Managed service company (MSC) differ from personal service companies (PSC) as it's the MSC that manages and controls the affairs of the business, not the contractor. ExterNetworks Inc. is a managed technology services provider since 2001. We provide End-to-end solutions featuring Design, Deployment and 24/7 IT support. Battle-tested and performance-proven professionals down the street and around the world give us capacity that is unequalled. With offices around the world, more than 500 full-time employees and over 1000 field technicians, we deploy help and solutions in a hurry.