Company lists · Data refreshed September 2026

Top 25 Transmission line consulting firms based in Spain

Name: Transmission line consulting firms based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 343 companies tracked

RevenueBase identified 343 transmission line consulting firms headquartered in Spain as of September 2026 and tracks 5,283 professional contacts across them, including 366 with verified work emails. Madrid is the largest hub.

This list covers transmission line 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 29, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

343Companies

5,283Contacts tracked

366Verified emails

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The 25 largest transmission line consulting firms based in Spain

Ranked by team size

Top 25 of 343 transmission line consulting firms based in Spain, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to transmission line consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Iplan Gestión Integral	Indirect evidence	Barcelona, SpainHQ checked Sep 29, 2026	501-1,000	363 contacts →
	Indirect evidence “Iplan is a company related to the engineering services of projects developed mainly in the energy sector, civil works, renewable energies and environment.” Source: RevenueBase Database · checked Sep 29, 2026
2	JG Ingenieros S.A	Indirect evidence	Barcelona, SpainHQ checked Sep 29, 2026	51-200	346 contacts →
	Indirect evidence “JG Ingenieros, S.A.” Source: RevenueBase Database · checked Sep 29, 2026
3	Ingeniería Estudios Y Proyectos Nip,s.A. Nipsa	Partial evidence	Madrid, SpainHQ checked Sep 29, 2026	201-500	236 contacts →
	Partial evidence “Ingeniería Estudios y Proyectos NIP, S.A.(NIPSA) is a Spanish engineering and consulting company created in 1976 with the purpose of providing high quality and flexible technical…” Source: RevenueBase Database · checked Sep 29, 2026
4	Ecointegral Ingeniería, SL	Partial evidence	Córdoba, SpainHQ checked Sep 29, 2026	201-500	234 contacts →
	Partial evidence “ECOINTEGRAL INGENIERÍA is an independent company of advanced engineering and consulting firm that operates in 3 areas of expertise: Energy, Telecommunications and Environment.” Source: RevenueBase Database · checked Sep 29, 2026
5	Quadrante Izharia	Indirect evidence	Las Rozas De Madrid, SpainHQ checked Sep 29, 2026	1,001-5,000	178 contacts →
	Indirect evidence “Nos dedicamos a la Ingeniería de Subestaciones y Lineas de AT y MT.” Source: RevenueBase Database · checked Sep 29, 2026
6	Proes Consultores	Indirect evidence	Pozuelo De Alarcón, SpainHQ checked Sep 29, 2026	51-200	148 contacts →
	Indirect evidence “PROES Consultores, S.A.” Source: RevenueBase Database · checked Sep 29, 2026
7	Vestel Ingenieros	Indirect evidence	Paterna, SpainHQ checked Sep 29, 2026	51-200	135 contacts →
	Indirect evidence “Vestel Ingenieros es una empresa con 20 años de experiencia que tiene el propósito de convertirse en la ingeniería eléctrica nº1 de España.” Source: RevenueBase Database · checked Sep 29, 2026
8	Voltae Engineering	Indirect evidence	Seville, SpainHQ checked Sep 29, 2026	51-200	132 contacts →
	Indirect evidence “Somos una compañía de ingeniería y consultoría altamente especializada, ofreciendo servicios integrales de alto valor en proyectos de transmisión, distribución y generación de…” Source: RevenueBase Database · checked Sep 29, 2026
9	Emurtel	Indirect evidence	El Palmar (murcia), SpainHQ checked Sep 29, 2026	51-200	92 contacts →
	Indirect evidence “Emurtel es una compañía líder de ingeniería y consultoría multidisciplinar orientada a la gestión integral de proyectos, ofreciendo soluciones de valor añadido en el diseño…” Source: RevenueBase Database · checked Sep 29, 2026
10	EACOM	Indirect evidence	Barcelona, SpainHQ checked Sep 29, 2026	51-200	90 contacts →
	Indirect evidence “EACOM S.A.(Enginyers i Arquitectes, Consultors d'Obres i Muntatges S.A.) es una sociedad privada consultora de servicios y actividades de ingeniería, que nace con las obras…” Source: RevenueBase Database · checked Sep 29, 2026
11	Tresca Ingeniería, S.A	Indirect evidence	Léon, SpainHQ checked Sep 29, 2026	51-200	78 contacts →
	Indirect evidence “Tresca Ingeniería nace en 2001, ofreciendo a sus clientes servicios de ingeniería y consultoría en los sectores industrial, terciario y residencial.” Source: RevenueBase Database · checked Sep 29, 2026
12	Azigrene Energy Consulting	Indirect evidence	Valencia/valència, SpainHQ checked Sep 29, 2026	51-200	58 contacts →
	Indirect evidence “Azigrene es una empresa de servicios de Consultoría e Ingeniería Energética, que desarrolla su actividad en- Reducción del coste: Definición de la mejor estrategia de compra…” Source: RevenueBase Database · checked Sep 29, 2026
13	Iver Ingeniería & Arquitectura	Indirect evidence	Valencia/valència, SpainHQ checked Sep 29, 2026	n/a	39 contacts →
	Indirect evidence “En IVER Ingeniería & Arquitectura nos avalan 28 años de experiencia como consultora de Ingeniería & Arquitectura en Valencia.” Source: RevenueBase Database · checked Sep 29, 2026
14	Conelec S.A	Indirect evidence	Vigo, SpainHQ checked Sep 29, 2026	51-200	38 contacts →
	Indirect evidence “CONELEC, S.A.” Source: RevenueBase Database · checked Sep 29, 2026
15	GAROC	Indirect evidence	Ciudad Real, SpainHQ checked Sep 29, 2026	201-500	35 contacts →
	Indirect evidence “GAROC (GRUPO DE ARQUITECTURA Y OBRA CIVIL), nace en mayo de 2003 en Ciudad Real donde tiene su sede Social.” Source: RevenueBase Database · checked Sep 29, 2026
16	Autronic Comunicaciones	Indirect evidence	Seville, SpainHQ checked Sep 29, 2026	51-200	34 contacts →
	Indirect evidence “EMPRESA Ofrecemos a nuestros clientes un servicio global de ingeniería de sistemas integrales, especializados en proyectos llave en mano y desarrollados con el máximo compromiso…” Source: RevenueBase Database · checked Sep 29, 2026
17	Cuarta Esfera	Indirect evidence	Laguna De Duero, SpainHQ checked Sep 29, 2026	51-200	32 contacts →
	Indirect evidence “Desde nuestra sede en Valladolid, Cuarta Esfera acumula más de 29 años de experiencia ofreciendo soluciones innovadoras en ingeniería industrial.” Source: RevenueBase Database · checked Sep 29, 2026
18	Itecla Ingeniería S.L	Indirect evidence	Baena, SpainHQ checked Sep 29, 2026	51-200	30 contacts →
	Indirect evidence “ITECLA es una ingeniería especializada en infraestructuras eléctricas de alta y media tensión y en proyectos de energías renovables a escala utility.” Source: RevenueBase Database · checked Sep 29, 2026
19	ATI Consult	Indirect evidence	Pozuelo De Alarcón, SpainHQ checked Sep 29, 2026	51-200	29 contacts →
	Indirect evidence “ATI is an engineering consultancy specialized in renewable energy and infrastructure projects.” Source: RevenueBase Database · checked Sep 29, 2026
20	Incoa Grupo	Partial evidence	Granada, SpainHQ checked Sep 29, 2026	51-200	29 contacts →
	Partial evidence “INCOA Grupo is a civil engineering and architecture consulting firm.” Source: RevenueBase Database · checked Sep 29, 2026
21	Inove Ingeniería	Indirect evidence	San Fernando De Henares, SpainHQ checked Sep 29, 2026	51-200	28 contacts →
	Indirect evidence “Especialistas en la realización de Ingeniería Global para infraestructuras eléctricas.” Source: RevenueBase Database · checked Sep 29, 2026
22	Esparplant	Indirect evidence	Orkoien, SpainHQ checked Sep 29, 2026	11-50	24 contacts →
	Indirect evidence “Esparplant es una empresa de ingeniería especializada en el diseño, asesoría y seguimiento de proyectos de construcción e instalaciones en plantas industriales.” Source: RevenueBase Database · checked Sep 29, 2026
23	Soltec Ingenieros S.L	Partial evidence	Vigo, SpainHQ checked Sep 29, 2026	11-50	23 contacts →
	Partial evidence “Soltec Ingenieros SL, founded in 2001, is an independent engineering and consulting firm based in Vigo, Spain.” Source: RevenueBase Database · checked Sep 29, 2026
24	Ogisa Infraestructuras S.A	Indirect evidence	Zaragoza, SpainHQ checked Sep 29, 2026	51-200	22 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
25	Aelvasa	Indirect evidence	Bilbao, SpainHQ checked Sep 29, 2026	51-200	20 contacts →
	Indirect evidence “Fue constituida oficialmente en Febrero de 1985 y empezó a funcionar como almacén distribuidor de material eléctrico en Bizkaia.” Source: RevenueBase Database · checked Sep 29, 2026

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: transmission line 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 transmission line consulting firms.
Partial evidence: Its own public description names part of transmission line consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transmission line 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 343 transmission line consulting firms based in Spain

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Transmission line consulting firms based in Spain at a glance

As of Sep 29, 2026

6.9%Verified-email coverage

15.4Average contacts per company

1-10Median size (employees)

9.9%Largest-city concentration · Madrid

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

184

11-50

108

51-200

201-500

501-1,000

1,001-5,000

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 343 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 transmission line 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 “transmission line 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 transmission line 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 transmission line 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, 366 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 29, 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.

Transmission line consulting firms by metro

Transmission line consulting firms in Madrid34

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 transmission line 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 transmission line consulting firms are there based in Spain?

RevenueBase identified 343 transmission line 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?

Iplan Gestión Integral, headquartered in Barcelona, tops this list with the largest team on record.

Which city has the most transmission line consulting firms?

Madrid leads with 34 headquartered companies, followed by Barcelona (28) and Seville (17).

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 366 verified decision-maker contacts tracked across these 343 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 29, 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.