Company lists · Data refreshed November 2026

Top 13 Telecommunications sub-assemblies suppliers based in Spain

RevenueBase identified 40 company matches for telecommunications sub-assemblies suppliers associated with Spain as of November 2026 and tracks 628 professional contacts across them, including 61 with verified work emails. Madrid is the largest hub.

This list covers company matches for telecommunications sub-assemblies suppliers 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 November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
40Companies
628Contacts tracked
61Verified emails
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The 13 largest telecommunications sub-assemblies suppliers based in Spain

Ranked by team size
Top 13 of 40 company matches for telecommunications sub-assemblies suppliers based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchVillaviciosa De Odón, SpainHQ recorded Nov 6, 2026201-500120 contacts →

Exact match

“We invent, develop and manufacture passive elements for telecommunications networks.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchZaragoza, SpainHQ recorded Nov 6, 2026201-500107 contacts →

Exact match

“Cablescom es una de las principales compañías europeas dedicadas al diseño, fabricación y comercialización de cables de telecomunicaciones, señalización y fibra óptica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSan Sebastián De Los Reyes, SpainHQ recorded Nov 6, 2026201-50084 contacts →

Exact match

“Your Network is Our Business DeltaComGroup is a global supplier of top quality telecommunications systems, components and services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchPaterna, SpainHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“ESB SISTEMAS ESPAÑA, S.L.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchVilladangos Del Páramo, SpainHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Kyo Electric es una empresa dedicada al diseño, fabricación, distribución y alquiler de equipos especializados para empresas instaladoras de telecomunicaciones y operadoras de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20011 contacts →

Exact match

“Tel Telecomunicaciones es una de las empresas más importantes y cualificadas para prestar servicios en el campo de las telecomunicaciones.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSeville, SpainHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Mayorista de equipos electrónicos para el automóvil y equipos de telecomunicación.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLa Muela, SpainHQ recorded Nov 6, 202651-2009 contacts →

Exact match

“TELNET Fiber Optic S.L.U.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchIrún, SpainHQ recorded Nov 6, 202611-507 contacts →

Exact match

“BSM es una compañía creada en 1.995 y dedicada a la ingeniería de equipos informáticos, con 2 actividades principales: una dedicada al ensamblaje de PC's, Servidores, Racks, etc…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSondika, SpainHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Después de casi 25 años seguimos en la vanguardia de las nuevas tecnologías, consolidándonos como una de las empresas pioneras dentro del sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNumancia De La Sagra, SpainHQ recorded Nov 6, 2026201-5004 contacts →

Exact match

“Compañía especializada en ofrecer soluciones tecnológicas a todas aquellas empresas del sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchTerrassa, SpainHQ recorded Nov 6, 20261-103 contacts →

Exact match

“NETASELCOM SL, distribuye equipos electrónicos y de telecomunicaciones y sus componentes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchDenia, SpainHQ recorded Nov 6, 202611-503 contacts →

Exact match

“We are importers and exporters of telecommunications equipment for professionals: ISP / Networking / Security / Terrestrial and satellite TV / access control / Telephony and much…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 13 of 40 telecommunications sub-assemblies suppliers based in Spain

See the full list, filter by size, metro and specialty, and access 61 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecommunications sub-assemblies suppliers based in Spain at a glance

As of Nov 6, 2026
9.7%Verified-email coverage
15.7Average contacts per company
11-50Median size (employees)
17.5%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
19
51-200
3
201-500
5

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 40 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 “telecommunications sub-assemblies suppliers” 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 61 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 November 6, 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 “telecommunications sub-assemblies suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecommunications sub-assemblies suppliers are there based in Spain?

RevenueBase identified 40 company matches for telecommunications sub-assemblies suppliers associated with Spain as of November 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?

Electroson Telecomunicación S.A tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telecommunications sub-assemblies suppliers?

Madrid leads with 7 company records, followed by Barcelona (5) and Alcala De Guadaira (1).

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 61 professional contacts with verified work emails tracked across these 40 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 November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.