Tidal Vision Products, Inc. is a Bellingham, Washington specialty biochemicals manufacturer that converts discarded crustacean shells from seafood processing into chitosan, a biopolymer used across water treatment, agriculture, and materials science. Founded in 2015 by Craig Kasberg and Zach Wilkinson, it uses a proprietary zero-waste extraction process that avoids the harsh effluent streams of conventional chitosan production. The company describes itself as the only vertically integrated chitosan manufacturer in the world and the only commercial-scale chitosan producer in the United States. It sells through commercial divisions branded Tidal Clear, Clear Water Services, Tidal Grow, and Tidal-Tec, and raised a Series B reported at roughly $140-172 million.