Montana Associated Technology Roundtables
- Provides networking and information opportunities to entrepreneurs, investors and professionals in Montana and the Inland Northwest region.
- http://www.matr.net/

Retail Montana
- Directory of Montana based businesses and organizations promoting businesses statewide.
- http://www.retailmontana.com/

Northern Fire
- Design, installation, monitoring, and inspection of intercom, fire alarm and security systems. Locations in Kalispell, Billings, and Missoula.
- http://www.northernfire.com/

Airtel Montana
- Combines cell phone and radio like Nextel. Offers dealer locator and map of coverage area.
- http://www.airtelmontana.com/

Renewable Energy Businesses in Montana
- A comprehensive directory for renewable energy businesses and resources.
- http://energy.sourceguides.com/businesses/byGeo/US/byS/MT/MT.shtml

Northwestern Energy
- Provides electricity, natural gas and has coal and telecommunications operations. Features a map of states served.
- http://www.northwesternenergy.com/

Montana Business Directory
- A guide to statewide businesses and services. Features an auction calendar.
- http://www.businessmt.com

Explore Montana
- Featuring a searchable database for all types of businesses in the state.
- http://www.montana.com/territories/commerce/

Montana Business Connections
- Business resource directory.
- http://www.mbc.umt.edu/

Northwest Montana Information.
- A directory of links to statewide resources and businesses.
- http://www.nwmontana.com/