Hamilton-based Portakabin Events and Glasgow's SecuriGroup were revealed as suppliers by Ryder Cup Europe after undertaking a tender process through the official procurement portal on the Public Contracts Scotland (PCS) website.
The announcement comes after Scottish IT group NVT won a "six-figure" deal to run the technology and communications at next September's event. That came a year after the Lanarkshire-based business won the contract for the 2014 Commonwealth Games.
Portakabin Events, part of Portakabin Group, will supply 80 temporary offices and 20 storage units which will serve as administrative hub for organisations such as the PGA of America, EventScotland and Ryder Cup Europe during the matches. The company, which employs 120 staff in Scotland, has previously supplied the Ryder Cup as well as The Open Championship, T in the Park, and Edinburgh's Hogmanay.
Glasgow-based SecuriGroup, which employs more than 2500 staff, will provide about 700 staff to cover safety and security.
No values have been attached to the contracts, which were awarded through a procurement portal led by Ryder Cup Europe, the Scottish Government and Scottish Enterprise. It is the first time private contracts have been made available through a public sector portal.
Ryder Cup Europe expects about 5000 people will be employed on events directly related to the event.