The future of meat substitutes may not involve plants. While food manufacturers race to bring new soy, wheat and pea-based products to market, a handful of start-ups have been hard at work developing a new kind of meat alternative from fungi.

Two companies in the emerging space are gearing up to launch their first products this year. Emergy Foods, Boulder, Colo., is working with culinary experts to perfect its steak alternative, which will debut in restaurants in Colorado under the newly unveiled Meati brand.

Berkeley Calif.-based Prime Roots, formerly Terramino Foods, also plans to launch its first products in 2020. The company uses Koji, a Japanese fungus traditionally used to make soy sauce and sake, to create several kinds of seafood, including salmon burgers, shrimp, lobster and tuna as well as chicken, sausage and beef.