OCS is the largest family owned facilities management services company in the world, with over 72,000 employees. From getting ... passengers to their flights on time at the world’s busiest airports, to keeping lights on in offices large and small, we are trusted by over 20,000 clients around the globe to provide 70 internationally accredited essential and sustainable facilities management services, 24 hours a day. Find out more at www.ocs.com and www.ocs.com/annualreview read more