Energy Companies
Companies operating in energy production, distribution, or infrastructure.
KokoQuest tracks 2,696 energy companies across 38 directories, each compiled from live web sources and verified for contact details. Directories range from 20 to 109 companies and are rebuilt as suppliers are added or removed. Browse by category below, or search for a specific type of supplier.
38
Directories
2,696
Companies listed
71
Avg per directory
Feb 2026
Last updated
Cable And Wire Manufacturers
Directory of 109 cable and wire manufacturers in the US. Find custom harness assemblers, high-flex cable suppliers, and specialized wire extruders, plus contact info and capabilities.
Pipe Spool Fabricators
Directory of 105 pipe spool fabricators in the US. Find high-pressure process piping, exotic alloy systems, and modular skids specialists, plus contact info and capabilities.
Process Equipment Manufacturers
Find 101 process equipment manufacturers in Nationwide. Browse supplier listings with contact information and company details.
Switchboard Manufacturers
Find 99 switchboard manufacturers in Nationwide. Browse supplier listings with contact information and company details.
Production Equipment Manufacturers
Directory of 97 production equipment manufacturers in the US. Find custom machine builders, robotic integrators, and specialized assembly line providers, plus contact info and capabilities.
Pressure Vessel Manufacturers
Directory of 94 pressure vessel manufacturers in the US. Find high-pressure reactors, industrial process tanks, and shell-and-tube heat exchangers, plus contact info and capabilities.
Heat Exchanger Manufacturers
Directory of 92 heat exchanger manufacturers in the US. Find shell-and-tube, plate-and-frame, and air-cooled suppliers, plus contact info and capabilities.
Valve Manufacturers Industrial
Directory of 89 valve manufacturers industrial in the US. Find severe service, cryogenic, and fugitive emissions compliant valve suppliers, plus contact info and capabilities.
Electrical Enclosure Manufacturers
Directory of 89 electrical enclosure manufacturers in the US. Find NEMA 4X, hazardous location, and custom sheet metal enclosure providers, plus contact info and capabilities.
Subsea Equipment Manufacturers
Directory of 88 subsea equipment manufacturers in the US. Find specialized providers for ROV tooling, subsea production systems, and intervention equipment, plus contact info and capabilities.
Downhole Equipment Manufacturers
Directory of 85 downhole equipment manufacturers in the US. Find completion equipment providers, perforating gun assemblers, and wireline tool specialists, plus contact info and capabilities.
Pipeline Equipment Manufacturers
Directory of 82 pipeline equipment manufacturers in the US. Find main line valve producers, custom skid fabricators, and specialized pipe spool suppliers, plus contact info and capabilities.
Bushing Manufacturers
Directory of 82 bushing manufacturers in the US. Find sleeve bearings, self-lubricating composites, and flanged bushings, plus contact info and capabilities.
Pump Manufacturers Industrial
Directory of 82 pump manufacturers industrial in the US. Find centrifugal, positive displacement, slurry, and chemical process pump manufacturers, plus contact info and capabilities.
Substation Equipment Manufacturers
Directory of 80 substation equipment manufacturers in the US. Find HV/MV switchgear, power transformers, and SCADA-ready relay protection systems, plus contact info and capabilities.
Motor Manufacturers Industrial
Directory of 80 motor manufacturers industrial in the US. Find fractional horsepower, servo, and explosion-proof motor manufacturers, plus contact info and capabilities.
Drilling Equipment Manufacturers
Find 78 drilling equipment manufacturers in Nationwide. Browse supplier listings with contact information and company details.
Wellhead Equipment Manufacturers
Directory of 78 wellhead equipment manufacturers in the US. Find API 6A certified components, frac valves, and Christmas tree systems, plus contact info and capabilities.
Electrical Insulation Manufacturers
Find 72 electrical insulation manufacturers in Nationwide. Browse supplier listings with contact information and company details.
Reactor Manufacturers
Directory of 71 reactor manufacturers in the US. Find custom pressure vessel fabricators, modular bioreactor system integrators, and specialized alloy fabricators, plus contact info and capabilities.
Valve Actuator Manufacturers
Directory of 68 valve actuator manufacturers in the US. Find electric, pneumatic, and hydraulic actuators, specializing in critical process control and safety applications.
Energy Storage Manufacturers
Directory of 68 energy storage manufacturers in the US. Find custom battery pack assemblers, grid-scale BESS integrators, and residential backup system suppliers, plus contact info and capabilities.
Switchgear Manufacturers
Directory of 67 switchgear manufacturers in the US. Find arc-resistant metal-clad, low voltage drawout, and motor control center (MCC) solutions, plus contact info and capabilities.
Surge Arrester Manufacturers
Directory of 65 surge arrester manufacturers in the US. Find suppliers for substation, distribution, and transmission line arresters, plus contact info and capabilities.
Oilfield Equipment Manufacturers
Directory of 64 oilfield equipment manufacturers in the US. Find pumps, fracking equipment, pressure control, plus contact info and capabilities.
Relay Manufacturers
Directory of 63 relay manufacturers in the US. Find electromechanical power relays, solid-state signal relays, and high-frequency RF relays, plus contact info and capabilities.
Solar Mounting Manufacturers
Find 63 solar mounting manufacturers in Nationwide. Browse supplier listings with contact information and company details.
Compressor Manufacturers
Directory of 60 compressor manufacturers in the US. Find rotary screw, centrifugal, and specialty gas compressor suppliers, plus contact info and capabilities.
Battery Manufacturers
Directory of 57 battery manufacturers in the US. Find multi-chemistry, prismatic Lithium, high-energy density batteries, plus contact info and capabilities.
Busbar Manufacturers
Directory of 52 busbar manufacturers in the US. Find rigid busbar fabricators, flexible busbar specialists, and high-current power distribution solutions, plus contact info and capabilities.
Capacitor Bank Manufacturers
Directory of 50 capacitor bank manufacturers in the US. Find fixed, switched, and detuned capacitor bank solutions, plus contact info and capabilities.
Circuit Breaker Manufacturers
Directory of 48 circuit breaker manufacturers in the US. Find molded-case (MCCB), miniature (MCB), and ground fault circuit interrupter (GFCI) manufacturers, plus contact info and capabilities.
Alternator Manufacturers
Directory of 48 alternator manufacturers in the US. Find high-output, permanent magnet, and heavy-duty industrial alternator suppliers, plus contact info and capabilities.
Power Generation Equipment Manufacturers
Directory of 43 power generation equipment manufacturers in the US. Find cogeneration, steam generation, & microturbine systems, plus contact info and capabi...
Generator Manufacturers Industrial
Directory of 37 generator manufacturers industrial in the US. Find diesel generator sets, natural gas generators, and bespoke standby power systems, plus contact info and capabilities.
Transmission Tower Manufacturers
Directory of 35 transmission tower manufacturers in the US. Find lattice steel tower fabricators, tubular steel pole producers, and substation steel suppliers, plus contact info and capabilities.
Fuse Manufacturers
Directory of 35 fuse manufacturers in the US. Find automotive, industrial, and high-voltage fuse specialists, plus contact info and capabilities.
Solar Panel Manufacturers Usa
Directory of 20 solar panel manufacturers usa in the US. Find OEM, flexible, and high-efficiency solar panels, plus contact info and capabilities.
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