Butler Aerospace & Defense

Butler Aerospace & Defense is an engineering outsourcing firm serving the aerospace and defense industries, with work spanning defense and commercial aircraft, missiles, launch systems, space vehicles and unmanned aircraft. Its core offerings include structural design and analysis, product development, quality engineering, testing and certifications, technical publications and training development. The firm also provides engineering and light industrial staffing, semiconductor design and validation, and enterprise IT services.

Butler is part of the HCLTech group, which adds a wider digital and semiconductor footprint behind its engineering teams. The company reports about 30 active customers, including four Fortune 500 organizations, and says it has held long-running engagements with major clients for 35 years. Its office is in Shelton, Connecticut. Engineers can rotate across different engineering areas, and recruiting and operations are handled by a dedicated team.