LEONI AG is a group of companies located in Nuremberg, Germany. It is a manufacturer and supplier of wires, optical fibers, cables and cable systems as well as related development services for applications in the automotive business and other industries. 

LEONI develops and manufactures: single-core auto-motive cables, wiring systems with integrated electronics, wires and strands,fiber optic cables standardized cables, and special cables for applications in various markets.

LEONI product ranges comprises of ultra-thin bare copper wire to hybrid cables, the simple connecting cable with plug to complete electrical wiring systems for automobiles. 

In addition Leoni offers services, such as: advice on the choice of suitable products; assembly and installation on-site; maintenance and in due time replacement of cables for robotics and automation; drafting of logistics concepts; wiring of supplied engine and equipment parts (modules); control cabinets; development of plastic components (Rapid Prototyping); reflections on profitability of wiring systems, etc.   Leoni offers the following product categories

• Accessories
• Cable Assembly
• Cable system solutions
• copper cable
• electrical system
• electronic system components
• FTTx system solution
• Fiber optics
• Glass Fiber
• Hybrid cable
• Plastic components
• Services
• Wires and strands
• Wiring systems

  Leoni caters to some of the following markets

• Aerospace
• Airports
• Automotive
• Building services engineering
• Cable industry
• Communication/telematics
• Data communication
• Drives
• Earthing and short-circuiting of devices
• Electrical appliances and power tools
• Energy distribution
• Factory automation
• Fail-safe systems
• Fiber to home
• Industrial plants
• Infrastructure
• Laser medicine
• Lighting/lamps
• Telecommunications
• Robotics