Portfolio & Experience

75 Years Supporting the Department of Energy

With a company history of nearly 75 years supporting the Department of Energy (DOE), Day & Zimmermann and SOC together have provided Safeguards, Security, Emergency Services, Management & Operations (M&O), Architecture and Design (A/E) services to protect national security assets that include Category I Special Nuclear Material in research, development, and manufacturing environments.

SOC fills a critical role in protecting the research and development that supports the nation’s nuclear deterrent and other important national security missions. In addition to SOC's work at Nevada National Security Site, SOC provides security and emergency services operations at the Pantex Plant and Y-12 National Security Complex on behalf of the National Nuclear Security Administration. Previously, for more than twenty years, SOC provided best-in-class Safeguards and Security services at one of the largest national laboratories supporting NNSA, safeguarding national security assets in a federally-funded research and development environment.

SOC delivers award winning security solutions for three Department of Energy National Security Sites, providing protection of Category 1 Special Nuclear Materials, personnel and facilities.

"All accounts point to an absolutely flawless security operation. The [DOE] Secretary's visit pointed to a high level of preparedness and professionalism. Another great deed done well."
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Safeguards Division Leader, Director of Security Operations


  • Security
  • Energy
  • Operations & Maintenance
  • Architecture & Engineering


  • Installation Security
  • Infrastructure & Logistics