Previously, there was a school in Chicago, and three others in California: Santa Monica (2007–2014), Sacramento (1980–2004), and San Francisco Bay (est.

[6] Delphi Academy of Los Angeles serves preschool through high school in Lake View Terrace, California.

[10] Delphi's publishing arm operates under the assumed business name of Heron Books,[11] whose offices are located on the Delphian School campus.

The 2024 lawsuit alleged that Delphi's head knew of abuses yet failed to take action, fire, or report the incidents to police or authorities.

Instead, Delphi waited until the man's contract expired and then recommended him for a position at another school, at which he continued to sexually abuse minor boys.