List of Companies Profiled in the report
2G Energy GmbH
Anaergia Inc.
Covanta Energy Corporation
Harvest Power, Inc.
Host Holding B.V.
Organic Waste Systems (OWS), Inc.
PlanET Biogas Global
Schaumann BioEnergy GmbH
Siemens AG
Streisal GmbH
Waterleau Group NV

List of Other Companies Mentioned in the report
Acti-Zyme Products Ltd.
Addinol Lube Oil GmbH
Adnams Bio Energy Ltd
AgPower Group, LLC
Agraferm Technologies AG
AGreen Energy (AGE)
Agrivert Ltd
All Power Labs
All Waste Services Ltd
Anaergia Inc
Applied Technologies, Inc.
Aprovis Energy Systems GmBH
AQUA Engineers, Inc.
Arisdyne Systems
Avant Energy
Awite Bioenergie GmbH
Barfoot Energy Projects Ltd
Bauer North America
BDI - BioEnergy International AG
BGreen Energy (BGE)
Big Ox Energy
Bigadan A/S
BioEarth Energy
Bio-en Power Inc.
BIOFerm Energy Systems
Biogas Direct, LLC
Biogas Energy Partners
Biogas Recovery in the Agricultural Sector
Biogas Researchers Inc
Biogest Energie un Wassertechnik GmbH
Bio-Terre Systems, Inc.
Blue Electron
Boerger, LLC
BTA International GmbH
BTS Biogas Srl/GmbH
California Bioenergy LLC
Cambi, Inc.
Camco Clean Energy
Cargill, Inc.
CG Schmidt, LLC.
CH Four Biogas, LLC
Clean Energy Fuels
Clean Fuel Partners, LLC
Clean Methane Systems LLC
ClearCove Systems
Clearfleau Limited
Cory Environmental Ltd
Covanta Energy Corporation
Covanta Holding Corporation
DCO Energy
Deutches BiomassForschungsZentrum GmbH
DFI Dairy Industry Task Force on digesters
Digested Organics LLC
DVO, Inc.
Eco Sustainable Solutions Ltd
Ecomembrane LLC
Egmere Energy Ltd
Emerald Biogas Ltd
Energy 2001 Inc
Entec Biogas USA
entice Biogas USA
Environmental Fabrics, Inc.
Environmental Management Group International, Inc. (EMG)
EnviTec Biogas USA, Inc.
Evolution of Biogas Systems
Evonik Industries
Exergy New Energy
Fernbrook Bio
FirmGreen, Inc.
Future Biogas
GE Jenbacher
Geomembrane Technologies, Inc. (GTI)
Governor’s Inter-Agency Bioenergy Working Group
Green Energy Solutions
Greenlane Biogas
Greenville Energy
GWE Biogas
Hallwick Energy
Harvest Power, Inc
Himark BioGas
Hitachi Zosen Inova U.S.A. LLC
HRS Heat Exchangers
IES Biogas
Industrial & Environmental Concepts, Inc. (IEC)
Inland Power Group
Institute for Biogas, Waste Management & Energy
Interstate Power Systems, Inc.
Invite Biogas USA, Inc.
Kurtz Bros., Inc
Landwarme GmbH
Liquid Dynamics Corporation
Local Generation Ltd
Malmberg Water AB
MT Energie GmbH
Northern Biogas
Organic Waste Systems (OWS), Inc.
Oxford Renewable Energy Ltd
Pacific Gas and Electric (PG & E)
Parker Hannifin Corporation
Parker Hannifin GmbH
Pentair Haffmans
Pharmer Engineering
Phoenix Energy
PlanET Biogas USA
Quasar Energy group
RCM International LLC
Ringler Energy
Rio Tinto plc
R-Qubed Energy
Sattler AG
Schaumann BioEnergy GmbH
Schmack Biogas GmbH
Serge Ferrari S.A.S.
Shanks Waste Management
Siemens Industry, Inc.
Sierra Energy
Southern Californian Gas
Streisal GmbH
Subsea 7 SA
Tamar Energy
The Evolution of Biogas Systems (Evobios)
Tiry Engineering, Inc.
U.S. Biogas LLC
UEM Inc.
Universal Sanitary Equipment Manufacturing Company (USEMCO)
UTS Bioenergy
Vanguard Renewables
Veolia Biothane Anaerobic Treatment
Vulcan Renewables
Waste Management, Inc.
West Biofuels
Weston & Sampson
Williams Engineering Associates
Wilson Engineering Services, PC
Xylem Water Solutions
Yield Energy, Inc.
Zero Waste Energy LLC

List of Associations Mentioned in the Report
American Biogas Council (ABC)
Anaerobic Digestion and Bioresources Association (ADBA)
Anaerobic Digestion Development Centre (ADDC)
Austrian Environment Agency
Bioenergy Association of California (BAC)
British Anaerobic Digestion Association
California Energy Commission
Californian Air Resources Board
Canadian Biogas Association (CBA)
Climate Change Select Committee
Colgate University
Commonwealth of Independent States (CIS)
Department for Environment, Food & Rural Affairs (DEFRA)
Department of Energy and Climate Change (DECC)
Energie Méthanisation Autonomie Azote (EMAA)
Energy Information Administration (EIA)
European Biogas Association (EBA)
European Union (EU)
European Union Environment Agency (EUEA)
Fraunhofer Institute for Wind Energy and Energy System Technology IWES
French Environment Agency
German Centre for Bioenergy Research (DBFZ)
Global Methane Initiative (GMI)
Groceries Manufacturers Association
HM Treasury
Institute for Biogas, Waste Management and Energy
International Energy Administration (IEA)
International Methane to Markets Partnership (IMMP)
Italian Agency for Environmental Protection and for Technical Services (APAT)
Landfill Methane Outreach Programme (LMOP)
National Waste & Recycling Association (NWRA)
Public Utilities Commission (PUC)
Solid Waste Association of North America (SWANA)
State of Oregon’s Department of Environmental Quality
The Anaerobic Digestion and Bioresources Association (ADBA)
The Bioenergy Association of California (BAC)
The California Association of Sanitation Agencies
The Climate Trust
The Institute for Biogas
The University of California
The US Department of Agriculture (USDA)
UK Anaerobic Digestion and Bioresources Association (ADBA)
UK Environment Agency (EA)
United Nations – Convention on Climate Change (UNFCCC)
United Nations (UN)