Company lists · Data refreshed September 2026
Top 25 Dark fiber providers worldwide
RevenueBase identified 1,462 company matches for dark fiber providers worldwide as of September 2026 and tracks 87,134 professional contacts across them, including 29,093 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.
This list covers company matches for dark fiber providers worldwide, 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. Country and city lists for dark fiber providers follow the table.
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 dark fiber providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 15,336 contacts → | ||||
Exact match “Lumen is the trusted network for the AI-powered world, connecting people, data, and applications through one of the world’s most expansive fiber networks.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 11,368 contacts → | ||||
Exact match “Frontier, a Verizon company, is one of the largest fiber providers in the U.S.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 3,876 contacts → | ||||
Exact match “ACT (Atria Convergence Technologies Ltd.) was born out of a vision to become the most admired in-home entertainment, education, and interactive services provider in India, back in…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 2,948 contacts → | ||||
Exact match “For more than 18 years, Zayo Group of companies has helped the world’s most ambitious organizations build the infrastructure behind what’s next.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 2,431 contacts → | ||||
Exact match “Converge ICT Solutions, Inc.(PSE: CNVRG) is the fastest-growing broadband service and technology provider in the Philippines.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 2,069 contacts → | ||||
Exact match “We’re Brightspeed, a fiber internet provider on a mission to bring more connectivity to America.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 1,938 contacts → | ||||
Exact match “Metronet, the nation's fastest-growing fiber-to-the-home builder, is now owned by a joint venture of T-Mobile, America's 5G leader, and KKR, the global investment firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 1,449 contacts → | ||||
Exact match “We started our journey in 2015 with a single mission - Bringing world class broadband experience to each Indian household.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 1,420 contacts → | ||||
Exact match “Hotwire Communications is a national leader in fiber optic technology, delivering advanced, customized telecommunications solutions to residential, commercial, senior-living…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 1,418 contacts → | ||||
Exact match “On Sept.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 1,247 contacts → | ||||
Exact match “Uniti is a premier insurgent fiber provider dedicated to enabling mission-critical connectivity across the United States.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 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 19, 2026 · View company records in RevenueBase | |||||
| 13 | 1,086 contacts → | ||||
Exact match “Wir sind der Digital-Versorger für das private, soziale, wirtschaftliche und öffentliche Leben in den Regionen.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 950 contacts → | ||||
Exact match “Segra owns and operates a wide and dense fiber-optic infrastructure footprint that provides state-of-the-art connectivity, cybersecurity, voice, cloud and colocation solutions…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 863 contacts → | ||||
Exact match “1 & 1 Versatel - Der deutsche Glasfaserspezialist 1 & 1 Versatel ist als Telekommunikationsspezialist für Firmenkunden einer der führenden Anbieter von Daten, Internet- und…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 831 contacts → | ||||
Exact match “Indonesia's robust IT market has paved the way for increasing demand in IT infrastructure, products and services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 641 contacts → | ||||
Exact match “DFA finances, builds, installs, manages, and maintains a world-class dark fibre network to transmit metro and long-haul telecommunications traffic in South Africa.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 604 contacts → | ||||
Exact match “Lightpath builds and operates all-fiber infrastructure designed for the AI era.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 578 contacts → | ||||
Exact match “Uniti Fiber is a wholly owned subsidiary of Uniti Group,a publicly traded Real Estate Investment Trust (REIT).” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 504 contacts → | ||||
Exact match “MetroFibre is a carrier-class infrastructure company that provides highly managed, ultra-fast fibre optic broadband connectivity across South Africa.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 483 contacts → | ||||
Exact match “IPLAN es la compañía líder en la provisión de Conectividad, Datacenter, Soluciones IT y Servicios Cloud para las empresas de las principales ciudades de la Argentina.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 443 contacts → | ||||
Exact match “Als führender Glasfaseranbieter Bayerns verbindet M-net seit 1996 Menschen und Unternehmen in Bayern, im Großraum Ulm und im hessischen Main-Kinzig-Kreis mit zuverlässiger…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 432 contacts → | ||||
Exact match “Eurofiber has been a provider of industry-leading open digital infrastructure since Utilizing our own fiberoptic network and datacenters, we provide smart, open, future-proof…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 410 contacts → | ||||
Exact match “Bharti Airtel Limited is a leading global telecommunications company with operations in 20 countries across Asia and Africa.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 371 contacts → | ||||
Exact match “LOGIX FIBER NETWORKS is a well-established Texas-based provider of telecommunications services since 1983.” 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 “dark fiber providers”. 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 1,462 dark fiber providers worldwide
See the full list, filter by size, metro and specialty, and access 29,093 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Dark fiber providers worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for dark fiber providers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “dark fiber providers” 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. 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 29,093 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.
Dark fiber providers by location
14 lists · largest firstEvery Dark fiber providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Dark fiber providers based in Brazil348
- Dark fiber providers based in the United States297
- Dark fiber providers based in Germany77
- Dark fiber providers based in the Netherlands48
- Dark fiber providers based in South Africa47
- Dark fiber providers based in Canada44
- Dark fiber providers based in France41
- Dark fiber providers based in Spain39
- Dark fiber providers based in the United Kingdom37
- Dark fiber providers based in India34
- Dark fiber providers based in Indonesia34
- Dark fiber providers based in Poland34
- Dark fiber providers based in Australia31
- Dark fiber providers based in Italy27
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 “dark fiber providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many dark fiber providers are there worldwide?
RevenueBase identified 1,462 company matches for dark fiber providers worldwide 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?
Lumen Technologies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most dark fiber providers?
Brazil leads with 348 companies, followed by the United States (297) and Germany (77). Every dark fiber providers list by country and city is linked on this page.
Which city has the most dark fiber providers?
Sao Paulo leads with 17 company records, followed by London (12) and Belo Horizonte (10).
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 29,093 professional contacts with verified work emails tracked across these 1,462 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 1,462 dark fiber providers worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 dark fiber providers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,462 matching company records for dark fiber providers worldwide, with 87,134 tracked contacts and 29,093 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 dark fiber providers worldwide
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 |  Lumen Technologieslumen.comHQ: Monroe, LA, United StatesReported employees: 10001+ | Monroe, LA, United States | 10001+ | Exact match | 15,336 contacts → |
“Lumen is the trusted network for the AI-powered world, connecting people, data, and applications through one of the world’s most expansive fiber networks.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Frontier Internetfrontier.comHQ: Dallas, TX, United StatesReported employees: 10001+ | Dallas, TX, United States | 10001+ | Exact match | 11,368 contacts → |
“Frontier, a Verizon company, is one of the largest fiber providers in the U.S.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  ACT Fibernetactcorp.inHQ: Bangalore, IndiaReported employees: 5,001-10,000 | Bangalore, India | 5,001-10,000 | Exact match | 3,876 contacts → |
“ACT (Atria Convergence Technologies Ltd.) was born out of a vision to become the most admired in-home entertainment, education, and interactive services provider in India, back in…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Zayo Groupzayo.comHQ: Denver, CO, United StatesReported employees: 5,001-10,000 | Denver, CO, United States | 5,001-10,000 | Exact match | 2,948 contacts → |
“For more than 18 years, Zayo Group of companies has helped the world’s most ambitious organizations build the infrastructure behind what’s next.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Converge ICT Solutions INCconvergeict.com HQ: Pasig, PhilippinesReported employees: 1,001-5,000 | Pasig, Philippines | 1,001-5,000 | Exact match | 2,431 contacts → |
“Converge ICT Solutions, Inc.(PSE: CNVRG) is the fastest-growing broadband service and technology provider in the Philippines.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Brightspeedbrightspeed.comHQ: Charlotte, NC, United StatesReported employees: 1,001-5,000 | Charlotte, NC, United States | 1,001-5,000 | Exact match | 2,069 contacts → |
“We’re Brightspeed, a fiber internet provider on a mission to bring more connectivity to America.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Metronetmetronet.comHQ: Evansville, IN, United StatesReported employees: 1,001-5,000 | Evansville, IN, United States | 1,001-5,000 | Exact match | 1,938 contacts → |
“Metronet, the nation's fastest-growing fiber-to-the-home builder, is now owned by a joint venture of T-Mobile, America's 5G leader, and KKR, the global investment firm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Excitel Broadbandexcitel.com HQ: New Delhi, IndiaReported employees: 1,001-5,000 | New Delhi, India | 1,001-5,000 | Exact match | 1,449 contacts → |
“We started our journey in 2015 with a single mission - Bringing world class broadband experience to each Indian household.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Hotwire Communications LTDhotwirecommunications.comHQ: Fort Lauderdale, FL, United StatesReported employees: 1,001-5,000 | Fort Lauderdale, FL, United States | 1,001-5,000 | Exact match | 1,420 contacts → |
“Hotwire Communications is a national leader in fiber optic technology, delivering advanced, customized telecommunications solutions to residential, commercial, senior-living…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Consolidated Communicationsfidiumfiber.comHQ: Mattoon, IL, United StatesReported employees: 1,001-5,000 | Mattoon, IL, United States | 1,001-5,000 | Exact match | 1,418 contacts → |
“On Sept.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Uniti Group INCuniti.comHQ: Little Rock, AR, United StatesReported employees: 501-1,000 | Little Rock, AR, United States | 501-1,000 | Exact match | 1,247 contacts → |
“Uniti is a premier insurgent fiber provider dedicated to enabling mission-critical connectivity across the United States.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Deutsche Glasfaser Unternehmensgruppedeutsche-glasfaser.deHQ: Düsseldorf, GermanyReported employees: 1,001-5,000 | Düsseldorf, Germany | 1,001-5,000 | Exact match | 1,086 contacts → |
“Wir sind der Digital-Versorger für das private, soziale, wirtschaftliche und öffentliche Leben in den Regionen.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  SEGRAsegra.comHQ: Charlotte, NC, United StatesReported employees: 1,001-5,000 | Charlotte, NC, United States | 1,001-5,000 | Exact match | 950 contacts → |
“Segra owns and operates a wide and dense fiber-optic infrastructure footprint that provides state-of-the-art connectivity, cybersecurity, voice, cloud and colocation solutions…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  1&1 Versatel1und1.netHQ: Düsseldorf, GermanyReported employees: 1,001-5,000 | Düsseldorf, Germany | 1,001-5,000 | Exact match | 863 contacts → |
“1 & 1 Versatel - Der deutsche Glasfaserspezialist 1 & 1 Versatel ist als Telekommunikationsspezialist für Firmenkunden einer der führenden Anbieter von Daten, Internet- und…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | PT Mega Akses Persada Fiberstarfiberstar.co.id HQ: Jakarta, IndonesiaReported employees: 501-1,000 | Jakarta, Indonesia | 501-1,000 | Exact match | 831 contacts → |
“Indonesia's robust IT market has paved the way for increasing demand in IT infrastructure, products and services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | DFAdfafrica.co.za HQ: Bryanston, South AfricaReported employees: 501-1,000 | Bryanston, South Africa | 501-1,000 | Exact match | 641 contacts → |
“DFA finances, builds, installs, manages, and maintains a world-class dark fibre network to transmit metro and long-haul telecommunications traffic in South Africa.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Lightpathlightpathfiber.comHQ: Bethpage, NY, United StatesReported employees: 501-1,000 | Bethpage, NY, United States | 501-1,000 | Exact match | 604 contacts → |
“Lightpath builds and operates all-fiber infrastructure designed for the AI era.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Uniti Fiberunitifiber.comHQ: Mobile, AL, United StatesReported employees: 501-1,000 | Mobile, AL, United States | 501-1,000 | Exact match | 578 contacts → |
“Uniti Fiber is a wholly owned subsidiary of Uniti Group,a publicly traded Real Estate Investment Trust (REIT).” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Metrofibremetrofibre.co.zaHQ: Highveld, South AfricaReported employees: 501-1,000 | Highveld, South Africa | 501-1,000 | Exact match | 504 contacts → |
“MetroFibre is a carrier-class infrastructure company that provides highly managed, ultra-fast fibre optic broadband connectivity across South Africa.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Iplan Argentinaiplan.com.arHQ: Ciudad Autónoma De Buenos Aires, ArgentinaReported employees: 201-500 | Ciudad Autónoma De Buenos Aires, Argentina | 201-500 | Exact match | 483 contacts → |
“IPLAN es la compañía líder en la provisión de Conectividad, Datacenter, Soluciones IT y Servicios Cloud para las empresas de las principales ciudades de la Argentina.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  M-Net Telekommunikations Gmbhm-net.deHQ: München, GermanyReported employees: 501-1,000 | München, Germany | 501-1,000 | Exact match | 443 contacts → |
“Als führender Glasfaseranbieter Bayerns verbindet M-net seit 1996 Menschen und Unternehmen in Bayern, im Großraum Ulm und im hessischen Main-Kinzig-Kreis mit zuverlässiger…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Eurofibereurofiber.comHQ: Maarssen, NetherlandsReported employees: 501-1,000 | Maarssen, Netherlands | 501-1,000 | Exact match | 432 contacts → |
“Eurofiber has been a provider of industry-leading open digital infrastructure since Utilizing our own fiberoptic network and datacenters, we provide smart, open, future-proof…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Airtel DRCairtel.comHQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 410 contacts → |
“Bharti Airtel Limited is a leading global telecommunications company with operations in 20 countries across Asia and Africa.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Logix Fiber Networkslogix.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 371 contacts → |
“LOGIX FIBER NETWORKS is a well-established Texas-based provider of telecommunications services since 1983.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,462 company matches
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Dark fiber providers: 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
1,453 records in the displayed employee bands.
9 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,462 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 ↗
Dark fiber providers by location
14 lists · largest firstEvery Dark fiber providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Dark fiber providers based in Brazil348
- Dark fiber providers based in the United States297
- Dark fiber providers based in Germany77
- Dark fiber providers based in the Netherlands48
- Dark fiber providers based in South Africa47
- Dark fiber providers based in Canada44
- Dark fiber providers based in France41
- Dark fiber providers based in Spain39
- Dark fiber providers based in the United Kingdom37
- Dark fiber providers based in India34
- Dark fiber providers based in Indonesia34
- Dark fiber providers based in Poland34
- Dark fiber providers based in Australia31
- Dark fiber providers based in Italy27
Questions about this company list
What does Exact match mean for dark fiber providers?
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 dark fiber providers did RevenueBase find worldwide?
The saved snapshot records 1,462 matching company records, 87,134 tracked contacts and 29,093 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
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Cite this list
RevenueBase Data Team. Top 25 dark fiber providers worldwide. Snapshot: September 19, 2026. https://revenuebase.ai/companies/browse/dark-fiber-providers.
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 dark fiber providers worldwide
RevenueBase records 1,462 matching company records for dark fiber providers worldwide, with 87,134 tracked contacts and 29,093 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 dark fiber providers worldwide
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 | Lumen Technologieslumen.com HQ: Monroe, LA, United StatesReported employees: 10001+ | Monroe, LA, United States | 10001+ | Exact match | 15,336 contacts → |
“Lumen is the trusted network for the AI-powered world, connecting people, data, and applications through one of the world’s most expansive fiber networks.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Frontier Internetfrontier.com HQ: Dallas, TX, United StatesReported employees: 10001+ | Dallas, TX, United States | 10001+ | Exact match | 11,368 contacts → |
“Frontier, a Verizon company, is one of the largest fiber providers in the U.S.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | ACT Fibernetactcorp.in HQ: Bangalore, IndiaReported employees: 5,001-10,000 | Bangalore, India | 5,001-10,000 | Exact match | 3,876 contacts → |
“ACT (Atria Convergence Technologies Ltd.) was born out of a vision to become the most admired in-home entertainment, education, and interactive services provider in India, back in…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Zayo Groupzayo.com HQ: Denver, CO, United StatesReported employees: 5,001-10,000 | Denver, CO, United States | 5,001-10,000 | Exact match | 2,948 contacts → |
“For more than 18 years, Zayo Group of companies has helped the world’s most ambitious organizations build the infrastructure behind what’s next.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Converge ICT Solutions INCconvergeict.com HQ: Pasig, PhilippinesReported employees: 1,001-5,000 | Pasig, Philippines | 1,001-5,000 | Exact match | 2,431 contacts → |
“Converge ICT Solutions, Inc.(PSE: CNVRG) is the fastest-growing broadband service and technology provider in the Philippines.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Brightspeedbrightspeed.com HQ: Charlotte, NC, United StatesReported employees: 1,001-5,000 | Charlotte, NC, United States | 1,001-5,000 | Exact match | 2,069 contacts → |
“We’re Brightspeed, a fiber internet provider on a mission to bring more connectivity to America.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Metronetmetronet.com HQ: Evansville, IN, United StatesReported employees: 1,001-5,000 | Evansville, IN, United States | 1,001-5,000 | Exact match | 1,938 contacts → |
“Metronet, the nation's fastest-growing fiber-to-the-home builder, is now owned by a joint venture of T-Mobile, America's 5G leader, and KKR, the global investment firm.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Excitel Broadbandexcitel.com HQ: New Delhi, IndiaReported employees: 1,001-5,000 | New Delhi, India | 1,001-5,000 | Exact match | 1,449 contacts → |
“We started our journey in 2015 with a single mission - Bringing world class broadband experience to each Indian household.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Hotwire Communications LTDhotwirecommunications.com HQ: Fort Lauderdale, FL, United StatesReported employees: 1,001-5,000 | Fort Lauderdale, FL, United States | 1,001-5,000 | Exact match | 1,420 contacts → |
“Hotwire Communications is a national leader in fiber optic technology, delivering advanced, customized telecommunications solutions to residential, commercial, senior-living…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Consolidated Communicationsfidiumfiber.com HQ: Mattoon, IL, United StatesReported employees: 1,001-5,000 | Mattoon, IL, United States | 1,001-5,000 | Exact match | 1,418 contacts → |
“On Sept.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Uniti Group INCuniti.com HQ: Little Rock, AR, United StatesReported employees: 501-1,000 | Little Rock, AR, United States | 501-1,000 | Exact match | 1,247 contacts → |
“Uniti is a premier insurgent fiber provider dedicated to enabling mission-critical connectivity across the United States.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Deutsche Glasfaser Unternehmensgruppedeutsche-glasfaser.de HQ: Düsseldorf, GermanyReported employees: 1,001-5,000 | Düsseldorf, Germany | 1,001-5,000 | Exact match | 1,086 contacts → |
“Wir sind der Digital-Versorger für das private, soziale, wirtschaftliche und öffentliche Leben in den Regionen.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | SEGRAsegra.com HQ: Charlotte, NC, United StatesReported employees: 1,001-5,000 | Charlotte, NC, United States | 1,001-5,000 | Exact match | 950 contacts → |
“Segra owns and operates a wide and dense fiber-optic infrastructure footprint that provides state-of-the-art connectivity, cybersecurity, voice, cloud and colocation solutions…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 1&1 Versatel1und1.net HQ: Düsseldorf, GermanyReported employees: 1,001-5,000 | Düsseldorf, Germany | 1,001-5,000 | Exact match | 863 contacts → |
“1 & 1 Versatel - Der deutsche Glasfaserspezialist 1 & 1 Versatel ist als Telekommunikationsspezialist für Firmenkunden einer der führenden Anbieter von Daten, Internet- und…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | PT Mega Akses Persada Fiberstarfiberstar.co.id HQ: Jakarta, IndonesiaReported employees: 501-1,000 | Jakarta, Indonesia | 501-1,000 | Exact match | 831 contacts → |
“Indonesia's robust IT market has paved the way for increasing demand in IT infrastructure, products and services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | DFAdfafrica.co.za HQ: Bryanston, South AfricaReported employees: 501-1,000 | Bryanston, South Africa | 501-1,000 | Exact match | 641 contacts → |
“DFA finances, builds, installs, manages, and maintains a world-class dark fibre network to transmit metro and long-haul telecommunications traffic in South Africa.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Lightpathlightpathfiber.com HQ: Bethpage, NY, United StatesReported employees: 501-1,000 | Bethpage, NY, United States | 501-1,000 | Exact match | 604 contacts → |
“Lightpath builds and operates all-fiber infrastructure designed for the AI era.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Uniti Fiberunitifiber.com HQ: Mobile, AL, United StatesReported employees: 501-1,000 | Mobile, AL, United States | 501-1,000 | Exact match | 578 contacts → |
“Uniti Fiber is a wholly owned subsidiary of Uniti Group,a publicly traded Real Estate Investment Trust (REIT).” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Metrofibremetrofibre.co.za HQ: Highveld, South AfricaReported employees: 501-1,000 | Highveld, South Africa | 501-1,000 | Exact match | 504 contacts → |
“MetroFibre is a carrier-class infrastructure company that provides highly managed, ultra-fast fibre optic broadband connectivity across South Africa.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Iplan Argentinaiplan.com.ar HQ: Ciudad Autónoma De Buenos Aires, ArgentinaReported employees: 201-500 | Ciudad Autónoma De Buenos Aires, Argentina | 201-500 | Exact match | 483 contacts → |
“IPLAN es la compañía líder en la provisión de Conectividad, Datacenter, Soluciones IT y Servicios Cloud para las empresas de las principales ciudades de la Argentina.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | M-Net Telekommunikations Gmbhm-net.de HQ: München, GermanyReported employees: 501-1,000 | München, Germany | 501-1,000 | Exact match | 443 contacts → |
“Als führender Glasfaseranbieter Bayerns verbindet M-net seit 1996 Menschen und Unternehmen in Bayern, im Großraum Ulm und im hessischen Main-Kinzig-Kreis mit zuverlässiger…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Eurofibereurofiber.com HQ: Maarssen, NetherlandsReported employees: 501-1,000 | Maarssen, Netherlands | 501-1,000 | Exact match | 432 contacts → |
“Eurofiber has been a provider of industry-leading open digital infrastructure since Utilizing our own fiberoptic network and datacenters, we provide smart, open, future-proof…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Airtel DRCairtel.com HQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 410 contacts → |
“Bharti Airtel Limited is a leading global telecommunications company with operations in 20 countries across Asia and Africa.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Logix Fiber Networkslogix.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 371 contacts → |
“LOGIX FIBER NETWORKS is a well-established Texas-based provider of telecommunications services since 1983.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,462 company matches
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Dark fiber providers: 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
1,453 records in the displayed employee bands.
9 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,462 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 ↗
Dark fiber providers by location
14 lists · largest firstEvery Dark fiber providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Dark fiber providers based in Brazil348
- Dark fiber providers based in the United States297
- Dark fiber providers based in Germany77
- Dark fiber providers based in the Netherlands48
- Dark fiber providers based in South Africa47
- Dark fiber providers based in Canada44
- Dark fiber providers based in France41
- Dark fiber providers based in Spain39
- Dark fiber providers based in the United Kingdom37
- Dark fiber providers based in India34
- Dark fiber providers based in Indonesia34
- Dark fiber providers based in Poland34
- Dark fiber providers based in Australia31
- Dark fiber providers based in Italy27
Questions about this company list
What does Exact match mean for dark fiber providers?
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 dark fiber providers did RevenueBase find worldwide?
The saved snapshot records 1,462 matching company records, 87,134 tracked contacts and 29,093 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 dark fiber providers worldwide. Snapshot: September 19, 2026. https://revenuebase.ai/companies/browse/dark-fiber-providers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗