Company lists · Data refreshed September 2026
Top 25 Advocacy consulting firms based in Spain
RevenueBase identified 205 advocacy consulting firms headquartered in Spain as of September 2026 and tracks 1,630 professional contacts across them, including 240 with verified work emails. Madrid is the largest hub.
This list covers advocacy 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 14, 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 advocacy consulting firms based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 191 contacts → | ||||
Partial evidence “Harmon is a strategic consulting firm that advises organizations on interpreting their environment and connecting with their stakeholders through non-market strategies.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 188 contacts → | ||||
Indirect evidence “Kreab es una consultora de Comunicación y Asuntos Públicos fundada en Suecia en 1970.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 96 contacts → | ||||
Indirect evidence “Nuestro único objetivo es que nuestros clientes alcancen los suyos” Personas comprometidas con el Cliente Profesionales del derecho, la economía, los recursos humanos, la…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 69 contacts → | ||||
Indirect evidence “Somos una consultora estratégica para instituciones públicas y organizaciones del Tercer Sector en España y Europa.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 50 contacts → | ||||
Indirect evidence “Somos consultores estratégicos de asuntos públicos.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 48 contacts → | ||||
Indirect evidence “Sincro es una consultora especializada en compliance laboral & dirección estratégica de personas y en asesoramiento fiscal y contable que presta servicios estratégicos tanto a…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 42 contacts → | ||||
Partial evidence “NITID – antes conocida como MAS Consulting España - es una consultora especializada en Asuntos Públicos y Comunicación con 20 años de experiencia trabajando con una larga lista de…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 33 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 32 contacts → | ||||
Indirect evidence “Somos una firma experta en procesos regulatorios y toma de decisiones dentro del Parlamento nacional (Congreso y Senado), Comunidades Autónomas y principales Ayuntamientos.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 23 contacts → | ||||
Indirect evidence “ideograma es una empresa de consultoría y asesoramiento en comunicación pública, con una visión global y transversal que contempla su dimensión política, social e institucional.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 23 contacts → | ||||
Partial evidence “We are a business group with over 50 years of experience, dedicated to provide comprehensive consulting services, consulting and management for small and medium enterprises (SMEs).” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 17 contacts → | ||||
Indirect evidence “Levin Public Health Affairs, una compañía de Tandem Healthcare Group, es una consultora estratégica de asuntos públicos, acceso al mercado y comunicación, especializada en salud…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 17 contacts → | ||||
Partial evidence “Edar Consulting es un despacho profesional con una larga y dilatada trayectoria, dedicados a ofrecer servicios profesionales de asesoría y consultoría empresarial en una…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 16 contacts → | ||||
Indirect evidence “MARLOW is a consultancy firm that specializes in Corporate Influence and Go-to-Market strategies to strengthen business and reputation.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 15 contacts → | ||||
Indirect evidence “Dédalo Comunicación is a communications consultancy offering a menu of services usually found only at larger companies.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 14 contacts → | ||||
Indirect evidence “En Prudencio González Asesores Empresariales iniciamos la actividad en Barcelona en el año 1967, orientados en la prestación de un servicio integral de alta calidad y en la…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 14 contacts → | ||||
Indirect evidence “40 años aportando valor a su negocio a través del asesoramiento fiscal, laboral y legal.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 13 contacts → | ||||
Indirect evidence “Consultoría de comunicación, investigación sociológica, estrategia y relaciones con el entorno.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 contacts → | ||||
Indirect evidence “Consultora de comunicación externa.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 10 contacts → | ||||
Indirect evidence “Ion es una consultora especializada en comunicación corporativa y lobby.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Partial evidence “At Mercaconsult, we help companies optimize their organization and ensure their growth through talent selection, strategic consulting, and legal and administrative advisory…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 contacts → | ||||
Indirect evidence “Aserinfisco es un equipo de hombres y mujeres especializado en el asesoramiento a empresas y entidades públicas, cuyos valores son la profesionalidad, la cercanía y la generación…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 contacts → | ||||
Indirect evidence “Despacho de alta consultoría para la captación y generación de recursos público-privados en las empresas.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Indirect evidence “Asesoría Creativa y Estratégica de Publicidad Integral que aporta soluciones a productos y marcas.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 contacts → | ||||
Indirect evidence “Silván & Miracle es una consultoría de asuntos públicos que diseña estrategias para el ámbito institucional, social y empresarial.” Source: RevenueBase Database · checked Sep 14, 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: advocacy 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 advocacy consulting firms.
- Partial evidence
- Its own public description names part of advocacy consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name advocacy 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 205 advocacy consulting firms based in Spain
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 240 reachable decision-makers.
Free signup · no credit card
Advocacy consulting firms based in Spain at a glance
As of Sep 14, 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 205 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 advocacy 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 “advocacy 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 advocacy 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 advocacy 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, 240 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 14, 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.
Advocacy 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 advocacy 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 advocacy consulting firms are there based in Spain?
RevenueBase identified 205 advocacy 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?
Harmon Corporate Affairs, headquartered in Madrid, tops this list with the largest team on record.
Which city has the most advocacy consulting firms?
Madrid leads with 66 headquartered companies, followed by Barcelona (24) and Bilbao (7).
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 240 verified decision-maker contacts tracked across these 205 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 14, 2026.
Ready to reach these companies? Verified emails and direct dials for all 205 advocacy consulting firms based in Spain. Start with a free account, no credit card.
Download this list →Related lists
Advocacy consulting firms by geography
- Advocacy consulting firms based in the United States
- Advocacy consulting firms based in Brazil
- Advocacy consulting firms based in Canada
- Advocacy consulting firms based in the United Kingdom
- Advocacy consulting firms based in France
- Advocacy consulting firms based in Australia
- Advocacy consulting firms based in Mexico
- Advocacy consulting firms based in Germany
- Advocacy consulting firms based in Italy
- Advocacy consulting firms based in Belgium
- Advocacy consulting firms based in the Netherlands
- Advocacy consulting firms based in Argentina
Browse the directory
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Advocacy consulting firms based in the United States
- Advocacy consulting firms based in Brazil
- Advocacy consulting firms based in Canada
- Advocacy consulting firms based in the United Kingdom
- Advocacy consulting firms based in France
- Advocacy consulting firms based in Australia