4Excelsior provides high quality contract manufacturing solutions for the dietary supplements and sports nutrition industry. ... Our 78,000 square foot NSF GMP certified facility consists of 16 humidity and temperature controlled clean rooms, a complete in-house laboratory, and fully automated machinery. We believe in complete transparency, and providing our clients with the best in quality manufacturing. We believe in ethical scientific identification and procurement of raw materials, high quality formulation and manufacturing, and complete laboratory testing from start to finish. read more