Most importantly, OZK has been a huge sub-contracting group but we can make a better suggestion than other major cleaning contractors. OZK has adapted the strong points from the major contractors (cost, reliability, insurance, and the management system etc.) and also from small local sub-contractors (actual work force). OZK has been striving hard to re-distribute the profits to the clients and the cleaners by cutting out the middle company. We strongly believe that our business together will increase the benefit of your company by a competitive price and quality of the work and also the quality of the life for our employees.