YASA

What YASA does

YASA Limited develops and manufactures axial flux electric motors and motor controllers for high-performance automotive, aerospace, and marine applications. The company was founded in 2009 by Dr. Tim Woolmer as a spin-out from the University of Oxford, commercialising a proprietary Yokeless And Segmented Armature (YASA) topology that removes the stator yoke and splits it into segments to reduce weight while increasing torque, power density, and efficiency. YASA's motors deliver up to 4x the performance and are approximately 50% smaller and lighter than conventional radial flux designs, with a world-record 59 kW/kg power density achieved in October 2025 using no rare-earth materials. The core product portfolio includes the P400 and 750 motors, volume YM360/YM720 series motors, the Si400 controller/inverter, and an in-wheel motor under development with Domin and Cranfield University.

YASA operates as a Tier 1 supplier selling directly to OEMs through long-term enterprise contracts and joint innovation agreements, with pricing not publicly disclosed. Its automotive customer base spans luxury and performance OEMs including Ferrari (SF90 Stradale, 296 GTB; reportedly ~75% of Ferrari supercars), Lamborghini (Revuelto, next-gen hypercar), Koenigsegg (Regera), and Mercedes-AMG (GT 4-Door, AMG.EA platform). The company also serves aerospace (Rolls-Royce Spirit of Innovation) and marine (EVOA Propulsion, Jaguar Vector V20E, Griffon Hoverwork). Since July 2021, YASA has been a wholly owned subsidiary of Mercedes-Benz AG, supplying the AMG.EA electric platform while retaining its own brand, team, and UK-based operations.

Manufacturing is anchored by a £12m, 100,000 sq ft super-factory in Yarnton, Oxfordshire (opened May 2025, capacity beyond 25,000 units/year), with additional R&D facilities in Welshpool, Wales, and mass production at Mercedes-Benz's Berlin-Marienfelde plant. A new 88,000 sq ft UK headquarters at Bicester Motion is under construction on a 15-year lease for January 2026 completion. The company employs 400+ people and is funded primarily through Mercedes-Benz ownership, supplemented by £28.2m of UK government Advanced Propulsion Centre grants (2023-2024) for in-wheel motor and inverter development.

Name

YASA

Legal name

YASA Limited

Website

https://yasa.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1–10 employees

Short description

YASA Limited designs and manufactures axial flux electric motors and controllers for luxury and performance automotive OEMs (Ferrari, Lamborghini, Mercedes-AMG, Koenigsegg), with applications in aerospace and marine; wholly owned by Mercedes-Benz AG since 2021.

Ownership category

akta.pro rank

Product category

Electric Motors & Powertrain Components

NAICS

Motor Vehicle Electrical and Electronic Equipment Manufacturing (33632), Motor Vehicle Electrical and Electronic Equipment Manufacturing (336320), Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing (333612), Engine, Turbine, and Power Transmission Equipment Manufacturing (3336)

SIC

Motors & Generators (3621)

akta.pro primary industry

AC Motors (Induction, Synchronous) (IMAGACAA)

Keywords

• Axial flux motors
• Electric vehicle motors
• High torque motors
• Motor controllers
• Automotive electrification

Headquarters

HQ city

Kidlington

HQ country

United Kingdom

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Axial Flux Electric Motors: Sale of proprietary axial flux electric motors to automotive OEMs for hybrid and pure electric vehicle applications. Motors are sold directly to manufacturers including Ferrari, Lamborghini, Koenigsegg, and Mercedes-Benz for integration into production vehicles.
2. Motor Controllers/Inverters: Sale of Si400 and series motor controllers for propulsion and generation applications. Controllers are sold alongside motors to OEM customers and are available as samples to OEM and tier-one customers.
3. Custom Motor Development: Long-term joint innovation agreements with global automotive OEMs to develop custom electric motor and controller solutions for specific high-performance vehicle applications. Development work leads to series production supply agreements.
4. Marine and Aerospace Motors: Sale of axial flux motors for marine electrification and aerospace applications including the Rolls-Royce ACCEL electric aircraft project and EVOA Propulsion marine systems.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels7 records

Core offering

YASA designs, develops, and manufactures high-power, high-torque-density axial flux electric motors and motor controllers based on its proprietary Yokeless And Segmented Armature topology. The company sells standard motors (P400, P750), series production motors (YM360, YM720), and the Si400 motor controller to automotive OEMs including Ferrari, Lamborghini, Koenigsegg, and Mercedes-AMG, as well as to marine and aerospace customers.

Product overview

YASA develops and manufactures axial flux electric motors and motor controllers as a core product portfolio. The product line centers on proprietary yokeless and segmented armature (YASA) axial flux motor technology, which offers significantly higher power and torque density than conventional radial flux motors. Key products include the P400 Series motors (delivering up to 180kW peak power from a 24kg package), the 750 motor (160kW/450Nm from 25kg), and the Si400 motor controller/inverter (200kVA from 5.8kg). YASA also offers Series Motors (YM360, YM720) for volume production and COTS (commercial off-the-shelf) motors for catalog solutions. All products serve automotive, marine, and aerospace applications and are produced at YASA's UK manufacturing facilities as a wholly owned subsidiary of Mercedes-Benz AG.

Differentiator

Problem solved

Functional benefit

Products and services

• YASA P400 Series High-performance axial flux electric motors delivering up to 390Nm peak torque and 180kW peak power from a compact 305mm diameter x 80.4mm axial length package weighing under 24kg, with advanced polymer housing and liquid cooling options for hybrid and pure electric vehicle applications.
• YASA 750 Motor Flagship axial flux motor delivering up to 160kW and 450Nm peak torque from a compact 7 litre, 25kg package, used in direct drive applications for high-performance vehicles and marine propulsion.
• YASA Series Motors (YM360, YM720) Series production axial flux motors including YM360 and YM720 variants designed for volume automotive manufacturing, with manufacturing capacity scaled beyond 25,000 units per year following the £12m super-factory upgrade in May 2025.
• Si400 Motor Controller High-performance motor controller/inverter delivering 200kVA from a 5 litre package weighing just 5.8kg, featuring innovative dielectric oil cooling and compatible with induction, permanent magnet and axial-flux motors.

Quantifiable outcome

• 59 kW/kg power density - world record for electric motors, 40% higher than previous record
• +7 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature5 records

Partnerships

Twelve partnerships are on record, tiered core, minor and major.

• Automobili LamborghinicoreOEM/ Whitelabel/ Licensing Partner · 1 November 2024YASA and Lamborghini unveiled next-generation high-performance e-propulsion technology with axial flux motors developed at YASA's R&D facility near Oxford. The partnership builds on previous collaboration for the Revuelto hybrid hypercar which uses YASA motors on the front axle.
• Cambridge GaN DevicesminorStrategic or Co-development Partner · 7 March 2024Partnered with YASA and HORIBA MIRA on Project Re-Gen, a £7M APC-funded project to develop high-frequency capable high voltage dual inverter with dual-redundant braking system. Cambridge GaN Devices contributes semiconductor expertise.
• HORIBA MIRAminorStrategic or Co-development Partner · 7 March 2024Partnered with YASA and Cambridge GaN Devices on Project Re-Gen for developing next-generation inverter technology for BEV powertrains. HORIBA MIRA provides testing and validation capabilities.
• Cranfield UniversitymajorStrategic or Co-development Partner · 22 September 2023Cranfield University partnered with YASA and Domin in the £21.2m APC-funded consortium to develop in-wheel motor technology. The university provides world-leading simulation capabilities and test facilities, assisting with digital twin modelling and vehicle powertrain design optimisation.
• DominmajorStrategic or Co-development Partner · 22 September 2023Domin partnered with YASA and Cranfield University in the APC-funded in-wheel motor project. Domin contributes world-leading expertise in active suspension solutions, which combined with YASA's motor technology creates new electric propulsion technologies for electric vehicles.
• EVOA PropulsionminorStrategic or Co-development Partner · 15 February 2023EVOA Propulsion partnered with YASA to launch the E1 Electrified Performance System for marine applications at the Miami Boat Show. YASA's axial flux motors combined with EVOA's proprietary ECOFLUX software and 800V architecture provide high-performance marine electric propulsion.
• Rolls-RoycemajorStrategic or Co-development Partner · 1 December 2019YASA partnered with Rolls-Royce on the ACCEL (Accelerating the Electrification of Flight) project to build the world's fastest all-electric aircraft. Three YASA axial flux motors powered the Spirit of Innovation, achieving 345.4mph in November 2021. The project was partly funded by the Aerospace Technology Institute, BEIS, and Innovate UK.
• ElectroflightminorStrategic or Co-development Partner · 1 December 2019Electroflight partnered with Rolls-Royce and YASA on the ACCEL electric aircraft project, providing high-performance battery systems and electrification consultancy. Based in Gloucestershire, the company supplies bespoke battery systems for aerospace.
• FerraricoreOEM/ Whitelabel/ Licensing Partner · 30 May 2019Ferrari selected YASA as the electric motor supplier for the SF90 Stradale, Ferrari's first hybrid series production sports car. YASA worked closely with Ferrari over two and a half years to develop a custom motor meeting demanding performance specifications. YASA also supplies motors for the Ferrari 296 GTB.
• Global Automotive OEM (unnamed)majorStrategic or Co-development Partner · 18 February 2019YASA signed a long-term joint innovation agreement with a global automotive OEM to develop custom electric motor and controller solutions for high-performance hybrid and pure electric vehicles. The partnership follows YASA's opening of new series production facility.
• Williams Advanced EngineeringminorStrategic or Co-development Partner · 1 January 2018Williams Advanced Engineering collaborated with YASA on the Jaguar Vector V20E electric boat project that set the electric water speed record. YASA motors were integrated with Williams' battery technology and chassis expertise.
• KoenigseggmajorOEM/ Whitelabel/ Licensing Partner · 1 March 2015Three YASA axial flux motors power the Koenigsegg Regera hypercar - two 750 motors on the rear axle for traction and one 400 motor for generation. The partnership represents the most powerful hybrid electric design in a production car at the time, delivering over 1500hp combined with the V8 engine.

Scale indicators15 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Saietta Group: UK-based axial flux motor developer focused on light electric mobility (e-scooters, motorbikes, marine). Most directly comparable startup competitor with the same axial flux architecture and similar Oxford-area roots. Smaller scale than YASA but pursues the same technology category.
• Magnax: Belgian axial flux motor startup targeting EV and wind applications with yokeless axial flux topology similar to YASA's. Direct technology competitor, though earlier-stage and at smaller scale.
• Lucid Motors: US luxury EV manufacturer that develops its own in-house axial flux motors at scale. Uses its own proprietary axial flux technology across the Lucid Air and Gravity platforms, making it both a technology competitor and a benchmark for axial flux at production scale.

Emerging players

• Equipmake: UK-based developer of electric motors and powertrains for buses, trucks, and aerospace applications. Smaller scale than YASA, focused on spoke-type permanent magnet motors rather than axial flux, but operates in adjacent UK EV motor ecosystem.
• Turntide Technologies: Developer of switched reluctance electric motors for HVAC, industrial, and EV applications. Competes in the broader advanced EV motor space with a different topology (switched reluctance) but targets similar customer pain points around efficiency and torque density.
• Rimac Technology: Croatian high-performance EV powertrain supplier (formerly Rimac Automobili) serving OEMs including Porsche, Hyundai/Kia, and Aston Martin. Develops complete electric powertrains including motors, batteries, and electronics for performance and luxury automotive applications.
• EMRAX: Slovenian manufacturer of axial flux permanent magnet motors and generators for EVs, aerospace, marine, and industrial applications. Smaller-scale direct competitor to YASA with overlapping axial flux product line.
• Hinetics: French axial flux motor startup focused on aerospace and industrial applications, with technology developed from Supelec/GE. Direct technology competitor in the axial flux category with a smaller commercial footprint than YASA.

Broad incumbents

• ZF Friedrichshafen: Global Tier 1 automotive supplier with significant EV motor production including e-axles and electric drive units. Competes indirectly through volume automotive OEM relationships and is a much larger incumbent in the broader motor and powertrain space.
• Bosch: World's largest automotive supplier with a substantial EV motor business supplying OEMs globally. Competes indirectly in the same end-market through volume production of high-efficiency radial flux motors and integrated powertrain systems.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@YasaLimited
• LinkedInlinkedin.com/company/3142699
• Xx.com/YASAMotors

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

Funding overview

Funding rounds9 records

Investors7 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about YASA