OcchNet Ltd. Assists occupational health, safety, and hygiene providers implement practical health & safety solutions, reduce risk, and improve compliance. http://www.ldb.co.uk/healthandsafety.htm

O'Connor Health Care Consulting Offers health care consulting, marketing communications and policy analysis services to healthcare industry, insurance and consumer advocacy clients. http://www.oconnorhealthanalyst.com/

Operating Room Management Consultants Provides operational management, program development, utilization analysis, and staffing support to reduce operating room costs and increase productivity. http://www.operatingroomconsultant.com/

OB-GYN Consulting Consulting services for physicians, pharmaceutical organizations, and medical device companies. Programs include advice on clinical trials, expert trial testimony and malpractice claims review, practice management, and business consultation. http://www.obgynconsulting.com

Oxford Health Consulting Specializes in applying research evidence to health practice. http://www.oxfordhealth.co.uk/

Optimal Insights Assists health care organizations in the utilization of networking technology to deliver services by sending medical information securely over the Internet. http://www.optimalinsights.com/

Orton Evaluates feasibility of technological applications for rehabilitation medicine; site includes links to relevant research resources. http://www.orton.fi/

Oncology Associates Provides consulting assistance to community and academic hospital cancer programs; services include identifying service gaps,coordinating fragmented service, and facilitating joint physician/hospital and multi-hospital cancer care operations. http://www.oncologyassociatesinc.com/

Ofstead Insights Provides support in clinical and marketing communications to healthcare organizations; services include expert analysis, research, customized seminars, and relevant publications. http://www.ofsteadinsights.com

Natural Bridge Provides consulting assistance to the nutraceutical and functional food markets; resources include investment banking and equity access support. http://natbridge.com