The Company

LEO Industries provides full integration of electronic products from small to mid-range to large volume manufacturing capabilities. With unique Crade2Cradle design ethos, we ensure our products and our partners behave ethically towards our environment.

We have over 30 years experience in turnkey PCB Assembly Services. Our electronic assembly services range from Prototype assembly, PCB assembly to complete box build products.

We aim to provide our clients with quality services and products, meeting schedules, costs and environment safety.

In keeping up with the latest trend in Green Energy products, Leo offers a diverse range of products based on our core competency in LED lighting, power management and related energy products.

The Management

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Dave Chang T. Y.

With a strong background in the electronics industries since 1977, Dave has accumulated experience spanning from Sales to R&D, and into Manufacturing. His 30 years experiences includes:

  • Life cycle and manufacturing cost analysis of electronic products
  • Sustainment of electronic systems (reliability and obsolescence analysis)
  • Methodology and implementation of technology tradeoff analysis for electronics
  • Design-to-cost, manufacturability and environment
As the CEO of the LEO Group, Dave has grown the company from a small enterprise to a global supplier.

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John Grzan

John's background in cutting end energy solutions married with his experience in Asia brings to Leo the capability to design, produce and service a wide variety of portable energy solutions for a wide market scope. His 15 years experiences includes:

  • Development of the high rate lithium polymer battery in 1996
  • Battery solutions for OEM, military and e-mobility systems
  • Development of lithium balancing charge systems for RC electronics
  • First to market lithium battery systems for World Solar Challenge in 1996 along with championships
  • Development of extreme high cycle life (>10,000) battery solutions
  • Consultant to international MNC's on battery system development
  • Young Australian of the Year award for high efficiency wind & solar systems 2000
  • Development of REVOLECTRIX e-commerce platform for radio control hobby
As the Managing Director at Leo, John's experience and commitment to customer satisfaction brings Leo to the international arena for the development and supply of portable energy solutions.

Why Choose LEO?


  • Over 30 years of Experience in Product Design and Manufacturing
    - Crade2Cradle Product Development
    - Product Independent Manufacturing
    - Singapore Location for Strategic Shipments
    - Western Ownership you can Depend on
    - Eastern Manufacturing Locations for Cost Control
    - Staff who Communicate Efficiently in a Variety of Languages
    - Batam Manufacturing Location with Tax Free Shipments
    - We Provide Credit Terms

  • We Trust our Designs and Products
    - Warrantees you can Rely on
    - In-house Design & Secured IP
    - Singapore Economic Development Board Approvals
    - Partnership Potentials with Singapore Government Funding
    - Environmental Awareness via Recycling Programs
    - Charitable Donations for those Less Privileged than Us

LEO Commitment to Quality

- Total Quality Management
- ISO 9001:2008 Accredited
- Factory Inspected & Certified by UL & TUV agencies
Image descriptionRegistration No: QAIC/SG/137-A

Image description Environmentally Friendly Products & Services

LEO is taking an active role in protecting the environment through its compliance with Restriction of Hazardous Substances (RoHS) legislation; adhering to the restriction on the use of Lead and other hazardous substances.