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Circuitwise electronics manufacturer


Circuitwise is a contract electronics manufacturer specialising in complex electronics devices. The products we manufacture are typically used in industries where safety and reliability is critical, such as mining, aerospace and the MedTech industry

Formerly Tresmine Pty Ltd, the company was established in 1987 by Roz and Greg Ross and renamed in 2014. 


Circuitwise is now run by siblings Serena Ross and Sean Ross, who took over day-to-day operational management from their parents in 2019.


The culture of the company can be characterized by its obsessive customer service ethic, with flexibility, responsiveness and on-time delivery being key drivers in all interactions with customers.


See Our Approach to Business for more information.

Serena Ross General Manager at Circuitwise Electronics Manufacturing

Serena Ross

Chief Executive Officer

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Circuitwise Electronics Manufacturing is 100% Australian owned. All profits are retained in Australia. Certified by Australian

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