Original equipment manufacturer

Company that fabricates parts used in another company's products

"OEM" redirects here. For other uses, see OEM (disambiguation).

Supply chain pyramid

An original equipment manufacturer (OEM) is a company that produces parts and equipment that may be marketed by another company. However, the term is ambiguous, with several other common meanings: an OEM can be the maker of a system that includes other companies' subsystems, an end-product producer, an automotive part that is manufactured by the same company that produced the original part used in the automobile's assembly, or a value-added reseller.[1][2] OEM manufacturing is also widely used in the packaging industry, particularly in the production of customized gift boxes for wine and spirits. These OEM producers allow brands to create unique holiday packaging without maintaining their own manufacturing facilities.[3]

## Automotive parts

[edit]

When referring to auto parts, OEM typically refers to the manufacturer of the original equipment, that is, the parts which are then subsequently assembled and installed during the construction of a new vehicle. In contrast, aftermarket parts are those made by companies other than the OEM, which might be installed as replacements or enhancements after the car comes out of the factory. For example, if Ford used Autolite spark plugs, Exide batteries, Bosch fuel injectors, and Ford's own engine blocks and heads when building a car, then car restorers and collectors consider those to be the OEM parts.[4][5] Other-brand parts would be considered aftermarket, such as Champion spark plugs, DieHard batteries, Kinsler fuel injectors, and BMP engine blocks and heads.

Many auto parts manufacturers sell parts through multiple channels, for example to car makers for installation during new vehicle construction, to car makers for resale as automaker‑branded replacement parts, and through general merchandising supply chains. Any given brand of part can be OEM on some vehicle models and aftermarket on others.[6][7]

Not all auto parts are available in OEM versions. In some cases, vehicle manufacturers secure exclusive sales rights for specific components. These parts are produced by contracted suppliers and carry the automaker's branding, but the suppliers are not permitted to sell them independently under their own name.[8]

## Computer software

[edit]

### Windows

[edit]

Microsoft is a popular example of a company that issues its Windows operating systems for use by OEM computer manufacturers via the bundling of Microsoft Windows. OEM product keys are priced lower than their retail counterparts, especially as they are purchased in bulk quantities, although they use the same software as retail versions of Windows. They are primarily for PC manufacturer OEMs and system builders, and as such are typically sold in volume licensing deals to a variety of manufacturers (Dell, HP, ASUS, Acer, Lenovo, Wistron, Inventec, Supermicro, Compal Electronics, Quanta Computer, Foxconn, Pegatron, Jabil, Flex, etc.).

These OEMs commonly use a procedure known as System Locked Pre-installation, which pre-activates Windows on PCs that are to be sold via mass distribution. These OEMs also commonly bundle software that is not installed on stock Windows on the images of Windows that will be deployed with their PCs (appropriate hardware drivers, anti-malware and maintenance software, various apps, etc.).

Individuals may also purchase OEM "system-builder" licenses for personal use (to include virtual hardware), or for sale/resale on PCs which they build. Per Microsoft's EULA regarding PC manufacturers and system-builder OEM licenses, the product key is tied to the PC motherboard which it is initially installed on, and there is typically no transferring the key between PCs afterward. This is in contrast to retail keys, which may be transferred, provided they are only activated on one PC at a time. A significant hardware change will trigger a reactivation notice, just as with retail.[9]

Direct OEMs are officially held liable for things such as installation/recovery media, and as such were commonly provided until the late-2000s. These were phased out in favor of recovery partitions located on the primary storage drive of the PC (and available for order from the manufacturer upon request) for the user to repair or restore their systems to the factory state. This not only cut down on costs, but was also a consequence of the gradual obsolescence and phasing out of optical media from 2010 onward. System builders also have a different requirement regarding installation media from Direct OEMs.[10][11]

While a clean retail media of Windows can be installed and activated on these devices with OEM keys (most commonly using the SLP key that's embedded in to the system firmware already), actual OEM recovery media that was created by the PC manufacturer (not system-builder, nor retail Windows versions) typically only works on the PC model line that was designed for it. For example, a recovery disc/USB for a Toshiba Satellite P50-B will only work on that model, and not a Satellite S55T.

### Android

[edit]

The OEM smartphone manufacturers, such as Samsung, Sony and Xiaomi, are manufacturers of hardware and software of smartphones. Such manufacturers usually customize and adapt suitable Android operating system, with manufacturer components such as One UI and MIUI.

## Skateboards

[edit]

Skateboard decks are primarily produced by a small number of specialized OEMs, such as PS Stix, BBS, and Dwindle.[12] These manufacturers handle the entire production process, including sourcing high-quality wood, crafting molds, gluing and pressing multiple layers of veneer, and applying graphics designed by the brands to the decks.[13] Once completed, the finished products are distributed to skateboarding brands, which sell them under their respective labels.

## Economies of scale

[edit]

OEMs rely on their ability to drive down the cost of production through economies of scale. Using an OEM also allows the purchasing company to obtain needed components or products without owning and operating a factory.

## See also

[edit]

* Manufacturing portal

* Contract manufacturer
* Electronics manufacturing services
* Open-design movement
* Open-source hardware
* Original design manufacturer
* Outsourcing
* Private label
* Rebranding
* Secondary market
* White-label product

## References

[edit]

1. ^ Kidder, John Tracy (1981). "1. How to Make a Lot of Money". The Soul of a New Machine. United States: Little, Brown and Company. ¶ 17. ISBN 9780316491709. "Many customers, such as the Department of Defense, wanted to buy complete systems, all put together and ready to run with the turn of a key; hence the rise of companies known as original equipment manufacturers, or OEMs—they'd buy gear from various companies and put it together in packages."
2. ^ "Original Equipment Manufacturer (OEM)". Practical Law. Archived from the original on 19 June 2024. Retrieved 19 June 2024.
3. ^ "5 Creative Ideas for Holiday Wine Gift Boxes That Impress". Fordico OEM. 25 June 2025. Retrieved 4 July 2025.
4. ^ Khartit, Khadija; Kvilhaug, Suzanne (15 April 2015). "What Is an Original Equipment Manufacturer (OEM)? Definition". Investopedia. Archived from the original on 24 January 2022. Retrieved 19 June 2024. "OEM stands for Original Equipment Manufacturer. The OEM is the original producer of a vehicle's components, and so OEM car parts are identical to the parts used in producing a vehicle. Aftermarket parts are produced by other vendors and do not necessarily have a consistent level of quality or compatibility with the vehicle."
5. ^ "OEM - Encyclopedia". Automotive Fleet. Archived from the original on 21 September 2020. Retrieved 19 June 2024. "In the automotive industry, OEM refers to the company that designs and manufactures the original components and systems used in vehicles during their initial assembly."
6. ^ Kagan, Julia; et al. (20 June 2005). "Original Equipment Manufacturer (OEM): Definition and Examples". Investopedia. Archived from the original on 4 January 2024. Retrieved 19 June 2024. "In the auto repair industry, OEM parts are those products used by a car manufacturer. Aftermarket parts are made by a third-party manufacturer but may be compatible with the same vehicles."
7. ^ Delbridge, Emily; et al. (29 July 2013). "OEM Parts vs. Aftermarket Parts: What's the Difference?". The Balance. Archived from the original on 19 September 2022. Retrieved 19 June 2024. "OEM parts are made by the car manufacturer, and aftermarket parts, which may cost less, are made by another company."
8. ^ "OEM vs Original vs Aftermarket Auto Parts: Complete Guide 2025". AAASTAND. 12 July 2025. Retrieved 24 July 2025.
9. ^ "General Info on Microsoft OEM COA's, CDs, Ect". eBay. Archived from the original on 12 February 2014. Retrieved 9 September 2015.
10. ^ "Licensing FAQ: System builder licensing". Microsoft. Archived from the original on 2 October 2015. Retrieved 1 October 2015.
11. ^ "OEM System Builder Licensing Guide" (PDF). Microsoft. Archived from the original (PDF) on 8 March 2014. Retrieved 9 September 2015.
12. ^ Gifted Hater (25 May 2022). Skateboard Woodshops w/ Ben Degros. Retrieved 18 January 2025 – via YouTube.
13. ^ Touring PS Stix with Professor Schmitt!. Retrieved 18 January 2025 – via YouTube.

* v
* t
* e

Major EMS, ODMs, and OEMs

Companies with an annual revenue of over US$3 billion

* Celestica
* Compal Electronics
* Flex
* Foxconn
* Jabil
* Pegatron
* Quanta
* Sanmina Corporation
* TPV Technology
* Wistron Corporation

See also
Largest IT companies
Electronics manufacturing services
Original design manufacturer
Original equipment manufacturer

* v
* t
* e

Major industries by economic sector

Primary sector or ′Natural sector′ (raw materials)

| Biotic|

| Agriculture|

* Arable farming
* Cereals
* Legumes
* Vegetables
* Fiber crops
* Oilseeds
* Sugar
* Tobacco
* Permanent crops
* Apples et al.
* Berries
* Citrus
* Stone fruits
* Tropical fruit
* Viticulture
* Cocoa
* Coffee
* Tea
* Nuts
* Olives
* Medicinal plants
* Spices
* Horticulture
* Flowers
* Seeds
* Animal husbandry
* Beef cattle
* Dairy farming
* Fur farming
* Horses
* Other livestock
* Pig
* Wool
* Poultry
* Beekeeping
* Cochineal
* Shellac
* Silk
* Hunting
* Fur trapping

|

Forestry|

* Silviculture
* Bamboo
* Logging
* Firewood
* Rattan
* Tree tapping
* Frankincense
* Gum arabic
* Gutta-percha
* Maple syrup
* Mastic
* Natural rubber
* Palm sugar, syrup, & wine
* Pine resin
* Wild mushrooms
* Fungiculture
* Truffles

Aquatic|

* Fishing
* Anchovies
* Herring
* Sardines
* Cod
* Haddock
* Pollock
* Mackerel
* Shark
* Swordfish
* Tuna
* Crabs
* Lobsters
* Sea urchins
* Squid
* Whaling
* Aquaculture
* Carp
* Catfish
* Tilapia
* Abalone
* Mussels
* Oysters
* Pearls
* Microalgae
* Seaweed
* Both
* Clams
* Sea cucumbers
* Scallops
* Salmon
* Shrimp

Geological|

* Fossil fuels
* Coal
* Peat
* Natural gas
* Oil shale
* Petroleum
* Tar sands
* Mining of ores
* Aluminum
* Copper
* Iron
* Gold
* Silver
* Palladium
* Platinum
* Lithium
* Rare-earth metals
* Uranium
* Other minerals
* Gemstones
* Phosphorus
* Potash
* Salt
* Sulfur
* Quarrying
* Gravel
* Sand
* Chalk
* Clay
* Gypsum
* Limestone
* Dimension stone
* Granite
* Marble

Secondary sector or ′Industrial sector′ (goods manufacturing)

| Manufacturing|

| Light industry|

* Food
* Animal feed
* Baking
* Canning
* Dairy products
* Flour
* Meat
* Prepared
* Preserved
* Sweets
* Vegetable oils
* Beverages
* Beer
* Bottled water
* Liquor
* Soft drinks
* Wine
* Textiles
* Carding
* Dyeing
* Prints
* Spinning
* Weaving
* Carpets
* Lace
* Linens
* Rope
* Clothing
* Accessories
* Dressmaking
* Furs
* Hatmaking
* Sewing
* Shoemaking
* Tailoring
* Printing
* Bookbinding
* Embossing
* Engraving
* Secure
* Typesetting
* Media reproduction
* Cassette tapes
* Phonographs
* Optical discs
* Metal fabrication
* Boilermaking
* Builders' & household hardware
* Cutlery
* Gunsmithing
* Locksmithing
* Machining
* Other smithing
* Powder metallurgy
* Prefabrication
* Surface finishing
* Other fabrication
* 3D printing
* Blow molding
* Drawing
* Extrusion
* Glassblowing
* Injection moulding
* Pottery
* Sintering
* Stonemasonry
* Woodworking
* Furniture
* Other goods
* Baggage
* Bicycles
* Jewellery
* Medical supplies
* Musical instruments
* Office supplies
* Outdoors & sports equipment
* Personal protective equipment
* Toys

|

Electrical
& optical|

* Electronics
* Components
* Circuit boards
* Semiconductors
* Computers
* Computer systems
* Parts & peripherals
* Blank storage media
* Communications equipment
* Mobile phones
* Network infrastructure
* Consumer electronics
* Televisions
* Video game consoles
* Instrumentation
* Clocks and watches
* GPS devices
* Scientific instruments
* Medical imaging systems
* Optical instruments
* Cameras
* Gun & spotting scopes
* Laser construction
* Lens grinding
* Microscopes
* Telescopes
* Electrical equipment
* Batteries
* Electrical & fiber optic cables
* Electric lighting
* Electric motors
* Home appliances
* Transformers

Chemicals|

* Coal & oil refining
* Bitumen
* Coke
* Diesel fuel
* Fuel oil
* Gasoline
* Jet fuel
* Kerosene
* Mineral oil
* Paraffin wax
* Petrochemicals
* Petroleum jelly
* Propane
* Synthetic oil
* Tar
* Commodity chemicals
* Fertilizers
* Industrial gases
* Pigments
* Pure elements
* Speciality chemicals
* Adhesives
* Agrochemicals
* Aroma compounds
* Cleaning products
* Cosmetics
* Explosives
* Fireworks
* Paints & inks
* Perfumes
* Soap
* Toiletries
* Fine chemicals
* Pharmaceuticals
* Antibiotics
* Blood products
* Chemical & hormonal contraceptives
* Generic drugs
* Illegal drugs
* Supplements
* Vaccines

Materials|

* Leather
* Liming & deliming
* Tanning
* Currying & oiling
* Wood
* Drying
* Sawmilling
* Engineered
* Lumber
* Composite
* Paper
* Sizing
* Cardboard
* Pulp
* Tissue
* Rubber
* Tires
* Vulcanized rubber
* Plastics
* Commodity
* Engineered
* Specialty
* Pellets
* Synthetic fibers
* Thermoplastics & thermosets
* Glass
* Borosilicate
* Fused quartz
* Soda-lime
* Float glass
* Glass fiber
* Glass wool & fiberglass
* Safety glass
* Ceramics
* Brick
* Earthenware
* Porcelain
* Refractory
* Tile
* Cement
* Mortar
* Plaster
* Ready-mix concrete
* Other mineral
* Abrasives
* Carbon fibers & advanced materials
* Mineral wool
* Synthetic gems
* Metal refining
* Iron
* Aluminum
* Copper
* Alloys
* Steel
* Formed metal
* Rolled
* Forged
* Cast metal

Heavy industry|

* Machinery
* Conveyors
* Heavy
* Hydraulic
* Machine tools
* Power & wind turbines
* Automobiles
* Other heavy vehicles
* Aerospace & space
* Rail vehicles
* Ships & offshore platforms
* Weapons

Utilities|

* Power
* Electric
* Gas distribution
* Renewable
* Water
* Sewage
* Waste management
* Collection
* Dumping
* Hazardous
* Recycling
* Remediation
* Telecom networks
* Cable TV
* Internet
* Mobile
* Satellite
* Telephone

Construction|

* Buildings
* Commercial
* Industrial
* Residential
* Civil engineering
* Bridges
* Railways
* Roads
* Tunnels
* Canals
* Dams
* Dredging
* Harbors
* Specialty trades
* Cabinetry
* Demolition
* Electrical wiring
* Elevators
* HVAC
* Painting and decorating
* Plumbing
* Site preparation

Tertiary sector or ′Service sector′ (services)

| Sales|

* Retail
* Car dealership
* Consumer goods
* General store
* Grocery store
* Department store
* Mail order
* Online shopping
* Specialty store
* Wholesale
* Auction
* Brokerage
* Distribution

|

Transport
& Storage|

* Cargo
* Air cargo
* Intermodal
* Mail
* Moving company
* Rail
* Trucking
* Passenger transport
* Airlines
* Car rentals
* Passenger rail
* Ridesharing
* Taxis
* Warehousing
* Self storage

Hospitality|

* Foodservice
* Drink service
* Cafés
* Catering
* Fast food
* Food delivery
* Restaurants
* Teahouses
* Hotels

Asset management|

* Financial services
* Banking
* Credit
* Financial advice
* Holding company
* Money transfer
* Payment cards
* Risk management
* Securities
* Insurance
* Health
* Life
* Pension funding
* Property
* Reinsurance
* Real estate
* Brokerage
* Property management

Professional|

* Accounting
* Assurance
* Audit
* Bookkeeping
* Tax advice
* Architecture & engineering
* Inspection
* Surveying
* Physical, product, & system testing
* Design
* Fashion
* Interior
* Product
* Legal services
* Management
* Consulting
* Public relations
* Marketing
* Advertising
* Creative
* Language
* Research and development
* Basic research

Healthcare|

* Medicine
* Dentist offices
* Hospitals
* Nursing
* Residential care
* Veterinary medicine

Entertainment
& leisure|

* Audio-visual
* Film
* Music
* Video games
* Broadcasting
* News
* Radio
* Television
* Sport
* Travel
* Business travel
* Cruise lines
* Tourism
* Gambling
* Online
* Venues
* Arcades
* Amusement parks
* Fairgrounds
* Nightclubs
* Tabletop games

Publishing
& Mass media|

* Written
* Books
* Periodicals
* Software
* Internet
* Hosting
* Social networks
* Streaming
* Websites

Education|

* Primary
* Secondary
* Tertiary
* Vocational school
* University
* Testing
* Tutoring

Other|

* Administrative
* Customer service
* Leasing
* Renting
* Staffing
* Private investigation & security
* Maintenance
* Janitors
* Landscaping
* Repairs
* Personal services
* Beauty
* Dry cleaning
* Funeral
* Maid service
* Pet care
* Sex
* Poverty

Related

| Classification
standards|

* Production-based
* ANZSIC
* ISIC
* NACE
* NAICS
* SIC
* UKSIC
* Market-based
* GICS
* ICB
* TRBC
* Other
* Aftermarket
* Generic
* OEM

|

Inputs
& outputs|

* Externalities
* Community
* Crime
* Culture
* Pollution
* Well-being
* Funding
* Goods
* Commodities
* Final
* Intermediate
* Raw material
* Innovation
* Primary inputs
* Labor
* Natural resources
* Physical capital
* Services
* Technology

Organization|

* Centralization
* Cartel
* Conglomerate
* Horizontal integration
* Mergers and acquisitions
* Monopoly
* Monopsony
* Vertical integration
* Decentralization
* Enforced breakup
* Freelancing
* Homesteading
* Outsourcing
* Putting-out system
* Spinning-off
* Temporary work
* Ownership
* Cooperative
* Joint-stock company
* Nationalization
* Nonprofit organization
* Partnership
* Privatization
* Sole proprietorship
* State-owned enterprise

* Category
* Commons
* Outline

*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template