Company lists · Data refreshed September 2026

Top 10 Net zero strategy firms based in Spain

RevenueBase identified 55 company matches for net zero strategy firms associated with Spain as of September 2026 and tracks 522 professional contacts across them, including 84 with verified work emails. Madrid is the largest hub.

This list covers company matches for net zero strategy firms associated with 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 20, 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 20, 2026 How this list was built
55Companies
522Contacts tracked
84Verified emails
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The 10 largest net zero strategy firms based in Spain

Ranked by team size
Top 10 of 55 company matches for net zero strategy firms based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchZaragoza, SpainHQ recorded Sep 20, 202611-5030 contacts →

Exact match

“Consultora ambiental y de sostenibilidad social y económica.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchBarcelona, SpainHQ recorded Sep 20, 202611-5027 contacts →

Exact match

“Somos una consultora especializada en el ámbito energético y sostenibilidad.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchSeville, SpainHQ recorded Sep 20, 202611-5025 contacts →

Exact match

“ECOTERRAE es una empresa creada con el objetivo de Generar Valor a proyectos Bajos en Carbono y con un Alto grado de Sostenibilidad, a través de:* Financiación del Carbono…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchPalencia, SpainHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“OMAWA es una consultora creada con la vocación de ofrecer un servicio diferente y de alto valor añadido, que permita abordar la SOSTENIBILIDAD en cualquier organización…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchMadrid, SpainHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“An Iberdrola company that is developing high-impact Nature-Based-Solution (NBS) projects that reduce the global carbon footprint, improve biodiversity, and promote a sustainable…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchBarcelona, SpainHQ recorded Sep 20, 2026501-1,00012 contacts →

Exact match

“Desde 2009, GreenFlex es el socio clave en la transformación energética, medioambiental y social de las organizaciones, permitiéndoles cambiar su trayectoria hacia una economía…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchMadrid, SpainHQ recorded Sep 20, 202611-509 contacts →

Exact match

“Ingenature | Sostenibilidad estratégica para real estate En Ingenature ayudamos a promotores e inversores a financiar, reducir riesgos y aumentar el valor de sus activos mediante…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchMadrid, SpainHQ recorded Sep 20, 20261-104 contacts →

Exact match

“Climate Strategy is a leading policy advisory and consulting firm specialised in the strategies, markets and opportunities created by the need to combat climate change.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchVila-real, SpainHQ recorded Sep 20, 20261-103 contacts →

Exact match

“Ayudamos a las organizaciones a crear su estrategia frente al cambio climático a través de diferentes servicios de consultoría ambiental.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchBarcelona, SpainHQ recorded Sep 20, 202651-2002 contacts →

Exact match

“EcoAct, es una consultora internacional y desarrolladora de proyectos, que ayuda a las organizaciones a lograr el éxito en sus ambiciones relacionadas con el clima.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 10 of 55 net zero strategy firms based in Spain

See the full list, filter by size, metro and specialty, and access 84 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Net zero strategy firms based in Spain at a glance

As of Sep 20, 2026
16.1%Verified-email coverage
9.5Average contacts per company
1-10Median size (employees)
32.7%Largest-city concentration · Madrid
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
35
11-50
14
51-200
4
501-1,000
1

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 55 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 Spain whose business descriptions match “net zero strategy 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 84 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 20, 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 “net zero strategy firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many net zero strategy firms are there based in Spain?

RevenueBase identified 55 company matches for net zero strategy firms associated with 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?

Ibersyd Iber Sostenibilidad Y Desarrollo tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most net zero strategy firms?

Madrid leads with 18 company records, followed by Barcelona (8) and Seville (4).

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 84 professional contacts with verified work emails tracked across these 55 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 20, 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.