There are some suppliers but none that I know of Live in Caracas. Tho there are several crartbreweries in Caracas.
Where I get my grains, hops, yeast, and equipement Is from mr Steffan Hellriegel who lives in Barquisimeto. His contact info Is firstname.lastname@example.org and his telephone number Is 0414-5291-343. Any questions just let me know I Live in Valencia 2 hours apart from caracas.