"cooperating companies" is correct and usable in written English.
You can use it when referring to two or more businesses that are working together towards a common goal. For example, "The cooperating companies are launching a new product line in the coming weeks."
He is said to have hidden it using fake transactions with cooperating companies.
Reciprocity and substantiality do not require that the cooperating companies be of equal size and stature.
"Additionally, the leaked documents make clear that companies have been complicit in allowing this unprecedented spying to take place, though the identities of cooperating companies remain unknown".
The methods of CGT may be adopted for allocating the cost saving to cooperating companies.
By cooperating, companies can better ensure that each request is valid, and narrow enough in its scope.
The innovation process of the 'fifth generation' is based on the 'chain-linked' model and adds a strategic component the integration of cooperating companies, the growing importance of information and communication technologies and the use of expert systems and networks (Rothwell 1992).
The data in our case are from the actual production plant and were confirmed by the management of the cooperating company.
His argument is that cooperating helps companies by nurturing economic health in the markets where they do business.
Ms. Chao said unions had misunderstood her enforcement strategy, which she calls "compliance assistance" and which involves cooperating with companies.
(And note well the absolution after-the-fact bestowed upon cooperating telecommunications companies).
He said unions had agreed to cooperate with companies to help them cut costs and restructure to make them more competitive.
