Together with Alexander Ohlsen, Johan Pettersson found Landskrona Nya Mekaniska Verkstad.
The main products were railway carriages, farming equipment, foundry products etc.
1885 Johan Pettersson bacame ill and did not recover. The company was taken over by his sons, Johan Edvard and Olof.
The company was restructured as a joint stock company under the name of Landskrona Nya Mekaniska Verkstads AB.