{{Infoboks virksomhed | wikidata = alle}}
'''London Stock Exchange Group plc''' eller '''LSEG''' er en [[Storbritannien|britisk]] [[børs]]- og [[finans]]informations-virksomhed med hovedkvarter i [[City of London]]. De ejer [[London Stock Exchange]], [[Refinitiv]], LSEG Technology<ref>{{cite web|title=LSEG MillenniumIT Acquisition|url=http://www.lseg.com/sites/default/files/content/documents/lseg-millenniumit-acquisition-sep09.pdf|publisher=London Stock Exchange Group|access-date=30. november 2013|archive-date= 4. marts 2016|archive-url=https://web.archive.org/web/20160304094923/http://www.lseg.com/sites/default/files/content/documents/lseg-millenniumit-acquisition-sep09.pdf|url-status=dead}}</ref> og [[FTSE Russell]]. De har majoritetsejerskab i [[LCH (clearing house)|LCH]] og [[Tradeweb]].
Organisationer