Unison Industries, LLC, headquartered Jacksonville, Florida, is involved in the design, manufacture, and integration of electrical and mechanical components and systems for aircraft engines and airframes.

[4] Sontag invested his life savings in 1980 to secure an $8 million loan for a leveraged buyout of Slick Electro, an aircraft ignition manufacturer in Rockford, Illinois.

One of Sontag's first initiatives was to completely redesign the components and materials in the "Slick" products to make them more durable, reliable and easier to maintain.

In 1988, Unison invented the first solid-state ignition system for turbine-powered aircraft, which gave the company notability in the commercial aviation market.

[11] Unison serves both original equipment manufacturers and aftermarket customers in the general, commercial, and military aviation markets.

The company is a defense contractor, and several of their products are utilized in military applications, including ignition generators for the BGM-109 Tomahawk, which is a cruise missile.