Case Study: Keller Sports achieves expansion to 10+ European marketplaces and a 7% revenue boost with Lengow

How Keller Sports succeeded on european marketplaces with Lengow

Keller Sports, a leading online sportswear retailer, wanted to evaluate the reach of European marketplaces for older and non‑exclusive products but lacked a streamlined process to onboard multiple channels. To simplify and accelerate this effort they partnered with Lengow, using the Lengow e‑commerce automation platform to manage listings, stock and order synchronization across marketplaces.

Lengow helped Keller Sports go live within a month (June–July 2016), launching on +10 new channels including Amazon DE/UK/ES/FR, C‑Discount, Rakuten Germany and Priceminister; the team—Marketing, Logistics and Customer Care—now configures channels independently within hours. The project delivered measurable impact: +7% revenue on the tested assortment and +5% margin, while removing heavy IT dependency for future marketplace expansion.

Keller Sports

André Patrzek

Director Marketing & Sales