http://www.ihgs.ac.uk/     IHGS  Institute of Heraldic and Genealogical Studies

https://www.agra.org.uk/ AGRA  Association of Genealogists & Researchers in Archives

http://www.sog.org.uk/ Society of Genealogists

https://www.theheraldrysociety.com The Heraldry Society

https://www.whitelionsociety.org.uk/ The White Lion Society