noun which may take the genitive case particle 'no'
company-established; corporate
Used attributively with の to describe something founded, set up, or run by a company, such as a school, hospital, or training program.
This hospital is a company-established facility.
I received training at a corporate training center.
Compound of 会社 (company) and 立 (establishment). The reading りつ for 立 follows the pattern of other establishment terms like 私立 (しりつ) and 公立 (こうりつ).