Is convergent outsourcing legit? Convergent Outsourcing, Inc is a real, legitimate company. Originally founded in 1950 in Washington, currently headquartered in Renton, WA, they are one of the largest debt buyers (collection agencies) in the US. With roughly 1200 employees, they generated over $100 million in revenue in 2019.What is convergent outsourcing phone number? If you want to respond to a call from our representatives, you may dial the Convergent number which called you initially or call our 1-800 number, 1-800-444-8485. If you’ve received a call from Convergent Outsourcing but don’t recognize any of the above phone numbers, that’s okay.What is a convergent resource? Convergent Resources, Inc. Convergent Resources, Inc. was established in 1998. Convergent does customer care outsourcing, receivables management (fancy term for collections). They work everything from cable to healthcare to commercial debt.