SureFly develops, manufactures, sells, and supports SureFly-branded piston aircraft engine electronic ignition systems (EIS), marketed as SureFly Ignition Modules (SIMs). The company is based in Granbury, Texas.

The company was founded in March 2015 by eight business partners, all of whom were previously closely associated with the industry-leading Sky-Tec starters and Plane-Power alternators. It sold its first EIS (pre-certification experimental) unit in August 2016 and received its first FAA certification (engine STC) in October 2018. The first airframe STC followed shortly after, in February 2019.

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To date, more than 10,000 SureFly SIMs are in service and flying worldwide.