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Contacts in the United States

Ocean Renewable Power Company (ORPC)PortlandTidGen® Power System for Shallow Tidal and Deep River Sites, RivGen® Power System Designed for Small and Remote River Sites
OceanaWashingtonCampaigns to Protect and Restore the World´s Oceans through Scientific, Legal, Policy and Advocacy Approaches
Ohio Lumex Co, Inc.SolonManufacturer of Gas Analzyers, CEMs and Process Analyzers, In-House Lab Analysis of Sorbent Traps
Oil Water Separator Technologies, LLC (OWS Tech)West Palm BeachManufactures Oil Water Separators, Oil Stop Valves, Oil Containment Sumps, Oil Skimmers, Coalescing Media & related Accessories
OilTrap Environmental Products, Inc.TumwaterGreen Electro-Coagulation Technology that Reclaims & Recycles Industrial Wash & Wastewater without Harsh Chemicals or Filtration
Omni Environmental Group, LLCHarvardSpecializes in Environmental Consulting and Engineering, Evaluates and Cleans Up Contaminated Properties
OmniLytics, Inc.SandyDeveloping Safe and Natural Bacteriophage Technology for Pathogen Control in Agriculture, Food, Water & Industrial Applications
Omnitec Design, Inc.MukilteoPortable Air Purification Equipment, Negative Air Machines, PCO Generators, Lab Air Purification Equipment
optek-Danulat, Inc.GermantownManufacture Inline Turbidity Meters, Colorimeters and pH and Conductivity Sensors for Process Control & Automation
Orenco Systems, Inc.SutherlinDecentralized Effluent Collection & Energy-Efficient Wastewater Treatment Technologies for Residential & Commercial Applications
Ormat Technologies, Inc.RenoGeothermal and Recovered Energy-Based Power Plants with the Ormat® Energy Converter (OEC) using Organic Rankine Cycle Technology
Oscar Larson & Associates (OLA)EurekaCivil Engineering, Site Development, Water, Wastewater and Storm Drainage, Program Management
Osprey BiotechnicsSarasotaMicrobial Products for Wastewater, Soil, and Groundwater Bioaugmentation. Contract Fermentation and Stabilization
OTT HydrometLovelandMultiparameter Water Quality Monitoring Equipment and Advanced Analytical Systems for Water Quality Testing
Otto H. Rosentreter Company (OHR Energy)Santa Fe SpringsFuel Cells, Hydrogen, Cogeneration, Storage, Biogas, Engineering, Construction, Installation, Operation, Maintenance and Finance
OutBack Power Technologies, Inc.ArlingtonPower Electronics for Renewable Energy, Back-Up Power and Mobile Applications - True Sine Wave Inverter/Chargers & Controllers
Outback WaterEugeneFull Line of Products to Convert Microbiologically 'Risky' or Contaminated Water into Safe Drinking Water - Chemical Free
Outotec (USA), Inc.Coeur d´AleneSupplier of Environmentally Friendly Waste Fired Fluidized Bed Combustion/Boiler Systems, Gasification of Biomass
Ovivo USA, LLCSalt Lake CityDigestion, Aeration, Flotation, Degritting, Clarifiers, Granular Filters, Sludge Dewatering, Thickeners, Screens, MBR Systems
Oxbow Activated Carbon, LLCOceansideSupplies a Full Range of Coconut Shell, Coal and Wood-Based Carbon Products Targeting Value-Added Applications
Ozark Mountain Air Organic Beds, Inc.SpringdaleManufacturer of Organic Mattresses, Sustainable Platform Beds, Foundations, and Organic Bedding
PaceControls LLCPhiladelphiaRetrofit Energy Efficiency and Smart Grid Controls for HVAC & Refrigeration, Water Heating, Boilers, Turnkey Installations
Pachamama AllianceSan FranciscoEmpowering Indigenous People of the Amazon Rainforest to Preserve their Lands and Culture
Pacific Biodiesel Technologies, LLCKahuluiAdvanced Zero-Waste Technology, Refines Waste and Virgin Veg. Oils and Animal Fats into Clean, Renewable Fuel for Diesel Engines
Pacific Environmental Engineering CorpEl SegundoThermal and Catalytic Oxidizers, Catalyst, Scrubbers, Industrial Filters, General Engineering Contractor
Pacific OzoneBeniciaOzone Technology for Disinfection, Oxidation and Purification, Complete Integrated Ozone Systems, Technical Services & Training
Pacific Power Renewables, Inc. (PPR)AuburnFull-Service Solar Power Company, Develops, Finances, Owns and Operates Power Plants
Paladino & Company, Inc.SeattleWorking with Building Owners to Optimize Business Performance using Sustainability as a Competitive Driver
Pall WaterCortlandMembrane-Based Treatment of Drinking & Industrial Water, Wastewater, Desalination & Ultrafiltration
Pam Engineers, Inc.GreenacresWater and Waste Water Treatment Project Engineering, Design, Supply and Management
Pan America Environmental, Inc.McHenryOil Water Separators, Dissolved Air Flotation, Slant Plate Clarifiers, Vehicle Wash Treatment, Coag/Flocc, Groundwater
Panel Built, Inc.BlairsvilleOffers a Complete Line of Custom Modular Offices, Mezzanines, Pre-Assembled and Exterior Buildings
Parkson CorporationFort LauderdaleHeadworks, Biosolids Management, Separations & Filtration, Biological Treatment, Aeration
PDBlowers, Inc.GainesvilleSupplier of Blowers and Parts, Custom Fabrication and System Integration, Remediation Equipment and Refurbishment
Peat Plus Technologies, Inc.CarsonvilleOil Absorbent Peat; Granular Absorbent Oil Base and Composition for Absorbing Spills
PEER Consultants, P.C.WashingtonWater, Wastewater and Civil Engineering Services, Hazardous and Toxic Materials Management and Remediation
PennWell CorporationTulsaWater & Wastewater International, WaterWorld and Industrial WaterWorld Magazines
PennWell Hydro GroupTulsaPublisher of Business-to-Business Magazines and Producer of Conferences & Exhibitions Serving the Hydroelectric Power Industry
Pentair Aquatic Eco-Systems Inc. (PAES)ApopkaEquipment, Accessories and Water Technologies for the Pool, Aquaculture and Environmental Water Monitoring Industries
Perfect Water Technologies, Inc.ScottsdaleReverse Osmosis Water Purification Systems and Water Filtration Units
PerkinElmer, Inc.WalthamAnalytical GC-MS Instrumentation for Air, Water, Soil and Hazardous Waste Analysis, Biomonitoring, Industrial Hygiene etc
Permaculture InstituteSanta Fe Promoting Sustainable Living Skills through Education, Networking and Demonstration Projects
Peterson Salt & Water Treatment Co.HopkinsFull Service Water Softening Company - Installation of Water Purification Systems, Recycling & Refurbishment of Water Softeners
Phoenix Industries, LLCPrescott ValleyManufacturers of Asphalt Rubber Blending Plants and PelletPAVE Rubber Modified Binder Additives
Phoenix Navigation & Guidance Inc. (PNG)MunisingNew Turbine Workshop, Free/Low-Cost Educational Plans, DIY Solar ORC/Biomass Steam Turbine Generator, Solar Engine
Photon Electric, LLCMillersburgSolar Electric Systems, Inverter, Back-Up Systems, High Efficiency Freezer, Residential and Commercial, Grid-Tied or Off-Grid
Pierpont Energy LLCMesaManufacturer of Solar and Wind Powered Mobile LED Light Towers and Security Towers
Piian Systems LLCPalm SpringsManufacturers and Suppliers of All-Natural Odour Neutralizing and Dust Suppression Systems
Plasti-Fab, Inc.TualatinFull Line of Corrosion Resistant FRP Composite Equipment for Industrial & Municipal Waste Water & Water Treatment and Control
Plug PowerSpokaneHydrogen and Fuel Cells for Material Handling and Stationary Applications