Stocks to Consider Some better-ranked stocks from the same industry are Heritage-Crystal Clean, Inc. HCCI , Sharps Compliance Corp SMED and Tetra Tech, Inc. TTEK . Click to get this free report Tetra Tech, Inc. (TTEK): Free Stock Analysis Report Heritage-Crystal Clean, Inc. (HCCI): Free Stock Analysis Report Sharps Compliance Corp (SMED): Get Free Report Donaldson Company, Inc. (DCI): Free Stock Analysis Report To read this article on Zacks.com click here. Price inflation in some major raw materials, increased freight expenses as well as higher pension settlement disbursement primarily led to the rise.