Company lists · Data refreshed September 2026
Top 25 Fiber optic companies based in Spain
RevenueBase identified 119 company matches for fiber optic companies associated with Spain as of September 2026 and tracks 2,833 professional contacts across them, including 369 with verified work emails. Madrid is the largest hub.
This list covers company matches for fiber optic companies 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 15, 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 fiber optic companies based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,182 contacts → | ||||
Exact match “UFINET is a Latin American carrier of carriers providing high-quality solutions in the wholesale telecom market.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 2 | 298 contacts → | ||||
Exact match “Adamo is a telecom operator with Swedish origin operating in Spain since 2007.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 3 | 157 contacts → | ||||
Exact match “lyntia is the leading wholesale optic fibre operator in Spain and Portugal, providing robust, flexible and sustainable connectivity solutions for the Telco and Cloud sector.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 4 | 132 contacts → | ||||
Exact match “Cableworld es la compañía de servicios de telecomunicaciones por fibra óptica líder en en sus zonas de influencia, en la que ofrecemos de manera integrada servicios de Internet…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 5 | 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 15, 2026 · View company records in RevenueBase | |||||
| 6 | 92 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 · Sep 15, 2026 · View company records in RevenueBase | |||||
| 7 | 60 contacts → | ||||
Exact match “Somos la Fibra Óptica que te conecta desde la España rural” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 8 | 49 contacts → | ||||
Exact match “Lightmax SL empresa fundada en 2007 especializada en la fabricación y suministro de productos para redes pasivas de fibra óptica.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 9 | 41 contacts → | ||||
Exact match “Silbö es la nueva telco que solo te contará cosas que suenan bien.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 10 | 40 contacts → | ||||
Exact match “OPTRAL is a Spanish leader company, founded in 1988, engaged in fibre optic cable design, manufacture and worldwide known companies in the Telecom, Oil & Gas, Industry and…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 11 | 37 contacts → | ||||
Exact match “TDI Sistemas es una compañía de capital privado íntegramente español.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 12 | 37 contacts → | ||||
Exact match “MODI, S.L (Mantenimiento y Operación de Infraestructuras, S.L), está formada por un grupo profesional con más de 25 años de experiencia en el diseño y construcción de redes de…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 13 | 30 contacts → | ||||
Exact match “Onivia es el operador mayorista de fibra óptica independiente y neutral, que está transformando el mercado de las telecomunicaciones en España.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 14 | 26 contacts → | ||||
Exact match “Somos un operador de red que ofrece servicios mayoristas de acceso FTTH y otros servicios de conectividad sobre tecnología de fibra.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 15 | 21 contacts → | ||||
Exact match “Keynet nace en 2014 como empresa y marca como resultado de nuestra inquietud por ofrecer al mercado la más amplia línea de productos pasivos para redes de cable estructurado y…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 16 | 17 contacts → | ||||
Exact match “Fibercom ofrece productos y servicios de Fibra óptica en el ámbito de las Telecomunicaciones, cubriendo la totalidad de actividades involucradas en el proceso: ingeniería de redes…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 17 | 16 contacts → | ||||
Exact match “UPTECH SENSING SL is a company that manufactures monitoring systems based on fiber optic solutions providing reliable real-time monitoring for assets in the industry.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 18 | 13 contacts → | ||||
Exact match “Ingeniería comprometida con la innovación, con amplia experiencia en el ámbito industrial y de las telecomunicaciones, así como en el desarrollo de software de integración.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 19 | 13 contacts → | ||||
Exact match “KEYFIBRE (KeyFibre Network Components, S.L.) is a company within the KeyInnovation group based in Valencia, Spain.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 20 | 13 contacts → | ||||
Exact match “Expertos en conexiones, soluciones y productos en fibra óptica, desde 1992.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 21 | 11 contacts → | ||||
Exact match “Since 1927 the cable production plant in Maliaño – Cantabria has been producing both copper and optical fiber cables for the most relevant telecom and railways operators worldwide.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 22 | 11 contacts → | ||||
Exact match “Somos una empresa dedicada a brindar soluciones para el despliegue y mantenimiento de infraestructura de redes de telecomunicaciones, especialmente las que requieren del uso de…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 23 | 10 contacts → | ||||
Exact match “Merocom Solutions is a Spanish company with a subsidiary in China, founded in 2018.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 24 | 10 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 · Sep 15, 2026 · View company records in RevenueBase | |||||
| 25 | 9 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 15, 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 “fiber optic companies”. 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 119 fiber optic companies based in Spain
See the full list, filter by size, metro and specialty, and access 369 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Fiber optic companies based in Spain at a glance
As of Sep 15, 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 119 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 “fiber optic companies” 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 369 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 15, 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 “fiber optic companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many fiber optic companies are there based in Spain?
RevenueBase identified 119 company matches for fiber optic companies 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?
Ufinet tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most fiber optic companies?
Madrid leads with 16 company records, followed by Murcia (6) and Barcelona (5).
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 369 professional contacts with verified work emails tracked across these 119 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 15, 2026.
Ready to reach these companies? Verified emails and direct dials for all 119 fiber optic companies based in Spain. Start with a free account, no credit card.
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Fiber optic companies by geography
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- Fiber optic companies based in Brazil
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- Fiber optic companies based in Chile
- Fiber optic companies based in Finland
- Fiber optic companies based in France
- Fiber optic companies based in Germany
- Fiber optic companies based in India
- Fiber optic companies based in Indonesia
Browse the directory
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.
More company lists
Company intelligence · public preview
Top 25 fiber optic companies 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 119 matching company records for fiber optic companies based in Spain, with 2,833 tracked contacts and 369 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 15, 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 fiber optic companies 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 | Ufinetufinet.com HQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 1,182 contacts → |
“UFINET is a Latin American carrier of carriers providing high-quality solutions in the wholesale telecom market.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Adamo Telecom Iberia S.A.Uadamo.esHQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 298 contacts → |
“Adamo is a telecom operator with Swedish origin operating in Spain since 2007.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Lyntialyntia.com HQ: Alcobendas, SpainReported employees: 201-500 | Alcobendas, Spain | 201-500 | Exact match | 157 contacts → |
“lyntia is the leading wholesale optic fibre operator in Spain and Portugal, providing robust, flexible and sustainable connectivity solutions for the Telco and Cloud sector.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Cableworldcableworld.esHQ: Alicante, SpainReported employees: 201-500 | Alicante, Spain | 201-500 | Exact match | 132 contacts → |
“Cableworld es la compañía de servicios de telecomunicaciones por fibra óptica líder en en sus zonas de influencia, en la que ofrecemos de manera integrada servicios de Internet…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  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 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Cablescomcablescom.comHQ: Zaragoza, SpainReported employees: 201-500 | Zaragoza, Spain | 201-500 | Exact match | 92 contacts → |
“Cablescom es una de las principales compañías europeas dedicadas al diseño, fabricación y comercialización de cables de telecomunicaciones, señalización y fibra óptica.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Fibritelfibritel.com HQ: Illescas, SpainReported employees: 51-200 | Illescas, Spain | 51-200 | Exact match | 60 contacts → |
“Somos la Fibra Óptica que te conecta desde la España rural” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Lightmax SLlightmax.com HQ: Irun, SpainReported employees: 51-200 | Irun, Spain | 51-200 | Exact match | 49 contacts → |
“Lightmax SL empresa fundada en 2007 especializada en la fabricación y suministro de productos para redes pasivas de fibra óptica.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Silbö Telecomsilbotelecom.comHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 41 contacts → |
“Silbö es la nueva telco que solo te contará cosas que suenan bien.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Optral S.Aoptral.com HQ: Alcobendas, SpainReported employees: 51-200 | Alcobendas, Spain | 51-200 | Exact match | 40 contacts → |
“OPTRAL is a Spanish leader company, founded in 1988, engaged in fibre optic cable design, manufacture and worldwide known companies in the Telecom, Oil & Gas, Industry and…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  TDI Sistemas S.Ltdi-sistemas.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 37 contacts → |
“TDI Sistemas es una compañía de capital privado íntegramente español.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Modi SLmodisl.com HQ: Montcada I Reixac, SpainReported employees: 11-50 | Montcada I Reixac, Spain | 11-50 | Exact match | 37 contacts → |
“MODI, S.L (Mantenimiento y Operación de Infraestructuras, S.L), está formada por un grupo profesional con más de 25 años de experiencia en el diseño y construcción de redes de…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Oniviaonivia.net HQ: Pozuelo De Alarcón, SpainReported employees: 11-50 | Pozuelo De Alarcón, Spain | 11-50 | Exact match | 30 contacts → |
“Onivia es el operador mayorista de fibra óptica independiente y neutral, que está transformando el mercado de las telecomunicaciones en España.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Bluevíabluevia.esHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 26 contacts → |
“Somos un operador de red que ofrece servicios mayoristas de acceso FTTH y otros servicios de conectividad sobre tecnología de fibra.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Keynet Systemskeynet-systems.com HQ: Zaragoza, SpainReported employees: 11-50 | Zaragoza, Spain | 11-50 | Exact match | 21 contacts → |
“Keynet nace en 2014 como empresa y marca como resultado de nuestra inquietud por ofrecer al mercado la más amplia línea de productos pasivos para redes de cable estructurado y…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Fibercom SLfibercom.es HQ: Zaragoza, SpainReported employees: 11-50 | Zaragoza, Spain | 11-50 | Exact match | 17 contacts → |
“Fibercom ofrece productos y servicios de Fibra óptica en el ámbito de las Telecomunicaciones, cubriendo la totalidad de actividades involucradas en el proceso: ingeniería de redes…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Uptech Sensinguptech-sensing.com HQ: Mutilva, SpainReported employees: 1-10 | Mutilva, Spain | 1-10 | Exact match | 16 contacts → |
“UPTECH SENSING SL is a company that manufactures monitoring systems based on fiber optic solutions providing reliable real-time monitoring for assets in the industry.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Emser Innovaemser.esHQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 13 contacts → |
“Ingeniería comprometida con la innovación, con amplia experiencia en el ámbito industrial y de las telecomunicaciones, así como en el desarrollo de software de integración.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Keyfibre Network Components S.Lkeyfibre.comHQ: Ribarroja, SpainReported employees: 11-50 | Ribarroja, Spain | 11-50 | Exact match | 13 contacts → |
“KEYFIBRE (KeyFibre Network Components, S.L.) is a company within the KeyInnovation group based in Valencia, Spain.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Fiberco Instrumentación Industrial SLfiberco.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 13 contacts → |
“Expertos en conexiones, soluciones y productos en fibra óptica, desde 1992.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Standard Cableteam Spain S.Lstandardcableteam.com HQ: Maliaño, SpainReported employees: 51-200 | Maliaño, Spain | 51-200 | Exact match | 11 contacts → |
“Since 1927 the cable production plant in Maliaño – Cantabria has been producing both copper and optical fiber cables for the most relevant telecom and railways operators worldwide.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Digatel Telecomunicacionesdigateltelecom.comHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 11 contacts → |
“Somos una empresa dedicada a brindar soluciones para el despliegue y mantenimiento de infraestructura de redes de telecomunicaciones, especialmente las que requieren del uso de…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Merocom Solutionsmerocomsolutions.com HQ: Las Rozas De Madrid, SpainReported employees: 11-50 | Las Rozas De Madrid, Spain | 11-50 | Exact match | 10 contacts → |
“Merocom Solutions is a Spanish company with a subsidiary in China, founded in 2018.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | KYO Electrickyoelectric.es HQ: Villadangos Del Páramo, SpainReported employees: 11-50 | Villadangos Del Páramo, Spain | 11-50 | Exact match | 10 contacts → |
“Kyo Electric es una empresa dedicada al diseño, fabricación, distribución y alquiler de equipos especializados para empresas instaladoras de telecomunicaciones y operadoras de…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Einesa Cable SLeinesacable.com HQ: Lleida, SpainReported employees: 11-50 | Lleida, Spain | 11-50 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 119 company matches
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Fiber optic companies: dataset insights
September 15, 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
119 records in the displayed employee bands.
0 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 119 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 15, 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 fiber optic companies?
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 fiber optic companies did RevenueBase find based in Spain?
The saved snapshot records 119 matching company records, 2,833 tracked contacts and 369 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 15, 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
Fiber optic companies by geography
- Fiber optic companies based in Argentina
- Fiber optic companies based in Australia
- Fiber optic companies based in Austria
- Fiber optic companies based in Belgium
- Fiber optic companies based in Brazil
- Fiber optic companies based in Canada
- Fiber optic companies based in Chile
- Fiber optic companies based in Finland
- Fiber optic companies based in France
- Fiber optic companies based in Germany
- Fiber optic companies based in India
- Fiber optic companies based in Indonesia
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 fiber optic companies based in Spain. Snapshot: September 15, 2026. https://revenuebase.ai/companies/fiber-optic-companies/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 fiber optic companies based in Spain
RevenueBase records 119 matching company records for fiber optic companies based in Spain, with 2,833 tracked contacts and 369 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 15, 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 fiber optic companies 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 | Ufinetufinet.com HQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 1,182 contacts → |
“UFINET is a Latin American carrier of carriers providing high-quality solutions in the wholesale telecom market.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Adamo Telecom Iberia S.A.Uadamo.es HQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 298 contacts → |
“Adamo is a telecom operator with Swedish origin operating in Spain since 2007.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Lyntialyntia.com HQ: Alcobendas, SpainReported employees: 201-500 | Alcobendas, Spain | 201-500 | Exact match | 157 contacts → |
“lyntia is the leading wholesale optic fibre operator in Spain and Portugal, providing robust, flexible and sustainable connectivity solutions for the Telco and Cloud sector.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Cableworldcableworld.es HQ: Alicante, SpainReported employees: 201-500 | Alicante, Spain | 201-500 | Exact match | 132 contacts → |
“Cableworld es la compañía de servicios de telecomunicaciones por fibra óptica líder en en sus zonas de influencia, en la que ofrecemos de manera integrada servicios de Internet…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Cablescomcablescom.com HQ: Zaragoza, SpainReported employees: 201-500 | Zaragoza, Spain | 201-500 | Exact match | 92 contacts → |
“Cablescom es una de las principales compañías europeas dedicadas al diseño, fabricación y comercialización de cables de telecomunicaciones, señalización y fibra óptica.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Fibritelfibritel.com HQ: Illescas, SpainReported employees: 51-200 | Illescas, Spain | 51-200 | Exact match | 60 contacts → |
“Somos la Fibra Óptica que te conecta desde la España rural” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Lightmax SLlightmax.com HQ: Irun, SpainReported employees: 51-200 | Irun, Spain | 51-200 | Exact match | 49 contacts → |
“Lightmax SL empresa fundada en 2007 especializada en la fabricación y suministro de productos para redes pasivas de fibra óptica.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Silbö Telecomsilbotelecom.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 41 contacts → |
“Silbö es la nueva telco que solo te contará cosas que suenan bien.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Optral S.Aoptral.com HQ: Alcobendas, SpainReported employees: 51-200 | Alcobendas, Spain | 51-200 | Exact match | 40 contacts → |
“OPTRAL is a Spanish leader company, founded in 1988, engaged in fibre optic cable design, manufacture and worldwide known companies in the Telecom, Oil & Gas, Industry and…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | TDI Sistemas S.Ltdi-sistemas.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 37 contacts → |
“TDI Sistemas es una compañía de capital privado íntegramente español.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Modi SLmodisl.com HQ: Montcada I Reixac, SpainReported employees: 11-50 | Montcada I Reixac, Spain | 11-50 | Exact match | 37 contacts → |
“MODI, S.L (Mantenimiento y Operación de Infraestructuras, S.L), está formada por un grupo profesional con más de 25 años de experiencia en el diseño y construcción de redes de…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Oniviaonivia.net HQ: Pozuelo De Alarcón, SpainReported employees: 11-50 | Pozuelo De Alarcón, Spain | 11-50 | Exact match | 30 contacts → |
“Onivia es el operador mayorista de fibra óptica independiente y neutral, que está transformando el mercado de las telecomunicaciones en España.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Bluevíabluevia.es HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 26 contacts → |
“Somos un operador de red que ofrece servicios mayoristas de acceso FTTH y otros servicios de conectividad sobre tecnología de fibra.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Keynet Systemskeynet-systems.com HQ: Zaragoza, SpainReported employees: 11-50 | Zaragoza, Spain | 11-50 | Exact match | 21 contacts → |
“Keynet nace en 2014 como empresa y marca como resultado de nuestra inquietud por ofrecer al mercado la más amplia línea de productos pasivos para redes de cable estructurado y…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Fibercom SLfibercom.es HQ: Zaragoza, SpainReported employees: 11-50 | Zaragoza, Spain | 11-50 | Exact match | 17 contacts → |
“Fibercom ofrece productos y servicios de Fibra óptica en el ámbito de las Telecomunicaciones, cubriendo la totalidad de actividades involucradas en el proceso: ingeniería de redes…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Uptech Sensinguptech-sensing.com HQ: Mutilva, SpainReported employees: 1-10 | Mutilva, Spain | 1-10 | Exact match | 16 contacts → |
“UPTECH SENSING SL is a company that manufactures monitoring systems based on fiber optic solutions providing reliable real-time monitoring for assets in the industry.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Emser Innovaemser.es HQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 13 contacts → |
“Ingeniería comprometida con la innovación, con amplia experiencia en el ámbito industrial y de las telecomunicaciones, así como en el desarrollo de software de integración.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Keyfibre Network Components S.Lkeyfibre.com HQ: Ribarroja, SpainReported employees: 11-50 | Ribarroja, Spain | 11-50 | Exact match | 13 contacts → |
“KEYFIBRE (KeyFibre Network Components, S.L.) is a company within the KeyInnovation group based in Valencia, Spain.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Fiberco Instrumentación Industrial SLfiberco.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 13 contacts → |
“Expertos en conexiones, soluciones y productos en fibra óptica, desde 1992.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Standard Cableteam Spain S.Lstandardcableteam.com HQ: Maliaño, SpainReported employees: 51-200 | Maliaño, Spain | 51-200 | Exact match | 11 contacts → |
“Since 1927 the cable production plant in Maliaño – Cantabria has been producing both copper and optical fiber cables for the most relevant telecom and railways operators worldwide.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Digatel Telecomunicacionesdigateltelecom.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 11 contacts → |
“Somos una empresa dedicada a brindar soluciones para el despliegue y mantenimiento de infraestructura de redes de telecomunicaciones, especialmente las que requieren del uso de…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Merocom Solutionsmerocomsolutions.com HQ: Las Rozas De Madrid, SpainReported employees: 11-50 | Las Rozas De Madrid, Spain | 11-50 | Exact match | 10 contacts → |
“Merocom Solutions is a Spanish company with a subsidiary in China, founded in 2018.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | KYO Electrickyoelectric.es HQ: Villadangos Del Páramo, SpainReported employees: 11-50 | Villadangos Del Páramo, Spain | 11-50 | Exact match | 10 contacts → |
“Kyo Electric es una empresa dedicada al diseño, fabricación, distribución y alquiler de equipos especializados para empresas instaladoras de telecomunicaciones y operadoras de…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Einesa Cable SLeinesacable.com HQ: Lleida, SpainReported employees: 11-50 | Lleida, Spain | 11-50 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 119 company matches
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Fiber optic companies: dataset insights
September 15, 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
119 records in the displayed employee bands.
0 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 119 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 15, 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 fiber optic companies?
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 fiber optic companies did RevenueBase find based in Spain?
The saved snapshot records 119 matching company records, 2,833 tracked contacts and 369 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 15, 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
Fiber optic companies by geography
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- Fiber optic companies based in Brazil
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Cite this list
RevenueBase Data Team. Top 25 fiber optic companies based in Spain. Snapshot: September 15, 2026. https://revenuebase.ai/companies/fiber-optic-companies/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗