Telecommunication services for your business

O2 is currently the largest provider of integrated telecommunications services in the Czech Republic and Slovakia with almost 9 million mobile and fixed-line accounts. Since 2015 our O2 Business Services subsidiary has offered solutions even for the most demanding customers. We provide business, corporate and government accounts with a comprehensive portfolio of fixed-line voice and data services, mobile services and professional ICT solutions.

Discover our solutions and services for companies and corporations >

Simple +  Clear +  Fair

Foundation of O2 Business Services has contributed to the fact that O2 Slovakia became a fully-fledged telecommunication operator with a view to corporate clients and public sector.

We, as a company on a stand-alone basis, are flexible, dynamic and provide our customers with individual treatment and support. Our team has a long-standing experience and is ready to provide you with telecommunication solutions working for you.

We look forward to working with you.

Ing. Stanislav Molčan 

Chairman of the board of O2 Business Services

Significant milestones


O2 arrives in Slovakia

Start of O2 brand mobile service sales in Slovakia.


First with LTE

O2 was the very first in Slovakia to launch pilot LTE commercial operations, in selected western towns.


O2 Business Services spun off

O2 Slovakia’s corporate division becomes a separate company, O2 Business Services, to increase efficiency and flexibility and improve the quality of services it provides corporate clients.

O2’s own Slovakia wide fixed network

O2 constructs its own fixed network in the licensed 3.7 GHz band to serve all of Slovakia. It is now ready for fixed-line voice and data services to be put in place.

New full-value service portfolio

O2 Business Services adds its own fixed-line voice and data services and professional ICT solutions to have a full-value portfolio of telecommunications services available to customers.

Named Employer of the Year for the third time

For the third time O2 is named Employer of the Year. O2 was ranked first among large firms in a study of the best employers in Slovakia conducted by Aon Hewitt, a global leader in human resources and outsourcing.


More ISO certificates

Certification processes were successfully finished right at the beginning of the year and from now on we hold new ISO certificates. Specifically BS 10500 Anti-bribery management and ISO 20000-1 Information Systems - Service management.

Seal of reliability

A reliable partner not only for your business

The National Information Center of the Slovak republic has evaluated us a Reliable partner in Public procurement.

We have been awarded the SEAL of RELIABILITY and become its proud bearer since May 2017.

We process your personal data fairly and lawfully

We were awarded ISO 27018 for protection of personally identifiable information (PII) in public clouds. We work hard to ensure your data is safe, following all the necessary procedures.


Operator of the Year for the first time

O2 becomes Mobile Operator of the Year for the first time.


Both in Czech Republic and Slovakia

O2 cancels roaming in the Czech Republic. Calls, SMSs and internet services now cost the same there as at home.


Seven-time Operator of the Year

For the seventh year in a row O2 emerged on top in the TECHBOX of the Year independent survey. The results affirm that customers value a fair and transparent approach and new ideas in the telecommunications market.

Most advanced mobile unit

After launching IPTV services, O2 is moving to produce multimedia content, too. We have purchased the most advanced OB van on the market to transmit any event live. Our remote truck is equipped to be among the top in Europe.

Largest Czecho-Slovak operator

8 million mobile and fixed line customers and 6.7 million mobile accounts make the O2 Group the largest telecommunications operator in the Czech Republic and Slovakia. Extensive experience in both markets help us provide our customers with first-class services.

Cutting-edge backbone network

O2 is currently building a new concept in a state-of-the-art fiber optic backbone network. We recently made significant progress by acquiring an intercity fiber optic network from several local providers.

The first offer of unlimited services across the EU

On the Slovak market, we are the first operator to introduce EU flat, i.e. unlimited calls and messages and a huge amount of data across the whole EU. 

Certificates ISO and NBU (National Security Bureau in Slovakia)

We are holders of these certificates: ISO 9001:2015, ISO 14001:2015, ISO 27001:2015 as well as of the confirmation on safety measures. 
This is in compliance with regulatory standards on quality management, information security issues and environmental management.

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The IP Connect works for NAY Elektrodom 

The IP Connect Service provides a reliable, profitalbe and secure connection among individual NAY Elektrodom branch offices. They use the overly efficient MPLS network based on the state-of-the-art technology.