Founded in 1985 as Premier International and rebranded in 2025, Definian combines four decades of trusted results with the energy of an AI-enabled future. We are proud to be recognized as one of Crain’s Best Places to Work in Chicago® and to be consistently named to the Inc. 5000 list for growth.

Definian is an EEO Employer and provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.