Sixteen small suppliers presented their credentials to Jan Matthews, head of catering for LOCOG, the London 2012 organising committee, on Monday.
Local sourcing was "integral" to food planning for the Games and further meet-the-buyer events were planned, she added.
The plans are expected to head off concern that the 2012 Games will be dominated by US-based 'junk food' brands.
Matthews defended the £1bn sponsorship tie-up with McDonald's, Coca-Cola and Cadbury: "The bottom line is the Olympic Games would not happen without these guys and they have been hugely supportive of our food vision."
The 16 suppliers included Sharpham Park, Rannoch Smokery, The Anglesey Sea Salt Company and Hants-based artisan bakery Nisi, which also won triple gold at this week's Great Taste Awards for its "British" amaretti biscuits.