About Us

CEM was founded in 2002 with the mission to build long-term relationships with companies and facilities associated with the biotechnology, pharmaceutical and research community.

Our Founder and President, Jeff Raposa has been working in the industry for over 25 years. His first industry job experience came in the early 1990s while working at such companies as Genentech, Amgen, Roche, Bayer and Baxter…


Cleanroom Testing and Certification
Biological Safety Cabinet Testing and Certification
USP <797> Sterile Compounding Facilities

Why Choose CEM?

Expertise CEM is committed to providing every customer with experienced, professional, and detail-driven management and service.

Integrity Our philosophy in business and in life is “We Do What We Say We Will Do”.

Loyalty You can depend on CEM to partner with you and your business. We strive to not only meet your needs, but to exceed them.


Donor Network of Arizona has a great relationship with Controlled Environment Management (CEM).  They have kept our facility up and running for several years.  Repairs are always timely and cost effective and customer service is always a focus.  We would definitely recommend CEM’s services!

Rhiannon Knueven
Tissue Recovery Manager

Latest news

  • Flexible DNA “Building Blocks” Imaged in 3-D February 23, 2018
    NewsResearchers generate first images of 129 DNA structures.Contributed Author: Laurie Chong, Berkeley LabTopics: Life Sciences
  • Computers Are Becoming More Brain-Like February 23, 2018
    NewsA combined memristor and transistor can process information and store memory with one device.Contributed Author: Amanda Morris, Northwestern UniversityTopics: Electronics
  • A Nanoscale Peek Inside Mammalian Cells February 23, 2018
    NewsResearchers peer inside mammalian cells, producing intricately detailed, 3-D images of the tiny structures within and tracking molecules’ subtle movements.Contributed Author: Taylor Kubota, Stanfo …
  • Discovery of New Nanoparticle Sheds Light on Cancer February 22, 2018
    NewsA new cellular messenger may help reveal how cancer cells co-opt the body’s intercellular delivery service to spread to new locations in the body.Contributed Author: Weill Cornell MedicineTopics:  …
  • Miniscule Diamond Anvils Put the Squeeze on Materials February 22, 2018
    NewsMolecular technique holds potential to make chemistry greener and more precise.Contributed Author: Andrew Gordon and Louise Lerner, University of ChicagoTopics: Nanotechnology

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