About

Quality Management & Technical Staff Resources

TSSD Services, Inc. (TSSD) is a multidisciplinary professional and technical staff augmentation services firm founded in 1999 with a mission to provide quality management and technical staff resources to the energy and utility sector with an emphasis on the nuclear industry. TSSD maintains a staff of professionals providing services in all stages of the nuclear plant lifecycle: construction, commissioning, operations, capital improvements, decommissioning and site closure. TSSD personnel have extensive experience and expertise in managing successful, safe and cost-effective fuel transfer campaigns, dry fuel storage operations and decontamination, demolition and decommissioning projects.

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Since 2024, TSSD Services Inc. is a wholly-owned subsidiary of NUVIA which is part of VINCI group and nuclear division of Soletanche Freyssinet. NUVIA is an international company that has been operating on highly regulated and sensitive industrial sites for over 60 years. Drawing on its experience in the nuclear industry, NUVIA supports its industrial clients in sensitive and highly regulated environments throughout the life cycle of their installations. NUVIA operates in numerous business sectors, including nuclear energy, civil and military defense, health, and the environment, offering its clients a full range of support services, engineering and the products necessary for the design, construction, operation and dismantling of their industrial installations.

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Key Figures

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Our Team

Our employees are our strongest asset, and we value their well-being, continuous training and growth, to provide a high-level quality service to our clients. About 60% of our employees are field workers, with on-site administrative and project management employees making up the difference.

Employee turnover is low and average duration of an employee with the company is at least 5 years.

President

Image of Jennifer Wood

Jennifer Wood

Director - North America: USA & Canada

Image of Sandrine Toupiol

Sandrine Toupiol

WIDE RANGE OF EXPERTISE

TSSD provides a broad range of services and support to the government, utilities and private and public companies. TSSD has become an industry leader in guiding organizational change and transition, nuclear decommissioning planning and project execution. TSSD personnel provide consultation, management support and technical expertise to our clients on range of complex issues including organizational transition, staffing plans, project execution, financial governance, regulatory compliance and litigation support. TSSD is experienced in working with clients using or contemplating all contract and transactional models including self-performance, decommissioning operations contractor (DOC) / decommissioning general contractor (DGC), license stewardship and asset sale as means for plant decommissioning or the disposition of assets.

OUR EXPERTISE

Partners in Project Management Since 1999

TSSD personnel were a key component of the team that successfully decommissioned Maine Yankee Atomic Power Co., Connecticut Yankee Atomic Power Co., and Yankee Atomic Electric Co.’s (3 Yankees) respective nuclear power plants and continues to provide technical and management services to support long term dry fuel storage operations. TSSD has been, and currently is, involved in many decommissioning projects including: Fort Calhoun Station, Vermont Yankee Nuclear Power Station, Zion Nuclear Power Station, San Onofre Nuclear Generation Station, Crystal River Nuclear Plant, Humboldt Bay, Pilgrim Nuclear Power Station and La Crosse Boiling Water Reactor.

In recent years, TSSD has embarked on a series of Department of Energy (DOE) remediation and disposition projects including the Separations Process Research Unit Disposition Project, Oak Ridge Reservation Remediation Project and Paducah Gaseous Diffusion Plant Deactivation and Decommissioning Project. These projects focus on environmental cleanup activities, including: remediation, waste management, disposition of contaminants, and facility decontamination and decommissioning. TSSD also services other energy sectors and has been, and is currently, involved in wind and hydro projects nationwide.

TSSD is a self-certified small business.