nextbike is a German company that develops and operates public bike-sharing systems. The company was founded in Leipzig, Germany, in 2004. As of June 2024, it operates in cities of 20 countries including Germany, UK, Poland, Croatia, the Czech Republic, Austria and Switzerland. The headquarters with about 100 employees are based in Leipzig. The bicycles and stations are maintained by local service partners. Since 2021, nextbike GmbH has been a wholly owned subsidiary of TIER Mobility. As part of the merger, nextbike turned into the joint brand nextbike by TIER.