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Hong KongDirectory
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Kaierwo
凯尔沃New-energy prototypes: battery packs, charger housings, inverters, cooling modules
Shenzhen · GuangmingSYS Technology
商一科技Fast-turn SMT: rush from 6 hours, samples in 3–4 days
Dongguan · Dongguan (other town)JLCPCB
嘉立创Started in 2006 at a one-metre counter in Huaqiangbei; listed on the Shenzhen main board in 2026 (001232)
Shenzhen · FutianAutomotive white-body stamping prototypes and full-size show-car models
Shenzhen · Bao'anGrew from 6 CNC machines in 2006 to 100+ today
Shenzhen · LonghuaTuowei Precision
拓维模型130+ CNC centres, SLA printers, vacuum casting and molding on a 10,000 m² site
Shenzhen · Bao'anSI Electronics
新一电子SMT plus chip-on-board (COB) wire bonding under one roof
Dongguan · Dongguan (other town)Himax Electronics
海马士电子OEM build-to-print and ODM pack design with custom BMS
Shenzhen · LonggangSeeed Studio
矽递科技Open Parts Library of 150,000+ in-stock components for turnkey PCBA
Shenzhen · NanshanSamples and small orders with fast quotes
Shenzhen · Bao'anLarge Power
钜大电子Custom packs for medical, robotics and harsh-environment equipment
Dongguan · Dongguan (other town)Started in 2003 making bespoke parts for Raymarine
Shenzhen · LonggangCustom harnesses and signal cables from 10 pieces, samples in 5–15 days
Dongguan · Chang'anMedical-device contract design and manufacturing since 2002
Hong KongEngineering-led harness NPI with APQP and pilot runs
Dongguan · Dongguan (other town)Proprietary zinc multi-slide die casting, invented in 1936
Dongguan · DalangDMG 5-axis and rows of 3-axis CNC in a 5,000 m² Chang'an base
Dongguan · Chang'anListings are compiled from public sources and are not endorsements. Check details with the company. Disclaimer