SMR Engineering Firm
Spun Off from KAERI
The fastest-growing team in the nuclear industry. An engineering partner for SMR developers.
Fabless Company in
Nuclear Industry
RX Inc. is a next-generation nuclear engineering firm founded in 2023 by key engineers from the Korea Atomic Energy Research Institute (KAERI).
With team members from Conventional Nuclear EPC, we possess comprehensive expertise spanning the full scope of SMR design, analysis, testing, and licensing — built on design and licensing experience from the large-scale NPP through SMART and i-SMR.
Like NVIDIA in the semiconductor industry — a nuclear fabless company creating value through design and IP licensing is RX's business model.
Our Direction
We pursue automation technology and engineering capabilities that precisely accelerate nuclear design and licensing operations
Mission
Global Licensor in SMR Design & Licensing
Combining proven reactor design technology with AI-based licensing automation to become the core design partner for SMR projects worldwide.
Vision
Structurally Reducing SMR Cost & Timeline
Through proprietary reactor design and AI-based licensing automation, enabling nuclear plants needed for the energy transition to become reality faster.
Three Strategic Pillars
01
Design Excellence
Making design quality and engineering completeness our core competitive edge, combining KAERI's decades of experience with cutting-edge technology.
02
Licensing Automation
Automating repetitive licensing tasks to simultaneously improve speed and accuracy. Reducing lead time through automated regulatory mapping and document drafting.
03
Economics-First Delivery
Delivering not just good technology, but in a way that makes business sense. Solving SMR's biggest challenge — economics — from the design stage.
Our Journey
From a KAERI-backed startup to an execution partner for next-generation nuclear engineering.
Major Certifications
Venture Company Certification
Nuclear Power Company Certification
(Korea Nuclear Industry Association)
Core Company of Korea Atomic Energy Research Institute
2026
– Raised Pre-A Investment
2025
– Participated in KHNP K-Cloud Project
– Participating in i-SMR Development Project
– Participating in KAERI SMR Technology Development Project
– Selected for AI Global Big Tech Program (Ministry of Science and ICT)
– Received Minister's Award from Ministry of SMEs and Startups
2024
– Selected for the Ministry of SMEs and Startups DIPS 1000+ Program
– Secured Seed Investment
– Selected for Deep Tech TIPS (Next-generation nuclear power)
2023
– Founded as a KAERI startup
– Selected for KEPCO KPS Startup Support Program (2023–2025)
Our Partners
Partners





















