Semmco Ltd

Maintenance Access Platforms and Ground Support Equipment

Core Services & Expertise

Semmco designs and manufactures maintenance access platforms, steps, and ground support equipment enabling engineers to access and maintain aircraft, helicopters, and trains safely and efficiently. Founded in 1993 by Managing Director Stuart McOnie, the company delivers cost-effective solutions designed by engineers for engineers serving commercial aviation, business aviation, aircraft engine manufacturers, helicopters, rail operations, and military aviation sectors worldwide.

GSE portfolio includes oxygen and nitrogen trolleys/carts, wheel and brake change equipment, wheel and brake service carts, digital tyre gauges and inflators, and Nitrogen Walk Round Charge Kits enabling aircraft maintenance facilities to service aircraft efficiently on flight lines and in hangars.

Geographic Reach & Operations

Semmco operates as a global business with facilities in the United Kingdom, United States, and Middle East. UK headquarters located in Woking, Surrey (just off M25 near London Heathrow and London Gatwick) serves European markets.

The international presence enables responsive service delivery and regional support for customers across commercial airlines, rail companies, military operations, and aerospace manufacturers.

The company’s comprehensive service capabilities encompass design, manufacture, installation, and ongoing equipment service ensuring customers maintain operational readiness. Semmco provides bespoke design processes for companies requiring unique access solutions beyond standard product offerings, collaborating with customers to develop customized platforms addressing specific operational challenges.

Industry Credentials & Recognition

In 2019, Semmco received the Queen’s Award for Enterprise, International Trade-the ultimate recognition for British business excellence. Since inception, the company has won numerous awards recognizing manufacturing excellence and product development innovation.

Semmco’s industry leadership position spans commercial aviation, business aviation, aircraft engine manufacture and maintenance, helicopter operations, rail transportation, and military aviation. The company’s reputation as most respected maintenance equipment designer and manufacturer derives from delivering innovative solutions supporting world’s airlines and rail companies.

Client Benefits & Product Range

Aviation customers benefit from Semmco’s extensive access platform solutions enabling safe work at height during essential maintenance tasks. The company’s engineering expertise produces platforms combining functionality, safety compliance, and operational efficiency. Products are designed for different industry requirements and customer applications, from standard configurations to fully customized access solutions addressing unique facility layouts or aircraft types.

Ground support equipment enables aircraft engineers to efficiently service aircraft with comprehensive tooling addressing fluid servicing, wheel and brake maintenance, and tire pressure management. Semmco’s commitment to innovation drives development of future products that are elegant, easily operated, and competitively priced.

Key Product Categories:

• Aviation Access Platforms: Maintenance platforms for commercial and business aircraft servicing
• Engine Access (Off-Wing): Specialized platforms for aircraft engine maintenance when removed from aircraft
• Helicopter Access Platforms: Rotorcraft-specific access solutions for maintenance operations
• Rail Access Platforms: Maintenance platforms for railway rolling stock and locomotives
• Ground Support Equipment: Comprehensive GSE for aircraft line and hangar maintenance
• Military Products: Ruggedized access platforms and GSE for military aviation operations
• Oxygen & Nitrogen Trolleys/Carts: Mobile servicing equipment for aircraft gas systems
• Wheel & Brake Equipment: Change equipment and service carts for landing gear maintenance
• Digital Tyre Gauges & Inflators: Precision tire pressure measurement and inflation systems
• Nitrogen Walk Round Charge Kits: Portable nitrogen servicing equipment for flight line operations

Distinctive Corporate Mission

Semmco’s mission statement defines the company’s purpose: “To be the most respected maintenance equipment designer and manufacturer to the world’s airlines and rail companies and to deliver innovative solutions to keep professional people safe while working in high risk environments.”

The company’s “designed by engineers for engineers” philosophy ensures products address real-world operational challenges understood through engineering perspective. This approach produces practical solutions balancing functionality, safety, ergonomics, and cost-effectiveness. Semmco’s engineering team comprises experts skilled in their roles, collectively enhancing organizational professionalism and product quality.

Quick Facts

• Founded: 1993
• Founder: Stuart McOnie (Managing Director)
• Headquarters: Woking, Surrey, United Kingdom
• Global Operations: UK, USA, Middle East
• Design Philosophy: Designed by engineers for engineers
• Major Recognition: Queen’s Award for Enterprise, International Trade (2019)
• Additional Awards: Multiple awards for manufacturing and product development excellence
• Mission: Most respected maintenance equipment designer and manufacturer to world’s airlines and rail companies

Contact Details

Address: 9 Kestrel Way, Woking, Surrey, GU21 3BA, UK
Phone: +44 (0)1483 757 200
Email: sales@semmco.com
Website: www.semmco.com

Location