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    Who we are

    The first-choice ground engineering and asset preservation partner

    Our history

    Industry Leaders Since 1989

    Mainnmark has led the industry for re-levelling, ground improvement and void-filling solutions, developing and delivering the world’s most advanced and accurate solutions.

    As a global ground engineering and asset preservation company, we draw on over three decades of experience and knowledge in leading, developing and delivering the most advanced and accurate ground improvement, re-levelling and void-filling solutions across residential, commercial, infrastructure and mining sectors.

    With over 82,000 completed projects across Australia, New Zealand, Japan, Thailand and the United Kingdom, we have built a global reputation for delivering innovative solutions to some of the most iconic projects in the world, earning international recognition as an award-winning ground engineering organisation.

    Mainmark is a privately owned company headquartered in Sydney, Australia. We have successfully grown our global presence over the last 20 years and have 18 office locations worldwide.

    Leadership team

    A dedicated team of professionals

    Expertise and knowledge spanning decades

    Our people are the key to our success.

    Mainmark’s team of passionate, experienced, and knowledgeable industry experts ensures we remain Australia’s leading ground engineering and asset preservation company.

    With global reach and local expertise, our team collaborates to deliver quality outcomes for our partners and clients, making us a trusted partner for Tier 1 clients and homeowners alike.

     

    Join our team

    The talent we hire today will build the future of Mainmark tomorrow

    We are always on the lookout for new additions to the Mainmark family.

    With offices across the globe, we have opportunities to work in both Sydney as well as the regions and love to see our team move around the group as they develop.

    If you’re interested in a fulfilling career and joining the Mainmark team we would love to hear from you.

     

    HSE&Q Management System

    Effectively manage risks across all operations

    Our robust Health, Safety, Environment, and Quality (HSE&Q) Management System ensures we effectively manage risks across all operations.

    The Integrated system ensures that we provide high-quality products and services while prioritising Safety and environmental management. We are committed to satisfying customers, maintaining a safe work environment, minimising environmental impacts, and managing risks.

     

    Award winning

    Global leader in ground engineering

    Mainmark is an international award-winning ground engineering organisation that has successfully delivered projects in Australia, New Zealand, Japan, Thailand and the United Kingdom.

    Locations

    Global reach with local expertise

    Get in touch with one of our global offices

    Our business proudly operates across four countries, operating seamlessly to deliver exceptional services to our clients.

    With a dedicated team of 253 staff members, we have strategically established 18 office locations that serve as hubs of innovation and collaboration.

    Need help?

    Need help with a project? Contact us today.

    Mainmark

    © 2026 The Mainmark group of companies. ‘Mainmark®’, ‘Terefil®’, ‘Terefirm®’ and ‘Teretek®’ are trademarks of the Mainmark group of companies.

    Mainmark Ground Engineering Pty Ltd
    ABN: 51 606 182 503

    ISO 9001
    ISO 14001
    ISO 45001

    Solutions

    Ground Improvement

    Subsidence Repair

    Re-Levelling

    Void Filling

    Slab Lifting

    Crack Wall Repair

    Sinking Floors

    Sinking Foundation Repair

    Underpinning Repairs

    Locations

    Adelaide

    Brisbane

    Canberra

    Hobart

    Melbourne

    New South Wales

    Perth

    Queensland

    South Australia

    Sydney

    Tasmania

    Townsville

    Victoria

    Western Australia

    Sectors

    Commercial

    Residential

    Infrastructure

    Mining

    Technologies

    Teretek®

    Terefil®

    JOG

    About Us

    Our team

    Careers

    Media & Press

    News

    Awards

    Contact

    Locations
    Mainmark Sydney

    169 Sailors Bay Rd, Northbridge NSW 2063

     

    Mainmark Melbourne

    Unit 8, 33 Rosalie Street, Springvale VIC 3171

    Mainmark South Australia

    19 Heath St, Lonsdale SA 5160

    Mainmark Queensland

    20 Computer Road, Yatala QLD 4207

    Mainmark Perth

    115 Excellence Dr, Wangara WA 6065

    Mainmark Tasmania

     4/11 McRorie Court Cambridge TAS 7170

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