Hospitals, nursing homes, professional sports facilities, cruise ships — Clean Sweep Group, Inc (CSGI) has disinfected it all. CSGI was founded in 2011 by healthcare industry veterans Leo Williams and Mark House with the belief UV-C could reduce the risk of infection in a variety of settings.

Along the way, CSGI participated in two peer-reviewed clinical trials showing significant reductions of hospital-acquired infections (HAIs).1,2 In one study, the hospital saved over $1.2 million in excess HAI cost using CSGI.2

During the SARS-CoV-2 pandemic, CSGI disinfected their partner hospitals and expanded use of the technology in commercial settings.

CSGI disinfects an Emergency Room with OhmniClean.

As of 2022, CSGI is using autonomous UV-C robots by OhmniLabs (San Jose, CA) for surface and air disinfection. The robots deliver precise UV-C dosage over a large area in minutes, leading to disinfection consistency unmatched by human cleaners.

Notable CSGI Customers: Los Angeles NBA franchise practice facility; Southern California Hospital, Culver City, CA; Royal Caribbean Cruise Lines, Miami, FL; West Hills Medical Center, West Hills, CA; USC Verdugo Hills Hospital, Glendale, CA; Providence Holy Cross Medical Center, Mission Hills, CA; Nicklaus Children’s Hospital, Miami, FL; Boca Raton Regional Hospital, Boca Raton, FL; Centinela Hospital, Inglewood, CA; Hospital Sisters Health System, Springfield, IL; Dignity Northridge Medical Center, Northridge, CA; CA; Mission Community Hospital, Panorama City, CA; Wavestream Corporation (Electronic Manufacturing Facility), San Dimas, CA; Various Office buildings, Los Angeles, CA; Gelson’s Market Corporate Offices, Tarzana, CA; Private homes, Los Angeles, CA and Washington D.C. area

Mark House, Leo Williams, Cody Haag

Leadership Team

Leo W. Williams II, CEO and President

Leo Williams is the Chief Executive Officer (CEO) and President at Clean Sweep Group, Inc., where he is responsible for the vision and strategy of the company. Leo has 25+ years of experience working in clinical settings as a medical sales representative, and has received numerous awards for his performance. He is a graduate of the U.S. Naval Academy and earned a Bachelor of Science.

Mark House,  Executive Vice President of Operations

Mark House is Clean Sweep Group, Inc.’s Executive Vice President of Operations where is he responsible for the day-to-day operations and strategy of CSGI. Mark brings 20+ years of experience in the medical field to the company and has worked in an array of sales positions in the medical industry. He has earned multiple awards for his outstanding performance and is a graduate of the U.S. Military Academy with a Bachelor of Science.

Cody Haag, Vice President of Research and Development

Cody Haag, CSGI’s Vice President of Research and Development, completed his Bachelor of Arts at UCLA in 2011. Shortly after he began working for CSGI to design, test, and implement UV-C disinfection protocols. He has authored articles published in AJIC, Prevention Strategist, and more.