About Us


Our History:

Offering janitorial services since 1988, COS Janitorial Services, Inc. expanded to the Tampa Bay area since 2000. With over 25 years of experience, we accommodate to your business needs.

Our company is certified as a Small Local Business Enterprise (SBE) and Minority Business Enterprise (MBE) with the Hillsborough County and the City of Tampa. As of 2015, COS Janitorial is registered as a certified member with BSCAI.



Our Services:

We provide janitorial services to any type of commercial building. Some of the services are:

  • Commercial Cleaning Services
  • Extraction Carpet Cleaning
  • Stripping and Waxing
  • Hard Tile Scrubbing

Our Clients:

“Mr. Oscar Pineda and his team have provided high quality service and an unmatched level of responsiveness. COS Janitorial is extremely professional and does a fine job of keeping our health care facilities clean, fresh, and appealing to our patients and visitors.”
Josehph M. Jackson
Director of Managed Care & Clinical Facilities
USF Health

“Mr. Pineda has been most helpful in providing cleaning services for our 80,000 sq. ft. office building. His level of service remains steady and consistent and is very accommodating for extraordinary needs when we have special requests.”
Katherine Papastavrou
General Manager
Westshore Business Executive Center

“As a medical facility, we have special needs in terms of infection control and constant cleaning of every floor of our seven floor building. COS has exceeded our expectations. They have been very responsive to our requests. The highest compliments for the appearance and cleanliness of our facility have come from our patients, staff, faculty and even the USF President, Judy Gengshaft.”
Kathy Shoemaker
Manager, Facilities & Security
USF South Campus