Kir-Yianni Acquires Majority Stake in Santorini’s Domaine Sigalas

Greek wine producer Kir-Yianni has acquired a majority stake in renowned Santorini winery Domaine Sigalas from a company owned by shipping magnate Thanassis Martinos. The financial terms of the deal were not disclosed.

The acquisition strengthens Kir-Yianni’s position as one of Greece’s leading wine groups and further cements its role as a global ambassador for Greek wine.

The two estates have enjoyed a close relationship since 2009. In 2020, Kir-Yianni assumed full management of Domaine Sigalas and launched a comprehensive investment program focused on vineyard development, infrastructure upgrades, and talent.

Founded in 1991 and based in the village of Oia, Domaine Sigalas farms 45 hectares of old-vine Assyrtiko and other indigenous varieties on Santorini’s volcanic soils. Its portfolio centers on premium white wines — including flagship labels such as Kavalieros, Nychteri, and Aidani — alongside select red and Vinsanto sweet wines, which are exported to key markets including the UK, US, France, Australia, and China.

Stellios Boutaris, winemaker and CEO of Kir-Yianni, commented:
“This acquisition is the strongest expression of our belief in Santorini’s vineyards and wines. Our long-term strategic investment on the island reflects both deep respect for tradition and a commitment to science-driven innovation. Despite the challenges of this year’s harvest, we have a clear plan and the determination to build a sustainable future.”

With Domaine Sigalas now under its umbrella, Kir-Yianni expands its estate portfolio to three regions: Naoussa, Amyndeon, and Santorini.

Founded in 1997 by Yiannis Boutaris after leaving the family-owned Boutari company, Kir-Yianni is best known for its Xinomavro-based reds as well as whites and rosés under labels such as Paranga, L’Esprit du Lac, and Ble Tracter.

According to preliminary 2025 estimates from the International Organisation of Vine and Wine (OIV), Greece is projected to rank as the EU’s ninth-largest wine producer by volume, with output expected to reach 1.5 million hectolitres — a 9% increase from 2024 but still 20% below the five-year average.