PennWell Hydro GroupTulsaPublisher of Business-to-Business Magazines and Producer of Conferences & Exhibitions Serving the Hydroelectric Power Industry
Penton Media, Inc.AtlantaWaste Age Magazine for the Solid Waste & Recycling Industry, and other Publications and Events on Public Infrastructure
Penton Media, Inc.StamfordWasteExpo - North America´s Largest Solid Waste and Recycling Tradeshow Serving both the Private and Public Sectors
PerkinElmer, Inc.WalthamInstrumentation for Air, Water, Soil and Hazardous Waste Analysis, Biomonitoring, Industrial Hygiene, Biodiesel Analysis
Permaculture Drylands InstituteSanta Fe Promoting Sustainable Living Skills through Education, Networking and Demonstration Projects
Plug Power, Inc.LathamGenDrive - Hydrogen Fuel Cells, Serving as an Alternative to Lead-Acid Batteries in the Material Handling Market
PM Environmental, Inc.LansingEnvironmental Consulting, Environmental Site Assessments, and other Environmental Services
Polar Ray LLCBoulderOffers Energy Star LED Lighting Products Online for Residential and Commercial Use
Polylok, Inc.WallingfordInternational Supplier of Plastic Injection Molded Products for the Precast Concrete, Drainage and Onsite Wastewater Industries
Polymer Energy, LLCCircle PinesUses Catalytic Pyrolysis to Efficiently Convert Plastics (Primarily Polyolefins) into Crude Oil
Portable Solar Power BizCarmelManufacturer of Portable Solar Power Generator Equipment & Systems, and Folding Solar Panels
Power ShaverOrangevaleCommerical and Residential Electrical Efficiency Systems, Reduce Demand, Consumption, Harmonic Distortion and more
PowerBees, Inc.WaylandOne Stop Provider of Mold Removal, Water Damage Repair, Air Duct Cleaning and Alternative Energy Sources
PPC Air Polution Control SystemsLongviewWet & Dry Electrostatic Precipitators, SCR NOx & CO Catalyst, Dry Injection Acid Gas Control, Biofiltration VOC & Odour Control
Precision-Paragon (P-2)Yorba LindaEnergy Efficient Lighting for Commercial and Industrial Buildings - LED, Fluorescent and Specialty Fixtures
Presto EngineeringCincinnatiPresto - Custom Built Low Wind Speed Wind Turbines Generators, Crank-a-Watt Human Powered Electrical Generators Battery Charger
PrimeLink Solutions, LLCBurlingamePrimeWare Eco-Friendly Tableware & Food Containers, Made from 100% Sustainable Resources that are both Recyclable & Compostable
PRM Energy Systems, Inc.Hot SpringsSupplier of Biomass Gasification Systems to Fire Boilers, Dryers, Kilns, Furnaces, IC Engine/Generators, Combustion Turbines
Pro-Act BiotechWarrenEnvironmentally Friendly Waste Treatment Systems for the Concentrated Animal Feeding Operation and the Aquaculture Industry
Pro-Equipment, Inc.WaukeshaProduces and Supplies over 45 different Major Products for the Global Water / Wastewater Markets
Process Engineering Associates, LLCOak RidgeProcess Engineering Design Services for all Types of Industrial Processes, ie Waste, Water Treatment, Alternative Fuels, etc
Propulsion Environmental Working Group (PEWG)Tinker Air Force BaseA Government, Industry, Academia Collaboration to Solve Environmental Problems and Insert Advanced MRO Technologies
ProSonix LLCMilwaukeeSpecializes in Direct Steam Injection Heating Solutions for Water, Slurry and Sludges in Wastewater, Ethanol & Biogas Process
Protean Engineering Corporation (PEC)TorranceDesign and Testing of Emerging Technologies in the Field of Material Science, with a Focus on Fibrous Composites
Proton OnSiteWallingfordProton Exchange Membrane (PEM) Electrochemical Systems to Make Hydrogen from Water Producing Safe and Reliable Onsite Hydrogen
Publicom, Inc.TucsonWC&P - Water Conditioning and Purification Magazine
Puget Sound Solar LLCSeattleSolar Design, Sales, Installation, Service. Solar Electric Systems and Solar Water Heating Systems
Pumps of Oklahoma Oklahoma CitySolar Powered Water Pumps, Irrigation Equipment, Environmental Remediation Pumps, Aeration Boosters, Controls & Accessories
Quench USA, Inc.King of PrussiaBottleless Water Coolers with Ultraviolet Sanitization, 5-Stage Activated Carbon Water Filtration and Reverse Osmosis Technology
Quinntas Renewable EnergyDenverTailor-Made Training Courses and Services, National and International Acreditation NABCEP, BPI, IREC, ISPQ
Rain Barrels Int´lRaleighSuppliers of Rain Barrels for Rainwater Recycling, Made from Recycled Food Grade Plastic Barrels
Raindrops Cisterns, Inc.SarasotaDesigns and Supplies Complete Rainwater Harvesting Kits for Home or Business, as well as Custom Stormwater Management
Rainforest AllianceNew YorkTransforms the Way People Grow Food, Harvest Wood and Host Travellers by Setting Comprehensive Standards for Sustainability
RD Testing ServicesWest Des MoinesFully Certified and Licensed for Stage I and Stage II Underground Storage Tanks (UST) Vapor Recovery Testing
Real Goods Solar, Inc.HoplandSolar Electric System Design & Installation. Alternative Energy Supplies available through Catalog & Store
RectorSeal Corp.HoustonBuilding Construction Materials such as Sealants and Fire Proofing Compounds, Specialty Process Water Treatment Chemicals
Redding Linden Burr, Inc. (RLB)HoustonDesign and Engineering of Geothermal Heat Exchanger Technologies, LEED Design and Commissioning, Energy Star Certification
Reef CheckPacific PalisadesVolunteer Ocean Conservation Organization, Designed to Protect and Save Coral Reefs Globally and Temperate Reefs in California
Reid Plumbing Products LLCHopewellEquipment to Get more Water from Low Yield Wells or to Limit Withdrawals (Ground Water Management) Use Wells as poor as 0.10 gpm
Reliance Energy Resources, LLCSarasotaOffers Home Biodiesel Kits, Biodiesel Processing Equipment, Dry Washing Biodiesel, Chemicals, Heaters, Centrifuge, and more
ReliOn, Inc.SpokaneManufactures Modular, Proton Exchange Membrane Fuel Cells for Customer Applications Up to 20kW
Remco EngineeringVenturaCustom Water and Wastewater Treatment using Reverse Osmosis, Ion Exchange, Filtration, Pumping Systems
RemTec InternationalBowling GreenReclamation of Ozone Depleting Substances which include Fire Protection Clean Agents and Refrigerants