• 1911

    The company is founded as a trading company with an in-house manufactory in Berlin, Germany.

  • 1918

    Kurt Dolleschel joins the company.

  • 1938

    The company is renamed to Union Knopf Ehrich and Co.

  • 1950

    The company is renamed again, and from now on it is called Union Knopf GmbH.

  • 1959

    Manfred Dolleschel joins Union Knopf GmbH. The in-house production of buttons is resumed in the manufactory in Bielefeld, Germany.

  • 1971

    PSW-Knopf GmbH is founded in Wuppertal, Germany.

  • 1988

    Martin Dolleschel joins Union Knopf GmbH and becomes General Manager in 2009.

  • 1996

    Union Knopf Polska Sp.z.o.o. is founded in Turek, Poland.

  • 1997

    The separate companies merge under one roof – named Union Knopf-Gruppe.

  • 1999

    Union Knopf (Hongkong) Ltd. is founded in Hongkong.

  • 2001

    Union Knopf GmbH expands its business into international markets.

  • 2003

    Jörg Dolleschel joins Union Knopf GmbH and becomes Vice General Manager in 2012.

  • 2004

    Union Knopf (Shanghai) Ltd. is founded in Shanghai, China.

  • 2010

    Union Knopf Turkey Ltd. is founded in Istanbul, Turkey.

  • 2011

    Union Knopf GmbH celebrates its 100th anniversary.

  • 2012

    Union Knopf (India) Pvt. Ltd. is founded in Bangalore, India.