Anchorage, AK-based company Tyonek Manufacturing Group, Inc. and Tyonek Services Group, Inc. chose Madison, AL as the location of a new subsidiary – Tyonek Manufacturing Group, Inc. (TMGI) and built its first facility in 2004. Since then, the defense manufacturer has expanded greatly, adding three more facilities (a total of 128,000 square feet in 2013).

The City of Madison was an ideal location for the company in part because of its close proximity to Redstone Arsenal. Another main feature that sold the company on locating in Madison was the city's school system. The company was also able to qualify for tax abatements, making it easier for them to make the original investment, as well as the expansion investments.

Madison IDB has assisted Tyonek during three projects, including the initial facility construction and subsequent expansions.