Signature Facility Management , a sister company of Capstone Investment Group SAL, provides its clients with exclusive Maintenance and Property Management services expected of high-end sophisticated towers and buildings. Signature has a team of highly-skilled professionals who ensure our properties are operating in the most efficient and cost-effective manner. Quick responses, thoughtful decisions and attention to detail, along with strong working relationships with tenants and vendors, help make our buildings exceptional. Signature aims to go above and beyond the call-of-duty by providing hassle-free experience to our clients through first-class services 24/7.