Nie wiem, czy lista jest pelna.
English club owners who own other clubs.

Manchester City - City Football Group
New York City FC (80%)
Melbourne City FC
Yokohama F. Marinos (20%)
Club Atlético Torque
Girona FC (44.3%)
Sichuan Jiuniu F.C.

Cardiff City - Vincent Tan
FK Sarajevo
Los Angeles FC (co-owner and director)
K.V. Kortrijk

Charlton Athletic FC - Roland Duchâtelet
Újpest FC
AD Alcorcón
FC Carl Zeiss Jena

Reading - Dai Yongge
Beijing Renhe
K.S.V. Roeselare

Arsenal FC - Kroenke Sports and Entertainment
Colorado Rapids

Arsenal FC - Kroenke Sports and Entertainment
Colorado Rapids

Brighton & Hove Albion - Tony Bloom
Union Saint-Gilloise

Watford - Pozzo Family
Udinese Calcio

Barnsley - International Investment Group
OGC Nice

Brentford FC - Matthew Benham
FC Midtjylland

Nottingham Forrest - Evangelos Marinakis
Olympiacos F.C.

Sheffield United - Abdullah bin Musa'ed(50%)
KFCO Beerschot Wilrijk

Swansea City - Jason Levien (68%)
D.C. United

Salford City F.C. - Peter Lim(40%)
Valencia FC