- Center for Financial Services Innovation
- Center for Retirement Research
- Centers for Disease Control
- Centers for Disease Control and Prevention
- Centers for Medicare and Medicaid Services
- Centrelink Master Program
- Certified Financial Planner Board of Standards
- CFPB
- Champion Mortgage
- Charles Schwab
- Chattanooga Times Free Press
- Cherry Creek Mortgage
- Cherry Creek Mortgage Co.
- Chicago Architecture Foundation
- CIBC Bank
- City of Baltimore
- Class Valuation
- Clear Capital
- Click n’ Close Inc.
- Clinton Foundation