Sigma Services Corporation is a contract blending and packaging specialist based in Zion, Illinois. The company provides a single-source solution for dry and liquid blending, primary packaging, and secondary packaging. Primary packaging capabilities include dry and liquid fills, pouches, rigid containers, vertical form-fill-seal (VFFS), and flow wrapping. Secondary services cover kit assembly, promotional packaging, point-of-purchase displays, and shrink wrapping. Sigma also manages logistics and shipping, delivering finished products directly to client distribution centers. Its experience spans nutritional supplements, specialty oils and spreads, protein powders, and healthy snack mixes. Source The company is known for its rare packaging flexibility and turnkey services tailored for food and nutritional brands.