During the mid-1970s he started his career in shipping by taking control of the small family fishing company along with his brother.

[19] In January 2021, Thanasis Laskaridis sold his majority stake in Lavinia Corporation, reorganizing the family's asset holdings.

Laskaridis has also donated to the London School of Economics in support of the Hellenic Observatory, where he sits on the Advisory Board.

[38][39][40][41] The mayor of Athens, Giorgos Kaminis, unveiled a plaque in his honour in September 2018, for Laskaridis' contribution to the square.

[45] As part of these efforts, in 2019 the MV Typhoon, a former platform supply vessel that was converted into a special purpose ship, began operations in the Greek seas with the aim of contributing to the large scale clean-up of the coastline, as well as to research of coastal and in-water marine pollution, in cooperation with universities and research institutions.