[3] Adtalem Global Education was a successor to two separate entities: DeVry Institutes and the Keller-Taylor Corporation, doing business as Keller Graduate School of Management.

DeVry Technical Institute was acquired by the Bell & Howell company in 1966, and became part of its Education Group division.

In 1987 Keller-Taylor acquired the DeVry Institutes from Bell & Howell and merged it with Keller Graduate School of Management.

[4] In 2011, DeVry continued its international reach with the acquisition of ATC International (a subsidiary of Becker Professional Education), which provides professional finance and accounting training in Central and Eastern Europe as well as Central Asia; and American University of the Caribbean, a medical school located in St.

[8] In December 2018, Adtalem completed transferral of DeVry University and Keller Graduate School of Management properties to Cogswell Education LLC.

[11] In September 2020, Adtalem Global Education Inc announced that it began the process of purchasing Walden University for US$1.48 billion in cash.

[12] According to Higher Education Dive "Two investment firms, Engine Capital and Hawk Ridge Partners, wrote in an open letter...that they were "severely disappointed" with the board's decision to purchase Walden, calling the college a 'substantially inferior asset.

[20] In January 2016, The Federal Trade Commission filed a lawsuit against DeVry Education Group alleging false or misleading advertising.

[23] In December 2017, a former administrator filed a civil lawsuit number with the Los Angeles Superior Court, seeking relief for a number of causes of action including Retaliation and Wrongful Termination in Violation of Public Policy for complaining about an incentive-based compensation program that rewarded campus deans for recruiting and enrolling students.