• 1901 establishments in the British Empire (13 C, 5 P)
• 1901 establishments in England (109 P)
• 1901 establishments in Ireland (1 C, 18 P)
• 1901 establishments in Scotland (48 P)
• 1901 establishments in Wales (10 P)

C

• British companies established in 1901 (17 P)

R

• Railway stations in the United Kingdom opened in 1901 (1 C)

A

• Advertising World
• Aird baronets

B

• British Brothers' League
• British Institute of Professional Photography
• British Psychological Society
• British Standards
• BSI Group

C

• Camping and Caravanning Club
• City of London Yeomanry (Rough Riders)
• 3rd County of London Yeomanry (Sharpshooters)

E

• Electrical Contractors' Association

H

• Hulme Hippodrome

L

• Linguaphone (company)

M

• Mostyn (gallery)
• Motor Cycling Club

N

• National Small-bore Rifle Association

P

• Paxo
• Professional Golfers' Association (Great Britain and Ireland)

R

• Royal Aero Club
• Royal African Society
• Royal Family Order of Edward VII
• Royal Marines Volunteer Cadet Corps
• Royal Navy Submarine Service
• Royal Society for Asian Affairs

S

• Skiff Racing Association
• The Socialist (SLP newspaper)
• Society of Painters in Tempera

T

• Tatler

U

• United French Polishers' Society

V

• The Victoria League for Commonwealth Friendship
• Volunteer Cadet Corps

W

• Westminster Dragoons