Help with SUMIF
 

I have a formula that uses SUMIF to calculate billing for different customers
=SUMIF(Mar!$C$2:$C$999,"Bass*",Mar!$G$2:$G$999), which is working fine. A
company changed it's name so now I need to look for 2 conditions
so it should look for "Bass*" or "Barb*". Is there a way to do this or
another function that can evaluate 2 conditions and add if either is true?