| 1939 |
Sten A Olsson starts trading in steel, iron, scrap metal and metal products (the basis for the current Stena Metall) |
| 1946 |
First cargo vessel in operation |
| 1962 |
First ferry route to Denmark. Skagen route established |
| 1963 |
Stena Line founded and Stena's characteristic logo born |
| 1967 |
Ferry traffic expands with Göteborg-Kiel route |
1972
|
The terminal at Masthuggskajen is completed
The business is divided into three: Shipping, Ferry lines and Scrap metal |
| 1976 |
First offshore vessel delivered |
| 1977 |
Eleven RoRo vessels delivered from South Korea |
| 1980 |
Merger between Stena Line and Sessanlinjen |
| 1981 |
Stena Fastigheter founded |
| 1982 |
Stena Bulk founded |
| 1983 |
In-house management company, Northern Marine Management, founded in Glasgow |
| 1984 |
First drilling rig delivered. Concordia Maritime founded |
| 1988 |
Stena Line listed on stock exchange |
| 1989 |
Sealink acquired |
| 1994 |
Merger between Stena Offshore and Coflexip |
| 1995 |
Stena Drilling acquires Atlantic Drilling |
| 2000 |
Holding sold in Coflexip |
| 2001 |
Stena Line becomes wholly-owned |
| 2002 |
Stena Adactum founded |
| 2003 |
Stena Fastigheter acquires Drott |
| 2005 |
Stena DrillMAX I ordered |
| 2006 |
Stena Long Term Equity founded |