Employing optical sensing and AI into the task of milk testing on the farm, principals of the Labby Inc are using light scattering, absorption and fluorescenceto simultaneously determine milk composition. With close ties to MIT, the firm is building next-generation products to transform how food testing is set up and undertaken such as to provide fast, accurate, and affordable testing solutions for consumers and businesses -- anytime and anywhere. Labby is usefully understood as an AI-powered spectrometer - portable and super versatile, the firm is structured to combine the power of optical sensing and machine learning in manners that may translate to usage in many industrial applications beyond food.