http://www.soilassociation.org/trade/getinvolved/organictradeboard
Soil Association : Organic Trade Board

Organic Trade Board

The Organic Trade Board (OTB) is a not-for-profit organisation coordinated by business leaders from across the UK’s organic industry to develop, promote and support organic trade in the UK.

Their vision is a network where businesses are openly able to trade, share information and utilise the resources available from other members of the organic community.