American Granby Inc. | 739 followers on LinkedIn. The Original Source of Vendor Consolidation | American Granby was established in 1962 to serve the distribution needs of the wholesale pump & well, pool & spa, turf irrigation and plumbing & heating markets. With the establishment of American Granby came the birth of “Vendor Consolidation™”. This buying concept defined the method of procuring an array of products from many manufacturers and suppliers and making them available to wholesale distributors from a single source at competitive prices.