IESG Integrity Energy Solutions Group, Brooklyn, NY

IESG Client Services

Energy Solutions

Our premiere energy solutions group brings the latest in efficiency solution technologies. Get info for your facility and operations improvement projects. Register for IESG consulting through our demo signup.

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3M Glass Energy

Energy Savings | Security Film

Specializing in both residential & commercial buildings as well as retail strip centers large or small.

Building iQ

BMS Energy Savings Software

IoT software installed in days, deployed in weeks, and delivers a positive ROI in months, with a guaranteed payback.

Cypress Envirosystems

Wireless Pneumatic Thermostat

Cypress Envirosystems provides solutions to retrofit existing commercial buildings and industrial facilities for energy efficiency.

ElectroCell Systems

Side Stream Particle Precipitator

Advanced Side Stream Particle Precipitator increases efficiency and minimizes risk of damage of HVAC water systems.

Greffen Systems

Intelligent Boiler Load Control

The M2G is an advanced intelligent boiler control that optimizes the heating efficiency of hot water boilers.


Removable Insulation Jackets

Thermaxx Jackets can be designed for use in extreme temperatures and are used in a variety of places including universities, hospitals, factories & residential buildings.