Omnitek develops and sells conversion kits that enable diesel engines to run on alternative fuels — CNG, LNG, renewable natural gas, hydrogen, or LPG. The kits are designed for heavy-duty applications including buses, trucks, rail, marine, and stationary power, where diesel engines can have service lives of up to 20 years. Fleet operators convert existing engines during scheduled overhauls rather than purchasing entirely new alternative-fuel engines, with conversion economics driven primarily by the price spread between diesel and cheaper gaseous fuels. Where conversion isn't feasible, Omnitek also sells new purpose-built natural gas engines. Omnitek does not perform installations itself; instead, Omnitek trains a global network of dealers, distributors, and authorized installation centers who perform conversions using Omnitek technology. Omnitek also sells replacement parts and a high-pressure natural gas coalescing filter as complementary products. The company operates with a lean cost structure — just six full-time employees — and relies heavily on its distributor network. Customer and supplier concentration is high, with four customers and two suppliers each accounting for roughly 87% of sales and purchases, respectively. Omnitek has EPA, CARB, and EURO VI certifications for specific engine models, and regulatory approvals gate its addressable markets. Government incentives and emissions mandates in markets with domestic natural gas supplies can accelerate demand. Omnitek has converted over 5,000 engines worldwide since 2001 and targets international markets where diesel is significantly more expensive than gaseous fuels.