David Humphrey is President, C.E.O., and owner of Kirkman Group, Inc., a group of companies including Kirkman®, a nutraceutical company, Kirkman Labs, a pharmaceutical company and he is co-owner of Purity Laboratories, Inc, an environmental laboratory.
Humphrey is also an attorney and entrepreneur who founded several other large companies, including Maui Gold, Inc., formerly, Honolulu Premium Products that was named by Inc. Magazine to its Inc. 500 list of fastest growing companies in the nation for four consecutive years. He also founded the Humphrey Corporation that manufactured most of the frisbee type flying saucers in the world under his ownership.