ISO 27001 is an international recognized standard that specified requirement for establishing, implementing, maintaining and information security management system (ISMS) in a company.
Complete name, information security - Security techiques - Informations security management systems - Requirements.
ISO 27001 consists of 2 parts: Main part of standard and Annex A 114 controls
The requirements clauses 0-10 + Annex A 114 controls = ISO 27001.