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View ImprO2's top competitors like AQ Consulting, LLC, Aero2 Inc, and AtmosAir Solutions.

CleanAir Engineering
Since its founding in 1972, CleanAir has an established reputation for excellence on projects of all sizes, ranging from boiler, APC equipment and cooling tower efficiency testing to SCR baseline testing and optimization to hazardous air pollutant (HAPs) studies and CEMS RATAs. The strength of CleanAir's organization is its solid base of professionals with boiler and air emissions testing, combustion, flue gas cleaning, engineering, heat rejection, regulatory, and analytical experience which have performed thousands of projects on hundreds of utility, industrial, municipal solid-waste (MSW) and hazardous waste boilers in the United States and abroad. In addition to the strength of our professional organization, CleanAir has extensive equipment resources maintained through CleanAir Instrument Rental as well as CleanAir Express, which provides in-house manufacturing capabilities for customized sampling equipment such as HVT probes and multi-point sampling grids.
Palatine, Illinois, US
Private
$31.8M Revenue
http://www.cleanair.com
147 Employees
AtmosAir Solutions
AtmosAir Solutions of Fairfield, CT is a leader in solutions for healthier indoor air. The company provides bi-polar ionization air purification technologies that actively and continuously work to bring the benefits of improved air quality to life in all types of built environments. Every day, AtmosAir is helping the world to see air differently, with solutions that measure, validate, and display real-time indoor air quality data, and deliver ongoing, tangible benefits to human health and productivity. AtmosAir technologies are installed in more than 7,500 buildings worldwide, including commercial offices, health care settings, hotels, cruise ships, universities, and sports facilities. More information can be found at www.atmosair.com
Fairfield, Connecticut, US
Private
$30M Revenue
https://linktr.ee/atmosair
44 Employees
Écosphère
For over 35 years, Écosphère has been providing consulting and engineering services in the environmental field. It contributes its expertise to nature conservation and the integration of biodiversity into development projects, activities, and public policies. Écosphère relies on a team of engineers and technicians who are convinced that ecosystems are irreplaceable sources of wealth that every project must consider. The company allows these passionate employees to thrive in a supportive environment: mandatory night shifts in pairs, training programs, and risk prevention initiatives. Key figures: • 19 branches and offices • 220 employees • Over 10,000 references (audits and technical assessments, ecological engineering, natural heritage inventories, biodiversity policies, geographic information systems, etc.) To continue its growth, Écosphère is recruiting. Visit our website to discover new opportunities.
FR
Private
$5.7M Revenue
http://www.ecosphere.fr
251 Employees
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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