Quanta Services Australia Pty Ltd (QSA), a wholly owned subsidiary of Quanta Services, provides specialty infrastructure services in Australia. Mirroring the structure in the US, QSA has six standalone operating companies through which work is delivered.

In the oil and gas space this includes EPC contractor Nacap Australia Pty Ltd which services the LNG, oil, gas and mining sectors; HDD contractor Coe Drilling Pty Ltd; Mears Integrity Solutions, who provides infrastructure integrity services for the pipeline industry and Enscope specializing in the engineering, procurement, construction and commissioning of service facilities.

In the power sector Consolidated Power Projects (CPP) Pty Ltd and NJ Construction Pty Ltd provide end to end solutions in design, construction and maintenance services for transmission and distribution utilities. In the renewables space, CPP and NJ provide all electrical balance of plant for wind and solar projects.

These companies will compete for work in their own fields of expertise. When broader project opportunities arise the standalone operating units will combine their offering to provide a bundled solution as part of an integrated QSA team. This flexible approach provides clients with powerful choices of delivery models and construction driven solutions that are almost entirely self-performed by experienced professionals.

Read more on our Operating Companies:


Responding to the renewables surge in Australia, QSA recently launched their Quanta Solar Australia brand to provide a fully wrapped EPC service offering for solar developers in Australia. Harnessing experience and lessons learnt through our sister companies who’ve developed solar farms in the United States, coupled with local experience and delivery resources in Australia, Quanta Solar Australia provides a fully integrated in-house delivery model. For more information visit http://www.quantasolar.com.au/


599 Doncaster Road, Doncaster
Victoria, Australia 3108
Tel: +613 8848 1888

22 Cordelia St, SWI, Level 2
South Brisbane, Australia 4101
+617 3029 1100

QSA is managed by strong leadership who have had many years constructing and delivering work in Australia and Asia.

Mark Bumpstead - President

Mark comes with over 35 years’ experience in the pipeline construction industry and has a strong track record as a Senior Manager with construction client and contractor organisations. His experience includes major projects and pipeline operations both within Australia and overseas.

Mark was President of Nacap from 2002 – 2015.

Donna McDowall - Vice President – Corporate Development and Strategy

Donna has a diverse background spanning 20 years in the corporate and consultancy sector throughout Australia, United Kingdom and Malaysia.

A highly-skilled communicator, she holds a degree in Public Relations, Masters of Business Administration (MBA) and is a GAICD with the Australian Institute of Company Directors.

Her experience and expertise includes strategy, management, M&A, marketing communications, and community engagement on large scale infrastructure projects.

Calvin Gordon - Chief Financial Officer

Calvin holds a Bachelor of Business with a major in Accounting; he is a member of the Certified Practicing Accountants (CPA) and holds a Master of Business Administration (MBA). He has 20 years extensive experience in construction and asset maintenance/management companies operating in Australia, New Zealand, Pacific, South East Asia and the Middle East. His experience and expertise include project finance, IT, international taxation, treasury, insurance, project management/cost control systems and corporate finance.

Calvin is also CFO of Nacap Australia.

Robert Bateman - Vice President – Commercial and General Counsel

Robert is a senior commercial lawyer and commercial manager with extensive experience working in leading construction and energy organisations, operating in Australia, UK, USA, EAME and SE Asia. Robert has also worked for tier one legal firms in Australia and the UK in the areas of construction, engineering and major projects.

His expertise relates to the drafting and negotiation of EPC, construction, consultancy, joint venture and alliance-style agreements, the resolution of complex construction disputes and the management of insurance programs and claims.

Previously Rob was Head of Commercial and Legal at Nacap Australia.

QSA and its subsidiaries have offices around Australia.

Quanta Services Australia - Victoria
599 Doncaster Road, PO Box 103 Doncaster, Victoria, Australia 3108
+613 8848 1888

Quanta Services Australia - Queensland
SW1, Level 2, 22 Cordelia Street PO Box 3245, South Brisbane, QLD, 4101
+617 3029 1100

Nacap – Victoria
601 Doncaster Rd PO Box 103, Doncaster, Victoria, Australia 3108
+613 8848 1888

Nacap - Queensland
SW1, Level 2, 22 Cordelia Street PO Box 3245, South Brisbane, QLD, 4101
+617 3328 8800

Nacap - Western Australia
7150 Oxford Close West Leederville WA 6007
+613 8848 1888

Consolidated Power Projects - South Australia
205 Halifax St, Adelaide, South Australia 5000
+618 8291 7800

Consolidated Power Projects - New South Wales
Block S, Unit 3 Regents Park Estate
391 Park Road, Regents Park, New South Wales 2143
+612 9645 9100

Consolidated Power Projects - Queensland
SW1, Level 2, 22 Cordelia Street PO Box 3245, South Brisbane, QLD, 4101
+617 3328 8830

Consolidated Power Projects - Victoria
Level 6, 141 Flinders Lane, Melbourne, Victoria 3000
+61 39289 9800

Coe Drilling - Queensland
SW1, Level 2, 22 Cordelia Street PO Box 3245, South Brisbane, QLD, 4101
+617 3029 1300

Enscope - Queensland
2/15 Heather Street
Wilston, QL 4051
+618 6229 6500

Enscope - Western Australia
7/50 Oxford Close, West Leederville
Western Australia 6007
+618 6229 6500

Mears Integrity - Queensland
SW1, Level 2, 22 Cordelia Street PO Box 3245, South Brisbane, QLD, 4101
+617 3029 1200

NJ Construction - New South Wales
Head Office: 42 Hincksman Street, Queanbeyan, NSW 2620
Depots: Kayes Lane, Alstonville & Denham Street, Port Macquarie
+612 6232 9400