[ RadSafe ] source suppliers

[KARAM, PHILIP]

Hi everyone - I'm having some trouble helping a colleague find a manufacturer for the following sources and was wondering if anyone can help me to figure out who I can contact for a price quote. All sources would be for a licensed organization and all would be less than 1 mCi (37 MBq) in activity. The nuclides desired are:

Pu-239
U-235
Th-232

I've already tried Eckert and Ziegler (Isotope Products) and QSA Global. I was thinking of JL Shepherd, but don't know if they make such low-activity sources. Anyhow - any suggestions would be welcome, and thanks!

Andy