Ultra Safe Nuclear Corporation, a U.S. corporation headquartered in Seattle, is a global leader and vertical integrator of nuclear technologies and services, on Earth and in Space. Major initiatives include the Micro Modular Reactor (MMR®), Fully Ceramic Micro-encapsulated (FCM®) nuclear fuel, and nuclear power and propulsion technologies for space exploration. The company is demonstrating MMR Energy Systems at the Canadian Nuclear Laboratories with Ontario Power Generation and at the University of Illinois at Urbana-Champaign. New deployment projects underway in the United States, Canada, and Europe.

Ultra Safe Nuclear is committed to bringing safe, commercially competitive, clean and reliable nuclear energy to global power and industrial markets. Ultra Safe Nuclear is working with NASA and the Defense Department on advanced radioisotope power, nuclear thermal propulsion systems and advanced materials using the same strict inherent and intrinsic safety principles to drive innovation in fuels, materials, and design.

Ultra Safe Nuclear is the only private company producing TRISO and FCM fuel. This is enabling the transformation of key power and industrial sectors.


Develop, deploy and vertically integrate nuclear energy solutions, inclusive of hardware, fuel, execution and operational know how, that are safe and commercially competitive.


Reliable Zero-Carbon Energy Anywhere


We will engage with and support our employees, contractors, vendors, clients, business partners, and our host communities to uphold and embrace these values:

  • Safety: protect the public, our people and the environment from harm from our activities or products. 
  • Quality: develop a superior product that meets the requirements of our clients and communities. 
  • Efficiency: build on experience and use the latest technological tools to create value and deliver the best products and outcomes.
  • Character: treat each other with fairness, respect, care and honesty.
  • Cooperation: excel individually and together in everything we do. We will achieve greatness through cooperation.


Ultra Safe Nuclear's 250+ employees operate in three divisions.

Core Division

Safety Matters. Core Division develops materials and fuels designed and manufactured at scale.

Power Division

Ready to Build. Power Division is developing commercial-grade, zero-carbon, zero-risk Energy Systems for power and heat utilization - on or off-grid.

Tech Division

No Limits. Tech division develops advanced systems and technology targeting space applications for commercial and government customers.

Our People

Board of Directors
Richard Hollis Helms

Francesco Venneri

Francesco Venneri

CEO & Founder

Kelsey Souza


Dan Stout

Chief Nuclear Officer

Roland Backhaus

eVP of Strategic Engagements

Alexander Superfin

Senior VP Project Development

Vladimir Novak

Chief Commercial Officer

Bret van den Akker

Director of Fuel Cycle Innovation

Chris Carson


Ritesh Budree

eVP of Finance

Aaron Selby

Corporate Project Manager

Cristian Rabiti

VP of Business Development, U.S.

Steve Cuevas

eVP of Legal Affairs/General Counsel

Mary Woollen

Director Stakeholder Engagement

Brian Meeley

VP Communications and Marketing

Core Division
Kurt Terrani


Michael Trammell

Director - Additive Manufacturing

Brent Hamilton

Quality and Systems Manager

Donald "Gus" Gustavson

Business Operations Manager

Mitchell Meyer

Director - Fuel Qualification and Testing

Benjamin Watson

Environmental Health and Safety Manager

Barry Spencer

Director - Uranium Processing

Brian Jolly

Director - Chemical Vapor Processing

Charles Lewinsohn

Director - Materials Technology and Manufacturing

Brian Ade

Fuel Design Manager

Tech Division
Paolo Venneri


Michael Eades

Chief Engineer

Adam Schilffarth

Senior Director of Strategy

Wesley Deason

Surface Fission Power Lead

Roger Myers

Senior Advisor

Gavin Garside

Materials Lead

Ethan Chaleff

Nuclear Thermal Propulsion Lead

Christopher Morrison

EmberCore Lead

Vishal Patel

Analysis Lead

John Pula

Hardware Systems Functional Lead

Kevin Green

Industrial Security Manager

Kelly Kennedy

Quality Lead

Power Division
Mark Mitchell


Schalk Prinsloo

Director - Commercial

Jan van Ravenswaay

Director - Hydrogen

Pieter Venter

Senior Director - MMR Technology

Matthew Richards

Senior Technical Advisor

Sharon Sanders

Director - Quality Management System

Niel Kemp

Senior Director - MMR Projects

Pam Apps

Senior Director - Operations

Mark Davies

Senior Director - Fuel Qualification

Won Jae Lee

Director - Core Design

Frederik Reitsma

Director - Analysis

Jaco Lindeboom

Director - Production

Kwabena Shange

Director - Portfolio Management


Ultra Safe Nuclear Corporation and Hyundai Engineering Extend Collaboration to Advance Micro Modular Reactors

Under the Framework Agreement, HEC will bring its vast supplier network to support procurement of materials and services to Ultra Safe Nuclear’s modular micro reactor (MMR™) based projects globally.

Ultra Safe Nuclear Corporation Announces the Opening of Pilot Fuel Manufacturing Facility in Oak Ridge, Tenn.

New manufacturing pilot plant to produce FCM® fuel for qualification for U.S. advanced micro reactors. Production-scale radiological manufacturing line includes advanced manufacturing process licensed from ORNL.

Ultra Safe Nuclear Selected to Develop High Delta-V Nuclear Small Spacecraft Prototype

Ultra Safe Nuclear will develop a concept for radioisotope-powered spacecraft with greater than 10 km/s of delta-V, many times greater than today’s small spacecraft propulsion systems.

Deployment Partner and Investor

Collaborators for MMR

USNC is a Global Team

Seattle, Washington

Global Head Office

Salt Lake City, Utah

Next Generation Fuel and Moderator Development

Ottawa, Canada

Demonstration Project
and Market Development

Chalk River, Canada

1st Demonstration Project

Oak Ridge, Tennessee

Mass Manufacturing Technologies for Fuels and Materials

Manchester, UK

UK Market, AMR Program

Paris, France

European Market


European Market

Pretoria, South Africa

Power Plant Engineering

Daejeon, South Korea

MMR® Power Plant Design