9 September 2025
Markham, ON – Assystem, the world’s third largest independent nuclear engineering company today announced the signing of a Memorandum of Understanding (MoU) with PTAG (“PTAG”). Assystem is recognized globally for supporting marquee clients, delivering owner engineering services across nuclear new build projects (large power and SMR/AMR), decommissioning, and waste management and fuel programs. PTAG is a trusted provider of capital program and project management services to major North American energy utilities, nuclear waste management organizations, and small modular reactor (SMR) early adopters.
The MoU establishes a framework for joint delivery of complex nuclear projects and programs in Canada and the United States, spanning new build, refurbishment, decommissioning, fueling and waste management initiatives. The partnership combines PTAG’s execution expertise with Assystem’s global nuclear engineering credentials, providing an integrated offering that supports clients through the full lifecycle of nuclear projects.
This agreement reflects our commitment to supporting utilities and operators with solutions that deliver predictability and performance on their most complex programs. By aligning PTAG’s North American local project delivery expertise with Assystem’s global track record, we are equipping the industry to address both the growth of clean baseload energy and the responsible stewardship of nuclear waste.
Assystem has decades of experience supporting the world’s largest nuclear programs. Together with PTAG, we are creating a partnership that brings international best practices and advanced engineering capabilities to North American markets, ensuring utilities and governments have the tools they need to meet net-zero and energy security goals.
Advancing the Energy Transition
The collaboration comes at a pivotal time as North America accelerates investment in new nuclear generation and nuclear waste management infrastructure. The agreement positions PTAG and Assystem to support clients on major initiatives including new build programs, both large power and SMR/AMR, refurbishment of existing fleets, and long-term waste strategies critical to public trust and regulatory compliance.
Trusted Track Record
- PTAG: A long-standing partner to leading North American energy utilities and nuclear agencies, PTAG has delivered project advisory and management services across power generation, transmission, and heavy infrastructure for over 15 years. PTAG is recognized for its Advanced Project Delivery platform, strengthened by the acquisition of Construct-X, which integrates Lean methodologies and digital tools to improve performance and predictability.
- Assystem: For about 60 years Assystem has supported governments and operators with the delivery of their nuclear programs. With 8000 experts in 13 countries, Assystem is now entering the North American markets to support the strong nuclear ambitions of Canada and the USA. As the third largest independent nuclear engineering in the world, Assystem has provided owner engineering services to more than 10 new build programs over the world in the last decade.