Sharrow Engineering
Manufactures the patented Sharrow Propeller, a high-performance marine propeller, using advanced 3D sand-casting technology to enable rapid, on-demand production.
- CEO / Founder
- Greg Sharrow
- Team Size
- 51-200
- Stage
- Growth Stage
- Total Funding
- $30M
- Latest Round
- Venture Round
- Key Investors
- Family offices of John H. McFadden and others
Technology & Products
Key Products
Sharrow Propeller; Sharrow MX Propeller line; Sharrow by VEEM inboard propeller
Technological Advantage
Proprietary 3D sand-casting workflow developed in collaboration with Ford Motor Company's Advanced Industrial Technology & Platforms team, leveraging Ford's 20+ years of expertise. This bypasses traditional tooling, slashing lead times by over 85% (130 days to ~14 days) and enabling rapid design iteration for complex geometries.
Differentiation
Value Proposition
Reduces propeller production lead time from up to 130 days with traditional investment casting to approximately 2 weeks using a 3D printed sand-casting workflow, enabling faster iteration and scaling to meet surging demand.
How They Differentiate
Competes against traditional marine propeller manufacturers (e.g., Mercury Marine, Brunswick Corporation's propulsion segments) on performance and lead time, not on AM technology. Its primary differentiator is the patented aerodynamic propeller design, with AM enabling its production. The 3D sand-casting process provides a supply chain and speed advantage over competitors reliant on conventional casting.
Market & Competition
Target Customers
Recreational boaters, commercial marine operators, defense contractors, and marine OEMs.
Industry Verticals
Marine; Defense; Aerospace
Competitors
Mercury Marine (propeller division); Volvo Penta (propeller division); Michigan Wheel
Growth & Milestones
Growth Metrics
Expanded manufacturing footprint in Michigan to a 60,000-square-foot facility in Harper Woods, tripling capacity. Scaling production through Ford collaboration to meet global demand.
Major Milestones
Founded (2012); Launch of Sharrow Propeller; Partnership with VEEM Ltd for inboard propellers (2023); Collaboration with Ford Motor Company for 3D sand-casting production (2026); Expansion into 60,000 sq ft Detroit facility (2025); Launch of SharrowLabs innovation affiliate (2025)
Notable Customers
John G. Harris (Grand Mariner 250 / Mercury 300 hp customer - testimonial)