| 1949 | Founded as NORWAG-Werke GmbH in Witten Germany |
| 1949-1951 | Production of metal working oil, putty and waxes |
| 1950 | Changed the company’s name to ARDEX Chemie GmbH |
| 1954 | Launch of ARDUR floor filler |
| 1957 | ARDEX NOVAL S.A. was founded in France |
| 1959 | New construction of factory building 1 and the first silo |
| 1960 | ARDEX UK Ltd was founded in Haverhill, England |
| 1961 | ARDUPLAN 2026 – the first wall filler |
| 1962 | Launch of ARDIT Z 8 – world’s first quick drying cementitious floor filler |
| 1967 | Group company ARDEX SKANDINAVIA was founded in Hellerup, Denmark |
| 1968 | Launch of ARDURIT X 7 G – which is still thestate-of-the-art, thin-bed mortar today. ARDEX Baustoff GmbH was founded in Loosdorf, Austria |
| 1969 | Launch of ARDUCRET B 12 concretefiller and launch of MASTIT K 10 |
| 1975 | Launch of ARDURAPID 77 a floor filler which is coatable within 1 hour |
| 1976 | Launch of K15 – the universal industry benchmark in levelling compounds |
| 1978 | ARDEX Inc. was founded in Pittsburgh, USA |
| 1980 | Launch of “WITTENER SCHNELLZEMENT 32,5 R-SF” |
| 1982 | Opening of new training and development centre in Witten |
| 1992 | Certification according to DIN ISO 9002 |
| 1993 | The Witten Factory II was commissioned |
| 1995 | Takeover of the ARKI trading company in Sweden which was market leader in ARDEX products |
| 1996-1997 | Launch of several flooring adhesives as a system with the ARDEX floor fillers |
| 1998 | Launch of the powder parquet adhesive ARDEX P410. ARDEX Polska Sp. z o.o. and ARDEX CEMENTO S.A. were founded |
| 1999 | Launch of the tile adhesives ARDURIT X 5 and ARDURIT X 7 G Plus |
| 2000 | Acquisition of the W.W. Henry Company |
| 2001 | Foundation of ARDEX OY, Finland |
| 2001 | Acquisition of NORCROS ADHESIVES Limited and Norcros Building Products Pty, which includes locations in South-East Asia, China and the Pacific rim |
| 2002 | PANDOMO decorative floor launched |
| 2005 | Acquisition of LUGATO GmbH & Co. KG. Foundation of ARDEX MIDDLE EAST FZE, Dubai |
| 2007 | ARDEX Korea Inc. was founded. |
| 2009 | State-of-the-art mixing equipment was commissioned in Witten |
| 2011 | Commissioning of the new production site of ARDEX Turkey in Tuzla (near Istanbul) Acquisition of Seire Products S.L., Madrid |
| 2012 | ARDEX acquires a majority stake in QUICSEAL Construction Chemicals in Asia |
| 2013 | ARDEX acquires a majority stake in CEMIX Limited in New Zealand |

