Harper Engineering Co. is an aerospace manufacturer focused on delivering high-quality solutions and dependable service to its customers. Based in Renton, Washington, the company describes its work as helping shape the future of design in flight, with an emphasis on precision, reliable delivery, and product quality. Its offerings include panel fasteners, latches, seat track fittings, and secondary barriers, alongside other aerospace components. Harper also provides manufacturing capabilities such as precision machining and working with composite materials, supporting customers across a range of component and production needs.

The company highlights its performance as a Boeing Premier Bidder and reports 99.9% on-time delivery and 99.9% quality, reflecting its stated commitment to consistent results. Harper shares company and industry updates through articles and provides information about its products, capabilities, careers, and customer contacts. In February 2026, Harper completed its sale to Loar Holdings Inc. The company said its leadership team would remain in place and that it would continue operating under the Harper name, supported by Loar’s resources and long-term aerospace investment strategy.