UK
Great Dixter
Hillier Tree
Royal Horticultural Society
http://www.greatdixter.co.uk/
https://www.hillier.co.uk
https://www.rhs.org.uk/
Japan
CAINZ Ltd.
Ecotool Market Co.
lmperial Hotel
Lee Japan
Myself ABAHOUSE
Takii Seedling Company Ltd.
http://www.cainz.co.jp/en/about/
http://www.ecotoolmarketco.com/index.html
http://www.imperialhotel.co.jp/e/index.html
http://lee-japan.jp/
http://myselfabahouse.com/
http://www.takii.co.jp/
Great Eastern Japan Earthquake disaster reconstruction aid activity groups
TERP London
http://terp-london.co.uk/
3.11Garden Charity
Green Fields
http://www.bises.co.jp/charity/index.html
http://g-fields.blogspot.jp/