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October 15, 2026

Entarian Wins CISA Enterprise Engineering and Operations Support Services (CEEOSS) Contract

Entarian has been awarded the Department of Homeland Security Cybersecurity and Infrastructure Security Agency (CISA) Office of the Chief Information Officer (OCIO) Enterprise Engineering and Operations Support Services (CEEOSS) contract. The team has supported the CISA OCIO CEEOSS requirement since 2022, delivering secure, stable, and modern enterprise IT services end to end.

“We are grateful to CISA for the trust placed in Entarian, and proud of the team whose work made this award possible,” said Mark Lee, chief executive officer of Entarian. “Modern enterprise OCIO services are how the agency stays secure, mobile, and able to adopt new technology without losing operational continuity. We will honor that trust by delivering, every day, in support of CISA’s mission.”

Under CEEOSS, Entarian will support CISA OCIO across five areas:

  • Technology Evaluation and Integration
  • Enterprise Technology Services and Solutions Strategy and Architecture
  • Technical Solutions Engineering and Implementation
  • Operations and Maintenance Support
  • Program and Project Management

This work includes disciplined evaluation and integration of new capabilities, modernization of mission systems, and recovery of critical cloud services in a way that protects mobility and endpoint workloads, data integrity, and mission continuity. The result is secure, high-quality, and cost-effective IT services and solutions.

The award reinforces the Entarian’s role in a modern, secure IT landscape for CISA.

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