- 1966 : Jan Bartels launches its first cleanroom service operation in the Netherlands
- 1982 : Establishment of basan GmbH in Germany and of basan B.V., The Netherlands
- 1989 : Establishment of basan BVBA in Belgium
- 1990 : Establishment of strategic partnership in Switzerland
- 1990 : Own Cleanroom at basan B.V. to support customer requirements on a contracted service basis and for continuous development surposes
- 1993 : ISO 9001:2000 certification for basan B.V. and basan GmbH
- 1996 : First basan full service cleanroom contract with key account
- 1999 : Establishment of initial strategic partnership in Singapore
- 2002 : Introduction of SAP R/3 (ERP*-System) at basan GmbH
- 2003 : Establishment of basan UK Ltd. in the UK as a 100% subsidiary 2003 : World Class Global Foundries (former AMD) Supplier Award
2003 : First SAP-based paperless and seamless system
2003 : Integration Solution with key account - 2004 : Lauch of basan's initiative towards the Life Science sector
2004 : Definition of basan's Life Science Strategy - 2006 Acquisition of basan B.V and basan BVBA by basan Germany
2006 : Development and launch of basan's own Quantus® garment range - 2007 : basan celebrates 25 year anniversary
2007 : basan acquires the cleanroom consumables and garment manufacturing business from Metron Technology Inc. in Belgium, France, Germany, Ireland, Italy, The Netherlands, UK, Malaysia and Singapore.
2007 : Establishment of own basan subsidiaries in France, Italy, Malaysia and Singapore
2007 : New partnerships in Greece and Turkey - 2008 : Expansion of service range to include cleanroom operator training programs and services
2008 : Absorption of acquired Metron business into basan's local subsidiaries
2008 : basan subsidiary opened in Vietnam - 2009 : License agreement with partner in the Republic of South Africa
- 2010 : Launch of exclusive distribution operations for Entegris in Europe