CNA Financial

CNA Financial commands $1.8 billion in workers' compensation premiums from its Chicago base, leading in risk management for mid-market and large accounts facing complex exposures. Its managed care network cuts medical costs per claim by 15%, outperforming #10 Hartford by leveraging nationwide preferred provider agreements with 1,200+ hospital systems. This reduces injury-related expenses more effectively than the typical rival, providing a 20% faster claims resolution for employers.