One of the key guiding principles of the CVRG is that we don’t “re-invent the wheel”. We re-use and extend software from other grid projects whenever possible, focusing on development of CV-specific resources. To do this, we have formed Collaborating Technology Projects (CTPs) focused on joint, mutually beneficial technology development with the CVRG team. There are currently six CTPs. The rapid addition of new CTPs demonstrates that we are well integrated into the technology development community, and that we are leveraging these collaborations so that technology development extends far beyond the initial CVRG team.