This two-volume set, IFIP AICT 770-771, constitutes the refereed proceedings of the 26th IFIP WG 5.5 SOCOLNET Working Conference on Virtual Enterprises on Hybrid Human-AI Collaborative Networks, PRO-VE 2025, held in Porto, Portugal, during October 27-29, 2025.  The 60 full papers were carefully reviewed and selected from 126 submissions. These papers are organized around the following main topics: ·         Society 5.0,  AI as a driver for Collaboration, Collaborative Risk and Crisis Management, AI for Logistics and Supply Chain, Technologies for Adaptable Collaborative Networks,  People-Centered and AI-driven Processes,  Multi-agent Systems for Hybrid Human-AI Collaboration, Collaborative Healthcare Networks, Human-Robot Collaboration, Collaborative Workspaces, Transition towards Collaborative Organizations 5.0, Trust and Trustworthiness in Hybrid Human-AI Collaboration, AI-driven Manufacture-as-a-Service, AI and Simulation-supported Decision-Making, Work Sharing in Human-AI Collaboration, Collaboration in Sustainability.