Mitsubishi participated in Japan&s unprecedented economic growth of the 1950s and 1960s. For example, as Japan modernized its energy and materials industries, the Mitsubishi companies created Mitsubishi Petrochemical, Mitsubishi Atomic Power Industries, Mitsubishi Liquefied Petroleum Gas, and Mitsubishi Petroleum Development.

The traditional Mitsubishi emphasis on technological development was in new ventures in such fields as space development, aviation, ocean development, data communications, computers, and semiconductors. Mitsubishi companies also were active in consumer goods and services.

In 1970, Mitsubishi companies established the Mitsubishi Foundation to commemorate the centennial anniversary of the founding of the first Mitsubishi company. The companies also individually maintain charitable foundations. Mitsubishi pavilions have been highlights of expositions in Japan since the historic EXPO&70 in Osaka in 1970.

In 1999 and 2000, Mitsubishi launched a zero-percent interest advertising campaign called "zero zero in zero zero." No reference to the Mitsubishi Zero was made at the time.

As of 2007, Mitsubishi Corporation, a member of the Mitsubishi Group, is Japan&s largest general trading company (sogo shosha) with over 200 bases of operations in approximately 80 countries worldwide. Together with its over 500 group companies, Mitsubishi employs a multinational workforce of approximately 54,000 people. Mitsubishi has long been engaged in business with customers around the world in many industries, including energy, metals, machinery, chemicals, food and general merchandise.

Mitsubishi Motors reached 1.3 million cars of total production in 2007.