Oilfield services, equipment, manufacturing and supply

• Advanced Measurements, Inc.
• AFL Telecommunications
• AmerCable
• Artificial Lift Company
• ARKeX
• Baker Atlas
• Baker Hughes
• Baker Oil Tools
• Beerenberg
• Cameron
• Centrilift
• Champion Technologies
• Crane Valve Services
• Cubility
• Dan-Loc Bolt & Gasket
• EMGS
• EMTEK
• Expro
• Futuretec
• Gas Optics
• GEODynamics
• Global Energy Services
• Global Flow Technologies
• Global Tubing
• Graco
• Greene's Energy Group
• Halliburton
• Hexion
• IFOS
• Integrated Production Services
• ION Geophysical
• Key Energy Services
• KJT Technologies
• Lockheed Martin
• Logan International
• Lufkin Industries
• Maverick Tube
• MERA
• Merichem Gas Technologies
• Microseismic
• Moog
• Noble Emerging Technologies
• NovaDrill
• Owen Oil Tools
• Parker Drilling
• PanGeo Subsea
• Pendemak
• Petroleum Geo-Services
• Polyflow
• ProAnalysis
• Protia
• Prudential Steel
• Puffer-Sweiven
• Pure Energy Services
• QinetiQ
• Real-Seal
• Republic
• RESMAN
• Schlumberger
• Seawell
• Smith International
• Sub-One Technologies
• US Steel
• VAM Drilling
• V&M Tubes
• Varel
• Weatherford International
• Weir SPM
• Sireless Seismic
• Wirescan AS
• WISE Well Intervention Services
• Worldwide Oilfield Machine

Maritime/offshore technology

• Aptomar
• Bristow Group
• DNV
• Leco Marine
• Marine Cybernetics
• Maritime Robotics

IT: software, hardware, outsourcing

• Aegis Technologies
• Arcadian Networks
• Beyond Compliance
• C&C Reservoirs
• Ceetron
• Cisco
• Clavis Technology
• Cool Immersive
• Crosshairs Embedded
• Digital Drilling Data Systems
• Digital Oilfield
• Edinburgh Petroleum Services
• Energy Navigator
• Foster, Findlay & Associates
• Geomechanics International
• Hewlett-Packard
• IBM Global Services
• IHS Energy
• Impact Data
• Knowledge Systems
• Kongsberg
• Landmark Graphics
• Malibu Group
• Numerical Rocks
• OpenIT
• OpenSpirit
• Paradigm Geophysical
• Reality Mobile
• Rock Solid Images
• SAIC
• SAP
• Schlumberger Information Solutions
• Sense Intellifield
• SMARTZoft
• TI Data
• Verdande Technology

Pipeline

• CenterPoint Energy

Private equity/VCs

• Albion Alliance
• Bain Capital Partners
• Blue Sage
• Brinson Partners
• Cadent Partners
• Citigroup
• CSL Capital Partners
• Dominus Capital
• Energy Capital Partners
• Energy Ventures
• excellenceO2
• Fenway Partners
• FIG Partners
• Goldner Hawn
• Henderson Capital
• Investinor
• Lime Rock Partners
• Mitsubishi
• Navis Partners
• QUAD-C Partners
• Quintana Energy Partners
• Statoil Innovation
• Three Cities Research
• White Deer Energy

Professional services

• ABS Group
• DNV
• IBM Global Solutions
• PriceWaterhouseCoopers
• Shell Global Solutions

Financial technology, market infrastructure

• Caldwell Watson
• DTCC
• Firestar Software
• Qatar Insurance Services
• SWIFT

Environmental services/waste management

• Andritz
• CleanMex
• Control Recovery Inc.
• FCC Environmental
• Liquid Environmental Solutions
• Parallel Products
• PSC
• R360 Environmental Solutions

Publishing/information services

• Forrester Research
• Hart Energy
• New England Journal of Medicine
• PennWell
• Preston Publishing
• Primedia
• Science/AAAS
• Thomson
• Time Inc.

Power

• Entergy
• Prometheus Energy
• TXU

Public sector

• American Petroleum Institute
• California Energy Commission
• Canadian Consulate
• Colombia Ministry of Energy
• Gas Research Institute
• Ecuador Ministry of Mines & Energy
• Energy Information Administration
• Innovation Norway
• Minerals Management Service
• National Petroleum Council
• New Mexico Energy, Minerals and Natural Resources Department
• Petroleum Technology Transfer Council
• U.S. Department of Energy
• World Institute for Nuclear Security

Mining

• Dynamic Rock Support
• Rock Bolt NTNU
• ZONGE

Oil and gas

• Anadarko Petroleum Corporation
• BP
• Chevron
• Consolidated Natural Gas
• ExxonMobil
• Interstate Gas Pipeline Company
• Pemex
• Petro-Canada Resources
• PetroChina
• Royal Dutch/Shell Oil Company
• Statoil
• Stone Energy Corporation