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There are currently 553 companies listed in the Online Handbook.

Click a category below to jump to its section.
Number in parenthesis represent the total numbers of companies in that category/subcategory.

Aftermarket • Analysis & Software • Auxiliary Equipment
Boilers - Suppliers • Cogeneration & Combined Cycle • Compressors & Expanders
Electric Equipment • Energy Resources • Environmental Services
Fuel Cells • Gas Turbines • Instrumentation & Control
Manufacturing • Materials • Pumps
Renewable Energy • Safety Equipment • Services
Steam Turbines • Training & Education •

Aftermarket

• Accessories (3)
• Alignment (6)
• Analytical Laboratories (1)
• Balancing Equipment (3)
• Balancing Equipment - At- or High-Speed (4)
• Balancing Equipment - Low-Speed (3)
• Blades (7)
• Blades - Compressors (3)
• Blades - Diaphragm Nozzle (3)
• Blades - Grinding (2)
• Blades - Testing (3)
• Blades - Turbines (6)
• Borescopes (2)
• Coatings (8)
• Combustor Parts (2)
• Cooling Systems
• Demagnetizing Products & Services (1)
• Maintenance - Boilers (1)
• Maintenance - Compressor Specialist (11)
• Maintenance - Gas Turbine Specialist (7)
• Maintenance - General (9)
• Maintenance - Steam Turbine Specialist (10)
• Maintenance - Wind Turbine Specialist
• Maintenance Programs (9)
• Materials Supplier (3)
• Nozzles - Fuel (2)
• Nozzles - Turbine (2)
• Operations & Maint. - Cogeneration/Renewable Energy (3)
• Operations & Maint. - Gas Turbines (5)
• Operations & Maint. - Steam Turbines (6)
• Operations & Maintenance (8)
• Parts - Gas Turbines (16)

• Parts - Manufacturers (6)
• Parts - Steam Turbines (10)
• Parts - Suppliers (2)
• Radiator Repairs
• Reapplication Services (1)
• Recovery Systems
• Repair & Overhaul (21)
• Repair & Overhaul - Gas Turbines (7)
• Repair - Accessories (3)
• Repair - Bearings (10)
• Repair - Blades (9)
• Repair - Casings (5)
• Repair - Couplings (3)
• Repair - Gearboxes (6)
• Repair - Pumps (5)
• Repair - Rotors (5)
• Repair - Vanes (4)
• Rerates (5)
• Rings - Compressor Stator (1)
• Sealing Products (3)
• Shrouds - Turbine (3)
• Skids (1)
• Spin Testing Equipment (1)
• Stud Removal (2)
• Tools (2)
• Tools for Alignment (1)
• Total Plant Service (2)
• Tubes (1)
• Turbine Maintenance Tools (6)
• Upgrades (11)
• Vanes - Stators (2)

Analysis & Software (1)

• Design & Analysis (9)
• Design Audits (1)
• Failure Analysis (12)
• Finite Elements Analysis (4)
• Plant Design (1)
• Prognostics (3)
• Software & Engineering Programs (11)

• Stress Analysis (6)
• Testing (6)
• Testing - Lubrication (5)
• Testing - Telemetry (2)
• Turbine Blade Stress Analysis (4)
• Vibration Analysis (19)

Auxiliary Equipment (4)

• Acoustic Enclosures (5)
• Aftercoolers
• Air Chillers
• Air Dryers (2)
• Air Filters (8)
• Bearings (24)
• Bearings - Magnetic (7)
• Centrifuges
• Clutches (2)
• Combustion Monitoring (2)
• Combustion Systems (1)
• Compressor Washing Systems (6)
• Condensers (1)
• Cooling Systems (5)
• Couplings (14)
• Dampers (3)
• Deaerators (1)
• Discs (1)
• Efficiency & Performance Monitoring
• Enclosures
• Exhaust Systems (3)
• Expansion Joints (2)
• Fans & Blowers (4)
• Fasteners (Studs, Nuts, Bolts, etc.) (6)
• Filters (11)
• Fluid Drives (1)
• Fuel Systems, Treatment, Filters, & Pumps (4)
• Fuels
• Gas Turbine Exhaust Systems (5)
• Gas Turbines - Starters (2)
• Gaskets
• Gearboxes (9)
• Gears (5)
• Heat Exchangers (12)
• Heaters (2)
• Hydraulic Systems (2)
• Ignition Systems & Ignitors (1)
• Intake Filters (7)
• Lube Oil System Accumulators (LOSA) (1)

• Lubricant Purification (1)
• Lubricants (5)
• Lubrication Systems (9)
• Lubrication Systems - Coolers (1)
• Lubrication Systems - Filters (5)
• Lubrication Systems - Pumps (1)
• Noise & Vibration Suppression Equip. (3)
• Oil Cooling
• Oil Purification Equipment (5)
• Packing Rings (4)
• Pipes (5)
• Regenerators & Recuperators
• Seals (13)
• Seals - Gas (2)
• Seals - Mechanical (4)
• Seals - Oil (2)
• Shaft Current Control Equipment
• Shims (3)
• Silencers (6)
• Skids (4)
• Starters (2)
• Surge Suppressors
• Switches
• Tanks (1)
• Torque Converters (2)
• Transmissions (2)
• Turbine Cooling
• Turbine Cooling - Chilling Systems (3)
• Turbine Cooling - Fogging (4)
• Turbine Cooling - Inlet Cooling (5)
• Turbine Cooling - Media Based (2)
• Turbine Cooling - Overspray (1)
• Turning Gear Modules
• Vacuum Equipment (2)
• Valves (19)
• Water Monitoring
• Wind Gearboxes (1)
• Wind Towers

Boilers - Suppliers

• Boilers (2)

Cogeneration & Combined Cycle

• Cogeneration Eng. & Consulting Services (3)
• Cogeneration Systems (5)
• Combined Cycle Plants (9)
• Cooling Towers (1)

• HRSG (3)
• Machinery for Cogeneration (4)

Compressors & Expanders

• Compressors (24)
• Compressors - Axial (3)
• Compressors - Centrifugal (20)
• Compressors - Integrated
• Compressors - Isotherm (1)
• Compressors - Packagers (8)

• Compressors - Reciprocating (7)
• Compressors - Screw (8)
• Expanders (9)
• Pipeline Boosters

Electric Equipment

• Electrical Parts & Auxiliaries
• Electrical Systems (2)
• Electrical Systems - Flywheels
• Generators & Alternators (7)

• Generators - Auxiliary Power Units
• Motors - Electric (7)
• Variable Frequency Drives (5)

Energy Resources

• Combined Heat & Power Plant (CHP) (4)
• Energy Service Contracts
• Energy Trading
• Power Plants (6)

• Power Plants - Biomass
• Power Plants - Steam
• Power Services (2)

Environmental Services

• Absorbents
• Air Monitors
• Anti-Icing (1)
• Ash Control
• Catalysts (2)
• Continuous Emission Monitoring Systems (1)
• Dust Suppression

• Emissions Reductions (7)
• NOx Control
• Pollution Controls (1)
• SCR
• Wastewater Treatment (2)
• Water Treatment (2)

Fuel Cells

• Fuel Cells

Gas Turbines (1)

• Gas Turbines (23)
• Gas Turbines - Aeroderivatives (2)
• Gas Turbines - Auxiliary Power Units (1)
• Gas Turbines - Combined Cycle (3)
• Gas Turbines - Electrical Generation (2)
• Gas Turbines - Industrial (4)
• Gas Turbines - Marine
• Gas Turbines - Mechanical Drive (4)

• Gas Turbines - Packagers (4)
• Gas Turbines - Power Generation (12)
• Gas Turbines - Power Turbines (2)
• Gas Turbines - Refurbished (2)
• Generator Sets - Gas Turbines (5)
• Microturbines (2)

Instrumentation & Control (2)

• Actuators (6)
• Analyzers (1)
• Automation (1)
• Condition Monitoring (13)
• Control Systems & Governors (12)
• Control Systems - Optimization (9)
• Control Systems - Retrofit (11)
• Data Loggers & Recorders (1)
• Detection Systems (3)
• Flow Meters (3)
• Gas Analyzers (3)
• Gauges & Indicators (3)
• Instrumentation & Controls (14)
• Instrumentation - Telemetry (3)

• Monitors (3)
• Remote Monitoring & Diagnostics (9)
• Sensors (3)
• Sensors - Pressure (1)
• Sensors - Temperature (5)
• Shaft Grounding & Condition Monitoring (1)
• Tachometers
• Testing Equipment (7)
• Torquemeters (2)
• Transducers (1)
• Turbine Control Systems (10)
• Vibration Monitoring Equipment (18)
• Web Deflection

Manufacturing (1)

• 3D Printing (6)
• Castings (1)
• Fabricators (6)
• Forgings (2)
• Grinding (5)
• Impellers (3)

• Machine Tools (3)
• Machining (14)
• Manufacturers (2)
• Milling (5)
• Welding (3)

Materials

• Alloys (1)
• Carbon & Carbon Products (2)
• Ceramic Parts & Materials
• Fuels - Additives

• High Temperature Metals (2)
• Insulation (1)
• Plastics (1)

Pumps

• Pumps (9)
• Pumps - Centrifugal (2)

• Pumps - Screw (1)

Renewable Energy

• Energy Systems (5)
• Geothermal Power (1)
• Hydro Turbines (2)

• Solar Energy (1)
• Wind Turbines (1)

Safety Equipment

• Emergency Shutdown (4)
• Explosion Isolation
• Explosion Suppression
• Fire Detection Equipment (1)

• Fire Protection & Suppression (1)
• Safety Clothing & Equipment
• Sprinkler Systems

Services (1)

• Asset Management Services (5)
• Associations (1)
• Cleaning Services (1)
• Coating Services (4)
• Construction Contractors (2)
• Consulting Services (22)
• Corrosion Detection & Prevention
• Dimensional Inspection & Re-engineering (2)
• Engineering Services (24)
• Environmental Services (1)
• EPC (4)
• Equipment - Leasing (5)
• Equipment - Used (1)
• Field Service (20)
• Grouting (2)
• Heat Treating - Furnaces (2)

• I&C Service
• IGCC (2)
• Inspection (4)
• Installation (4)
• Insurance
• Market Research (5)
• Plant Operation & Management (3)
• Project Engineering (2)
• Recruiters & Employment Agencies (3)
• Research & Development (5)
• Research & Development - Seals (1)
• Service for Turbines & Generators (8)
• Turbomachinery Shipping & Storage Containers (2)
• Turnkey Power Plant Development (1)

Steam Turbines

• Generator Sets - Steam Turbines (4)
• Steam Turbines (22)
• Steam Turbines - Electrical, Fossil Fuels
• Steam Turbines - Electrical, Industrial (1)
• Steam Turbines - Electrical, Nuclear
• Steam Turbines - Mechanical (4)

• Steam Turbines - Mechanical, Marine
• Steam Turbines - Mechanical, Process (2)
• Steam Turbines - Packagers (4)
• Steam Turbines - Refurbished (6)

Training & Education

• ASME Certification
• Books & Magazines (1)
• Education (2)

• Publishing
• Training (4)

Questions? Comments? Please contact Bob Maraczi, Directory Editor
RMaraczi@mmhgroup.com / (203) 523-7040