There were a variety of presentations in VMworld around solution extensibility of vRealize Operations and vRealize Orchestrator. The following presentations give great detail around extensibility and have many examples of both VMware and Partner integrations.
Operational Management Challenges for Converged Infrastructure from Virtualization and Cloud Management Solutions
The Age of Network Operations Management in Software Defined Data Centers from Virtualization and Cloud Management Solutions
For more information on building extensions to the suite of vRealize products, please go to the Developer Center. See see all the solutions available from VMware and our partners, please go the Solution Exchange.