About Us

For over 40 years, Rees Scientific has been the undisputed leader in environmental monitoring and compliance.

With the largest regional service team and fully qualified customer success partners nearby, your critical equipment is consistently monitored and maintained.

Reduce downtime and ensure compliance—so you can focus on what matters most to your facility.

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Our Story

Rees Scientific specializes in protecting your valuable assets.

Since 1982, Rees Scientific has been the industry standard for continuous automated temperature monitoring. Our systems are designed to keep a close eye on the temperature of any storage, ranging from +1300 to -196 °C. From stability chambers, refrigerators, freezers, LN2 Tanks, incubators, animal holding rooms, ultra-low freezers, cold rooms, to clean rooms, our systems monitor all critical equipment and parameters such as temperature, humidity, differential pressure, lighting control, carbon dioxide, oxygen, light, and air changes per hour.

Today we continue to lead the field, taking input from our clients and learning from environmental challenges. We ensure that critical equipment and devices are monitored and maintained. We’ve invested a considerable amount of time and resources on our quality iniatiative. We believe this investment will help provide a higher level products and services. As an 9ISO/IEC 9001:2015 certified & ISO/IEC 17025:2017 accredited company, Rees Scientific is constantly upgrading policies, procedures and protocols to comply with the most stringent regulations.

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At Rees Scientific, we are deeply committed to serving our clients in the Health and Life Sciences industry with unwavering reliability and precision. We understand the critical role you play in improving lives, and we are honored to be your trusted partner in maintaining compliance, protecting your products, and ensuring operational excellence.  Our mission is simple yet profound: to provide the most advanced environmental monitoring solutions that empower you to focus on what truly matters—innovation, patient care, and achieving excellence in a regulated environment. 

Sandip Mukerjee

President & CEO

Our systems are fully validated and Title 21 CFR part 11 compliant. Our validation protocols are regarded as the industries most extensive and are designed to meet today's strict standards set by the FDA, CDC, WHO, CxP, AABB, Joint Commission , USP <797>, USP <800>, ASHP, CAP, ad other regulatory bodies. Automated reporting, alarm notification, audit trails, and complete data encryption are just a few of the standard features to help you meet your regulatory requirements. Our goal is to be the quality provider of systems, services, and solutions.

We take pride in our regional service and support capabilities. We employ regionalized sales and service engineers who are fully qualified to solve the most difficult of technical problems. Our fleet of stocked service vehicles are ready to be dispatched to handle all on-site service. To our knowledge, no other monitoring providers come close to the 100 plus dedicated factory employed, factory trained field technicians we have located regionally. Regardless of your location, our service and 24/7/365 technical support teams can ensure needs are responded to promptly.

Rees Scientific has more than 230 employees globally, with our headquarters in Trenton, NJ. Our experienced project managers and technical support teams are dedicated to our customers, ensuring that systems are well-maintained, up-to-date, and operating at peak performance. Our North American operations are further strengthened by our presence in Europe, where strategically located native European team members provide sales and service support to our international customers.

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We proudly serve a variety of industries, including blood banks, research institutions, hospitals, repositories, pharmaceuticals, and biotech, solving their unique needs with flexible delivery methods: on-premises or SaaS. Additionally, we continue to expand support for new sensors and probes, ensuring that our solutions evolve alongside the industry's needs and requirements.

Sandip Mukerjee

President & CEO

colleagues gathered around a laptop

Our Leadership Team

Meet the leaders behind the team of experts who work tirelessly to provide 24/7/65 unparalleled environmental monitoring excellence, support and compliance.

Meet Our Team

Careers

Explore our career opportunities and take the first step towards a rewarding journey with Rees.

Learn More