Wiki - Firms

Horizon Yachts is one of Asia’s most established luxury-yacht manufacturers. horizonyacht.com

HK-Engineering is a German restoration institution specializing in the Mercedes-Benz 300 SL Coupé and Roadster. hk-engineering.com

Hemmerle is one of the most respected independent family jewelers in Europe. hemmerle.com

Heesen Yachts is a Dutch builder of steel and aluminium superyachts with a particularly strong association with performance, efficient hull forms, and structured construction programs. heesenyachts.com

HBA Art Advisory is an independent practice led by Holly Baxter and focused on the formation and stewardship of contemporary-art collections. hollybaxterandassociates.com

Harry Winston remains one of the world’s foremost diamond-led high-jewelry houses. harrywinston.com

Hakvoort is a family-owned Dutch shipyard specializing in steel and aluminium custom motor yachts. hakvoort.com

Hajime Asaoka is a self-taught Japanese independent watchmaker whose work has gained international recognition for disciplined design, manually intensive production, and distinctive movement construction. hajimeasaoka.com

Habring² is an Austrian independent watchmaking company created by Maria and Richard Habring. habring2.com

H. Moser & Cie. combines historical Swiss watchmaking heritage with a contemporary independent-manufacture model. The brand is known for fumé dials, restrained design, sophisticated in-house movements, and a willingness to question established luxury-watch conventions. h-moser.com

Gurr Johns is one of the longest-established independent art advisory and valuation firms in the international market. gurrjohns.com

GURNER Group is an Australian luxury developer with activities spanning residential real estate, private clubs, wellness, hospitality, and property management. gurner.com.au

Gunther Werks specializes in high-performance reinterpretations of the Porsche 993 platform. guntherwerks.com

GTO Engineering is one of the most respected Ferrari specialists in the restoration, servicing, repair, engine building, parts, event support, and acquisition market. gtoengineering.com

Grosvenor occupies a distinctive position within global luxury real estate through its centuries-long association with Mayfair and Belgravia. grosvenor.com

Grönefeld, led by brothers Bart and Tim Grönefeld, is one of the most respected independent watchmaking ateliers outside Switzerland. gronefeld.com

Greubel Forsey is among the most technically ambitious independent watchmakers operating today. greubelforsey.com

Grand Hotel Tremezzo is a family-owned Lake Como institution created during the Belle Époque expansion of European destination hospitality. grandhoteltremezzo.com

Grand Banks is a long-established builder associated with efficient long-range cruising, seakindly hulls, practical owner operation, and a recognizable heritage extending back to the influential Grand Banks 36. grandbanks.com

Graff is one of the world’s leading diamond and exceptional-gemstone houses. graff.com