Thai organic agriculture has gone through different stages of development and may have now begun with its growth stage. The export orientation has been the key pull factor fueling its development but domestic market appears to play an increasing role, especially among the fresh organic fruits and vegetables sector. The private sector’s role in organizing the organic supply chain is key to its success. But lack of knowledge and skills in the supply chain management may become the bottleneck in the future development of the Thai organic industries, especially the extension support activities to small-scale farmers. Sharing of knowledge and experiences through various means may help to overcome this constraint. Supporting researches need to be better coordinated to address the needs of the private enterprises in organizing the organic supply chains as well as those of organic farmers.