Royal College of Surgeons of Edinburgh, 1505 -

• Corporate body
• 1505 -

Royal College of Physicians, 1518 -

• Corporate body
• 1518 -

Royal College of Physicians of Edinburgh, 1681 -

• Corporate body
• 1681 -

Royal College of Paediatrics and Child Health, 1928 -

• Corporate body
• 1928 -

Royal College of Obstetricians and Gynaecologists, 1929 -

• Corporate body
• 1929 -

Royal College of General Practitioners, 1952 -

• Corporate body
• 1952 -

Royal College of Anaesthetists, 1948 -

• Corporate body
• 1948 -

Royal Air Force, Great Britain, 1918 -

• Corporate body
• 1918 -

Robson Books Ltd.

• Corporate body

Road Research Laboratory, UK Government.

• Corporate body
• 1933-1972