Omnitek Engineering, Corp. Omnitek Engineering, Corp. (OMTK) develops and sells proprietary diesel-to-natural gas engine conversion systems (DNG) and complementary products, including new natural gas engines that utilize the company’s technology -- providing global customers with innovative alternative energy and emissions control solutions that are sustainable and affordable. The DNG system has established Omnitek as a leader in the industry. Omnitek offers a total-system approach and is dedicated to supplying alternative energy and emissions control solutions that are sustainable and affordable.