Xona Space Systems UK, QinetiQ, and Xona Space Systems Canada are undertaking a collaborative project to develop hardware-in-the-loop testbeds of the PULSAR PNT service. These will help to develop user equipment and to showcase the improvements the service will provide to various use cases for Automotive and Critical National Infrastructure (CNI) through enhanced positioning performance and resilience. The project, through collaboration with QinetiQ, sees the enhancement of their advanced high resilience Q40® GNSS receiver to also utilise Xona's PULSAR signals. In Canada, this work will focus on the automotive and transportation sector. The work in the UK this will focus on CNI more broadly. This project will prepare for the next stages of development and off-air testing with the launch of the first production satellite in 2025.