Aerospace & Defense focuses on the development, production, and maintenance of aircraft, spacecraft, and defense systems. This cluster includes aerospace manufacturers, defense contractors, research institutions, and various support services that work together to enhance national security and technological advancement. 

Government & Public Service focuses on planning, managing, and providing services at the local, state, and federal levels. This cluster includes government agencies, public administration bodies, and various support services that work together to ensure effective governance and public welfare. 

Key Components  

• Aerospace Manufacturers: Companies that design and produce aircraft, spacecraft, and related systems. 
• Defense Contractors: Firms that develop and supply military equipment and defense technologies. 
• Research Organizations: Universities and research institutes that conduct aerospace and defense-related research and development. 
• Government Agencies: Bodies such as the Department of Defense, NASA, and local, state, and federal agencies that provide funding, policy support, and regulatory oversight. 
• Public Administration Bodies: Organizations that manage public programs and services, such as city councils and state departments. 
• Law Enforcement and Public Safety: Police departments, fire services, and emergency management agencies that ensure public safety. 
• Regulatory Agencies: Bodies that oversee compliance with laws and regulations, such as the Environmental Protection Agency (EPA). 
• Support Services: Organizations that offer ancillary services like maintenance, repair, and overhaul (MRO), supply chain management, cybersecurity, public policy research, legal support, and community outreach. 

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• Aerospace Industries Association 

• National Defense Industrial Association 

• American Institute of Aeronautics and Astronautics 

• National Association of Schools of Public Affairs and Administration 

• American Society for Public Administration