Grandtop was established in 2005, specializing in PCB design, high quality PCBA OEM, electronic product turnkey service and solutions. Our headquarter and factory are located in Bao’an District Shenzhen City, with more than 150 employees and over 6000 m2 shop floor. Globally, we have offices and warehouses in Hongkong, London, Hungary,Spain and USA that ensure to provide customers with nearby and agile services.

About our R&D team, which has experienced hardware, software and structural engineers, can solve customers' trouble and shortcomings in circuit design, PCB layout, software development and product structure design, and can undertake the upgrading and revision of customers' products, material replacement, part or full design, so as to ensure the rapid and successful development of customers' new products.

About our manufacturing team, has many supervisors and engineers with experience in manufacturing, quality management and engineering in the world's top 500 EMS factories, and uses ERP and MES management systems to provide customers with high-quality PCBA manufacturing (SMT, DIP, MI, AI), PCBA conformal coating, PCBA testing, finished product assembly, global material procurement and peripheral supporting one-stop services. The company has several SMT lines, finished product assembly lines and testing lines, equipped with new imported Juki and Samsung SMT machines, automatic solder paste printing machine, ten-zone reflow oven, wave soldering, selective coating machine, etc, high-end equipments. And equipped with AOI, X-RAY, SPI, ICT, CNC board dividing machine, BGA rework station and other equipment. Fully air-conditioned dust-free workshop, lead-free production process, constant temperature and humidity electronic warehouse, professional battery warehouse, the company has passed ISO9001, ISO14001,IATF16949 and ISO13485 certifications.

In terms of testing guarantee, we have established own laboratory and aging testing room, which can verify the products in all stages of R&D, production and manufacturing, such as high and low temperature testing , high humidity testing, salt spray, vibration, insertion and withdrawal testing, aging and other tests to ensure product quality in all aspects.

Our main customers are mainly in the industry of industrial control, medical, grain equipment, sorting machine,laser module, communication, PLC module, sensor module, traffic control, automotive, smart home, self-service kiosk, POS machine, etc. We cooperate with worldwide clients and have long-term cooperated customers in USA, Canada, UK, Germany, Switzerland, Australia etc. which can be your reference.

Our advantages

PCB Design

Professional R & D team, can provide service of circuit design, PCB Layout, software development and product structure design all-round solutions
Fast prototype, help customers to quickly market their products and seize the opportunity
Rigorous process, design specifications, design parameters not only consider R&D prototyping, but also fully consider the characteristics of mass production to ensure a competitive cost of mass production

Superior Quality

ISO9001 certified company, We have a very robust quality system and professional quality team；
Reliable Supply Chain，We have established long-term strategic cooperation with the top electronic components manufacturers all over the world, such as Xilinx, TI, Avnet, Future and etc；
High manufacturing capability, our PCB can reach a max layers of 64, minimum placement component size can meet 0201 and minimum placement spacing of BGA can meet 0.3mm；
We have complete inspection and testing for PCBA, including SPI、AOI、ICT、FCT、X-RAY、ROHS and aging.   

Fast Turnaround

We offer fast and opened BOM quotation to customers；
10 years of cooperation experience with European and North American clients, quickly and professionally respond customer requirements.

One-stop service

Providing professional PCB design, R&D prototyping, PCBA mass production, component procurement, electronic product assembly, testing, PCBA conformal coating and supporting services for electronic and electrical products peripheral products such as wire harnesses, plastic injection, sheet metal, etc..

Our factory is located in Shenzhen, we have warehouses in Hong Kong, Europe and North America, we can stock in the corresponding warehouses according to customers' needs and provide Kanban service.

Turnkey Service

We professionally offer the service of PCB Assembly (SMT, DIP, MI, AI), component procurement, product final assembly, testing, PCBA conformal coating, electronic product design and peripheral products support, etc；

Our factory is located in Shenzhen, and besides we have warehouses in Hongkong, Europe and North America. We can prepare boards at the warehouse which is close to the customer and afford Kanban service according to customer requirements.

IP Protection

Strong believe in IP protection with proven records

Your satisfaction is our ambitions，and your believing in us is our goal！