The association is a voluntary association of legal entities or individuals to achieve economic, scientific, cultural or any other purpose (usually non-profit).
The company should be large and have a complex structure to perform a large number of diverse operations for the development, production, and delivery of a complex product to the customers.
The company should be small and have a simple structure in order to:
Ivanova T., Prikhodko V. Theory of Organization. M: Knorus, 2010.