Stefan Tidow, born in Hanover in 1967, studied political science, economics and education at the Philipps University of Marburg. From 1997 to 1999 he was a research assistant at the Institute for Political Science there.

Since 2000 he has worked in Berlin politics, first as a research assistant to the European policy spokesperson of the Green parliamentary group in the Bundestag, Christian Sterzing, then for the federal executive of Alliance 90/The Greens as head of the office of chairwoman Claudia Roth. In 2003, he moved to the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety, where he worked in the minister's office and in the policy unit "Environment and Economy".

From 2008 to 2011, Stefan Tidow worked in the Bundestag parliamentary group of Alliance 90/The Greens, first as scientific coordinator in the Executive Committee, and from 2009 as office manager of the parliamentary group leader Jürgen Trittin.

From 2012 to 2016, Stefan Tidow headed the representation of the state of Rhineland-Palatinate at the federal level and at the European Union as permanent representative of the state's plenipotentiaries. From December 2016 to December 2021, he was State Secretary for the Environment and Climate Protection in the Senate Department for the Environment, Transport and Climate Protection of the State of Berlin.

When the new Federal Government was sworn in, Stefan Tidow moved to the Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection as State Secretary.

He lives with his family in Berlin.