Consortium (noun)

1. An association, typically of several companies.
2. A group of individuals or organizations with a common interest.

Origin:

From latin consortium ('partnership, association, community of goods'), from consors ('partner'), from con- ('together') + sors ('a sharer').

Examples:

1. The consortium of tech companies is working on developing new software.
2. The university is part of a consortium of colleges and universities that share resources and expertise.
3. The consortium of donors pledged to support the humanitarian relief efforts.