Vehicle management and leasing provider Lease Plan appointed the Twickenham-based agency following a five-way competitive pitch process.
The event is being held to reward the company’s top performing franchisees for delivering outstanding results and will take place during 2013, although details of the destination and programme are yet to be finalised.
Lease Plan UK network brand director Jo Elms said: "The proposal from Adding Value was very impressive. They demonstrated great creativity and understanding of what it takes to communicate to and wow such a high profile and discerning audience.
"The team’s passion, enthusiasm and attention to detail really instilled confidence in us and we look forward to working with Adding Value on this exciting programme."
Adding Value’s client services director Charlotte Cresswell is leading on the project and said: "We are thrilled to have the opportunity to continue to support Lease Plan with this prestigious event and very much look forward to delivering a truly first class experience for their Network Platinum Franchisees."