Kelly's Chrysler
- Automobile dealer. New and used cars, trucks, vans, SUVs. Online inventory.
- http://kellys.fivestardealers.com/

Loretel
- Cable service, telephones, fax machines, long distance carrier, 800/888 numbers for business, Internet access. Offices in Ada and Pelican Rapids.
- http://www.loretel.com/

American Federal Bank
- Personal and business banking. Checking, savings, loans, credit cards, IRAs. Member FDIC.
- http://www.americanfederalbank.com/ada.htm

Ada Economic Development Authority
- Information on starting a business or building a house in Ada. Includes zoning map, links to local lenders.
- http://www.ci.ada.mn.us/Economic.htm