Company lists · Data refreshed September 2026
Top 25 Landline telephone companies worldwide
RevenueBase identified 358 landline telephone companies worldwide as of September 2026 and tracks 24,885 professional contacts across them, including 3,818 with verified work emails. The United States is the largest market and Brasilia the largest hub.
This list covers landline telephone companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for landline telephone companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest landline telephone companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 7,275 contacts → | ||||
Indirect evidence “Windstream and Uniti have merged - Please follow us at Uniti Group, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,222 contacts → | ||||
Indirect evidence “Somos uma operadora independente de telecomunicações, com sede na cidade de São Paulo/SP, que oferece serviços de internet de alta velocidade por fibra óptica, além de TV por…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 980 contacts → | ||||
Indirect evidence “For more than 20 years, Paltel seeks to enrich the life of its customers with innovative communications and entertainment solutions to “Change Tomorrow”.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 562 contacts → | ||||
Indirect evidence “За A1 Компанијата А1 Македонија е член на А1 Телеком Австрија Групацијата, водечки провајдер за комуникациски и дигитални решенија во Централна и Источна Европа кој работи во…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 477 contacts → | ||||
Indirect evidence “Mtel a.d.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 430 contacts → | ||||
Indirect evidence “TELNOR (Teléfonos del Noroeste), empresa líder en servicios de comunicación de telefonía local, larga distancia, proveedora de internet, servicios similares y soluciones…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 419 contacts → | ||||
Indirect evidence “With 4 decades of legacy, Beetel is a customer-first organization that bridges the gap between businesses and people through innovative, contemporary solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 417 contacts → | ||||
Indirect evidence “At the heart of our company are employees who truly care about customers and ensuring they are connected through Internet, TV, and Voice.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 398 contacts → | ||||
Indirect evidence “At Ritter Communications, we have over a century-long tradition of providing quality residential and business communication services all across Arkansas.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 396 contacts → | ||||
Indirect evidence “ONO es la compañía de comunicación y entretenimiento por fibra óptica líder en España.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 254 contacts → | ||||
Indirect evidence “Fixed and mobile, Telecommunications Solution Service provider, we specialize in customer service and quality telecom services for the Industry, Commercial and Residential…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 251 contacts → | ||||
Indirect evidence “МГТС, это инфраструктурный оператор и партнер города Москвы.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 201 contacts → | ||||
Partial evidence “Founded in 2004, we at sipgate were the first German VoIP provider and have been developing internet and telephony services ever since.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 187 contacts → | ||||
Indirect evidence “Meditel S.A es una empresa joven y dinamica cuyo objetivo es brindar soluciones en el área de las telecomunicaciones, tanto a individuos como a empresas.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 175 contacts → | ||||
Indirect evidence “U Iskonu, koji je dio Hrvatskog Telekoma, kreiramo ponude i nudimo zasebnu podršku korisnicima fiksnih telekomunikacijskih usluga.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 169 contacts → | ||||
Indirect evidence “Te conectamos al mundo.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 140 contacts → | ||||
Indirect evidence “General info Mobitel telecommunications services PLC Vilharjeva 23, 1537 Ljubljana, Slovenia Tel:+ 386 (0)1 47 22 200 Fax:+ 386 (0)1 47 22 990 EU VAT number: SI64679438…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 132 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 96 contacts → | ||||
Indirect evidence “Nuvera has been providing communication solutions for both home and business for over 110 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 88 contacts → | ||||
Indirect evidence “Coyser S.A.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 72 contacts → | ||||
Indirect evidence “Tu operador de Telecomunicaciones” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 57 contacts → | ||||
Partial evidence “DTC offers advanced communications services, including high speed internet, security, landline phone service, customized business systems, and DTC TV service.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 55 contacts → | ||||
Indirect evidence “Chartered in 1951, PRTC is a world class communications company with its heart firmly planted in the Lowcountry of South Carolina.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 54 contacts → | ||||
Indirect evidence “MDS Impianti vanta un’esperienza decennale nei settori dell’impiantistica e delle telecomunicazioni.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 54 contacts → | ||||
Indirect evidence “Sky Telecom is providing telecom services in UK since 1996.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: landline telephone companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names landline telephone companies.
- Partial evidence
- Its own public description names part of landline telephone companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name landline telephone companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 358 landline telephone companies worldwide
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Landline telephone companies worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among landline telephone companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for landline telephone companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “landline telephone companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names landline telephone companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among landline telephone companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 3,818 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Landline telephone companies by location
2 lists · largest firstEvery Landline telephone companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names landline telephone companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many landline telephone companies are there worldwide?
RevenueBase identified 358 landline telephone companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Windstream, headquartered in Little Rock, tops this list with the largest team on record.
Which country has the most landline telephone companies?
The United States leads with 58 companies, followed by Brazil (48). Every landline telephone companies list by country and city is linked on this page.
Which city has the most landline telephone companies?
Brasilia leads with 3 headquartered companies, followed by London (3) and Malaga (3).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,818 verified decision-maker contacts tracked across these 358 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.