Electric car maker will also set its headquarters up in Munich.
Rimac will supply the battery and electric drivetrain technology used in the upcoming Pininfarina PF0 hypercar.
After decades of designing and manufacturing vehicles for other manufacturers, the PF0 is the Italian company's first own-brand vehicle, and is due to enter production in late 2020.
The PF0 will have a carbon-fibre body, and an all-electric powertrain. Although details about the PF0's drivetrain have yet to be confirmed, the company has previously stated the car will have a 0-100km/h time under two seconds, a top speed in excess of 400km/h, and a range of over 480 kilometres.
Above: Rimac Concept One.
A concept version of the PF0 was shown to potential clients and luxury retailers in private sessions last month. The car's final design and name will be revealed at the 2018 Geneva motor show in March.
In other news, Automobili Pininfarina has announced it will base itself in Munich, Germany, in order to improve its "access to expertise and engineering networks".
The budding sports car maker has also recruited Christian Jung, formerly the chief engineer on the Porsche Mission E/Taycan program, to be its chief technical officer, and appointed former Formula One and Formula E driver Nick Heidfeld as its development driver.