Isabel Maxwell is a British technology entrepreneur, software executive, and filmmaker, born on August 16, 1950, in Maisons-Laffitte, France. She is the eldest daughter of media mogul Robert Maxwell and sister to Ghislaine Maxwell, and grew up in a prominent family marked by her father's controversial business empire. She was previously employed in family businesses. Following Robert Maxwell's death in 1991 and the subsequent collapse of his companies, which led to significant financial scandals involving her brothers Ian and Kevin, Isabel transitioned into the tech and internet sectors. She co-founded Chiliad Inc. in 1997 with her twin sister Christine Maxwell, developing advanced search and data mining software used by organizations like the FBI and NASA for intelligence and knowledge management applications. She has been involved in various Silicon Valley ventures.