2026 ANS Winter Conference & Expo

The 2026 ANS Winter Conference & Expo, hosted by the American Nuclear Society November 15-18, 2026 at the Arizona Grand Resort & Spa in Phoenix, carries the theme "Going Critical: Creating a Durable Nuclear Resurgence." The meeting embeds three topical conferences — Advances in Thermal Hydraulics (ATH 2026), Advanced Reactor Safety (ARS 2026), and the International Conference on Advances in Nuclear Power Plants (ICAPP 2026) — alongside the expo floor and plenary programming. ANS reports that over 25% of attendees are senior decision-makers including C-suite executives and VPs with budget authority, with roughly 32% students and early-career professionals, making it both a technical and a recruiting venue. For advanced reactor, SMR, fuel cycle, and nuclear supply chain startups, it is where licensing strategy, utility offtake conversations, and national lab collaborations get advanced with the technical community that ultimately validates the designs.