OEM (Original Equipment Manufacturer)
Definition
An OEM (Original Equipment Manufacturer) is the company that designs and produces a finished product by integrating components sourced from many suppliers. In electronics and industrial supply chains, the OEM is usually the party buying components, either directly or through a contract manufacturer.
Why it matters
The OEM sits at the center of the sourcing chain: it defines the bill of materials, chooses which parts to design in, and carries the risk when a part goes obsolete or into allocation. Understanding the distinction between the OEM and the OCM that actually makes a part is important, because they play different roles when supply gets tight.
Many OEMs outsource assembly to a contract manufacturer, which may handle some or all procurement on the OEM's behalf.
Related terms
- OCM (Original Component Manufacturer): the maker of the individual components an OEM buys.
- Contract Manufacturer (EMS): the partner that often builds and procures for the OEM.
3E Technology helps OEMs and their partners find suppliers across every channel. See the component sourcing guide.
Frequently Asked Questions
What does OEM mean?+
OEM stands for Original Equipment Manufacturer, the company that designs and builds an end product by integrating components from many suppliers. In component sourcing, the OEM is typically the buyer, procuring the parts that go into its product, sometimes directly and sometimes through a contract manufacturer.
What is the difference between an OEM and an OCM?+
An OEM (Original Equipment Manufacturer) makes the finished product. An OCM (Original Component Manufacturer) makes the individual components that go into it, such as a semiconductor or connector maker. The OEM is the customer; the OCM is the part's actual manufacturer.
Related Resources
OCM (Original Component Manufacturer)
An OCM is the company that actually manufactures a component, such as a semiconductor or connector maker. Here's how it differs from an OEM and a distributor.
Contract Manufacturer (EMS)
A contract manufacturer or EMS provider builds electronic products for OEMs, often handling procurement too. Here's the role it plays in component sourcing.
Authorized (Franchised) Distributor
An authorized distributor sells components under a direct agreement with the manufacturer. Here's what that means for traceability and counterfeit risk.
Component Sourcing: A Practical Guide for Buyers
How component sourcing works: the four supplier channels, a step-by-step sourcing workflow, how to vet suppliers, and where to find sources others miss.
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