Prolific Earth Sciences develops the microBIOMETER® soil-testing system, a smartphone-based, on-site test that estimates microbial biomass and the fungal-to-bacterial ratio in about 20 minutes. Based in Everett, Washington, the company makes its testing accessible to farmers and soil stewards in more than 100 countries, with kits also designed for university instruction and student research. Its cloud portal lets users store, organize, export, and share soil-test results over time.