The competition launched last month and offered new start-ups the opportunity to use the services of Proximity, Iris, Exposure and RPM free of charge for one year.
Safe Tray Products impressed the panel with its simple and effective problem solving concept.
The business uses a discrete, retractable hand clips on the underside of a tray to provide stability that will allow a bottle of wine to be placed right on the edge of the surface while the tray remains completely horizontal.
The company beat over 88 entries. Clothing brand Armadillo Merino, branded pram wrist straps Buggytug and frozen cocktails Rocktails were among the six shortlisted.
Alison Grieve, founder of Safe Tray Products, said: "It's amazing to have this kind of support and it will truly help me with the ambitions I have for my business.
"I am hugely grateful to be given access, free of charge to the best marketing talent in the industry."
Ian Millner, chairman of the MAA and panel member, said: "The calibre of pitches we saw was outstanding, with each business idea having great potential. However, we awarded free marketing services to Safe Tray as we saw Alison’s idea as having huge potential to help the industry.
"She is a spirited young women whose drive and ambition has enabled her to get this far. With the help from professional marketers, I believe her business can go on to achieve great things, not just here in the UK, but across the globe."
The Government-backed Start Up Britain initiative encourages new and existing businesses to develop.