What Does OTE group Do?

Total employees1124
HeadquartersMarousi, Athens
Founded1991

OTE Group (Hellenic Telecommunications Organization S.A.) is the largest technology company in Greece and a key player in the Southeastern European telecommunications market. As part of the Deutsche Telekom Group, OTE offers a comprehensive range of services including fixed-line and mobile telephony, broadband internet, pay-TV, and integrated ICT solutions to residential and business customers. Operating primarily under the COSMOTE brand for its core services and GERMANOS for retail, OTE is committed to driving digital transformation in Greece through significant investments in next-generation networks like 5G and Fiber to the Home (FTTH).

Where Is OTE group's Headquarters?

HQ Function

Serves as the central administrative and strategic hub for all OTE Group operations, overseeing technological development, financial management, and corporate strategy for its activities in Greece and Southeastern Europe.

Notable Features:

The OTE Megaron is an iconic architectural landmark in Athens, featuring a distinctive design, extensive office facilities, and advanced technological infrastructure. It houses data centers and core network operations facilities.

Work Culture:

A blend of a well-established corporate environment with a strong emphasis on innovation, technological advancement, and customer-centricity. Encourages collaboration, continuous learning, and adaptation to the fast-evolving digital landscape.

HQ Significance:

The headquarters is the nerve center of Greece's primary telecommunications provider, playing a crucial role in the nation's digital infrastructure development and economic progress. It symbolizes OTE's leadership in the Greek tech sector.

Values Reflected in HQ: The headquarters embodies OTE's commitment to technological leadership, innovation, reliability, national connectivity, and a forward-looking vision for a digital society.

Location:

OTE Group's primary operations are centered in Greece, where it is the dominant telecommunications provider. It also maintains a significant presence in Southeastern Europe, notably in Romania through Telekom Romania Mobile Communications. The Group supports a full spectrum of telecommunications services globally for its customers, including fixed and mobile telephony, high-speed broadband, pay-TV services, and advanced ICT solutions for businesses, leveraging its robust network infrastructure and partnerships within the Deutsche Telekom Group.

Street Address:

99 Kifissias Avenue

City:

Marousi, Athens

State/Province:

Attica

Country:

Greece

Where Else Does OTE group Operate Around the World?

Bucharest, Romania

Address: Globalworth Tower, 201 Barbu Văcărescu Street, 16th-18th Floors, District 2, 020276, Bucharest, Romania

Serves as OTE Group's primary operational hub in Romania, focusing on providing competitive mobile services and contributing to the Group's presence in Southeastern Europe.

Buying Intent Signals for OTE group

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Who's Leading OTE group? Meet the Executive Team

As of April 2025, OTE group' leadership includes:

Michael Tsamaz - Chairman of the BoD & Chief Executive Officer
Charalampos Mazarakis - Chief Financial Officer, OTE Group
Stefanos Theocharopoulos - Chief Officer Technology & Operations, OTE Group
Panayiotis Gabrielides - Chief Marketing Officer Consumer Segment, OTE Group
Elena Papadopoulou - Chief Officer Human Resources, OTE Group

Who's Investing in OTE group?

OTE group has been backed by several prominent investors over the years, including:

Deutsche Telekom AG
Hellenic Republic Asset Development Fund (HRADF)
Various institutional and private investors via Athens Exchange and London Stock Exchange (GDRs)

What Leadership Changes Has OTE group Seen Recently?

Hire1
Exits0

In the last 12 months (May 2023 - May 2024), a key leadership appointment occurred within OTE Group's subsidiary, Telekom Romania Mobile Communications, with Konstantinos Nebis taking over as CEO. The top executive team at the OTE Group level has remained largely stable during this period.

New Appointments:

Konstantinos Nebis, Konstantinos Nebis was appointed CEO of Telekom Romania Mobile Communications S.A., effective November 1, 2023, to lead the company's operations and strategy in the Romanian mobile market.

What Technology (Tech Stack) Is Used byOTE group?

Discover the tools OTE group uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

OTE group Email Formats and Examples

OTE Group (ote.gr) likely utilizes common corporate email patterns. While exact internal structures can vary, frequent formats are based on employee names, such as 'firstname.lastname' or 'firstinitiallastname'.

firstname.lastname@ote.gr or finitiallastname@ote.gr

Format

jane.doe@ote.gr or jdoe@ote.gr

Example

75%

Success rate

What's the Latest News About OTE group?

Capital.grMay 16, 2024

OTE Group Q1 2024 Consolidated Revenues Up 0.5% to €808.9 mln

OTE Group announced its financial results for the first quarter of 2024, reporting a slight increase in consolidated revenues to €808.9 million. The company highlighted solid performance in Greece, driven by mobile services and ICT projects, alongside continued investment in fiber optic and 5G networks....more

OTE GroupApril 25, 2024

OTE Group: €3.7 billion contribution to Greek economy and society in 2023

OTE Group released its 2023 Integrated Sustainability Report, highlighting its socio-economic contribution, which amounted to €3.7 billion. The report details progress in areas like digital inclusion, environmental protection, and responsible corporate governance, emphasizing investments in sustainable growth and technology for a better world....more

OTE Group Annual Report 2023 PublicationMarch 7, 2024

OTE Group Accelerates Fiber Optic Network Expansion Across Greece

OTE Group, in its 2023 annual report and subsequent communications, reiterated its commitment to expanding its Fiber to the Home (FTTH) network, aiming for extensive coverage across Greece. This investment is crucial for providing ultra-high-speed internet and supporting the country's digital transformation, alongside the continued rollout of its 5G network....more

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