Guardian Group Services staffs highly-trained and certified professional security guards to major security firms across the American Northeast and Midwest, recruiting and training guards perfectly suited for the needs of major security firms that provide contracted security personnel. At Guardian, we act as an extension to your own HR department. We deliver superior results through our customized approach. Our security guard training school is approved by the New York State Department of Criminal Justice System and top-ranked in New York City. - Deep Pool of Qualified Candidates - On-Site Training School - OSHA Certification Program - Customized Security Job Candidates - Proprietary Recruitment & Training Systems