The company is founded as a trading company with an in-house manufactory in Berlin, Germany.
Kurt Dolleschel joins the company.
The company is renamed to Union Knopf Ehrich and Co.
The company is renamed again, and from now on it is called Union Knopf GmbH.
Manfred Dolleschel joins Union Knopf GmbH. The in-house production of buttons is resumed in the manufactory in Bielefeld, Germany.
PSW-Knopf GmbH is founded in Wuppertal, Germany.
Martin Dolleschel joins Union Knopf GmbH and becomes General Manager in 2009.
Union Knopf Polska Sp.z.o.o. is founded in Turek, Poland.
The separate companies merge under one roof – named Union Knopf-Gruppe.
Union Knopf (Hongkong) Ltd. is founded in Hongkong.
Union Knopf GmbH expands its business into international markets.
Jörg Dolleschel joins Union Knopf GmbH and becomes Vice General Manager in 2012.
Union Knopf (Shanghai) Ltd. is founded in Shanghai, China.
Union Knopf Turkey Ltd. is founded in Istanbul, Turkey.
Union Knopf GmbH celebrates its 100th anniversary.
Union Knopf (India) Pvt. Ltd. is founded in Bangalore, India.