Una is a new end-to-end primary ticketing service that prevents touting, counterfeiting and eliminates booking fees.
Zeitgeist will run a campaign to challenge the monopoly on the ticketing market, promote the merits of the system and recruit promoters.
Jamie Stockwood, founder of The Zeitgeist Agency, said: "The campaign we have devised will challenge the establishment, and the biggest players in the industry. Working with music start-ups is familiar territory for The Zeitgeist Agency and the Una Tickets proposition perfectly matches our skill set."
Georgina Hollis, co-founder and commercial director of Una, said: "We chose to work with The Zeitgeist Agency as we felt it truly understood our needs as a start-up company entering a tough market. Its list of current clients is impressive and highlights its understanding of the industry."