Yes here are some breeders that I trust.
Bob Futo
I have bought from Bob before and he has some of the best Surinames around. I would also buy from Bob with out seeing the boa first. bfconstrictors@sbcglobal.net
Casey & Darla Hulse. These two are friends of mine and I would buy from them with out even seeing the boa first.
They may have some Surinames. http://www.nsreptiles.com/
These are breeders that I have talked to but never bought from yet but I would trust them. I will buy form a few of them in the future.
Gus has some of the healthiest boas you can buy. You may pay a little more but you will get one of the best looking and healthiest boas money can buy.
http://www.riobravoreptiles.com/
http://www.pkreptiles.com/
http://www.cuttingedgeherp.com
http://www.theboaphile.com/
Take care
Tom McCarthy
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McCarthyBoas.com