# Evolito Ltd

Evolito Ltd is a British aerospace technology company that builds electric propulsion systems for aviation applications. Evolito operates a 3,716-sq-m (40,000-sq-ft) manufacturing and testing facility in Bicester, Oxfordshire. The company aims to accelerate the adoption of sustainable aviation, targeting applications in electric vertical takeoff and landing (eVTOL) aircraft, airships, and other advanced air mobility platforms.

## History

Evolito was established in June 2021 when YASA Limited, a pioneer in axial-flux electric motor technology, was acquired by Mercedes-Benz. As part of the acquisition, YASA spun off its aerospace division into a separate entity, Evolito, with exclusive rights to develop the technology for aviation markets.
In November 2023, Evolito became the first UK company to receive a Design Organisation Approval (DOA) from the Civil Aviation Authority (CAA) for electric propulsion systems, a milestone that validated its engineering capabilities and regulatory compliance.
In 2022, it purchased Gloucestershire-based aerospace battery developer Electroflight.
In 2025 French company Flying Whales airship startup selected the company's technology. They planned to use 32 motors on each airship.

## Leadership and culture

Marc Holme as Chief Technology Officer oversees technical development. Matthew Farides is Vice President of Business Development.
Evolito was recognized for its workplace culture, listed in The Sunday Times Best Places to Work list in 2023. In 2024, engineers Katie Tidd and Natalia Narożańska were named among the Women's Engineering Society's Top 50 Engineers.

## Markets

Competitors include magniX, Rolls-Royce Electrical, and Joby Aviation. The global aircraft electric motor market, valued at $6.5 billion in 2022, is projected to grow to $14.5 billion by 2032. Evolito's focus on rate-manufactured systems aligns with this trend, aiming to reduce costs and scale production for commercial operators.

## Technology

Evolito's core technology is its proprietary axial-flux electric motors, which are characterized by high torque density, small size, light weight, and efficiency. Unlike traditional radial-flux motors, axial-flux designs deliver power through a disc-shaped rotor, enabling compact packaging and reduced weight—critical factors for aviation applications. The company pairs these motors with power electronics, including inverters and motor controllers, to create complete electric propulsion units (EPUs). Multiple motors can be stacked together to provide greater power.
Evolito's motors are designed for scalability, supporting aircraft ranging from small eVTOLs to giant airships. The company emphasizes rate-manufactured production.
Evolito integrates high-performance Electroflight battery packs optimized for aviation safety and energy density, forming complete propulsion systems.

## Products
### Axial flux motors

The company focuses on axial flux motors (AFM) for their superior power to weight ratios. Compared to the far more common radial flux motors, AFMs flip the magnetic field by 90 degrees, directing the motor's magnetic flux in parallel to the motor axis. The associated rotor is flat, allowing the motor to be slimmer and lighter.
AFMs have been plagued by problems with materials, consistent operation, durability and cost-effective manufacturing.
It is working to supply motors to Cranfield for its hydrogen-electric demonstrator.

### D250

Evolito claims that its D250 motor is the smallest and lightest in its class. It offers 240 kW (322 hp) peak power and weighs 13 kg (28.7 lb), giving it a peak power density of 18.5 kW/kg, greater than any other aviation motor, including the 15.8-kW/kg Donut Lab hub motor and the 13.4-kW/kg H3X HPDM-250 e-aircraft motor.
A later iteration of the D250 is claimed to offer 28 kW/kg peak power density, creating 230 kW (308 hp) for only 8.3 kg (18.3 lb). That unit is able to run continuously at 90% peak power, providing continuous power at 25 kW/kg. Torque numbers are nearly identical at 230 Nm (170 lb-ft) peak and 208 Nm (153 lb-ft) continuous.

## Applications

Evolito's propulsion systems target the emerging advanced air mobility (AAM) sector, which includes eVTOL aircraft for urban air taxis, regional transport, and logistics. The company is also targeting traditional aviation segments, such as fixed-wing aircraft and rotorcraft.