Optimum Security Group provides a range of security services including manned guarding, remote monitored CCTV, access control systems, mobile patrol and response services, and key holding. It aims to tailor its services to client needs and budgets. Optimum emphasizes quality standards including ISO 9001 certification, SIA Approved Contractor Scheme membership, and health and safety compliance. It seeks to identify cost savings through innovative technologies like Mocotouch and PIR alarm systems.