May 2026
Wellgarden acquires Koi-Breeder
With the acquisition of Koi-Breeder AG, Wellgarden AG is investing in an established Swiss company specialising in koi breeding, sturgeon trading, and pond and garden supplies.
Wellgarden is acquiring Koi-Breeder with effect from 1 January 2026. This marks the successful implementation of the succession plan by Mr and Mrs Wyss, the company’s founders and previous owners. The current managing director, Roger Wüst, will remain in his post, all employees will be retained, and all customer relationships and processes will continue unchanged. The property required for operations will also be sold as part of the transaction and transferred to Wellgarden.
“With the acquisition of Koi-Breeder, we are expanding our platform to include a company with an established market position and an experienced team. Koi-Breeder is a perfect fit with our focus on owner-managed specialists in the outdoor and wellness sector. We look forward to supporting the company’s further development in the long term,” says Reto Eigenmann, owner of Wellgarden.
Roger Wyss adds: “I am delighted to have found a new owner and entrepreneur in Wellgarden and Reto Eigenmann, who will continue to run Koi-Breeder at its existing location in Schinznach-Dorf. We deliberately initiated the succession planning process at an early stage – this solution secures the long-term future for employees, customers and business partners.”
About Koi-Breeder AG
Koi-Breeder, based in Schinznach-Dorf, has been operating successfully in the Swiss market for over 20 years. Roger Wyss laid the foundations in 2002 with the first koi breeding facility and incorporated the company as Koi-Breeder AG in 2008. Roger Wüst has been managing the business since 2019. During this time, the range of pond and garden supplies has been continuously expanded, turnover has increased and profitability has improved. Today, renowned customers from the horticultural sector, as well as koi and sturgeon enthusiasts, are supplied directly with high-quality fish, pond and garden accessories throughout Switzerland.
More information: www.koi-breeder.ch
About Wellgarden AG
Wellgarden AG is a long-term investment platform for owner-managed specialist retailers. Its focus is on the sectors of swimming pools, ponds, hot tubs, shading, saunas, fencing and garden structures in Switzerland, Germany, Austria, the Benelux countries and France. Wellgarden sees itself as a reliable partner for entrepreneurs facing succession planning. Established structures, brands and teams are retained, and the acquired companies are specifically strengthened in their long-term development.
More information: www.wellgarden.net
Role of Ramus & Company
Ramus & Company supported and advised Koi-Breeder and the sellers as part of an exclusive sell-side mandate throughout all phases of the M&A process until the successful completion of the succession arrangement.