Brewers of Indiana Guild
- Non-profit trade group focused on educating the public about the quality and variety of beer produced in Indiana. Includes member breweries, calendar of events, news, legislation, and merchandise.
- http://www.brewersofindianaguild.com/

Associated General Contractors
- Member services include safety training, labor relations advice and insurance.
- http://www.agcin.org/

Associated Builders and Contractors
- A professional construction trade association dedicated to the merit shop philosophy and to the free enterprise system.
- http://www.abc-indy.org/

APICS Michiana
- The Indiana and Michigan chapter of a group for inventory and production control managers offers downloadable application forms.
- http://www.apics-michiana.org

Northwest Indiana Small Business Development Center
- Aim to create, or keep, jobs in the region by assisting small businesses. Includes information on resources, special events, training programs, partners and sponsors.
- http://www.nwisbdc.org/

Indiana Small Business Development Corporation
- Assisting with small business development and growth with information on marketing, women in business, minority owners, small business incubators and loans.
- http://www.isbdc.org/

Indiana Chamber of Commerce
- Includes business news, membership benefits, conference information, and information on legislation.
- http://www.indianachamber.com/

American Council of Engineering Companies of Indiana, Inc.
- A professional trade association of Indiana's premier consulting engineering firms.
- http://www.acecindiana.org/

Indiana Grantmakers Alliance
- A resource dedicated to advancing philanthropy throughout Indiana.
- http://www.indianagrantmakers.org

Indiana Credit Union League
- An association of credit unions with information on credit unions, job opportunities, locations and contacts.
- http://www.icul.org/

Indiana Manufacturers Association - 2002
- Represents manufacturing concerns before state legislative bodies, provides consulting services and professional development workshops and publications.
- http://www.imaweb.com/

Asphalt Pavement Association of Indiana
- Trade association for asphalt pavement producer contractors. Features news, technical data, scholarships, and related links.
- http://www.ind-asphalt.com/

The Indiana Bowling Centers Association (IBCA)
- A state wide association of bowling centers.
- http://www.indianagobowl.com/

Indiana Retail Council
- A state wide trade association that repersents the interest of retailers before the Indiana General Assembly.
- http://www.indianaretailers.com/

Indiana Telecommunications Association (ITA)
- A non-profit trade association representing the telecommunications industry.
- http://www.itainfo.org/

The Mechanical Contractor's Association of Indiana
- A statewide trade association established to represent and service its members in the mechanical industry.
- http://www.mcai.com/

Indiana's Health Industry Forum
- A not-for-profit organization working to position Indiana as a premier state for the creation and growth of health industry enterprises.
- http://www.ihif.org

Indiana Association of Building Officials, Inc.
- A not-for-profit organization committed to the development of those charged with the life safety provision of building related codes.
- http://www.iabo.com