Castheon
Provides vertically integrated metal additive manufacturing and CNC machining services specializing in refractory metals for aerospace and defense applications.
- CEO / Founder
- Dr. Youping Gao
- Team Size
- 11-50
- Stage
- Active
- Total Funding
- Undisclosed
- Latest Round
- Acquired - Undisclosed - January 2022
- Key Investors
- ADDMAN Engineering; American Industrial Partners; GE Capital
Technology & Products
Key Products
Metal 3D printing; CNC precision machining; Reaction control system (RCS) thrusters; Rocket engine components; Post-processing services
Technological Advantage
Vertically integrated manufacturing footprint with 24+ AM machines and 100+ CNC machines across 6 US facilities, enabling end-to-end production of mission-critical components.
Differentiation
Value Proposition
Offers a vertically integrated 'concept to production' model that reduces lead times for complex refractory metal components, such as rocket engines, by combining advanced AM with extensive subtractive machining capacity.
How They Differentiate
Positioned as the leader in Hypersonics with a unified national footprint and a scalable approach to improving material properties for extreme-environment applications.
Market & Competition
Target Customers
Aerospace, defense, space, and medical device manufacturers.
Industry Verticals
Aerospace; Defense; Space; Medical; Industrial; Motorsports
Competitors
Sintavia; Morf3D; H.C. Starck Solutions
Growth & Milestones
Growth Metrics
Grew from team of one to over 500 staff members; 24+ additive machines and 100+ traditional subtractive machines across 177,000 square feet.
Major Milestones
2016: Castheon founded by Dr. Youping Gao; 2020: ADDMAN Engineering founded by Mark Saberton; 2021: Acquired Castheon; 2022: Acquired 3rd Dimension Industrial 3D Printing and Domaille Engineering; 2024: Acquired Keselowski Advanced Manufacturing (KAM); 2025: Unified brands under ADDMAN and opened Fort Myers HQ
Notable Customers
NASA