Keffer Development Services, LLC Latest Press Releases https://pressroom.prlog.org/kefferdevelopment/ About Keffer Development Services, LLC - We develop custom software systems and specialize in software for athletic trainers. ATS (The Athletic Trainer System) Releases comprehensive student health features https://www.prlog.org/13130049-ats-the-athletic-trainer-system-releases-comprehensive-student-health-features.html ATS (The Athletic Trainer System) Releases comprehensive student health features. Grove City, PA – ATS today announced the launch of its comprehensive student health update.Fri, 27 Feb 2026 14:50:45 GMT