← Business Models: Industry Specific (Industrials & Materials) (all topics)
Contract manufacturing - electronics (EMS vs ODM)
What it is
Three positions on the electronics manufacturing value ladder. Box-build is final assembly of a customer's design; EMS adds printed circuit board assembly, sourcing and testing; ODM means the manufacturer designs the product itself and the brand simply badges it
Each step up adds design content, margin and customer stickiness
Impact on industries
- ODM carries materially better margins than contract assembly, since the manufacturer owns the design and is not competing purely on conversion cost
- Design ownership makes the relationship sticky - a brand cannot move an ODM product to another supplier without redesigning it
- Box-build is close to labour arbitrage, with thin margins and no defence if a customer moves volume to a cheaper location
- Moving up requires design teams, component engineering and test capability, so the climb is capability-gated rather than capital-gated
- Customer concentration is high at every level, since a handful of global brands drive most volume