This company is ranked #42 on the 2016 Inc 5000 list!
Inc Magazine says this about them:
Performs workplace drug testing as well as testing for hormones and vitamin levels, and DNA testing that can help determine proper dosages.
Located in Smyrna, GA, Castle Medical saw a 5882% growth in 2015 and generated $49.1 M in revenue.
Check out their website: castlemedical.com