Related Company: Local Private and Public Sector Employers now able to offer easy, affordable, and personalized healthcare to employees and their families via Marathon Health Networks Vermont Business Magazine Marathon Health, the Winooski-based leader in onsite, network, and virtual health centers for employers of all sizes, has announced its expansion into Columbus, Ohio with the opening of its newest Network, including three health centers. The first location, based in Grove City, is open now, with two more locations opening in Hilliard and the Easton area by June. All Marathon Health Network health centers share the same focus: to provide exceptional, personalized care for employees and their families while reducing the overall cost of healthcare for employers.