None
An organization that customizes (e.g., combines, adds, optimizes) components, systems, and corresponding processes. The integrator function can also be performed by acquirer.
Source(s):
NIST SP 800-161
NISTIR 7622 - Adapted
Those organizations that provide customized services to the acquirer including custom development, test, operations, and maintenance.
Source(s):
NIST SP 800-161