Founded by Mme Charlotte de Géry with a small group of parents and friends, the school originally opened its doors to nine students.

[5] As the culmination of a multi-year research and rebranding project, in 2020, ISTP's name was officially changed to Silicon Valley International School (INTL).

Barbara was integral to the development and planning for the successful execution of INTL’s International Baccalaureate Middle Years Programme (MYP).

[citation needed] In 2023, Greiner was awarded the Ordre des Palmes Académiques at the level of Chevalier from the French government.

The award ceremony took place during a school-wide event on INTL's Cohn Campus in Palo Alto and was presented by Frédéric Jung, the Consul General of France in San Francisco.