Clients

  • A & M Engineering
  • Access Midstream Partners, L.P.
  • ACME Foundry
  • ACME Foundry, Inc.
  • ACS - Advanced Combustion Specialists
  • ADA Carbon Solutions
  • ADA-ES, Inc.
  • Admin Internal jobs
  • AEP
  • AES Shady Point
  • AES Wolf Hollow LP
  • Afton Generating Station
  • Air Compliance Consultants, Inc.
  • Air Liquide
  • Air Products
  • Air Systems Testing, Inc.
  • Aires Consulting
  • AirKinetics
  • Alabama Municipal Electric Authority
  • Alberici Constructors & Stanley Consultants
  • Albermarle Corporation
  • Alcoa
  • Alphabet Energy, Inc.
  • Alstom
  • Altech Environment USA
  • American Airlines
  • American Castings
  • American Central Gas
  • American Gypsum
  • American Power Group, Inc.
  • Ameristar Fence Products
  • AMP-Cherokee
  • Ana Lab Corporation
  • Anadarko Gathering Company
  • Anadarko Petroleum Corporation
  • Ana-Lab Corporation
  • Anchor Glass
  • APAC Central, Inc.
  • Apex Companies, LLC
  • Applied Controls Corporation
  • Approach Resources Inc.
  • APR Energy
  • Aqua Turbo X LLC
  • Aquaterra Environmental Solutions, Inc.
  • Aquila MEP Clarksdale Power
  • Aquila, Inc.
  • Ardagh Glass Inc.
  • Arizona Electric Power Cooperative
  • Arizona Public Service
  • Arkansas Electric Coop Corp
  • Arkhola
  • Armstrong World Industries
  • Arnold & Porter
  • Arrow Engine Company
  • Ash Grove Cement Company
  • Ashland
  • Ashton Contractors
  • Associated Electric Cooperative, Inc.
  • Associated Mechanical, Inc.
  • Astoria Generating Co. Acquisitions, LLC
  • Atkins-Benham
  • Atlas Energy, L.P.
  • Atlas Paving
  • Atlas Pipeline Mid-Continent WestOK, LLC
  • Atlas Resource Partners, L.P.
  • Babcock & Wilcox
  • Baker Hughes
  • Balon Corporation
  • Barlow Operators
  • Barlow Projects, Inc.
  • Bartlett-Collins
  • Basin Environmental & Safety Technologies
  • Bayswater Peaking Facility, LLC
  • BE&K Construction Co.
  • Bear Creek Environmental
  • Bechtel
  • Bellco Materials
  • Bellco Materials, Inc.
  • Benham Group
  • Big Iron
  • Big Sandy Peaker Plant, LLC
  • Bio Town Ag, Inc.
  • Black & Veatch
  • Black Hills Corporation
  • Blackhawk Station
  • Blackshare Environmental Solutions
  • Bluestem Pipeline, LLC
  • BlueStone Natural Resources II, LLC
  • Bluewater Energy, Inc.
  • BM2
  • BMZ, Fresno Power Partners, J.V.
  • Boardwalk Field Services
  • Boardwalk Pipeline Partners, LP
  • Bobcat Gas Storage
  • Boral Brick, Inc.
  • Border Steel
  • Borger Energy Associates, LP
  • Bosque Power
  • BP North America Gas SPU
  • Brazos Electric Power
  • Brazos Valley Energy, LP
  • Broce Construction Co. Inc.
  • Bryan Texas Utilities
  • Burnham Commercial
  • Burns & McDonnell
  • Buzzi Unicem USA
  • C2i, Inc.
  • Cabot
  • Callidus Technologies
  • Calpine
  • Cameron-Cole, LLC
  • Cameron's Compression Systems
  • Cantera Natural Gas, LLC
  • Capitol Aggregates Inc.
  • Cardinal Engineering
  • Cardinal FG Company
  • Cardinal Midstream LLC
  • Caribbean Industrial Research Institute
  • Carville Energy, LLC
  • Catalytic Combustion
  • Catalytic Industrial Group
  • Caterpillar Inc.
  • CB&I
  • CED Operating Co., LLC
  • CEM Service Group, Inc.
  • CEM Solutions
  • CEMEX
  • Cemtek Environmental Inc.
  • Cemtek Systems Inc.
  • Cenovus Energy Inc.
  • Central Crude, Inc.
  • Central Mississippi Generating Co., LLC
  • Central Plains
  • Central Power Systems
  • CEP Mid-Continent, LLC
  • CER-Colorado Bend Energy Partners LP
  • CER-Quail Run Energy Partners LP
  • CF Industries (Terra Nitrogen)
  • CH2M Hill
  • Chemtrade Refinery Services, Inc.
  • Chesapeake Energy Corporation
  • Chesapeake Operating
  • Chevron Energy Solutions Company
  • Chillicothe Municipal Utilities
  • Choctaw Generation
  • Cimarex Energy
  • Cimarex Energy Co of Colorado
  • Cimarron Energy Inc.
  • Cinergy Investments, Inc.
  • CISCO
  • City of Ames, Iowa
  • City of Austin
  • City of Butler, MO
  • City of Chanute, KS
  • City of Coffeyville
  • City of Cushing
  • City of Grand Island Utilities
  • City of Hastings
  • City of Lakin
  • City of Lamar, MO
  • City of Las Vegas
  • City of Russel
  • City of Springfield, MO
  • City of Stillwater Utilities Authority
  • C-K Associates, LLC
  • CK Environmental, Inc.
  • Clatskanie People's Utility District
  • Clean Air Eng.
  • Clean Dried Processing
  • ClimeCo
  • CMI Energy
  • CMS Continental
  • Cogentrix
  • Colorado Energy Management
  • Colorado Springs Utilities
  • Colorado Ventures Ltd.
  • Commercial Metals Company
  • Commonwealth Chesapeake Co. LLC
  • Compressco, Inc.
  • Compressor Systems, Inc.
  • ConocoPhillips
  • Conoco-Phillips
  • Consolidated Asset Management Services
  • Corix Utilities USA
  • Cottonwood Energy
  • Covanta Energy
  • Coyote North Ltd.
  • CP Kelco
  • Crestwood L.P.
  • Crosstex Energy Services, L.P.
  • Cummins Southern Plains, LLC
  • David's Discount Tires
  • DCI Industries, Inc.
  • DCO Energy, LLC
  • DCP Midstream, LP
  • DeDietrich Boilers
  • Deflagration Energy
  • Delphi Catalyst
  • Devon Energy Corporation
  • Diamond Offshore
  • Direct Energy
  • Dogwood Energy Facility
  • Dogwood Energy LLC
  • Dominion
  • Dominion E & P
  • Dresser-Rand
  • DTE Energy Resources
  • Duke Energy
  • Duke Energy Field Services
  • DuPont
  • DuraCoatings
  • Durag, Inc.
  • Dyno Nobel Inc.
  • DynPar, LLC.
  • EA Engineering
  • Eagle Materials
  • Eagle Rock Energy
  • Eagleridge Operating, LLC
  • East Jordan Iron Works
  • East Kentucky Power Coop
  • ECCI
  • EDG Power Group
  • E-J Electric Installation Co.
  • El Dorado Energy
  • El Paso Electric Company
  • Emerald Power Corporation
  • Emerald Power Plant Services
  • Emergency Power Systems, Inc.
  • Enbridge
  • Enbridge/Midcoast
  • Enercon Services
  • Energy Development
  • Energy Developments, Inc.
  • Energy Recovery Operations
  • Energy Transfer Company
  • Enertec, Inc.
  • Engelhard Corporation
  • Engineering Technology Inc.
  • Enginuity
  • Enogex, Inc.
  • ENSR International
  • Entergy
  • Enterprise Products Company
  • Enterprise Products Operating LLC
  • Entropy, Inc.
  • ENVIRON International Corp.
  • Environex, Inc.
  • Environmental Concerns Inc.
  • Environmental Engineering Solutions
  • Environmental Safety, Inc.
  • Environmental Systems Corp
  • EOG Resources
  • EP Energy E&P Company, L.P.
  • Essential Power
  • EST
  • Ethos Energy
  • Eurecat US
  • Eureka Hunter Pipeline, LLC
  • EVRAZ North America
  • Exelon Corporation
  • Exterran Energy Solutions, L.P.
  • Extraction Oil & Gas
  • F&S Power Corporation
  • Farmland Industries Inc.
  • Farrand Engineering
  • Fibrominn LLC
  • Fishbeck Thompson Carr & Huber
  • Flatrock Engineering and Environmental
  • Florida Power and Light
  • Fluor Constructors
  • Flywheel Energy
  • Forney Corporation
  • Fortistar Methane Group
  • FPL Energy Marcus Hook, L.P.
  • Frontera Generation, LP
  • Frontier El Dorado Refining Company
  • FRU-CON Construction Corporation
  • FTS International
  • Fuchs Lubricants Co.
  • G.F.S. LLC
  • Gardner Denver
  • Garland Power & Light
  • GE Aircraft Engines
  • GE Energy
  • GE Energy Services - PA
  • GE Oil and Gas
  • GE Packaged Power Systems, Inc.
  • Gemma Plant Operations
  • Geographics, Inc.
  • Georgia-Pacific, LLC
  • GeoStat Environmental
  • Gerdau Ameristeel
  • Gilbert Southern Corporation
  • Glass Design, Inc.
  • Glover and Associates
  • Golden Pass LNG Terminal LLC
  • Goodrich Petroleum
  • Google Inc.
  • Grand River Dam Authority
  • Green Air Burner Systems
  • Green Country Energy, LLC
  • Greenhill Materials
  • Greenway Engineering
  • Griffith Energy, LLC
  • GSI Engineering
  • GTI Catoosa
  • Gudgeon Thermfire International Inc.
  • Gulf Crossing Pipeline Company, LLC
  • Gulf South Pipeline Company, LP
  • Halliburton
  • Hampton Alternative Energy Products, LLC
  • Hanlon Gas Processing, Ltd
  • Hanna Oil and Gas Company
  • Hard Rock Hotel & Casino
  • Haskell Lemon Construction
  • Helmerich & Payne
  • Henryetta Pallet Company
  • Highgate Power
  • Hiland Partners, L.P.
  • Hilcorp Energy Company
  • Hitachi
  • HLP Engineering
  • Holder Construction
  • Holly Refinery
  • Hoosier Energy
  • HRD, Inc.
  • Huber Woods
  • Hunt Oil
  • Hydro Aluminum
  • IACX
  • IAS Corp
  • ICM
  • Idaho Power Company
  • IES, LLC
  • Industrial Service Group of the Carolinas
  • Industrial Technology Group
  • INGENCO
  • Inland Power Group
  • Innospec Fuel Specialties
  • Innovia Films
  • InterGen
  • Interplastic Corporation
  • Interplastics
  • Interstate Power Systems, Inc.
  • Invenergy, LLC
  • Iochem
  • iSi Environmental
  • Ispat Inland Inc.
  • J.O.B. Construction
  • Jacksonville Electric Authority
  • Jamaica Bay Peaking Fac, LLC
  • JBS Swift & Co
  • Jenbacher
  • JL Consulting
  • Johann Haltermann Ltd.
  • John Zink Company
  • John Zink Company, LLC.
  • Jones LG, LLC
  • J-W Operating Company
  • J-W Power Company
  • Kahuna Ventures, LLC
  • KAL Energy Inc.
  • Kane Environmental
  • Kansas City BPU
  • Kansas City Power and Light
  • KBR
  • Kelson Energy
  • Kerns Construction, Inc.
  • Keyspan
  • Kiewit
  • Kimberly-Clark Corporation
  • Kinder Morgan, Inc.
  • Kings River Conservation District
  • Kior, Inc.
  • Kiowa Power Partners, LLC
  • KMC Thermo, LLC
  • Koch Fertilizer Enid, LLC
  • Koch Hydrocarbon Company
  • Koch Industries
  • Koss Construction
  • Lafarge
  • Laron, Inc.
  • LD Construction
  • Lea Power Partners
  • Leaf River Energy Center, LLC
  • Lean Flame Inc.
  • Leed Fabrication Services, Inc.
  • Lehigh Cement Company LLC
  • Leidos
  • Lesair Environmental Inc.
  • LG Constructors
  • Lhoist North America
  • Lime Rock Resources
  • Linn Energy
  • Logic Energy Solutions, LLC
  • LongAcre
  • Lordsburg Generating Station
  • Louisiana Energy and Power Authority
  • LS Power
  • Lubbock Power & Light
  • Lumen Energy
  • Luminant Generation Company
  • Luna Energy Center
  • LWB Refractories
  • M2 Fairplay, LLC
  • Magellan Midstream Partners, L.P.
  • Malarkey Roofing Products
  • Marathon Oil Company
  • MarkWest
  • Martin Machinery, LLC
  • Mayflower Energy
  • McCommas LFG Processing Partners LP
  • McHale & Associates, Inc.
  • Mechanical Systems, Inc.
  • Medicine Hat
  • Mewbourne Oil Company
  • Michelin North America
  • Mid America Agri Products/Wheatland, LLC
  • Mid America Engine
  • MidAmerican Energy Company
  • Midwest Energy Emission Corporation
  • Midwest Energy Inc.
  • Mirant
  • Miratech
  • Missouri Public Utility Alliance
  • Mitsubishi
  • Modern Continental South, Inc.
  • Molycorp Minerals, LLC
  • Momentum Midstream
  • Monitor Labs, Inc.
  • Monitoring Solutions, Inc.
  • Morris Cogeneration, LLC
  • Mueller Environmental Designs
  • NAEA Operating
  • NAES
  • NAES Luna Energy
  • National Gypsum
  • Navasota Odessa Energy Partners, LP
  • NEPCO
  • Nevada Cogeneration Associates #1
  • Nevada Cogeneration Associates #2
  • Nevada Division of Environmental Protecti
  • Nevada Energy
  • Nevada Power
  • New Covert Generating Company, LLC
  • New Energy Corporation
  • New Harquahala Generating
  • New Tech / Carr Environmental Group
  • Newfield Exploration
  • Newmont Nevada Energy Inv
  • Nextera Energy
  • NFG Midstream Trout Run, LLC
  • Niska Gas Storage
  • Noble Technologies Corp
  • Norit Americas, Inc.
  • North American Energy Services Company
  • North Jersey Energy Associates
  • NPN Environmental
  • NRG Texas Power LLC
  • Occidental Oil and Gas Corporation
  • OG&E
  • Oklahoma Cogeneration
  • Oklahoma Gas Services
  • Oklahoma Materials Recycling
  • Oklahoma Natural Gas
  • Oklahoma State University
  • Old Dominion
  • Omega Energy Consulting, LLC
  • OMPA
  • ONEOK Energy Services
  • ONEOK Power Marketing Co.
  • Oneta Power, LLC.
  • Orange Grove Energy, L.P.
  • Orizon Aerostructures
  • OVO LLC
  • Owens-Brockway Glass Container Inc.
  • Oxy USA
  • Pacificorp
  • Panda Power Funds
  • Panhandle Eastern Pipe Line Co, LP
  • Panther Energy
  • Paris Generation, LP
  • Parsons Brinkerhoff
  • PCI Nitrogen, LLC
  • Peerless Mfg. Co.
  • PennTex Midstream
  • Pentagon Technologies
  • PetroQuest Energy LLC
  • Pfizer Inc.
  • Phillips Petroleum
  • PIC Group, Inc
  • Pic World
  • Pinnacle West Energy
  • Pioneer Natural Resources
  • Post Rock Energy
  • Power Flame
  • PowerSouth Energy Cooperative
  • PowerTek
  • PPL Generation LLC
  • Prairie State Generating Company
  • Pratt & Whitney
  • Premier Resources
  • Primenergy, LLC
  • Primoris Energy Services
  • Pryor Chemical Company
  • PSEG Keys Energy Center
  • PurEnergy Caledonia, LLC
  • PVR Midstream, LLC
  • PW Grosser
  • QA Support, LP
  • Quachita Power, LLC
  • Quad Graphics
  • Quantum Resources Management, LLC
  • Quebecor World
  • Questor Technology, Inc.
  • Quicksilver Resources, Inc
  • Quicksilver Resources, Inc.
  • QuickWater
  • QuikWater
  • RAE Corporation
  • Ragnar Benson
  • Rathdrum Power, LLC
  • Red Ball
  • Red River Compression
  • Reliant Energy - Astoria
  • Reliant Energy - EDC
  • Reliant Energy Texas Renewables, LP
  • Rentech Nitrogen Pasadena, LLC
  • Republic Paperboard Company
  • Republic Paperboard Company, L.L.C.
  • Republic Services
  • RMT
  • Roan Resources
  • Robins & Morton
  • Rockwell Automation, Inc.
  • Rocky Road Power
  • RRI Energy Northeast Management Co
  • RRI Energy Wholesale Generation, LLC
  • RSV Engineering
  • Sabine Cogen, LP
  • SAIC Energy, Environment & Infrastructure
  • Saint Francis Health System
  • Saint-Gobain Containers
  • Salt Plains Storage
  • Salt River Project
  • Samson Companies
  • SandRidge Operating, Inc.
  • Schneider National, Inc.
  • Schreiber Engineering, LLC
  • Schreiber, Yonley & Associates
  • Schwarz Paving Company, Inc.
  • Sebesta Blomberg
  • Seeco, Inc.
  • Sega, Inc.
  • SemGas L.P.
  • Seneca Resources
  • Shaw Constructors
  • Sherwood Construction
  • Shintech Inc.
  • Shook LLC
  • Siemens
  • Sierra Research
  • Sinclair Oil Corporation
  • Sky Global Power One
  • SM Energy
  • SME Associates
  • Smith Power Products, Inc.
  • SNC- Lavalin
  • Solar Turbines, Inc.
  • Solomon Corporation
  • Solvay Flourides
  • Sonoco Flexible Packaging Company
  • Sooner B & B
  • Source Test Products, Inc.
  • South Houston Green Power, L. P.
  • South Texas Electric Cooperative
  • Southaven Power, LLC
  • Southern Power Company
  • Southern Star Central Gas Pipeline
  • Southwest Generation
  • Southwestern Electric Cooperative
  • Southwestern Energy Company
  • Spectrum Systems, Inc.
  • Spirit AeroSystems, Inc.
  • St. Mary Land & Exploration Co.
  • Stanley Consultants
  • Stantec
  • State Fair Community College
  • State Line Gathering System, LLC
  • Statoil Gulf Services LLC
  • Sterling Energy
  • STK - Squared Consulting, LLC
  • Strata, LLC
  • Strategic Environmental Compliance
  • Summit Midstream Partners
  • Sunflower Electric Power Corporation
  • Sunoco, Inc.
  • Superior Fabrication Inc
  • Surface Specialties
  • SWCA
  • Talisman Energy
  • Tall Oak MidCon, LLC
  • Targa Resources
  • Teledyne Monitor Labs
  • Tenaska
  • Tenaska Alabama II Partners, LP
  • Tenaska Central Alabama Generating Stn
  • Tenaska Gateway Partners, Ltd.
  • Tenaska Georgia
  • Tenaska Virginia Partners
  • Terra Nitrogen
  • Terracon Consultants, Inc.
  • Texas A&M
  • Texas Gas Transmission
  • Texas Municipal Power Agency
  • Texas Petroleum Investment Co.
  • The Doe Run Company
  • The Industrial Company
  • Thermal Product Solutions, LLC
  • Thermo Environmental Instruments, Inc.
  • Third Branch Engineering
  • Tinker Air Force Base
  • Topaz Power Group, LLC
  • Trace Environmental
  • TransAlta Centralia Generation, LLC
  • TransCanada
  • TRC
  • Triad Energy
  • Trinity Consultants
  • Trinity River Energy
  • Triumph Energy Partners
  • Troy Energy LLC
  • Tulsa Technology Ctr
  • TX Hydraulics
  • U.S. Gypsum Co.
  • Ultra Resources, Inc.
  • United Conveyor Corporation
  • United Sciences Testing, Inc.
  • Universal Compression
  • Universal Energy
  • US Power Generating Company, LLC
  • USA Compression
  • Valerus Compression
  • Vault Corporation
  • Vektek
  • Village of Freeport
  • Vine Oil & Gas
  • Viridis Energy (Texas), LP
  • Walker Engineering, Inc.
  • Wartsila
  • Waste Management
  • Weatherford
  • Weldquip, Inc.
  • WFEC
  • Wheelabrator Air Pollution Control
  • White Oak Power Constructors
  • Williams
  • Williams Field Services
  • Williams Four Corners, LLC
  • Williams Gas Pipelines Central, Inc.
  • Williams Mid-Stream
  • Williams Power Company, Inc.
  • Williams-Texas Gas
  • Williams-Transco
  • Winchester Power
  • Wolverine Tube
  • Wood Group
  • Wood Group LIT
  • Wood Group Power Plant Services
  • Woodville Renewable Power Project
  • Woodward Iodine Corporation
  • World Wide Turbines
  • WorleyParsons
  • WPX Energy, Inc.
  • Wunderlich-Malec
  • XCEL.Energy
  • XTO Energy, Inc.
  • Xtreme Power
  • Yates Constructors
  • Your Energy Saver
  • Zachry Construction Corporation
  • Zapata Industries, Inc.
  • ZEECO, INC.
  • Zephyr Environmental