no not yet never
Group of companies is grammatically correct.
The legal status for a group of companies is that it is called a corporate group.
Name of the tata group of companies
The population of Guingon Group of Companies is 120.
Guingon Group of Companies was created in 2000.
Lopez Group of Companies was created in 1928.
Corinthia Group of Companies was created in 1960.
The population of The Crane Group Companies is 1,300.
The Crane Group Companies was created in 1947.
Asif Group of Companies was created in 1962.
Paragon Group of Companies was created in 1985.
Vardhman Group of Companies was created in 1965.