Oxford Financial Group, Ltd.
- Offering fee-only, financial and investment advisory services, and wealth management for families, individuals, and institutions.
- http://www.ofgltd.com

The Omega Securities, Inc.
- Full service investment advisory firm providing portfolio management and financial planning services.
- http://www.omegasecurities.com/

Old Dominion Capital Management, Inc.
- Independent investment counsel, wealth management services, including asset management, estate and financial planning.
- http://www.odcm.com/

O'Brien Capital Management
- Independent, fee-based registered investment advisory firm providing financial planning and money management services to individuals and corporations.
- http://www.ocmi.biz/

Obermeyer Asset Management Company
- Core business is investing for individuals, corporations and foundations.
- http://www.obermeyerasset.com/

OakBrook Investments, LLC
- A registered investment advisor specializing in domestic large cap equity investments.
- http://www.oakbrookinvest.com

Old Mutual plc
- International asset management firm.
- http://www.oldmutual.com/

Okada Group LLC
- Designs and manages investment portfolios.
- http://www.okadagroup.com/