The Royal Forestry Society: http://www.rfs.org.uk/

The Forestry Contractors Association: http://www.fcauk.com/

Confederation of Forest Industries: http://www.confor.org.uk/

Institute of Chartered Foresters: http://www.charteredforesters.org/

The Woodland Trust: http://www.woodlandtrust.org.uk/

The NFU Countryside: http://www.countrysideonline.co.uk/

The Forestry Commission: http://www.forestry.gov.uk/

British Trees: http://www.british-trees.com/

The British Christmas Tree Growers Association: http://www.bctga.co.uk/

Safecontractor: http://www.safecontractor.com/