Subsidiaries of the Registrant Exhibit 21.1 NAME JURISDICTION OF INCORPORATION All Cycle Waste, Inc. Vermont Alternate Energy, Inc. Massachusetts American Ash Recycling of Tennessee, Ltd. Florida Atlantic Coast Fibers, Inc. Delaware B. and C. Sanitation Corporation New York Better Bedding Corp. New York Blasdell Development Group, Inc. New York Bristol Waste Management, Inc. Vermont Casella Insurance Company Vermont Casella NH Investors Co., LLC Delaware Casella NH Power Co., LLC Delaware Casella RTG Investors Co., LLC Delaware Casella Transportation, Inc. Vermont Casella Waste Management of Massachusetts, Inc. Massachusetts Casella Waste Management of N.Y., Inc. New York Casella Waste Management of Pennsylvania, Inc. Pennsylvania Casella Waste Management, Inc. Vermont Corning Community Disposal Service, Inc. New York Data Destruction Services, Inc. Maine Fairfield County Recycling, Inc. Delaware FCR Camden, Inc. Delaware FCR Florida, Inc. Delaware FCR Georgia, Inc. Delaware FCR Greensboro, Inc. Delaware FCR Greenville, Inc. Delaware FCR Morris, Inc. Delaware FCR Plastics, Inc. Delaware FCR Redemption, Inc. Delaware FCR Tennessee, Inc. Delaware FCR Virginia, Inc. Delaware FCR, Inc. Delaware Forest Acquisitions, Inc. New Hampshire Grasslands, Inc. New York Hakes C & D Disposal, Inc. New York Hiram Hollow Regeneration Corp. New York Hyland Facility Associates New York K-C International, Ltd. Oregon KTI Bio Fuels, Inc. Maine KTI Energy of Martinsville, Inc. Virginia KTI Energy of Virginia, Inc. Virginia KTI Environmental Group, Inc. New Jersey KTI New Jersey Fibers, Inc. Delaware KTI Operations, Inc. Delaware KTI Recycling of Illinois, Inc. Delaware KTI Recycling of New England, Inc. Maine KTI Recycling of New Jersey, Inc. Delaware KTI Specialty Waste Services, Inc. Maine KTI Transportation Services, Inc. Maine KTI, Inc. New Jersey Maine Energy Recovery Company LP Maine Manner Resins, Inc. Delaware Maple City Refuse Corp. New York Mecklenburg County Recycling, Inc. Connecticut Natural Environmental, Inc. New York New England Landfill Solutions, LLC Massachusetts New England Waste Service of ME, Inc. Maine New England Waste Services of Massachusetts, Inc. Massachusetts New England Waste Services of N.Y., Inc. New York New England Waste Services of Vermont, Inc. Vermont New England Waste Services, Inc. Vermont Newbury Waste Management, Inc. Vermont North Country Composting Services, Inc. New Hampshire North Country Environmental Services, Inc. Virginia North Country Trucking, Inc. New York Northern Properties Corporation of Plattsburgh New York Northern Sanitation, Inc. New York PERC Management Company, LP Maine PERC, Inc. Delaware Pine Tree Waste, Inc. Maine Portland C & D Site, Inc. New York R.A. Bronson, Inc. New York Resource Optimization Technologies New Hampshire Resource Recovery of Cape Cod, Inc. Massachusetts Resource Recovery Systems of MOSA, Inc. New York Resource Recovery Systems of Sarasota, Inc. Florida Resource Recovery Systems, Inc. Delaware Resource Transfer Services, Inc. Massachusetts Resource Waste Systems, Inc. Massachusetts Rochester Environmental Park, LLC Massachusetts Schultz Landfill, Inc. New York Sunderland Waste Management, Inc. Vermont Total Waste Management Corp. New Hampshire U.S. Fiber, Inc. North Carolina Waste-Stream, Inc. New York Westfield Disposal Service, Inc. New York Winters Brothers, Inc. Vermont