Incorporated in Alabama in 1991 and headquartered in Huntsville, AL, S3 provides technical products and services through two diversified business units: SETA Services and Training & Systems Support (TSS).
S3 also has three wholly-owned subsidiaries: Kachemak Bay Flying Services (KBFS), Global Logistics Support Services (GLSS), and S3International, Inc. (S3I).
S3 supports the US Department of Defense (DoD), other US Government (USG) agencies, Partner Nation militaries, and commercial customers.
