TPI Composites
Manufacturer of composite wind turbine blades for the wind energy market, serving major wind turbine OEMs globally.
- CEO / Founder
- William E. Siwek
- Team Size
- 5001-10000
- Stage
- Acquired
- Latest Round
- IPO
Technology & Products
Key Products
Composite wind turbine blades (30m to 80m+); precision molding and assembly systems; field services (preventative services, inspections, repairs, improvements); global service training centers.
Technological Advantage
Proprietary SCRIMP vacuum infusion process technology; model-based manufacturing (MBM) approach; precision molding and assembly systems for blades 30m to 80m+; modular tooling techniques; global replicable manufacturing processes.
Differentiation
Value Proposition
Only independent global manufacturer of composite wind blades, offering OEMs scalable, cost-competitive blade manufacturing with a global footprint and deep composites expertise.
How They Differentiate
Independent (non-OEM-owned) blade manufacturer with global scale, proprietary SCRIMP infusion technology, model-based manufacturing (MBM) approach, and deep design-for-manufacturability collaboration with customers.
Market & Competition
Target Customers
Wind turbine OEMs (Vestas, GE Vernova, Nordex, ENERCON, Siemens Gamesa)
Industry Verticals
Wind Energy (onshore); Renewable Energy
Competitors
LM Wind Power (GE Renewable Energy); Molded Fiber Glass Companies (MFG); Sinomatech Wind Power Blade Co., Ltd.
Growth & Milestones
Major Milestones
1968: Founded as Tillotson Pearson Inc. (boat builder); 2001: Entered wind blade manufacturing; 2016: IPO on NASDAQ (TPIC) at $11/share; 2024: Manufactured 6,525 blades with $1.3B net sales; Feb 2025: 100,000th wind blade manufactured; Aug 2025: Filed Chapter 11 bankruptcy; Jul 2026: Chapter 11 liquidating plan confirmed; Vestas acquired Mexico and India assets.
Notable Customers
Vestas; GE Vernova; Nordex; ENERCON; Siemens Gamesa