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

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

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

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

LJS Collections
Specialists in NSF check collection.
http://ljs_collections.tripod.com/

National Check Recovery, LLC
Collects NSF checks through the use of affiliated collection attorneys.
http://www.ncrmerchantservices.com/

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