The Bothar Group
of Companies

Bothar Group of Companies ("Group") is an international contractor with over 25 years of cutting edge experience, and comprises of three separate organisations; Bothar Boring, Coleman Microtunnelling and Bothar International.

Within the tunnelling contracting industry, the Group has an enviable track record, a minimal environmental footprint and a highly skilled and diverse capability range. Offerings include shaft construction, microtunnelling, TBM, Auger Boring, HDD and Bothar Built tunnelling machines.

The Group has offices in Australia, New Zealand, Qatar, Dubai, Abu Dhabi, Kuwait, South Africa, UK and Ireland and Ghana, with the capabilities of expansion into other geographical areas.

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Operational Areas

` Operational Areas


  • P007 C1 breaks another tunnelling record in Qatar

    Microtunnel achieved 838m of 3000mm id in a single drive....

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  • Company Rebrand

    Bothar Group of Companies Bothar Group of Companies went through a complete rebrand to establish a unique brand identity for each of the three companies....

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  • Production Records in Doha

    Over 22km of microtunnellig installed ranging from 800mm to 3000mm diameter, up to 575m drive length in deep shafts....

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  • Now Beneath Ghana

    Ghana Power Plant Coleman Microtunnelling was awarded the installation of 2.65km of 2000mm diameter seawater intake and outtake including radial drives and marine recovery for the 350 MW Kpone In...

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  • Quality Certification Achieved

    ISO9001 in the Middle East and Australia All Bothar Group of Companies’ operations are now independently certified to international quality standards....

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  • Innovation by Bothar Built

    Months of planning and preparation paid off when a Bothar Built TBM with a specially modified cutting head completed a challenging inner city live rail crossing in wet sand in 32 hours. Two crews...

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  • Bauma 2016

    In a few weeks’ time the world’s largest exhibition of construction equipment, the Bauma 2016, will start in Munich on April 11 and run through until April 18.  The Bothar Group of Compa...

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  • Bothar secure fourth major project in Qatar

    Bothar have been awarded the construction of the microtunnelling works for Petroserv Limited in Doha, Qatar. The Muaither project scope include the construction of approximately 8,000m of various...

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  • Large Bothar Built FSAS machine completes first project

    The second of our custom built Fully Steerable Auger System (FSAS) machines the larger 1900mm OD unit has successfully completed its first project for Brisbane City Council. The FSAS was well sui...

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  • Two more staff achieve Cert III

    Congratulations to our two staff members that have just attained CERT III qualifications in Trenchless technology. The staff members now have a nationally recognised means of demonstrating their ...

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  • Bothar launch in South Africa

    Bothar are launching into South Africa and will commence operations in July 14. The South African operations will be based out of Johannesburg and to coincide with the launch they will be exhibit...

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