Sienna is a comprehensive manufacturing firm. It offers a range of products including PCBA Design & Assembly, Wire Harnesses, and Magnetics. It also specializes in Electro-Mechanical Integration (EMI), Sheet Metal Fabrication, and Machining. Furthermore, it provides Injection Moulded Plastics, complete system integration, and product testing. This vertical integration allows Sienna to control all stages of production, ensuring quality and efficiency.