Company lists · Data refreshed September 2026
Top 25 Telecom engineering contractors based in Spain
RevenueBase identified 550 company matches for telecom engineering contractors associated with Spain as of September 2026 and tracks 11,244 professional contacts across them, including 893 with verified work emails. Madrid is the largest hub.
This list covers company matches for telecom engineering contractors 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 19, 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.
The 25 largest telecom engineering contractors based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,207 contacts → | ||||
Exact match “En Zener crecemos acelerando el crecimiento de nuestros clientes.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 739 contacts → | ||||
Exact match “NUNSYS es una empresa especializada en la Implantación de Soluciones Integrales de Tecnología.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 701 contacts → | ||||
Exact match “OFG is an international company with more than 20 years of experience in the telecommunications sector.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 684 contacts → | ||||
Exact match “Empresa especializada en la ingenieria, desarrollo, construccion, instalación, y puesta en marcha de instalaciones de telecomunicaciones, electricidad, señalización, redes de…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 628 contacts → | ||||
Exact match “Insyte Instalaciones inicia su actividad en 1990 como empresa instaladora en el sector eléctrico y de telecomunicaciones.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 455 contacts → | ||||
Exact match “Circet España, empresa líder del sector de las telecomunicaciones en España, con implantación a nivel Nacional.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 181 contacts → | ||||
Exact match “Somos una empresa de Servicios Técnicos cuyo campo de actuación abarca todas las fases de las instalaciones de edificios, desde la concepción y diseño hasta el mantenimiento y…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 150 contacts → | ||||
Exact match “Somos una marca global de Ingeniería en integración de soluciones de Telecomunicaciones y Sistemas IT con más de 35 años de experiencia.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 139 contacts → | ||||
Exact match “Inet es una empresa del grupo AXIS CORPORATE especializada en procesos de despliegue y mantenimiento de infraestructuras tecnológicas y comunicaciones para empresas.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 126 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 118 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 110 contacts → | ||||
Exact match “Smart Telecom Consulting, empresa de ingeniería especializada en el campo de la telefonia móvil ofreciendo soluciones integrales a nuestros clientes desde el año 2004.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 103 contacts → | ||||
Exact match “Empresa cualificada y especializada en la instalación y mantenimiento de redes y equipos de telecomunicaciones.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 96 contacts → | ||||
Exact match “ALUVISA es una empresa orientada al servicio, altamente especializada no solo en la ejecución de proyectos de instalación y mantenimiento de equipos tradicionales sino también en…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 92 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 88 contacts → | ||||
Exact match “Coyser S.A.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 88 contacts → | ||||
Exact match “Apostando por la innovación y soñando con el desarrollo de una consolidada red de Telecomunicaciones en España, nace Tower Consultores en 1996.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 86 contacts → | ||||
Exact match “SITER INGENIERÍA DE INFRAESTRUCTURAS es una compañía con más de 25 años de historia, que opera dando soporte a operadores y empresas relacionadas con el desarrollo de…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 85 contacts → | ||||
Exact match “Electroinnova instalaciones y mantenimientos S.L es una empresa asturiana con una clara voación de expansión internacional que nace con el objetivo de ofrecer y solucionar…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 82 contacts → | ||||
Exact match “SORTIS: Líder en Soluciones Integrales de Telecomunicaciones y TI desde 2005.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 81 contacts → | ||||
Exact match “Empresa dedicada a la ejecución de proyectos de ingenieria industrial, telecomunicaciones y civil.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 78 contacts → | ||||
Exact match “CIE Tecnologías, es hoy una empresa establecida en el sector de las telecomunicaciones y desarrolla su actividad centrándose en el diseño e implementación de tecnologías e…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 57 contacts → | ||||
Exact match “IBERTEL es una sociedad independiente que desarrolla proyectos de telecomunicaciones, energía, medioambientales, de instalaciones, de estructuras.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 50 contacts → | ||||
Exact match “ISP Grup nació en con la visión de que las telecomunicaciones serían el futuro.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 45 contacts → | ||||
Exact match “Ingeniería, Consultoría e Instalación de Telecomunicaciones Trabajamos a nivel local, regional y nacional tanto para pequeñas y medianas empresas como para grandes organizaciones.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “telecom engineering contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 550 telecom engineering contractors based in Spain
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Telecom engineering contractors based in Spain at a glance
As of Sep 19, 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 550 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 “telecom engineering contractors” 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 893 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 19, 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 “telecom engineering contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many telecom engineering contractors are there based in Spain?
RevenueBase identified 550 company matches for telecom engineering contractors 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?
ZENER tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most telecom engineering contractors?
Madrid leads with 91 company records, followed by Barcelona (36) and Malaga (15).
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 893 professional contacts with verified work emails tracked across these 550 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 550 telecom engineering contractors based in Spain. Start with a free account, no credit card.
Download this list →Related lists
Telecom engineering contractors by geography
- Telecom engineering contractors based in Brisbane, Australia
- Telecom engineering contractors based in Melbourne, Australia
- Telecom engineering contractors based in Perth, Australia
- Telecom engineering contractors based in Sydney, Australia
- Telecom engineering contractors based in Belo Horizonte, Brazil
- Telecom engineering contractors based in Curitiba, Brazil
- Telecom engineering contractors based in Rio De Janeiro, Brazil
- Telecom engineering contractors based in Sao Paulo, Brazil
- Telecom engineering contractors based in Mumbai, India
- Telecom engineering contractors based in New Delhi, India
- Telecom engineering contractors based in Dallas, United States
- Telecom engineering contractors based in Houston, United States
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.
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Company intelligence · public preview
Top 25 telecom engineering contractors based in Spain
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 550 matching company records for telecom engineering contractors based in Spain, with 11,244 tracked contacts and 893 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 telecom engineering contractors based in Spain
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  ZENERzener.esHQ: Madrid, SpainReported employees: 5,001-10,000 | Madrid, Spain | 5,001-10,000 | Exact match | 1,207 contacts → |
“En Zener crecemos acelerando el crecimiento de nuestros clientes.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Nunsysnunsys.comHQ: Paterna, SpainReported employees: 1,001-5,000 | Paterna, Spain | 1,001-5,000 | Exact match | 739 contacts → |
“NUNSYS es una empresa especializada en la Implantación de Soluciones Integrales de Tecnología.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  OFGofg.esHQ: Córdoba, SpainReported employees: 1,001-5,000 | Córdoba, Spain | 1,001-5,000 | Exact match | 701 contacts → |
“OFG is an international company with more than 20 years of experience in the telecommunications sector.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Comfica Soluciones Integrales S.Lcomfica.comHQ: Fuenlabrada, SpainReported employees: 201-500 | Fuenlabrada, Spain | 201-500 | Exact match | 684 contacts → |
“Empresa especializada en la ingenieria, desarrollo, construccion, instalación, y puesta en marcha de instalaciones de telecomunicaciones, electricidad, señalización, redes de…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Insyte Instalacionesinsyteinstalaciones.esHQ: Getafe, SpainReported employees: 1,001-5,000 | Getafe, Spain | 1,001-5,000 | Exact match | 628 contacts → |
“Insyte Instalaciones inicia su actividad en 1990 como empresa instaladora en el sector eléctrico y de telecomunicaciones.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Circet Españacircet.esHQ: Seville, SpainReported employees: 1,001-5,000 | Seville, Spain | 1,001-5,000 | Exact match | 455 contacts → |
“Circet España, empresa líder del sector de las telecomunicaciones en España, con implantación a nivel Nacional.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Simalgasimalga.comHQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 181 contacts → |
“Somos una empresa de Servicios Técnicos cuyo campo de actuación abarca todas las fases de las instalaciones de edificios, desde la concepción y diseño hasta el mantenimiento y…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Powernetpowernet.esHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 150 contacts → |
“Somos una marca global de Ingeniería en integración de soluciones de Telecomunicaciones y Sistemas IT con más de 35 años de experiencia.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Inet Smart ITCinet-itservices.comHQ: Cornellà De Llobregat, SpainReported employees: 201-500 | Cornellà De Llobregat, Spain | 201-500 | Exact match | 139 contacts → |
“Inet es una empresa del grupo AXIS CORPORATE especializada en procesos de despliegue y mantenimiento de infraestructuras tecnológicas y comunicaciones para empresas.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Ambar Telecomunicacionesambar.esHQ: Santander, SpainReported employees: 201-500 | Santander, Spain | 201-500 | Exact match | 126 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Instelcainstelca.comHQ: Málaga, SpainReported employees: 201-500 | Málaga, Spain | 201-500 | Exact match | 118 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Smartel Españasmartel.esHQ: Erandio, SpainReported employees: 51-200 | Erandio, Spain | 51-200 | Exact match | 110 contacts → |
“Smart Telecom Consulting, empresa de ingeniería especializada en el campo de la telefonia móvil ofreciendo soluciones integrales a nuestros clientes desde el año 2004.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Cablevencableven.esHQ: Málaga, SpainReported employees: 501-1,000 | Málaga, Spain | 501-1,000 | Exact match | 103 contacts → |
“Empresa cualificada y especializada en la instalación y mantenimiento de redes y equipos de telecomunicaciones.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Alumbrados Viarios S.A, Aluvisaaluvisagrupo.comHQ: Cornella De Llobregat, SpainReported employees: 51-200 | Cornella De Llobregat, Spain | 51-200 | Exact match | 96 contacts → |
“ALUVISA es una empresa orientada al servicio, altamente especializada no solo en la ejecución de proyectos de instalación y mantenimiento de equipos tradicionales sino también en…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Emurtelemurtel.esHQ: El Palmar (murcia), SpainReported employees: 51-200 | El Palmar (murcia), Spain | 51-200 | Exact match | 92 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Coyser SAcoyser.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 88 contacts → |
“Coyser S.A.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  TOWERtowerconsultores.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 88 contacts → |
“Apostando por la innovación y soñando con el desarrollo de una consolidada red de Telecomunicaciones en España, nace Tower Consultores en 1996.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Siter Ingeniería DE Infraestructurassiter2000.comHQ: Bilbao, SpainReported employees: 51-200 | Bilbao, Spain | 51-200 | Exact match | 86 contacts → |
“SITER INGENIERÍA DE INFRAESTRUCTURAS es una compañía con más de 25 años de historia, que opera dando soporte a operadores y empresas relacionadas con el desarrollo de…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Iquordiquord.eu HQ: Aviles, SpainReported employees: 51-200 | Aviles, Spain | 51-200 | Exact match | 85 contacts → |
“Electroinnova instalaciones y mantenimientos S.L es una empresa asturiana con una clara voación de expansión internacional que nace con el objetivo de ofrecer y solucionar…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Sortissortis.esHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 82 contacts → |
“SORTIS: Líder en Soluciones Integrales de Telecomunicaciones y TI desde 2005.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  ISTEMistem.esHQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 81 contacts → |
“Empresa dedicada a la ejecución de proyectos de ingenieria industrial, telecomunicaciones y civil.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  CIE Tecnologíascietecnologias.esHQ: Arteixo, SpainReported employees: 51-200 | Arteixo, Spain | 51-200 | Exact match | 78 contacts → |
“CIE Tecnologías, es hoy una empresa establecida en el sector de las telecomunicaciones y desarrolla su actividad centrándose en el diseño e implementación de tecnologías e…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Ibertel Engineering Servicesibertel-es.esHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 57 contacts → |
“IBERTEL es una sociedad independiente que desarrolla proyectos de telecomunicaciones, energía, medioambientales, de instalaciones, de estructuras.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  ISP Grupispgrup.catHQ: Les Franqueses Del Vallés, SpainReported employees: 201-500 | Les Franqueses Del Vallés, Spain | 201-500 | Exact match | 50 contacts → |
“ISP Grup nació en con la visión de que las telecomunicaciones serían el futuro.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Gotor Comunicacionesgotor.comHQ: Zaragoza, SpainReported employees: 51-200 | Zaragoza, Spain | 51-200 | Exact match | 45 contacts → |
“Ingeniería, Consultoría e Instalación de Telecomunicaciones Trabajamos a nivel local, regional y nacional tanto para pequeñas y medianas empresas como para grandes organizaciones.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 550 company matches
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Telecom engineering contractors: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
544 records in the displayed employee bands.
6 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 550 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for telecom engineering contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many telecom engineering contractors did RevenueBase find based in Spain?
The saved snapshot records 550 matching company records, 11,244 tracked contacts and 893 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Telecom engineering contractors by geography
- Telecom engineering contractors based in Brisbane, Australia
- Telecom engineering contractors based in Melbourne, Australia
- Telecom engineering contractors based in Perth, Australia
- Telecom engineering contractors based in Sydney, Australia
- Telecom engineering contractors based in Belo Horizonte, Brazil
- Telecom engineering contractors based in Curitiba, Brazil
- Telecom engineering contractors based in Rio De Janeiro, Brazil
- Telecom engineering contractors based in Sao Paulo, Brazil
- Telecom engineering contractors based in Mumbai, India
- Telecom engineering contractors based in New Delhi, India
- Telecom engineering contractors based in Dallas, United States
- Telecom engineering contractors based in Houston, United States
Cite this list
RevenueBase Data Team. Top 25 telecom engineering contractors based in Spain. Snapshot: September 19, 2026. https://revenuebase.ai/companies/telecom-engineering-contractors/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Telecom engineering contractors based in Brisbane, Australia
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- Telecom engineering contractors based in Perth, Australia
- Telecom engineering contractors based in Sydney, Australia
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- Telecom engineering contractors based in Curitiba, Brazil
Company intelligence · public preview
Top 25 telecom engineering contractors based in Spain
RevenueBase records 550 matching company records for telecom engineering contractors based in Spain, with 11,244 tracked contacts and 893 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 telecom engineering contractors based in Spain
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | ZENERzener.es HQ: Madrid, SpainReported employees: 5,001-10,000 | Madrid, Spain | 5,001-10,000 | Exact match | 1,207 contacts → |
“En Zener crecemos acelerando el crecimiento de nuestros clientes.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Nunsysnunsys.com HQ: Paterna, SpainReported employees: 1,001-5,000 | Paterna, Spain | 1,001-5,000 | Exact match | 739 contacts → |
“NUNSYS es una empresa especializada en la Implantación de Soluciones Integrales de Tecnología.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | OFGofg.es HQ: Córdoba, SpainReported employees: 1,001-5,000 | Córdoba, Spain | 1,001-5,000 | Exact match | 701 contacts → |
“OFG is an international company with more than 20 years of experience in the telecommunications sector.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Comfica Soluciones Integrales S.Lcomfica.com HQ: Fuenlabrada, SpainReported employees: 201-500 | Fuenlabrada, Spain | 201-500 | Exact match | 684 contacts → |
“Empresa especializada en la ingenieria, desarrollo, construccion, instalación, y puesta en marcha de instalaciones de telecomunicaciones, electricidad, señalización, redes de…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Insyte Instalacionesinsyteinstalaciones.es HQ: Getafe, SpainReported employees: 1,001-5,000 | Getafe, Spain | 1,001-5,000 | Exact match | 628 contacts → |
“Insyte Instalaciones inicia su actividad en 1990 como empresa instaladora en el sector eléctrico y de telecomunicaciones.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Circet Españacircet.es HQ: Seville, SpainReported employees: 1,001-5,000 | Seville, Spain | 1,001-5,000 | Exact match | 455 contacts → |
“Circet España, empresa líder del sector de las telecomunicaciones en España, con implantación a nivel Nacional.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Simalgasimalga.com HQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 181 contacts → |
“Somos una empresa de Servicios Técnicos cuyo campo de actuación abarca todas las fases de las instalaciones de edificios, desde la concepción y diseño hasta el mantenimiento y…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Powernetpowernet.es HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 150 contacts → |
“Somos una marca global de Ingeniería en integración de soluciones de Telecomunicaciones y Sistemas IT con más de 35 años de experiencia.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Inet Smart ITCinet-itservices.com HQ: Cornellà De Llobregat, SpainReported employees: 201-500 | Cornellà De Llobregat, Spain | 201-500 | Exact match | 139 contacts → |
“Inet es una empresa del grupo AXIS CORPORATE especializada en procesos de despliegue y mantenimiento de infraestructuras tecnológicas y comunicaciones para empresas.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Ambar Telecomunicacionesambar.es HQ: Santander, SpainReported employees: 201-500 | Santander, Spain | 201-500 | Exact match | 126 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Instelcainstelca.com HQ: Málaga, SpainReported employees: 201-500 | Málaga, Spain | 201-500 | Exact match | 118 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Smartel Españasmartel.es HQ: Erandio, SpainReported employees: 51-200 | Erandio, Spain | 51-200 | Exact match | 110 contacts → |
“Smart Telecom Consulting, empresa de ingeniería especializada en el campo de la telefonia móvil ofreciendo soluciones integrales a nuestros clientes desde el año 2004.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Cablevencableven.es HQ: Málaga, SpainReported employees: 501-1,000 | Málaga, Spain | 501-1,000 | Exact match | 103 contacts → |
“Empresa cualificada y especializada en la instalación y mantenimiento de redes y equipos de telecomunicaciones.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Alumbrados Viarios S.A, Aluvisaaluvisagrupo.com HQ: Cornella De Llobregat, SpainReported employees: 51-200 | Cornella De Llobregat, Spain | 51-200 | Exact match | 96 contacts → |
“ALUVISA es una empresa orientada al servicio, altamente especializada no solo en la ejecución de proyectos de instalación y mantenimiento de equipos tradicionales sino también en…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Emurtelemurtel.es HQ: El Palmar (murcia), SpainReported employees: 51-200 | El Palmar (murcia), Spain | 51-200 | Exact match | 92 contacts → |
“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…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Coyser SAcoyser.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 88 contacts → |
“Coyser S.A.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | TOWERtowerconsultores.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 88 contacts → |
“Apostando por la innovación y soñando con el desarrollo de una consolidada red de Telecomunicaciones en España, nace Tower Consultores en 1996.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Siter Ingeniería DE Infraestructurassiter2000.com HQ: Bilbao, SpainReported employees: 51-200 | Bilbao, Spain | 51-200 | Exact match | 86 contacts → |
“SITER INGENIERÍA DE INFRAESTRUCTURAS es una compañía con más de 25 años de historia, que opera dando soporte a operadores y empresas relacionadas con el desarrollo de…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Iquordiquord.eu HQ: Aviles, SpainReported employees: 51-200 | Aviles, Spain | 51-200 | Exact match | 85 contacts → |
“Electroinnova instalaciones y mantenimientos S.L es una empresa asturiana con una clara voación de expansión internacional que nace con el objetivo de ofrecer y solucionar…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Sortissortis.es HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 82 contacts → |
“SORTIS: Líder en Soluciones Integrales de Telecomunicaciones y TI desde 2005.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | ISTEMistem.es HQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 81 contacts → |
“Empresa dedicada a la ejecución de proyectos de ingenieria industrial, telecomunicaciones y civil.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | CIE Tecnologíascietecnologias.es HQ: Arteixo, SpainReported employees: 51-200 | Arteixo, Spain | 51-200 | Exact match | 78 contacts → |
“CIE Tecnologías, es hoy una empresa establecida en el sector de las telecomunicaciones y desarrolla su actividad centrándose en el diseño e implementación de tecnologías e…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Ibertel Engineering Servicesibertel-es.es HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 57 contacts → |
“IBERTEL es una sociedad independiente que desarrolla proyectos de telecomunicaciones, energía, medioambientales, de instalaciones, de estructuras.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | ISP Grupispgrup.cat HQ: Les Franqueses Del Vallés, SpainReported employees: 201-500 | Les Franqueses Del Vallés, Spain | 201-500 | Exact match | 50 contacts → |
“ISP Grup nació en con la visión de que las telecomunicaciones serían el futuro.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Gotor Comunicacionesgotor.com HQ: Zaragoza, SpainReported employees: 51-200 | Zaragoza, Spain | 51-200 | Exact match | 45 contacts → |
“Ingeniería, Consultoría e Instalación de Telecomunicaciones Trabajamos a nivel local, regional y nacional tanto para pequeñas y medianas empresas como para grandes organizaciones.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 550 company matches
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Telecom engineering contractors: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
544 records in the displayed employee bands.
6 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 550 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for telecom engineering contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many telecom engineering contractors did RevenueBase find based in Spain?
The saved snapshot records 550 matching company records, 11,244 tracked contacts and 893 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 telecom engineering contractors based in Spain. Snapshot: September 19, 2026. https://revenuebase.ai/companies/telecom-engineering-contractors/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Telecom engineering contractors based in Brisbane, Australia
- Telecom engineering contractors based in Melbourne, Australia
- Telecom engineering contractors based in Perth, Australia
- Telecom engineering contractors based in Sydney, Australia
- Telecom engineering contractors based in Belo Horizonte, Brazil
- Telecom engineering contractors based in Curitiba, Brazil