U.S. LEADERSHIP
Thomas Papakonstantinou
Chief Executive Officer
Thomas Papakonstantinou founded Artemis ITS in Greece in 2008 and has led it from a local telecom services firm into a European infrastructure group of approximately 900 people operating across Greece, Germany, the Netherlands and Austria, with €172.4M in revenue. Under his leadership, Artemis has designed, built and maintained fiber networks for leading European carriers and network operators – including through Germany’s fastest period of fiber expansion, where the group scaled multi-crew self-performed construction across major FTTH programs.
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Nikos Karoutsos
Group CFO – U.S. Finance & Reporting
Nikos Karoutsos has been with Artemis ITS for more than sixteen years, joining as Finance Manager in 2010 and serving as Group Chief Financial Officer since 2020. He has overseen the group’s finances through its entire growth arc — from a single-country operation into a ~900-person organization across Greece, Germany, the Netherlands and Austria — spanning group financing, audited reporting, banking relationships, and the financial management of rapid multi-market expansion, including the group’s German operations.
Read profileGROUP EXECUTIVES
Leading the U.S. market entry.
Senior leaders from the wider Artemis ITS group, bringing international delivery experience to our U.S. operations.
Michele Gressani
Business Development Director, Artemis ITS Group
Michele Gressani leads business development for Artemis ITS’s entry into the U.S. market. He joined Artemis in 2025 from Sirti, Italy’s leading telecommunications infrastructure company, where he served as General Manager of Sirti Telco Infrastructures. Before that he spent more than twenty years in senior leadership at Ericsson – as General Manager of Ericsson Mexico and key account manager for América Móvil; as Head of Network Services & Operations for the Mediterranean region, leading a 4,500-person delivery organization across 22 countries; and as General Manager for Romania and Moldova.
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Eftychia Massali
Chief Technology Officer, Artemis ITS Group
Eftychia Massali has been with Artemis ITS since 2018, through the heart of the group’s European fiber expansion. She led the group’s Project Management Department across Germany, the Netherlands, and Austria for five years, followed by two years leading the Account Management Department. She have been involved in establishing operations and project delivery. Her responsibilities included rollout planning, budgeting, financial management, and the supervision of project managers and account managers across FTTH programs in all three countries. She now supports the adaptation of the group’s delivery methodology to U.S. requirements.
Read profileU.S. Advisory Board
Independent Perspective.
Industry Experience.
Strategic Guidance.
Our U.S. Advisory Board brings external perspective and senior industry experience, supporting Artemis ITS leadership with strategic guidance and market insight as we expand our presence in the United States.
External
Uwe Nickl
Former CEO of Deutsche Glasfaser, which he built from startup into Germany’s leading alternative FTTH provider, valued at €2.8 billion at its 2020 sale. More than 30 years in telecom as executive and investor, including euNetworks and Level 3.
Pantelis Papageorgiou
Co-founder of firstAthens and General Partner of Elikonos Capital Partners; former CFO of Velti plc, then one of the largest Greek-founded companies listed in London and on NASDAQ. International finance, capital markets and venture investment expertise.
John Michael Ryan
Former Chief Legal Officer of Level 3 Communications (now Lumen Technologies), where he led global legal and regulatory affairs; with Level 3 from 1999 and previously a partner at Fraser Stryker. Three decades in communications law and major telecom transactions.
John Scarano
Co-founder of Zayo and former President and COO of its Bandwidth Infrastructure business; founder and former CEO of Wyyerd Fiber, the Arizona-based fiber provider; previously Vice Chairman of euNetworks.
Tasos Tsolakis
Chairman and former CEO of JSI, the leading U.S. consulting and engineering firm serving rural broadband operators. Previously senior operations executive at Continuum and Iron Mountain; three decades leading global service-delivery transformations.
U.S. FIELD OPERATIONS
Leadership where
delivery happens.
Michael Price
Implementation Manager, Arizona
35+ years in fiber and utility construction; OSHA 30 certified; Qualifying party on the company’s Arizona contractor license.
Patrick Swartz
Site Construction Manager
A graduate civil engineer with more than seven years of fiber deployment experience, Patrick supports field execution across U.S. operations.
Leadership Built Around Delivery
Multiple layers of expertise.
One delivery objective.
Our leadership model connects executive oversight, field experience, specialist group functions and external advisory expertise around one objective: delivering infrastructure programs responsibly, efficiently and at scale.
LET’S CONNECT
Talk to people
behind the delivery.
Whether you’re planning a telecommunications infrastructure program, evaluating a delivery partner or exploring a strategic opportunity, connect with our U.S. team.