Glossary

Tier 1

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Main suppliers to OEMs or car makers, typically responsible for assembling complex systems within the vehicle, such as the engine, gearbox, wiring loom, brake system, etc. Second level of the Automotive industry supply chain.

Tier 2

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Responsible for smaller systems, bespoke processes, task-specific software or components. Tier 2 suppliers work closely with multiple Tier 1 suppliers, and may even be part of the same company. For example, Autoliv is a major…

Tier 3

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Considered to be outside the active supply chain, these companies provide raw materials (such as steel, silicon, carbon fibre, paint, etc) to Tier 2 manufacturers. It is rare for Tier 3 companies to be visible…