The Owl Box - Wildlife boxes for owls, birds of prey, bats, hedgehogs and garden birds; order by post with order form. - http://www.theowlbox.co.uk/
The Nest Box Company - UK manufacturer of all types of specialist nesting boxes for British wildlife - for birds, mammals, and owls. Selling nest boxes to trade and direct to the public. - http://www.nestbox.co.uk/
Stag Electronics - Bat detectors, books and CDs of bat echolocation, for sale, plus downloads of bat sounds and bat music. - http://www.batbox.com/
Landlife Wildflowers - The trading arm of Landlife, a wildflower conservation charity, grows and supplies native wildflower seeds and plants. - http://www.wildflower.org.uk/
British Wildflower Plants - Offer over 400 species of native British plants; site features searchable database with photographs and downloadable catalogue. Mail-order service available. - http://www.wildflowers.co.uk/
Yellow Flag Wildflowers - Wildflower seeds, bulbs and plants native to or naturalised in the British countryside. - http://www.wildflowersuk.com/
Scott's Wildflowers - Native wildflowers by mail order from Cumbria nursery, with advice on creating woodland, wetland and meadow habitats for both plants and wildlife. - http://www.scottswildflowers.co.uk/
Naturescape - 40-acre wild flower farm offering plants and seeds by mail order, and information for prospective visitors. - http://www.naturescape.co.uk/