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.


I have worked with Controlled Environment Management (CEM) for over five years.  CEM’s staff is very professional, courteous, trustworthy and dependable.  I would not consider choosing anyone else.

G. Adams
QA Coordinator

Latest news

  • Carbon Capture: A Little Dab’ll Do Ya December 11, 2017
    NewsAsphalt-based filter sequesters greenhouse gas at wellhead.Contributed Author: Mike Williams, Rice UniversityTopics: Contamination Detection and Control
  • 3D Printing Feels the Need for Speed December 11, 2017
    NewsBy using laser-generated, hologram-like 3D images flashed into photosensitive resin, researchers have discovered they can build complex 3D parts in a fraction of the time of traditional layer-by-l …
  • Tailorable Nanoscale Emulsion Used for Drug Delivery December 11, 2017
    NewsThe collaboration reported that the “top down” approach imparts a remarkable flexibility on the number and range of surface modifications for drug delivery, molecular imaging, engineered vaccines, …
  • Superconductivity Riddle Solved with Stripes December 11, 2017
    NewsNumerical simulations reveal "rivers of charge" in materials that become superconducting at high temperatures.Contributed Author: Whitney Clavin, CaltechTopics: Semiconductors
  • Narrow Graphene Ribbons Synthesized Using Just Light, Heat December 8, 2017
    NewsThe tiny structures could be next-generation solution for smaller electronic devices.Contributed Author: Katherine Kornei, UCLATopics: Graphene

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