WorkTree.com IS WorkTree.com really verified - not ?? Houston Texas

I was referred to 'WorkTree.com' by another online search firm (AAM Associates) I'm leery of working with online firms not in my state. I checked w/ the Better Business Bureau (online edition) and saw nothing. I then went online to the Houston phone book and only found a local and 800#. I then tried wikipedia.org and found nothing. In Google I read a summary of this bizz, that said it was privately owned, 10-100 employees, and revenues around $10million. I then saw Google entries of two addresses:
- 3823 Gramercy Dr Houston 77025
- 2351 Dunstan, " 77005
In Google Earth Maps I looked at these addresses and both clearly appeared to be private homes (not a building were 100 people could work).

Then today, I received online an email from supposedly another Placement Agency who suggested I check-out WorkTree. Why would an agency refer a candidate to another agency ??

Therefore, I question if WorkTree.com is an honest placement firm.
I likely will file a complaint with the Better Bureau of Houston.

For now, I'm not sendint WT any money and suggest you be cautious too.
~ Mpls

Mpls
Minneapolis, Minnesota
U.S.A.