CSS delivers specialized cleanroom services for aerospace and other mission-critical environments. Our trained teams of employee owners safely operate high-reach industrial equipment around sensitive flight hardware and ground support equipment while maintaining strict cleanliness and contamination-control standards. 

From ongoing cleanroom maintenance and site-specific protocol development to workforce training, CSS provides the expertise needed to support safe, clean, and operationally ready facilities. 

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Beakers on a lab counter

An Approach to Assessing Laboratory Space 

CSS employee owners were part of a team of scientists at the National Institutes of Health who developed an approach to evaluating new laboratory space to determine if the space will fit operational needs. This concept, titled The BaseLINE Approach, combines traditional safety processes with additional safety and environmental factors to assess before operations begin.…

Aerial view of a burned facility surrounded by a woods

Responding to Tangipahoa River Contamination 

Following a fire at Smitty’s Supply facility in Louisiana’s Tangipahoa Parish on August 22, 2025, a CSS employee owner supporting the Environmental Protection Agency’s Superfund Technical Assistance and Response Team (START) sub-contract deployed to the scene on August 31 to assist with response efforts. Initially the staff member worked on logistics at the staging warehouse.…

Supporting National Ocean Service Financial Management Centers

CSS employee-owners bring exceptional dedication and expertise to the National Ocean Service (NOS) Agreements, Grants, and Acquisitions Division, supporting several Financial Management Centers (FMCs) through complex, high‑priority initiatives.  CSS has played a key role in helping FMCs navigate the U.S. Department of Treasury’s G‑Invoicing system during a period of transition and heavy workload. CSS staff recognized the challenges many teams were facing and broke down the system’s complex requirements…