrategia de divulgación para el sector cultural, educativo y social.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Sep 28, 20261-101 contacts →

Exact match

“Dive In Consulting es una firma consultora que tiene como objetivo la creación, implementación y gestión de proyectos en áreas de desarrollo de negocio, innovación, seguros y…”

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

Showing 15 of 90 grassroots consulting firms based in Madrid, Spain

See the full list, filter by size, metro and specialty, and access 109 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Grassroots consulting firms based in Madrid, Spain at a glance

As of Sep 28, 2026
12.8%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
69
11-50
14
51-200
7

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 90 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 “grassroots consulting firms” 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 109 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.

Grassroots consulting firms by metro in Spain

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 “grassroots consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grassroots consulting firms are there based in Madrid, Spain?

RevenueBase identified 90 company matches for grassroots consulting firms 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?

Harmon Corporate Affairs tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Spain has the most grassroots consulting firms?

Madrid leads Spain with 90 company records, followed by Barcelona (53) and Bilbao (14).

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 109 professional contacts with verified work emails tracked across these 90 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.