The 400 School, Inc.

The 400 School, founded in 1996 by Dan Riehl, specializes in IBM i, iSeries and AS/400 technical training. The school offers live, hands-on education in areas such as IBM i operations, administration, security and programming languages like RPG IV, RPG III, COBOL and Control Language. It partners with SecureMyi.com to provide top-tier security and auditing training. The school offers both in-person and online courses, catering to individuals and corporate groups. Known for its expert instructors and customized training, the 400 School serves large corporations worldwide. Dan Riehl, an author and technical editor, leads the school, bringing extensive experience and expertise to its educational offerings. This approach ensures high-quality, relevant training for professionals working with legacy IBM systems.