It won the tender process against rival Experian, after previous provider Trader Data Systems closed in February.
This is the third top dealer group win for HPI recently.
The company will provide Arnold Clark with its vehicle and mileage checks.
Kenny McLean, Arnold Clark financial director, said: “The level of service from HPI is second to none, making it the obvious choice. We will be able to give our network the confidence to sell, supported by the power of the HPI brand.”
Daniel Burgess, HPI’s director of automotive, added: “The commitment of the HPI team means all our dealers gain a personal service backed by years of experience.”