BNY Investments Mellon | 8,395 followers on LinkedIn. BNY Investments Mellon is a global leader in index management and one of the world’s largest institutional index managers by assets under management. Since 1983, BNY Investments Mellon’s dedication to precision and client partnership has gone beyond the benchmark. Our storied history of innovation can be tracked back to the 1970s to founders William Fouse and Thomas Loeb, widely recognized as pioneering developers and champions of indexing.