Pitch is targeting City workers via media relations and experiential marketing. The agency is also seeking to set up 'retail and media partnerships' to boost Club Wembley's profile.
Club Wembley comprises 17,000 seats in a central tier. It will boast bars and restaurants that will be off-limits to most fans in the 90,000-capacity stadium.
The 166 Club Wembley corporate boxes have already sold out, but around one third of the remaining 15,000 seats are unclaimed.
Pitch's campaign will focus on promoting the cheapest of four Club Wembley packages – the so-called 'Club' ten-year season tickets.
They cost £3,900 up-front, plus an annual payment of £1,350 over the decade.
WNSL uses Jackie Cooper PR for consumer work and Stuart Higgins Communications for corporate and crisis management.