The Foundation Specialists, also written TFS, is a foundation repair and waterproofing company with a New Albany, Indiana listing. Its site says it was founded in 1996 and is locally owned and operated.
The site lists foundation repair, including wall stabilization, piers and anchors, basement waterproofing and dehumidification, concrete repair and leveling, and crawl space encapsulation and support. Helical piers are named as one of its foundation repair solutions, but the page does not go into detail on helical piles. Its stated service area covers Middle Tennessee, West Tennessee, Western Kentucky and Southern Indiana, with offices in Louisville, Kentucky and College Grove, Tennessee.
Call +1 844-468-4674 to request an inspection. Since helical piers are one option among several, ask why a helical pier is recommended for your structure, how load and depth are determined, whether an engineer reviews it, and how the warranty works.