Company lists · Data refreshed September 2026

Top 25 Telecommunications consultants based in Spain

Name: Telecommunications consultants based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 1,124 companies tracked

RevenueBase identified 1,124 telecommunications consultants headquartered in Spain as of September 2026 and tracks 16,591 professional contacts across them, including 1,708 with verified work emails. Madrid is the largest hub.

This list covers telecommunications consultants 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 30, 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 30, 2026 86% judged on-target in blind review

1,124Companies

16,591Contacts tracked

1,708Verified emails

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The 25 largest telecommunications consultants based in Spain

Ranked by team size

Top 25 of 1,124 telecommunications consultants based in Spain, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications consultants: 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 30, 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 30, 2026
2	Between Technology	Indirect evidence	Barcelona, SpainHQ checked Sep 30, 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 30, 2026
3	Nunsys	Indirect evidence	Paterna, SpainHQ checked Sep 30, 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 30, 2026
4	OFG	Partial evidence	Córdoba, SpainHQ checked Sep 30, 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 30, 2026
5	Comfica Soluciones Integrales S.L	Indirect evidence	Fuenlabrada, SpainHQ checked Sep 30, 2026	201-500	684 contacts →
	Indirect 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 30, 2026
6	NAE	Indirect evidence	Barcelona, SpainHQ checked Sep 30, 2026	501-1,000	503 contacts →
	Indirect 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 30, 2026
7	SIRT	Indirect evidence	Barcelona, SpainHQ checked Sep 30, 2026	201-500	449 contacts →
	Indirect evidence “Experiencia, especialización y calidad de servicio son los tres valores clave en los que SIRT basa su actividad y la relación con sus clientes.” Source: RevenueBase Database · checked Sep 30, 2026
8	Commcenter	Indirect evidence	A Coruña, SpainHQ checked Sep 30, 2026	501-1,000	372 contacts →
	Indirect evidence “CommCenter es uno de los distribuidores de telecomunicaciones independientes de mayor impacto en nuestro país.” Source: RevenueBase Database · checked Sep 30, 2026
9	Nunegal Consulting	Indirect evidence	A Coruña, SpainHQ checked Sep 30, 2026	201-500	249 contacts →
	Indirect evidence “Nunegal Consulting es una empresa especializada en servicios TIC, desarrollo de software y asesoramiento.” Source: RevenueBase Database · checked Sep 30, 2026
10	Experience IT Solutions	Indirect evidence	Madrid, SpainHQ checked Sep 30, 2026	201-500	155 contacts →
	Indirect 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 30, 2026
11	Powernet	Indirect evidence	Madrid, SpainHQ checked Sep 30, 2026	51-200	150 contacts →
	Indirect 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 30, 2026
12	Aldaba	Indirect evidence	A Coruña, SpainHQ checked Sep 30, 2026	51-200	148 contacts →
	Indirect evidence “Somos ALDABA.” Source: RevenueBase Database · checked Sep 30, 2026
13	Sistel	Indirect evidence	Alicante, SpainHQ checked Sep 30, 2026	51-200	131 contacts →
	Indirect evidence “Somos una empresa de servicios de asesoramiento para proyectos estratégicos y para el diseño y despliegue de infraestructuras de sistemas, servidores y gestión de almacenamiento…” Source: RevenueBase Database · checked Sep 30, 2026
14	Ambar Telecomunicaciones	Indirect evidence	Santander, SpainHQ checked Sep 30, 2026	201-500	126 contacts →
	Indirect evidence “Ámbar Telecomunicaciones es una empresa de ingeniería especializada en la integración global de sistemas de comunicación, que centra su actividad en el diseño, instalación y…” Source: RevenueBase Database · checked Sep 30, 2026
15	Instelca	Indirect evidence	Málaga, SpainHQ checked Sep 30, 2026	201-500	118 contacts →
	Indirect 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 30, 2026
16	Smartel España	Indirect evidence	Erandio, SpainHQ checked Sep 30, 2026	51-200	110 contacts →
	Indirect 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 30, 2026
17	Einzelnet	Indirect evidence	Madrid, SpainHQ checked Sep 30, 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 30, 2026
18	Nokia Tecss	Indirect evidence	Alcobendas, SpainHQ checked Sep 30, 2026	201-500	104 contacts →
	Indirect evidence “NOKIA TECSS somos una empresa de servicios del sector de las Telecomunicaciones.” Source: RevenueBase Database · checked Sep 30, 2026
19	Cableven	Indirect evidence	Málaga, SpainHQ checked Sep 30, 2026	501-1,000	103 contacts →
	Indirect evidence “Empresa cualificada y especializada en la instalación y mantenimiento de redes y equipos de telecomunicaciones.” Source: RevenueBase Database · checked Sep 30, 2026
20	MDTEL	Partial evidence	Madrid, SpainHQ checked Sep 30, 2026	51-200	93 contacts →
	Partial evidence “mdtel is a manufacturer and integrator of corporate telecommunications solutions for business environments with more than 20 years of experience.” Source: RevenueBase Database · checked Sep 30, 2026
21	Emurtel	Indirect evidence	El Palmar (murcia), SpainHQ checked Sep 30, 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 30, 2026
22	Setting Consultoria EN Tecnologías DE LA Información	Indirect evidence	Barcelona, SpainHQ checked Sep 30, 2026	51-200	91 contacts →
	Indirect evidence “SETTING Consultoría en Tecnologías de la Información es una empresa de consultoría, aplicación y gestión de las Tecnologías de la Información y Comunicación (T.I.C.).” Source: RevenueBase Database · checked Sep 30, 2026
23	Indigo Grup	Indirect evidence	El Prat De Llobregat, SpainHQ checked Sep 30, 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 30, 2026
24	EACOM	Indirect evidence	Barcelona, SpainHQ checked Sep 30, 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 30, 2026
25	Telecomunicación DE Levante SL	Indirect evidence	Alicante, SpainHQ checked Sep 30, 2026	1,001-5,000	90 contacts →
	Indirect evidence “Telecomunicación de Levante (Teleco) inició su actividad hace más de tres décadas con Telefónica como principal cliente.” Source: RevenueBase Database · checked Sep 30, 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: telecommunications consultants. 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 telecommunications consultants.
Partial evidence: Its own public description names part of telecommunications consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecommunications consultants. 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 1,124 telecommunications consultants based in Spain

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Telecommunications consultants based in Spain at a glance

As of Sep 30, 2026

10.3%Verified-email coverage

14.8Average contacts per company

1-10Median size (employees)

19.8%Largest-city concentration · Madrid

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

573

11-50

399

51-200

108

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 1,124 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 telecommunications consultants, 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 “telecommunications consultants”. 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 telecommunications consultants), 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 telecommunications consultants, 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, 1,708 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 30, 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.

Telecommunications consultants 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 telecommunications consultants, 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 telecommunications consultants are there based in Spain?

RevenueBase identified 1,124 telecommunications consultants 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 telecommunications consultants?

Madrid leads with 222 headquartered companies, followed by Barcelona (93) and Malaga (32).

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 1,708 verified decision-maker contacts tracked across these 1,124 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 30, 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.