A managed security service provider (MSSP) provides outsourced monitoring and management of security devices and systems. Common services include managed firewall, intrusion detection, virtual private network, vulnerability scanning, incident response, and penetration testing.

An IT managed service provider (IT MSP), also known as a managed IT services provider, manages and assumes responsibility for providing a defined set of services to its clients. IT MSPs are a convenient way to outsource your networking and help desk. IT MSPs overlap to some degree with the services MSSPs provide. IT MSPs normally focus more on networking and workstation management, but they also provide security services like managed enterprise detection response (EDR) and email security.

Cloud digital transformation service providers focus on leveraging DevSecOps for cloud-based deployments. Some of their services overlap with IT MSPs and MSSPs.

Third-party audit service providers assist businesses with navigating the complexities of building an in-house audit competency. Third-party audit services providers perform gap assessments and provide guidance on compliance for regulated industries.