A. Lange & Söhne is a luxury watch manufacturer in Glashütte, Germany, currently one of the Specialist Watchmakers of Richemont.

As the industry of silver mining in Glashütte dried up, the inhabitants turned to the Saxony state government with the urgent request for support. Ferdinand Adolph Lange created the first watchmaking jobs in Glashütte with the help of a state loan on 7 December 1845, starting a clock company.