ChekPro
- Provides verification and collection of returned checks.
- http://www.chekpro.com/

Checkmatic Recovery Systems
- Offers NSF check collection and bank draft services.
- http://www.collectnsfchecks.com/

Net 30 Solutions
- Providing free bounced check recovery via e-commerce.
- http://www.net30solutions.com

Check Guarantee Services
- Buys customer NSF checks.
- http://arizona.speedchoice.com/~rcrandall/nsf/nsf.htm

Checkcare Systems
- Columbus, GA, check authorization, guarantee, and, collection service.
- http://www.checkcare.com

Check Alert Systems, Inc.
- Collection agency offering bad check recovery as well as check and age verification at point of sale.
- http://www.checkalert.net/

Check Assist
- Electronic check representment and check collection software.
- http://www.checkassist.com