Meet The 2T Team

The following are the 2TSustainAbility Associate Consultants, the majority of which are based in Western Australia.

2TSustainAbility has access to a global network of professional consultants and specialists who can assist your business by delivering value add solutions and support.

To meet some of 2TSustainAbility's consultants in other regions CLICK HERE

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Mark Stirling

Managing Director / Executive Consultant

A successful risk, health, safety and environment professional with Executive and Senior Management experience across multiple high risk industries and international work environments.


David Thick

Associate – Senior          Consultant

A successful safety, health and environment professional with Senior Management and Consulting experience across various industries, from mining, civil and construction, logistics and aviation as well as international consulting experience.


Alan Vasey

Associate – Senior Consultant

A highly qualified and experienced risk, safety, health and environment manager with domestic and international experience at senior and executive management level across a large range of industries including resources, manufacturing, exploration, processing, projects and renewables.

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Paul Brider

Associate - Senior Consultant

A highly experienced business systems professional, specialising in risk, safety and health, critical operational business processes, auditing and contractor management. A qualified mechanical engineer, NOSA auditor, project management and safety and health specialist with over 30 years experience across a wide range of industries types both domestic and international.

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Sundeep Nijran (Sunny)

Associate - Senior Consultant

Project Controls Leader with verifiable track record, proven project planning, Forensic Planning and change management skills. Vast experience having worked on complex scopes of work, ranging from 2 billion Mining projects to 20 million per annum, Road & Rail Improvement programmes and can bring to your organisation; consistency, simple insight and an attention to detail. Extensive experience in Claim and contractual management having dealt with disputes and claim verification. Expert in Earned Value Management & Reporting


David Allen

Associate – Senior        Consultant

A successful professional Safety, Integrity and Risk Reliability manager and consultant with over 25 years’ Risk Management experience (Enterprise, Operational and Technical) across LNG, oil and gas, chemical, mining and utilities industries sectors across the UK, Australia, Middle East, Asia and Europe.


Stacey Leach

Business Support

An extensive career in pharmaceutical and health industry with experience in retail management, administration, stock control and training, with a passion for excellence in customer service.