RotoSub
Develops self-silencing fan technology based on patented active noise control (RotoSub ANC) for applications ranging from small cooling fans to large ventilation and aerospace systems.
- CEO / Founder
- Lars Strömbäck
- Team Size
- 1-10
- Stage
- Active
- Total Funding
- $5M
- Latest Round
- Venture Round
- Key Investors
- Crunchbase lists a funding round (approximate date Jan 1, 1970 as placeholder); no investor names publicly disclosed.
Technology & Products
Key Products
RotoSub Active Noise Control (R-ANC) technology; Self-silencing fan technology
Technological Advantage
RotoSub's core advantage is a patented active noise control approach integrated with rotating fan components, as described on its website and in Inter-Noise conference papers. The company demonstrated integration with Noctua fans at Computex. Patent protection makes the technology defensible, but no specific patent numbers are publicly disclosed.
Differentiation
Value Proposition
Reduces fan noise at the source through integrated active noise control while maintaining aerodynamic performance, minimizing the need for bulky external silencers and enabling quieter systems.
How They Differentiate
Integrated active noise control on the fan rotor, distinguishing it from passive acoustic solutions or separate electronic ANC systems.
Market & Competition
Target Customers
Fan manufacturers, consumer electronics, ventilation equipment, aerospace systems integrators
Industry Verticals
Consumer Electronics; Ventilation; Aerospace/Defense
Growth & Milestones
Growth Metrics
Included in 'Bästa Tillväxt 2025' (Best Growth 2025) list by Linköpings kommun; RocketReach estimates annual revenue of ~$5M and employee count of 1 (likely incomplete).
Major Milestones
2004: Founded in Linköping, Sweden; 2011: Presented the world's first Self Silencing Fan; 2012: Demonstrated first prototype of Noctua fan with integrated RotoSub ANC technology at Computex Taipei; 2017: Participant in NASA 'Quiet Fan Technology for Deep Space' project (TechPort project 93950)
Notable Customers
No specific named customers found; target application sectors include small cooling fans, large ventilation systems, and aerospace (per Mjärdevi business directory description).