Medical billing service owners are not members of unions, but they can join the Healthcare Business Management Association and the American Medical Billing Association, which provide certification, continuing education, and other resources. The Centers for Medicare & Medicaid Services provides information about government insurance programs and health care statistics.
- Animal Trainers
- Antiques and Art Dealers
- Aromatherapists
- Artists
- Auctioneers
- Automotive Dealership Owners
- Automotive Dealership Sales Managers
- Barbers
- Bed and Breakfast Owners
- Bloggers
- Brewers
- Caterers
- Chief Executive Officers
- Child Care Service Owners
- Cleaning Service Owners
- Computer Support Service Owners
- Construction Managers
- Cosmetics Shop Owners and Managers
- Cosmetologists
- Driving School Owners and Instructors
- Edupreneurs
- Entrepreneurs
- Export-Import Specialists
- Farmers
- Film and Television Producers
- Financial Planners
- Financial Services Brokers
- Franchise Owners
- Gallery Owners and Directors
- Green Products Manufacturers
- Gunsmiths
- Health Club Owners and Managers
- Home Stagers
- Illustrators
- Information Brokers
- Interior Designers and Decorators
- Internet Consultants
- Internet Marketing and Advertising Consultants
- Internet Store Managers and Entrepreneurs
- Lawn and Gardening Service Owners
- Life Insurance Agents and Brokers
- Literary Agents
- Motivational Speakers
- Personal Chefs
- Pet Sitters
- Photographers
- Podcasters
- Real Estate Developers
- Retail Business Owners
- Songwriters
- Sports Agents
- Wedding and Party Consultants
- Writers