Ader Entreprises & Patrimoine

As the first auction house specializing in the corporate market, ADER E&P was founded in 2019 based on a simple observation: over time, companies and institutions accumulate numerous assets that are undervalued.

Designer furniture, archival pieces, collectibles, documents, production tools, obsolete professional equipment, artworks, and decorative elements—these assets, often forgotten, bulky, and costly to store, hold real value and attract a wide range of auction buyers.

ADER E&P turns a logistical challenge into an opportunity. Our team visits warehouses and offices to appraise each item. Our auctions bring together enthusiasts, employees, and clients, uniting them around the story of a little-known corporate heritage. Auction results sometimes exceed all expectations.

These events also offer a unique opportunity to signal the start of a new era while honoring long-standing values. After all, these objects are powerful vessels of memory; they bear witness to the evolution of a profession, a passion, employee craftsmanship, or the changing nature of a business.

Giving these items new value means celebrating the unique culture of each company or institution.

In March 2024, ADER E&P became a *société à mission* (mission-driven company). Introduced by the PACTE Law of May 22, 2019, this status allows a company to publicly declare its corporate purpose through specific social and environmental objectives.