Longenecker & Associates, Inc. is a U.S.-based professional services firm focused on nuclear, national security, clean energy, and environmental programs, with extensive work supporting the U.S. Department of Energy (DOE), the National Nuclear Security Administration (NNSA), and their contractors and national laboratories.
The company provides management and technical support for high‑hazard operations, including program and project management, nuclear safety and regulatory compliance, mission/performance assurance, readiness and startup, quality and risk management, and operations, decommissioning, and remediation support. Longenecker & Associates works with government agencies, prime contractors, and industrial operators to help strengthen safety, reliability, and compliance at nuclear, radiological, and chemical processing facilities—areas that intersect with the chemical industry through process safety, waste treatment, and environmental management.
