Who Owns Terna Energy Company?

Who owns Terna Energy now?

In late 2024 Masdar agreed to buy a majority stake in Terna Energy, valuing equity at €2.4 billion and enterprise value at €3.2 billion. The deal marked the largest energy transaction on the Athens Stock Exchange and shifted control toward Gulf sovereign capital.

Terna Energy, founded in 1997 as part of GEK TERNA, operates >1.2 GW today and targets 6 GW by 2030; the Masdar acquisition transforms its ownership and links Greek renewables to international climate finance. Terna Energy Porter's Five Forces Analysis

Terna Energy was created as the renewable arm of GEK TERNA, led by Georgios Peristeris, with early ownership concentrated within the GEK TERNA Group to exploit Greece’s high wind and solar potential.

Founding sponsor

GEK TERNA provided initial capital, technical expertise and project pipeline during the late 1990s and early 2000s.

Key founder

Georgios Peristeris acted as the primary architect and executive sponsor across parent and subsidiary roles.

Initial equity split

During early development GEK TERNA held a stake above 75%, preserving control and strategic direction.

Financing sources

Seed funding relied on internal group cash flows and project finance from Piraeus Bank and National Bank of Greece.

Strategic focus

The founding team prioritized asset accumulation and vertical integration over rapid dilution via venture capital.

Path to IPO

Stable early ownership under GEK TERNA enabled a 2007 public listing without major founder dilution.

Early ownership stability shaped Terna Energy corporate structure and Terna Energy ownership details, with the parent company maintaining majority control until post-IPO shareholder diversification.

Founders and early ownership—key facts

Core facts on who owns Terna Energy and how initial control was structured.

• Primary founder and influence: Georgios Peristeris held executive roles in both GEK TERNA and Terna Energy.
• Parent company majority: GEK TERNA maintained > 75% stake in early phases.
• Financing mix: internal cash flows plus project finance from major Greek banks.
• Ownership approach: limited external investor rounds before the 2007 IPO, preserving founder control.

For wider context on market peers and Terna Energy shareholders, see Competitors Landscape of Terna Energy

Terna Energy’s ownership evolved from a diversified public listing in 2007 to concentrated control after a 2024–2025 takeover, shifting strategic direction toward international expansion under new majority ownership.

The post-acquisition structure makes the Abu Dhabi-based investor the Terna Energy parent company, using the platform to accelerate projects across the Balkans and Southeast Europe; public free float was reduced to a residual minority by mid-2025.

Ownership snapshot and implications

Key stakeholders shifted from a diversified public shareholder base to near-total ownership by Masdar, reshaping governance and capital access.

• Primary shareholder: Masdar — controlling interest > 90% as of mid-2025
• Former anchor: GEK TERNA — ~37.3% pre-sale (early 2024)
• Institutional minority holders: BlackRock and European pension funds — typically 1–5%
• Strategic outcome: Terna Energy serves as Masdar’s regional platform

For further context on corporate positioning and strategy following the ownership change see Marketing Strategy of Terna Energy

Terna Energy's board has been reshaped since the Masdar acquisition, now combining Abu Dhabi Future Energy Company representatives with legacy directors; Georgios Peristeris remains a prominent figure while operational leadership continues under the existing executive team.

Voting power aligns strictly with equity ownership under a one-share-one-vote regime; there are no dual-class shares or government-held golden shares affecting control, enabling Masdar to drive major capital decisions such as the 585 MW Amfilochia pumped storage project.

Board composition and control

Post-acquisition governance centralizes strategic decision-making with the majority shareholder while retaining experienced Greek board members to ensure market continuity.

• Masdar holds > 66.7% voting power, enabling extraordinary resolutions
• One-share-one-vote corporate structure binds control to ownership
• Continuity maintained via Georgios Peristeris and legacy executives
• Major projects, including Amfilochia, benefit from streamlined approval

For broader context on Terna Energy ownership and market positioning see Target Market of Terna Energy

Over the past three years Terna Energy’s ownership shifted from a domestic construction-led group to majority control by international strategic investors, highlighted by the exit of GEK TERNA and increasing consolidation under a sovereign-backed platform.

Financials for H1 2025 show a marked uptick in capital expenditure to support project pipeline, with group capex rising year-on-year by more than 40%, funded predominantly by the new parent company’s liquidity.

Strategic consolidation

International strategic investors consolidated shares to build scale and de-risk development pipelines, aligning Terna Energy with global platforms and capital.

Supply-chain integration

In 2025 Terna Energy is integrating operations with Masdar’s global supply chain to reduce procurement costs for wind turbines and solar panels and improve project delivery timelines.

Potential delisting scenario

Market analysts indicate a plausible squeeze-out if Masdar acquires remaining shares and reaches 100% ownership, which would remove Terna Energy from the Athens Exchange.

Market maturation

The ownership evolution reflects maturation of the Greek renewable market and rising global appetite for stabilized, high-yield Mediterranean green energy assets; see additional context in Mission, Vision & Core Values of Terna Energy.