Delaware Investments was a US-based asset management firm with $174.2 billion in assets under management as of September 30, 2016 ^[2] with 132 portfolio managers, analysts, and traders. It is a wholly owned subsidiary of Macquarie Group, an Australian global financial services group.

In April 2017, Delaware Investments was rebranded as Macquarie Investment Management, effectively ending the original entity.^[3] The US funds continue to be managed under the "Delaware Funds by Macquarie" brand. In 2020, Macquarie Investment Management began acquisition of Overland Park, Kansas based asset manager Waddell and Reed (Ivy Funds). ^[4]

This article is in list format but may read better as prose. (February 2021)

Delaware Investments commenced business in 1929 and introduced its first mutual fund in 1938.

Delaware Investments introduced institutional separate account management in 1972. Its Taft-Hartley business established 1974.

In 1990 Delaware Investments established its International/Global capabilities.

In 2000, Delaware Investments enhanced its the fixed income capabilities and in 2007 it launched Delaware Investments Global Funds plc.^[5]

Macquarie Group acquired Delaware Investments, previously a division of Lincoln Financial, in 2010 for a reported $452 million cash deal.^[6] In 2017, the company became Macquarie Investment Management, a business unit of the Macquarie Group.^[7]