Formerly Amvescap PLC, the owner of the UK investment house, Invesco Perpetual, is one of the largest money managers in the world.
Renamed Invesco after moving from London.
The assets under management are vast:
http://www.invesco.com/corporate/dam/jcr:d97b217c-9b9a-4fcc-946c-698e359c0954/2016_11_09_aum.pdf
assets under management (AUM) of $807.5 billion