Dranetz BMI manufacturers a variety of power monitoring equipment including power monitoring loggers and portable power monitoring systems.

PowerScape Energy Management Systems from Enetics consist of multiple PowerNode Recorders to monitor and record power consumption and quality. Collected data from this system is stored in a SQL database and is accessible to authorized users on the LAN or over the internet. This system is designed to improve efficiency and reduce energy cost as well as monitoring incoming power quality.

Power quality monitoring equipment from National Instruments combine rugged hardware for waveform measurements with easy to use software designed to perform power monitoring, power quality analysis and power metering analysis. Supported measurements include root-mean-square (RMS), power factor, frequency analysis (fast Fourier transform), and harmonic analysis in phase over multiple channels. With the NI LabVIEW graphical development environment and NI power monitoring systems, you can integrate hardware measurements with analysis and reduce development time.

Powermonitoring.com provides web-based power quality monitoring services for a monthly fee. This service offers 24/7 access to power quality data without the hassle of constantly connecting to power monitoring devices to download the latest data.

The Power Watch Logger from ACR Systems records essential power quality data and disturbances. The system operates with no exposed wiring and has the capacity to record up to 4000 power quality events and features an optical alarm to indicate such events as they occur.

PowerSight products from Summit Technology are among the smallest, most cost effective instruments for measuring and analyzing three phase electric power. These products come in three models and are capable of monitoring, logging and analyzing voltage, current and power for three phase, two phase, single phase and 4 wire data.

Electro Industries/Gauge Tech manufacturers power meters, energy meters and power analyzer products including power and energy meter combos, revenue meter with power quality analyzer, multi-function data logging and waveform recording meters, multi-function transducers and submetering equipment.

Metrum Information Storage offers the imc POLARES; a power network quality analyzer for standard compliant measurements according to EN 50160, as well as a power meter and event logger, all in one instrument.

AC Scout manufacturers power monitoring systems for mission critical applications, remote locations, home audio systems and power back up support applications. The ACScout-V3 is an easy-to-use and reliable AC power monitor that plugs into an electrical outlet to log and analyze surges, outages and variations in voltage and frequency as well as ambient temperature.

Duncan Instruments offers a variety of power and energy monitoring equipment including power meters, harmonic distortion analyzers, power factor meters, power quality analyzers and energy loggers.

Measure Logic manufacturers several types of power monitors and energy meters including panel mount systems, DIN rail mount systems, surface mount systems and socket replacement mount systems.

Cyber Sciences offers an engineer's perspective in the design of their monitoring equipment. Their two main products are a Sequence Event Recorder designed for critical applications that offers 1ms time stamped event reporting and a Satellite Time Reference unit using GPS to help with power system  device synchronization.

Siemens Energy manufactures power quality monitoring solutions including power quality recorders, universal transducers and power meters. These systems assist in monitoring and recording faults, power events, voltage dips and surges.

Elcom makes a variety of power quality analyzers including field instruments and stationary instruments as well as compatible software for the recording and analysis of power quality data.

Fluke makes a variety of power quality analyzers and monitors as well as power quality data loggers.

AEMC designs and manufacturers a variety of power quality monitors and meters including digital mutimeters, clamp-on harmonic meters and the AmpFlex series flexible current probes.

Hioki's line of power measuring instruments includes products for power quality problems and power supply maintenance including power quality analyzers, clamp on power testers, DC and AC power line measurers and production line power testers.

PowerSight manufactures a variety of meters for power quality, energy and data logging including the PS4500 PQ Analyzer, PS2500 Power Analyzer and the PS250 Power Logger as well as a variety of current probes and voltage probes.

Carlo Gavazzi manufactures a broad range of power quality meters and transducers designed to provide early warning of power quality issues so preventative action can be taken before a major failure occurs.

Crompton Greaves makes power quality monitors for measuring and logging voltage and current on all three phases as well as frequency and power factor data. These instruments are designed to monitor transformers and motors in distribution and industrial networks.