- +44 01329760397
- Faraday Business Park, 15 Spitfire Wy, Fareham
- info@dfmblades.com
A team of experienced and well-established experts in
design and manufacturing of wind turbine blades
The Team
Reliable, Responsive, and Technically Sound
Meet Our People
Design for manufacturing is in our DNA—just like our passion for delivering reliable, affordable, and sustainable energy.
Our team unites engineers, designers, energy industry veterans, and leading researchers with one shared mission: to pioneer the technologies shaping the future of clean energy.
By blending technical expertise with bold creativity, we push the boundaries of efficiency and quality—transforming innovative ideas into robust, high-performance products that are built to last.
Here, talent meets purpose, driving excellence in every project we undertake.
A group of experts, experienced in all aspects of blade design and manufacture
The Experts
Jelmer Cnossen
Senior Blade Specialist (Design)
15 years’ experience in aerodynamics, conceptual blade design and aeroelasticity, at Suzlon, Blade Dynamics, GE Vernova /LM Windpower.
PhD in Aerospace Engineering, Delft University of Technology.
linkedIn
Steve Wardropper
Senior Blade Specialist (Manufacture)
Blade Manufacturing engineer. 14 years' large OEM experience. Vestas, GE Vernova/LM Windpower.
BEng Hons Yacht Production and Surveying, Solent University. BA Hons Industrial Design, Brunel University.
LinkedIn
Mark Hancock
Technical Advisor
Mark Hancock has worked within the wind energy industry since the early 1980s. Mark has operated as Chief Engineer for Taywood Aero laminates, NEG Micon, Vestas & GE Vernova. Mark has designed some of the world’s highest selling wind turbine blades.
LinkedIn
Blake Harris
Blade Design Engineer
15 years large OEM experience. Including Blade Dynamics, GE/LM Windpower.
BSc Product Design and Innovation.
LinkedIn
Christopher Sutcu
Composite Structural Engineer
PhD in Mechanical Engineering, Queen’s University Belfast, specialising in fracture toughness of composite joints and components, to create more robust composite structures.
LinkedIn
Finlay Wallace
Composite Structural Engineer
13 years’ experience in composite structural design across a variety of companies, including Orbital Tidal Energy.
MEng Mechanical Engineering, MSc Offshore Renewable Energy, CEng MIMechE.
innovation as a way of life
The Founders
Feras Yosef
Managing Director
Founder and CEO of DFS Composites specialising in design & manufacturing of tooling for rotor blades. Over 15 years of experience in wind energy.
LinkedIn
Julian Brown
Chairman
Director and former chairman of RenewableUK, the UK’s leading trade association for renewables, non-executive chair of AIM listed Tekmar Group and holder of many other board or advisory roles, has two decades of experience in the wind industry.
LinkedIn
John Rimmer
Technical Director
John has worked in the Wind Industry since 1995, specialising in Rotor Blades from 1998. A strong 6-Sigma advocate, his career is built around Process Design & Optimisation to bridge the gap between Design and Manufacturing.
LinkedIn
Nick barlow
Technical Advisor
Founder and owner of Design Craft which was established in 2001. Designed and manufactured rotor blades for wind and tidal. Over 4 decades of practical experience within the WTG industry.
What People Say About Us
Client Testimonials
“Lorem ipsum dolor sit amet, contur ading elit, sed do eiusmod tempor incididunt ut labore et dolore mgna aliqua. Elit ullarper dignissim cras tincidunt lobortis feugiat.”
John DanielUNITEX CEO 
“Lorem ipsum dolor sit amet, contur ading elit, sed do eiusmod tempor incididunt ut labore et dolore mgna aliqua. Elit ullarper dignissim cras tincidunt lobortis feugiat.”
Ella-Louise MoyerHARISON VP marketing
“Lorem ipsum dolor sit amet, contur ading elit, sed do eiusmod tempor incididunt ut labore et dolore mgna aliqua. Elit ullarper dignissim cras tincidunt lobortis feugiat.”
Larry MartinBYTES CRO