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About Seyon

Seyon Engineering is a growing organisation with services that complement our clients in all their engineering requirements. Located in Kings Langley in NSW, Seyon offers clients a complete range of CAD services on a variety of software platforms.

Seyon Pty Ltd has been established with an aim to provide quality backoffice engineering design and drafting services to its customers across Australia. We assist customers to optimise their project delivery time and enable them to remain competitive in the market.

Operating since 2013 Seyon has grown both in numbers and expertise in providing our customers with professional backoffice engineering services. We presently have a qualified team of 30 professional engineers who are experienced across different sectors. Our team tailors our services to your individual requirement.

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Why Seyon? 

Our vision is to be a customer-preferred engineering service provider, delivering value-added services toward Australian quality standards. We plug into your business’ engineering team without disruption and deliver cost-efficient design with exceptional customer service and complete customisation to help your operational growth.

With decades of experience, we have developed an eye for detail, understanding Australian standards with experience in manufacturing methodologies that are reflected in our design and drafting.

We exist to

Provide efficient and value-driven engineering design.

Our Values

We do what we say.

Driven to provide value.

Always on - always available.

Ready for what’s next.

We are

Growth partners


Seyon Values

Our understanding of Australian and other international standards is a differentiator in getting things right

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More than 90% of our customers are happy. Our commitment to timelines, easy communication and file security deliver value.



We respect Data Protection and Practice in every aspect of our Services



Our professional approach in handling projects from start to finish driven by our document management system is a top preference by our customers.


Australian Standards

Our understanding of the Australian and other international standards has been a differentiator in getting it right


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Our aim is to make you feel that we are sitting next to you to get the input and deliver the output.



We add value to whatever we do, be it small or big.



Assistance provided with design and modelling from concept to detail drawings. Services range from basic process flow diagrams to modelling large plants and structures.

​Our services include :

  • PFDs, P&IDs, Smart P&IDs.

  • 3D modelling & 2D drafting.

  • Product Development.

  • Design Analysis & Validations.

  • Skids Design & Detailing.

  • Plant Layouts / Arrangements.

  • Piping Isometric Drawings.


Working with customers across Australia in the following sectors :

  • Mineral Processing.

  • Water Treatment.

  • Material Handling.

  • Food Processing.

  • Infrastructure.

  • Heavy Machineries.

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