Company lists · Data refreshed September 2026

Top 25 Telecom infrastructure consulting companies based in Spain

Name: Telecom infrastructure consulting companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 748 companies tracked

RevenueBase identified 748 telecom infrastructure consulting companies headquartered in Spain as of September 2026 and tracks 13,809 professional contacts across them, including 1,494 with verified work emails. Madrid is the largest hub.

This list covers telecom infrastructure consulting companies 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 19, 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 19, 2026 86% judged on-target in blind review

748Companies

13,809Contacts tracked

1,494Verified emails

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The 25 largest telecom infrastructure consulting companies based in Spain

Ranked by team size

Top 25 of 748 telecom infrastructure consulting companies based in Spain, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to telecom infrastructure consulting companies: 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	Zelenza	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	1,001-5,000	1,125 contacts →
	Indirect evidence “En Zelenza somos líderes en servicios integrados TIC, Ingeniería de Redes Telco, Defensa y Seguridad y Customer Experience.” Source: RevenueBase Database · checked Sep 19, 2026
2	Between Technology	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 2026	501-1,000	772 contacts →
	Indirect evidence “Boost your digital future with BETWEEN Technology, your indispensable strategic partner in the thrilling world of engineering and IT.” Source: RevenueBase Database · checked Sep 19, 2026
3	Nunsys	Indirect evidence	Paterna, SpainHQ checked Sep 19, 2026	1,001-5,000	739 contacts →
	Indirect evidence “NUNSYS es una empresa especializada en la Implantación de Soluciones Integrales de Tecnología.” Source: RevenueBase Database · checked Sep 19, 2026
4	OFG	Partial evidence	Córdoba, SpainHQ checked Sep 19, 2026	1,001-5,000	701 contacts →
	Partial evidence “OFG is an international company with more than 20 years of experience in the telecommunications sector.” Source: RevenueBase Database · checked Sep 19, 2026
5	Comfica Soluciones Integrales S.L	Partial evidence	Fuenlabrada, SpainHQ checked Sep 19, 2026	201-500	684 contacts →
	Partial evidence “Empresa especializada en la ingenieria, desarrollo, construccion, instalación, y puesta en marcha de instalaciones de telecomunicaciones, electricidad, señalización, redes de…” Source: RevenueBase Database · checked Sep 19, 2026
6	Insyte Instalaciones	Partial evidence	Getafe, SpainHQ checked Sep 19, 2026	1,001-5,000	628 contacts →
	Partial evidence “Insyte Instalaciones inicia su actividad en 1990 como empresa instaladora en el sector eléctrico y de telecomunicaciones.” Source: RevenueBase Database · checked Sep 19, 2026
7	NAE	Strong evidence	Barcelona, SpainHQ checked Sep 19, 2026	501-1,000	503 contacts →
	Strong evidence “Nae is an international consulting firm specialized in the telecom sector, providing deal & strategy, business, and technology advisory services.” Source: RevenueBase Database · checked Sep 19, 2026
8	Axians Spain	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	501-1,000	370 contacts →
	Indirect evidence “En Axians, la marca especializada en TIC de VINCI Energies, impulsamos a nuestros clientes -empresas del sector privado, entidades del sector público, operadores y proveedores de…” Source: RevenueBase Database · checked Sep 19, 2026
9	Ingeniería Estudios Y Proyectos Nip,s.A. Nipsa	Partial evidence	Madrid, SpainHQ checked Sep 19, 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 19, 2026
10	Airon Group	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	201-500	162 contacts →
	Indirect evidence “El Grupo AirON es una compañía de consultoría e innovación, servicios tecnológicos y outsourcing.” Source: RevenueBase Database · checked Sep 19, 2026
11	Experience IT Solutions	Partial evidence	Madrid, SpainHQ checked Sep 19, 2026	201-500	155 contacts →
	Partial evidence “eXperience es una empresa de servicios orientada al mercado de las Tecnologías de la Información y las Telecomunicaciones, dando soluciones integrales en las áreas de consultoría…” Source: RevenueBase Database · checked Sep 19, 2026
12	Powernet	Partial evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	150 contacts →
	Partial evidence “Somos una marca global de Ingeniería en integración de soluciones de Telecomunicaciones y Sistemas IT con más de 35 años de experiencia.” Source: RevenueBase Database · checked Sep 19, 2026
13	Aldaba	Indirect evidence	A Coruña, SpainHQ checked Sep 19, 2026	51-200	148 contacts →
	Indirect evidence “Somos ALDABA.” Source: RevenueBase Database · checked Sep 19, 2026
14	Inet Smart ITC	Indirect evidence	Cornellà De Llobregat, SpainHQ checked Sep 19, 2026	201-500	139 contacts →
	Indirect evidence “Inet es una empresa del grupo AXIS CORPORATE especializada en procesos de despliegue y mantenimiento de infraestructuras tecnológicas y comunicaciones para empresas.” Source: RevenueBase Database · checked Sep 19, 2026
15	Geci Group	Partial evidence	El Puerto De Santa María, SpainHQ checked Sep 19, 2026	51-200	126 contacts →
	Partial evidence “GECI is a worldwide High Technology, Engineering, E&M support, Outsourcing & Logistics and Consulting Group, which has been providing for over 25 years technical and commercial…” Source: RevenueBase Database · checked Sep 19, 2026
16	Instelca	Partial evidence	Málaga, SpainHQ checked Sep 19, 2026	201-500	118 contacts →
	Partial evidence “El Grupo INSTELCA es proveedor global de servicios de Telecomunicaciones, Redes e Informática con más de 30 años de experiencia y con una clara orientación al clientes que nos ha…” Source: RevenueBase Database · checked Sep 19, 2026
17	Smartel España	Strong evidence	Erandio, SpainHQ checked Sep 19, 2026	51-200	110 contacts →
	Strong evidence “Smart Telecom Consulting, empresa de ingeniería especializada en el campo de la telefonia móvil ofreciendo soluciones integrales a nuestros clientes desde el año 2004.” Source: RevenueBase Database · checked Sep 19, 2026
18	Einzelnet	Indirect evidence	Madrid, SpainHQ checked Sep 19, 2026	51-200	106 contacts →
	Indirect evidence “EinzelNet es parte del ecosistema de Unikal, un especialista de especialistas con un extenso porfolio de servicios diseñado para de responder a las necesidades tecnológicas de…” Source: RevenueBase Database · checked Sep 19, 2026
19	Nokia Tecss	Partial evidence	Alcobendas, SpainHQ checked Sep 19, 2026	201-500	104 contacts →
	Partial evidence “NOKIA TECSS somos una empresa de servicios del sector de las Telecomunicaciones.” Source: RevenueBase Database · checked Sep 19, 2026
20	Cableven	Partial evidence	Málaga, SpainHQ checked Sep 19, 2026	501-1,000	103 contacts →
	Partial evidence “Empresa cualificada y especializada en la instalación y mantenimiento de redes y equipos de telecomunicaciones.” Source: RevenueBase Database · checked Sep 19, 2026
21	Emurtel	Indirect evidence	El Palmar (murcia), SpainHQ checked Sep 19, 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 19, 2026
22	Indigo Grup	Indirect evidence	El Prat De Llobregat, SpainHQ checked Sep 19, 2026	11-50	91 contacts →
	Indirect evidence “Indigo Grup es una organización dedicada a la consultoría e intergración de soluciones TIC profesionales.” Source: RevenueBase Database · checked Sep 19, 2026
23	EACOM	Indirect evidence	Barcelona, SpainHQ checked Sep 19, 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 19, 2026
24	Telecomunicación DE Levante SL	Partial evidence	Alicante, SpainHQ checked Sep 19, 2026	1,001-5,000	90 contacts →
	Partial evidence “Telecomunicación de Levante (Teleco) inició su actividad hace más de tres décadas con Telefónica como principal cliente.” Source: RevenueBase Database · checked Sep 19, 2026
25	BE Beyond	Indirect evidence	Mairena Del Aljarafe, SpainHQ checked Sep 19, 2026	51-200	90 contacts →
	Indirect evidence “Beyond Mobility es una consultora con amplia experiencia en proyectos de comunicaciones y tecnológicos.” Source: RevenueBase Database · checked Sep 19, 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: telecom infrastructure consulting companies. 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 telecom infrastructure consulting companies.
Partial evidence: Its own public description names part of telecom infrastructure consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecom infrastructure consulting companies. 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 748 telecom infrastructure consulting companies based in Spain

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Telecom infrastructure consulting companies based in Spain at a glance

As of Sep 19, 2026

10.8%Verified-email coverage

18.5Average contacts per company

11-50Median size (employees)

19.8%Largest-city concentration · Madrid

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

348

11-50

273

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 748 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 telecom infrastructure consulting companies, 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 “telecom infrastructure consulting companies”. 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 telecom infrastructure consulting companies), 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 telecom infrastructure consulting companies, 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, 1,494 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 19, 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.

Telecom infrastructure consulting companies by metro

Telecom infrastructure consulting companies in Madrid148
Telecom infrastructure consulting companies in Barcelona65

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 telecom infrastructure consulting companies, 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 telecom infrastructure consulting companies are there based in Spain?

RevenueBase identified 748 telecom infrastructure consulting companies 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?

Zelenza, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most telecom infrastructure consulting companies?

Madrid leads with 148 headquartered companies, followed by Barcelona (65) and Murcia (20).

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 1,494 verified decision-maker contacts tracked across these 748 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 19, 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.