1860
Johann Keller established a Keller company in Renchen, southern Germany.
1995
Opening of the Keller Polska office in Gdynia
15.02.1996
Keller Polska memorandum of association
1999
- Opening of the Keller Polska office in Kraków
- Implementation of Soilcrete - TS and Soilcrete - DS.
2000
The use of Soilcrete - DS technology with columns> 3.5 m in diameter for horizontal sealing of the excavation bottom. The use of DSM technology in foundation engineering (Poland).
2003
Opening of the Keller Polska office in Ożarów Mazowiecki
2004
Opening of the Keller Polska office in Poznań
2005
- Opening of the Keller Polska office in Wrocław
- Implementation of the DSM double mixing system (Poland)
2006
- Diaphragm walls technology implementation (Poland)
- Keller Polska received the Euro Leader award
2007
Keller Polska received the Tytan award
2015
Changing the location of the office in Kraków
2016
- 20th anniversary of Keller Polska
- Keller Polska received the title of the best employer according to AON
- Keller Polska rebranding
2017
- Keller Polska- the best Business Unit of the Keller Group in the world
- Opening of the Keller Polska office in Szczecin
- 10th anniversary of the Diaphragm Walls branch
2018
- Modernization and opening of a new part of the Keller Polska office in Ożarów Mazowiecki
- The North branch changed its long-term headquarters in Gdynia to a new office in Gdańsk
- The first realisation of Keller Polska in mass mixing technology
- Tytan award for the the Warsaw HUB- Diaphargm walls branch project
2019
Keller Polska began operations in the Baltic States