PDO Santorini / PDO Vinsanto / PGI CycladesAssyrtiko, Aidani, MavrotraganoFounded 1994Yiannis Paraskevopoulos and Leon KaratsalosWinemaker Yiannis ParaskevopoulosExo Gonia
Founded 1994 by Yiannis Paraskevopoulos (wine scientist and Master of Wine candidate) and Leon Karatsalos. Gaia operates two estates: the Santorini cellar at Exo Gonia and a second at Koutsi in Nemea.
Tasting: Walk-in and bookable tastings at the Exo Gonia cellar, including flights focused on Thalassitis (the cuvée briefly aged on the seabed in the Wild Ferment programme), Wild Ferment Assyrtiko, and Mavrotragano.
Signature wines: Gaia Thalassitis Assyrtiko, Gaia Wild Ferment Assyrtiko, Gaia Thalassitis Submerged
Tip: Thalassitis Submerged (aged in steel cages on the Aegean seabed) is the Gaia headline experience; the standard Thalassitis bottle is a long-running PDO Santorini bottling that pairs well with grilled fish.
PDO Santorini / PDO Vinsanto / PGI CycladesAssyrtiko, Aidani, Mavrotragano, Mandilaria, VoudomatoFounded 1997Hatzidakis family (Konstantina Chryssou, widow of founder)Winemaker Stamatina HatzidakiORGANIC CERTIFIEDPyrgos
Pyrgos-based organic estate founded 1997 by the late Haridimos Hatzidakis (1965 to 2017), a self-taught winemaker who pioneered the organic dry Santorini style.
Tasting: By appointment; structured tastings in the cellar including the Skitali (the heir) bottling continued in memory of the late founder, plus Aidani, Mavrotragano and the Hatzidaki Cuvée 17.
Signature wines: Hatzidakis Santorini Assyrtiko, Hatzidakis Aidani, Hatzidakis Mavrotragano, Hatzidakis Skitali Single-Vineyard Assyrtiko
Tip: The single-vineyard Cuvée 17 is the estate's most ambitious dry white; the rare monovarietal Aidani shows the lifted floral side of the PDO blend.
PDO Santorini / PDO Vinsanto / PGI CycladesAssyrtiko, Aidani, Mandilaria, Mavrotragano, VoudomatoFounded 2004Artemis KaramolegosWinemaker Artemis KaramolegosExo Gonia
Exo Gonia estate built by Artemis Karamolegos in 2004 on family vineyard parcels, with cellar door and the Aroma Avlis restaurant on the same site.
Tasting: Walk-in and reserved tastings year-round; on-site Aroma Avlis Food and Wine restaurant pairs the estate's bottlings with farm-to-table Mediterranean cooking.
Signature wines: Artemis Karamolegos Santorini Assyrtiko 34, Artemis Karamolegos Nykteri, Artemis Karamolegos Mavrotragano
Tip: Book a winery visit with lunch at Aroma Avlis on the cellar terrace; the Assyrtiko 34 (older-vines bottling) is the standout dry white.
PDO Santorini / PDO Vinsanto / PGI CycladesAssyrtiko, Aidani, MavrotraganoFounded 2014Yannis ValambousWinemaker Yannis PapaeconomouVourvoulos
Founded 2014 by Yannis Valambous on parcels inherited from his father after he left an economics career in London. Modern boutique cellar at Vourvoulos producing Assyrtiko under the standard Santorini label plus the older-vines Nassitis, Aidani, Vinsanto, Pet-Nat (PetNat) and Mavrotragano.
Tasting: Daily 11:00 to 20:00; tastings with food pairing in the modern Vourvoulos cellar, plus a small restaurant and accommodation through The Vasilicos.
Signature wines: Vassaltis Vineyards Santorini Assyrtiko, Vassaltis Nassitis, Vassaltis Plethora Single-Vineyard Assyrtiko, Vassaltis Plethora Single-Vineyard Assyrtiko
Tip: The Nassitis bottling (older Assyrtiko vines) is the structural step-up from the standard Santorini; the Pet-Nat is a rare ancestral-method expression from the island.
PDO Santorini / PDO VinsantoAssyrtiko, Aidani, Athiri, MavrotraganoFounded 1989Sterner Stenhus Greece (acquired 2022); Antetokounmpo family minority stake since 2023Megalochori
Boutari, the Macedonia-founded Greek wine house (1879), opened its Santorini facility in 1989 at Megalochori. The Santorini cellar contributed to the international launch of Assyrtiko through the 1990s; the Nykteri bottling is a long-running reference for the night-harvest style.
Tasting: Daily tasting flights at the Megalochori winery year-round; multi-wine flights pairing Boutari Santorini, Selladia and Nykteri with Greek cheeses and meze plates.
Signature wines: Boutari Kallisti Santorini Assyrtiko, Boutari Nykteri, Boutari Vinsanto
Tip: Boutari Nykteri is widely distributed in export markets and ages well at 5 to 8 years from vintage; the standard Boutari Santorini is the budget-friendly entry into the PDO.
PDO Santorini / PDO Vinsanto / PGI CycladesAssyrtiko, Aidani, Athiri, MavrotraganoFounded 1947Venetsanos familyMegalochori
Cliff-cut winery on the caldera above Athinios port, founded 1947 by the Venetsanos family. The gravity-flow design uses the cliff face to move must downhill through pressing and fermentation; restored and reopened to visitors as a working cellar plus tasting terrace.
Tasting: Daily 11:00 to 20:00 from May to October, reduced hours November to April. Sunset Terrace (May to September, 18:00 to 22:00) is the dedicated evening tasting space. Last tasting at 18:30.
Signature wines: Venetsanos Santorini Assyrtiko, Venetsanos Nykteri, Venetsanos Vinsanto
Tip: Time a sunset visit on the cliffside terrace; the gravity-flow press built into the rock face is a striking wine-tourism space.
