Science and Engineering Services, LLC Share: EngineeringEngineering Science and Engineering Services, LLC Visit Website 110 Stillwater Circle Bonaire, GA 31005 (478) 293-4936 (478) 953-8247 (fax) About Map About Established in 1988 as a small business, SESI’s fundamental strength is taking basic scientific concepts through engineering prototypes to full rate production through a lean enterprise approach. SESI posse What's Nearby? Distance: 5 10 15 20 25 50 mi.