2015 Tunga Lyft i Sverige AB is acquired by Storskogen.
In november 2006, Tunga Lyft i Sverige AB is founded as a fully independent company, specialized in heavy goods handling and advanced industry type lifting.
2001 Kynningsrud acquired Rallings contracting department which then became Tunga Lyft.
1995 Ralling AB acquired RMS resmastsystem in Skövde.
In 1972, Skånska cementgjuteriet, now known as Skanska AB, acquires AB Jan Ralling which then shall belong to Skanska Prefab. The company name is changed to Ralling AB
In the end of the 60's AB Jan Ralling acquires Grävningsbolaget.
CONCRETE HIGHWAY MALMÖ - LUND
During 1953, the company was participating in the production of the first concrete highway between Malmö and Lund.
THE FOUNDING OF GRÄVNINGSBOLAGET
In the middle of the 40's, Grävningsbolaget was founded.