Hay/stack is a consultancy specialising in enabling clients to access and work with the very best marketing resources available, to optimise performance for their brands and their business. We support our clients by identifying which agencies to work with, helping them set up the framework for effective and efficient engagement and monitoring performance and outcomes to ensure the best value for money is always delivered to the brief set, or the scope of work.

Haystackonline.com is an open access, cloud-based portal designed and developed by us, based on over 15 years of experience, to facilitate companies commissioning advertising and marketing services, by matching and scoring the agencies on our database, against the companies’ specific needs. The portal provides access to practical support via a proprietary process known as P.I.T.C.H.

Contact details


First Floor Slade’s
Church Road
HP10 8LY
United Kingdom