Tongtai EMS Co., Limited

What Tongtai EMS Co., Limited does

Tongtai EMS Co., Limited (深圳市通泰智能制造技术开发有限公司) is a privately held, Shenzhen-headquartered Electronic Manufacturing Services (EMS) provider founded in 2001 as TongTai Circuits Ltd. in Hong Kong. The company operates a one-stop model integrating four core service lines: PCB design (up to 68 layers, with high-speed signal design capability to 25Gbps differential), PCB fabrication (rigid, flex, rigid-flex, and aluminum substrate boards, including HDI, blind/buried vias, heavy copper up to 14oz, and impedance control to ±5%), PCB assembly (6 SMT lines, 3 DIP lines, 4 assembly lines with X-ray/AOI/SPI/BGA rework and nitrogen reflow soldering), and component sourcing (full BOM procurement via a global supplier network). Its PCBA factory in Bao'an, Shenzhen covers approximately 6,000 square meters.

Name

Tongtai EMS Co., Limited

Legal name

深圳市通泰智能制造技术开发有限公司

Website

https://tontektechnology.com

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

1–10 employees

Short description

Tongtai EMS is a privately held Shenzhen-based one-stop EMS provider offering PCB design, fabrication, SMT/DIP assembly, and component sourcing for industrial control, 5G, medical, automotive, aerospace, rail, and AI customers across 20+ countries.

Ownership category

akta.pro rank

Product category

Electronic Manufacturing Services (EMS)

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513)

SIC

Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Industrial Electronics Manufacturing Services (EMS) (IMAGAGAA)

akta.pro secondary industries

PCB Assembly (PCBA/EMS) (HDAHAOAI), Process Control & Automation Electronics Manufacturing Services (PLCs, I/O, DCS/SCADA hardware) (IMAGAGAK), Embedded & HMI Electronics Manufacturing (Industrial PCs, HMIs, Panel PCs) (IMAGAGAD)

Keywords

• Electronic manufacturing services
• PCB design services
• PCB assembly
• Component sourcing
• Contract manufacturing

Headquarters

HQ city

Shenzhen

HQ country

China

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. PCB Design Services: Professional PCB design services with over 100 engineers, serving customers in 20+ countries with design capabilities up to 68 layers and support for high-speed signal design up to 25Gbps
2. PCB Manufacturing/Production: PCB production including quick turn, prototype and mass production for rigid, flex, rigid-flex, and aluminum boards with layer counts up to 68L
3. PCB Assembly (SMT/DIP): SMT and DIP assembly services with 6 SMT lines and 3 DIP lines, supporting small to medium volume production with 24-hour quick turnaround capability
4. Component Sourcing/BOM Procurement: Full BOM component procurement with global supplier network, specializing in complete BOM sourcing with commonly stocked components including resistors, capacitors, inductors, connectors, crystal oscillators, and transistors

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Tongtai EMS is a one-stop Electronics Manufacturing Services (EMS) provider integrating PCB design, PCB fabrication, PCB assembly (SMT/DIP), and component sourcing under a single roof. The company serves industrial control, 5G communication, medical, automotive electronics, aerospace, rail transit, and AI sectors with capabilities including up to 68-layer PCB design, 25Gbps high-speed signal design, and 14oz heavy copper PCB production.

Product overview

Tongtai EMS operates as an integrated one-stop Electronic Manufacturing Services platform offering four core products: PCB Design (supporting up to 68 layers with high-speed design capabilities up to 25Gbps), PCB Production/Supply (manufacturing rigid, flex, and rigid-flex boards up to 68 layers with advanced capabilities like HDI and heavy copper), PCB Assembly (SMT/DIP services with precision placement and 6 SMT lines), and Component Sourcing (global procurement with full BOM supply). These products are unified under a comprehensive EMS platform that provides PCB design, engineering development, device procurement, product production testing, and warehousing logistics for industrial control, 5G communication, medical, automotive, aerospace, rail transit, and AI sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• PCB Design Professional PCB design service supporting up to 68 layers and high-speed differential signal design at 25Gbps over 100cm, covering rigid, flex, rigid-flex, and aluminum substrate boards. Used by OEMs in industrial control, medical, automotive, 5G communication, and aerospace sectors.
• PCB Production / Fabrication PCB manufacturing service producing rigid boards up to 68 layers, flexible boards up to 16 layers, rigid-flex boards up to 20 layers, and aluminum substrate boards. Capabilities include HDI, blind/buried vias, heavy copper up to 12oz, BGA, impedance control with ±5% tolerance, and various surface finishes (immersion gold/silver/tin, OSP).
• PCB Assembly (SMT/DIP) PCB assembly service with 6 SMT production lines, 3 DIP lines, and 4 assembly lines equipped with X-ray, AOI, SPI, and BGA rework stations. Supports components from 1005 size to large parts with ±22μm (3σ) placement accuracy, nitrogen reflow soldering with ±1°C accuracy, and 24-hour quick turnaround.
• Component Sourcing / BOM Procurement Global electronic component procurement service providing full BOM sourcing, component warehousing, and partnership-based supply with major distributors and original manufacturers. Covers resistors, capacitors, inductors, magnetic beads, connectors, crystal oscillators, diodes, and transistors, with a sourcing team of 10+ years experience.
• Integrated EMS Platform (One-Stop Service) Integrated one-stop Electronic Manufacturing Services platform bundling PCB design, PCB fabrication, PCB assembly (SMT/DIP), component sourcing, functional testing, and warehousing logistics under a single contract for enterprise customers in industrial control, 5G communication, medical, automotive, aerospace, rail transit, and AI sectors.

Quantifiable outcome

• SMT assembly and welding delivery within 24 hours
• +4 more outcomes

Named customers6 records

Segments7 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Global Component Distributors and AgentssupportingOthersSupplier network of component distributors and original manufacturers worldwide. The sourcing team has established long-term stable cooperative relationships with major component agents and original brands. Suppliers provide resistors, capacitors, inductors, magnetic beads, connectors, crystal oscillators, diodes, and transistors.

Scale indicators11 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Jabil: Global EMS incumbent serving automotive, industrial, healthcare, and aerospace with end-to-end design, manufacturing, and supply chain services. Directly comparable end-market exposure to Tongtai's vertical set, with materially greater scale.
• Foxconn (Hon Hai Precision): Global EMS leader and the dominant player in PCB/electronics assembly worldwide. While not a niche peer, Foxconn's scale, vertical integration, and ability to serve the same industrial control, communications, and automotive customers makes it the ultimate benchmark competitor for any Chinese EMS.
• Flex Ltd: Global EMS provider with strong industrial, automotive, healthcare, and communications verticals. Competes with Tongtai for the same enterprise customers in PCB design and assembly, though at vastly larger scale and broader geographic footprint.
• Sanmina: US-headquartered EMS provider with deep industrial, medical, and aerospace vertical exposure. Comparable to Tongtai in targeting regulated, high-reliability end-markets where certifications and quality systems are differentiators.

Direct peers

• Shennan Circuits: One of China's largest PCB manufacturers with strong capabilities in high-layer-count, high-speed, and substrate-like PCBs serving communications, automotive, and aerospace. Directly comparable to Tongtai's high-complexity PCB design and manufacturing focus, though at significantly larger scale.
• ALLPCB: China-based online PCB fabrication and assembly platform offering quick-turn prototypes and small-batch production. Competes with Tongtai on the same rapid-turnaround, online-direct customer experience for prototype and small-batch orders.
• PCBPie: China-based PCB prototype and assembly services company with quick-turn capabilities and a global customer base. Closely comparable to Tongtai in the small-medium volume, quick-turn PCB assembly segment.
• Shenzhen Kinwong Electronic: Major Chinese PCB and flexible circuit manufacturer serving automotive, communications, and consumer electronics. Comparable to Tongtai in its multi-layer PCB and rigid-flex offering, with stronger scale in automotive electronics.
• RayMing PCB: China-based PCB and PCBA services company providing PCB fabrication, assembly, and component sourcing. Directly comparable one-stop service model and customer target segments to Tongtai's offering.

Regional players

• WUS Printed Circuit: Taiwan-based PCB manufacturer with strong presence in industrial, automotive, and communications end-markets. Comparable to Tongtai in high-layer-count and HDI capabilities, though serving primarily larger-volume OEM customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/tongtaiems

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tongtai EMS Co., Limited