After graduating from Chuo University in 1953,[3] Osamu started his career as a loan officer at a local bank.

He worked through various positions including junior management posts and eventually rose to the rank of director in 1963.

Rather than directly competing with established automakers, Suzuki focused on expanding the company by identifying and targeting new markets for its small cars.

During his initial two terms as President (1978 to 2000), Suzuki oversaw the company's achievement of a substantial market share in India.

[12] His strategy included identifying potential markets worldwide for affordable vehicles and utilizing diplomatic efforts to establish a presence through alliances.

By 1993, Suzuki was responsible for 3 out of 4 cars sold in India and 2 out of 3 in Pakistan, selling more vehicles than any other Japanese manufacturer.

The next year saw Suzuki becoming the largest small car manufacturer in Japan, the two-wheeler division—the third behind Honda and Yamaha—and the outboard engine division making rapid strides.

[7][13] Osamu Suzuki led the formation of a capital alliance with competitor Toyota Motor Corp in 2019 in a bid to partner in the development of self-driving vehicles.

[6][17] Instead, he looked out for unexplored markets with small but modern cars which changed the automobile trends in the countries he entered.