A.) They're reputable. RedBeacon was a darling of the startup world in 2010 and acquired by HoDe at the beginning of 2012.
B.) They use your SS# for background checks. If they're sending you to someone's home, they want to know you are who you say you are and aren't a security risk.
I know lawn & landscape marketing, branding, and web strategy. I'm not anonymous, I just don't self-promote.