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About Associated Environmental Systems

Associated Environmental Systems designs, manufactures, and supports standard and custom test chambers and battery testing fixtures that meet your most demanding requirements. Our products vary in size from small benchtop test chambers to very large walk-in or drive-in environmental rooms. 

AES’s robust test chambers simulate hot and cold temperature extremes, variations, and humidity and moisture conditions. We build salt spray and thermal shock chambers as well. While some companies rely on test labs to perform their testing, many others realize the benefits of in-house testing. These benefits include the flexibility to test according to their own schedule (and adjust if necessary), the ability to optimize the type of testing that works best for them, and substantial time and cost savings.

various test chamber images

Environmental Chambers for Nearly Every Industry 

Over the years, we have built an extensive and loyal customer base spanning the fields of aerospace, pharmacology, electronics, automotive, semiconductors, computers, and other industries worldwide. Associated Environmental Systems’ mission has always been to provide consumers with high-quality environmental test chambers that allow for independent, efficient, accurate, and controlled product testing.

Find your AES or B-M-A legacy test chamber.

Patented Battery Test Chambers

AES has been a leader in designing battery test chambers. The company holds a patent for ATPPRIME, a system for the high density testing of batteries within an environmental test chamber.

ATPPRIME is part of the All Test Platform series that also includes patent-pending ATPHEAVY (for high-amperage battery testing) and ATPFLEX (fixtures that can be integrated into chambers). AES supports companies seeking to make their batteries safer, faster-charging, and longer-lasting.

Our History


Associated Environmental Systems is formed in Wayne, NJ. From the very beginning, the company has taken great pride in creating test chambers for businesses to test their products for safety, reliability, and longevity. By 1961, AES has testing and manufacturing divisions in Wayne and a testing division in Burlington, MA.


The manufacturing division grows as other companies struggle to purchase testing equipment designed specifically to operate under the rigorous government and commercial specifications. 


Associated is acquired by Kidde Corporation and with its tremendous growth, the manufacturing division in Wayne, NJ, relocates to Lawrence, MA.


Associated establishes itself as a leader in custom chamber design by offering comprehensive designs and manufacturing services to customers who required non-standard test equipment. 


A longtime leader of innovation, Associated introduces this program controller, which made chambers easier to operate.


Associated celebrates 30 years of business.


AES establishes a manufacturing facility in Amesbury, MA.


Associated and BMA, Inc. merge and move the full manufacturing facility to Ayer, MA. The old BMA logo is placed in the top right corner of this chamber.


Beran Peter purchases Associated. He is still a proud owner to this day.


Service technicians start being deployed worldwide to help with the installation and maintenance of customers' chambers.


Associated adds a west coast sales division in Santa Clara, CA.


Associated Environmental Systems' grows the service team nationwide, offering installation, service, calibration, and repair of test chambers from all manufacturers.


Associated, under the name Associated Environmental Systems, moves into a 50,000-square-foot manufacturing facility in Acton, MA, with an additional 20,000 square feet of office space.


More than 60 years after its founding, AES is proud to continue to create and innovate chambers that are distributed around the world.



AES has a team of skilled SolidWorks and AutoCAD design engineers who create 3D models and renderings of each order you place. This process ensures that all your specifications are met precisely before manufacturing begins. Detailed schematics follow the test chamber throughout its construction so that each component looks and operates as it should within the unit.



AES reduces the lead times for test chamber orders. We do this with an in-house, computer-guided laser rig to cut out each test chamber component with precision, and we continue the work \with forming welding. In doing so, we can keep standard environmental test chambers in stock to reduce lead times and maintain an equally minimal lead time for custom environmental test chambers.



When you see an AES logo on the front of your test chamber, you know that you have the entire AES team behind you. AES provides friendly customer support over the phone or in person, and on-site facility visits for repair and maintenance. We will order the spare parts you need and install them for you. Before your AES-certified environmental test chamber is shipped to you from our factory, we put it through an in-house stress test to make sure that when your chamber arrives, it works as specified.



Integrity is at the forefront of AES's operation. We respect and guard all customer-desired confidentiality. AES policies assure our customers that both quality and social standards are met and maintained.

Learn About Social & Environmental Policy


Quality Policy:

Associated Environmental Systems is committed to satisfying customer requirements by maintaining an environment in which quality improvement is continuous.

Quality Object:

Realign existing quality management system to make a difference, obtain and maintain both ISO 9001:2008 and ISO 17025 registration, continuous improvement of supplier quality, and workflow efficiency through continuous improvement practices.

Because the success of our quality management system is essential for our competitiveness, it is vital that the employees of Associated Environmental Systems understand and adhere to our quality policy.

Associated Environmental Systems management team is committed to ensure that the quality policy;

  • Is appropriate to the purpose of the organization.
  • Communicates our commitment to meeting requirements and to continually improving the effectiveness of our quality management system.
  • Provides a focus for continual improvement through establishing, tracking, reviewing and maintaining Associated Environmental Systems quality objectives.
  • Is presented to new employees, and is continually reinforced by management to ensure understanding and commitment throughout the organization.
  • Is reviewed for continuing suitability during the management review process.

AES Quality Policy and Quality Objective PDF


Associated Environmental Systems supports the objectives of the US legislation on the supply of conflict minerals. Conflict minerals are mined in areas where armed conflict and the abuse of human rights are used as a method of control. These mines are mostly located in the eastern provinces of the Democratic Republic of the Congo (DRC). The minerals extracted from these mines are the "three T's": tantalum, tin, and tungsten, and gold.

The extraction and sale of blood diamonds, also known as "conflict diamonds", is a better-known phenomenon, which occurs under virtually identical conditions.

Policy Commitment:

AES respects both human rights and the environment, which is why we avoid using conflict minerals. We:

  • Support the aims and objectives of the U.S. legislation on the supply of "conflict minerals".
  • Do not knowingly procure specified metals that originate from facilities in the "Conflict Region" that are not certified as "conflict free".
  • Ensure compliance with these requirements, and ask our suppliers to undertake reasonable due diligence with their supply chains to assure that specified metals are being sourced only from:
    • Mines and smelters outside the "Conflict Region" or
    • Mines and smelters which have been certified by an independent third party as "conflict free" if sourced within the "Conflict Region".

AES Social and Environmental Policy PDF

Leadership Team

Michael Shirley

Michael Shirley

John O'Rourke

John O'Rourke
Vice President

Aaron Robinson

Aaron Robinson
Vice President of Sales & Service

Our Locations

At Associated Environmental Systems, we are proud to offer chambers that are entirely made in the United States of America. Our main headquarters with our manufacturing capacity is located on the East Coast in Acton, Massachusetts. In addition to our main Acton location, we have sales and service locations in the Midwest and on the West Coast.


East Coast

Sales and Service
8 Post Office Rd Acton, MA 01720


Sales and Service
Detroit and Grand Rapids

West Coast

Sales and Service
1446 Franklin Street Santa Clara, CA 95050