The Network Platinum Franchisee event is being held to reward the fleet management company's top performers and a total of 40 delegates are set to attend in May.
Details of the programme are now being finalised and Adding Value's client services director Charlotte Cresswell said: "We are delighted to have the opportunity to work with Leaseplan UK and very much look forward to delivering a truly first-class event for their Network Platinum Franchisees."
According to Leaseplan UK's network brand manager Jo Elms, the agency "demonstrated an excellent understanding of the audience and what would appeal to them".
She added: "We were very impressed with the proposal that Adding Value put forward, and, in particular, their creativity and knowledge of the destination. Their passion and enthusiasm really brought the incentive to life."