From a Hong Kong start-up to a multi-plant manufacturer serving the Americas, Europe, and Asia-Pacific.
Longmax was founded in 1994 and has grown into one of the leading Electronics Manufacturing Services providers in Hong Kong.
Over the years, Longmax has delivered turnkey OEM solutions to customers worldwide. With strong project management discipline, we maintain control over quality, delivery, and cost on every engagement. Customers benefit from competitive, end-to-end services that include design, circuit fabrication, injection mold design and building, plastic injection, die-casting, PCB assembly, final system assembly, functional testing, reliability testing, compliance certification, packaging, and logistics management.
As an industry leader, we pair extensive research and development capabilities with state-of-the-art production facilities, allowing us to consistently introduce new product ideas and cutting-edge innovations. We are committed to staying ahead of industry trends so that our customers stay competitive in fast-moving markets.
Great service. Concept design, precision tooling, plastic injection, SMT, full assembly, and product testing — handled in one place.
Highest standards. We exceed customer expectations on cost, quality, delivery, and support, backed by ISO certifications.
Professional team. A highly skilled workforce across design, engineering, production, and quality assurance.
Ethics. Integrity, honesty, fairness. Customer IP is protected without compromise.
With headquarters in Hong Kong, manufacturing in Dongguan and Bắc Ninh, and service across the Americas, Europe, and Asia-Pacific — we deliver and support on the ground in over 60 markets.
Tell us what you want to build. Our business development managers will get back to you within one business day.