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Contacts in the United States

Noise Control Engineering, LLC (NCE)BillericaNoise and Vibration Reduction Consulting Services for Industrial and Marine Fields
Nordson Sonoscan, Inc.NorthbrookNon-Destructive Internal Inspection and Analysis using Acoustic Microscopy for Applications in Solar Cell Testing
North 39 EnergyEdwardsEnergy Auditing & Consulting incl. LEED Rating Systems, Insulation Techniques, Performance Testing, Water Usage, Waste
North American Society for Trenchless Technology (NASTT)ClevelandNot-for-Profit Engineering Society Providing Education in Trenchless Technology
North American Water Office (NAWO)Lake ElmoActivities Regarding Environmental Impacts of Electric Utility Wastes, Promoting Renewable Energy Resources
Northeast Energy Efficiency Partnerships (NEEP)LexingtonAccelerating Energy Efficiency to Assist the Northeast & Mid-Atlantic Region in Reducing Total Carbon Emissions 80% by 2050
Northeast Organic Farming Association (NOFA)TitusvilleWorking to Promote Healthy Food, Sustainable Organic Farming Practices and a Cleaner Environment
Northern Geo, LLCAppletonProvide a Variety of Geothermal Heating-Cooling Products, incl. Water-to-Air, Water-to-Water & Water-to-Air Split Heat Pumps
Northern Technologies International Corporation (NTIC)Circle PinesEngineers and Manufactures Biobased and Compostable Plastics Intended to Replace Conventional, Petroleum-Based Plastics
Northwest Energy Innovations, LLC (NWEI)PortlandDevelops the Azura Wave Power Device that Extracts Energy from Both the Heave (Vertical) & Surge (Horizontal) Motion of the Wave
Nourish the Planet (NTP)BerthoudPioneering Low-Tech, Replicable, Sustainable Methods for All Types of Food Production - Aquaponics, Aquaculture
NovaLynx CorporationGrass ValleyManufacturer of Meteorological Instruments, Rain Gauges, Anemometers, Evaporation Pans, and Modular Weather Stations
Novi Energy LLCNoviEco-Friendly, Carbon Neutral Renewable and Alternative Energy Technologies, Agricultural Waste-to-Energy Anaerobic Digestion
Novozymes Biologicals, Inc.SalemMicrobial Products for Wastewater Treatment, Sludge Reduction, Odor Control, Agriculture, Waste Degradation, Biofuel Production
NSF InternationalAnn ArborProduct Testing and Certification Services, WHO Designated Collaborating Centre for Drinking Water Safety and Treatment
Nuvera Fuel Cells, LLCBillericaDevelopment of PEM Fuel Cell Systems and Hydrogen Generation and Dispensing Products for both End Users and OEMs
NuVision Window FilmsGlendaleSupplies and Installs Solar and UV Control Window Films, Providing Energy Savings, Enhanced Comfort and Protection
NW Wind & SolarSeattleFull Service Renewable Energy Systems Design-Build Company, Developing Customized Wind and Solar for Homes and Businesses
Ocean ConservancyWashingtonInformed by Science, our Work Guides Policy and Engages People in Protecting the Ocean and its Wildlife for Future Generations
Ocean Power Technologies, Inc. (OPT)MonroePowerBuoy® Offshore Electric Power & Real-Time Data for Oil & Gas, Defense, Security, Research & Communications Applications
Ocean Renewable Power Company, Inc. (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 ProductsTumwaterGreen Electro-Coagulation Technology that Reclaims & Recycles Industrial Wash & Wastewater without Harsh Chemicals or Filtration
Olympus Technologies, Inc. (OTI)EugeneAnaerobic Digestion Process Equipment - Digester Covers, Digester Mixers, Counter-Flow Concentric Tube Heat Exchangers
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
Open MotorsPalo AltoOpen Framework with «EDIT» Modular EV for MaaS & Multiple AI Solutions plus «SBES» Affordable Battery Swap Technology
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
Organic Trade Association (OTA)WashingtonTo Promote and Protect Organic with a Unifying Voice that Serves and Engages its Diverse Members from Farm to Marketplace
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 PowerPhoenixResidential and Light Commercial Grid-Connected and Off-Grid Solar Plus Storage, for Backup Power, NEM, Time-of-Use Optimization
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
PaceControls LLCPhiladelphiaDevelop, deploy IOT-SaaS Energy Efficiency & ADR Controls to Retrofit HVAC & Refrigeration, Boilers. Paybacks: 4 to 36 months
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 OzoneBeniciaOzone Technology for Disinfection, Oxidation and Purification, Complete Integrated Ozone Systems, Technical Services & Training
PactWashingtonInternational Development Nonprofit that Works on the Ground in Nearly 40 Countries to End Poverty and Marginalization
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