Among Schirmer's later works are the designs of churches in Øksendal (1864), Fiskum (1866, burned 1902), Ulstein (1877) and Vartdal (1877).
During the 1980s the company acquired businesses in the Automotive Engineering sector (principally Rolls-Royce Motors), the Defence sector (principally Royal Ordnance Factory Leeds) and the Marine Engineering sector (principally Kamewa and Ulstein).
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In 1986, it purchased Kamewa a Swedish manufacturer of waterjets, followed in 1998 by Ulstein (Norway), a major marine propulsion and engineering company.
He also succeeded Idar Ulstein as chairman of the board in Ulstein Verft, Ulstein Propeller, Ulstein Bergen and Ulstein Brattvaag.
Eika, Møre og Romsdal, an island in Ulstein municipality, Møre og Romsdal, Norway
The former Belga Marine of Rio de Janeiro, Brazil was acquired by Ulstein Group AS and renamed Ulstein Belga Marine It provides electrical and control systems for the large offshore and merchant market in Brazil.