| 1961 | McConnell Dowell is formed by two entrepreneurial New Zealand engineers Malcolm McConnell and Jim Dowell. |
| 1965 | A massive step forward when the company wins the contract for the Marsden Point off-shore circulatory water cooling system, then the largest submarine pipeline in New Zealand. The design solution was a world first in marine technology. |
| 1968 | New opportunities emerge from New Zealand's natural gas resources. Construction contracts on the Kapuni natural gas pipeline confirm the company's on-shore pipeline capabilities. |
| 1971 | The first overseas office is established, with an independent company in Singapore. |
| 1972 | Specialist skills in sand slurry pipelines are developed with an innovative system to pump iron sands via twin pipelines into ships moored off the rugged west coast of New Zealand. |
| 1972 | Melbourne's Yarra River gas pipeline crossing gives McConnell Dowell a springboard into Australia, and is the first of a number of major pipeline projects in this country. |
| 1974 | Asian operations expand to Hong Kong. The same year, P.T. McConnell Dowell is registered as a joint venture company in Indonesia. |
| 1975 | McConnell Dowell, in JV with Italy's Saipem, commence construction of the Oanui and Maui pipeline from Huntly gas pipeline in the north island of New Zealand. The 300 km x 34 inch diameter pipeline through difficult terrain is a significant milestone in the Company's big inch pipelining. |
| 1977 | The first Middle East office is opened in Dubai, United Arab Emirates. |
| 1978 | Asian operations are boosted with a new company in Malaysia. |
| 1982 | The expansion of New Zealand's Marsden Point Oil Refinery establishes McConnell Dowell as a multi-discipline contractor. |
| 1983 | The 480 km oil pipeline Jackson Blairmore section of the Jackson Moonie pipeline project, Queensland, completed in just over six months, establishes McConnell Dowell as the leading pipeline company in SE Asia. |
| 1985 | Electrix, an electrical installation and maintenance company, is purchased, enhancing McConnell Dowell's total construction, electrical and maintenance capability. |
| 1986 | The 550 km 14 inch diameter gas pipeline, middle spread of the Alice Springs to Darwin completed in six months. |
| 1989 | First project in Thailand - pipeline project for Thailand's oil and gas company PTT. |
| 1992 | The awarding of the Kutubu oil pipeline contract in Papua New Guinea consolidates the company's reputation as an international expert in remote location projects. |
| 1993 | McConnell Dowell (Thailand) Ltd established. |
| 1994 | McConnell Dowell wins a multi-discipline design and construct (D&C) contract with Si Chang Thong Terminal Company for a deep sea oil terminal and tankfarm in Thailand. |
| 1995 | An Institute of Engineers Australia Award for excellence is presented for work on the Blue Mountains Sewerage Transfer Scheme, in which three world records were set for tunnelling. |
| 1996 | The company wins its first contract in the former USSR, with a 227 km oil pipeline from Sangachaly to Shirvanovka on the Russian border. |
| 1996 | The 850 km Mt Isa Queensland Australia gas pipeline completed in record time of less than six months. |
| 1997 | McConnell Dowell Thailand start construction of a US$320 million polyethylene plant for DOW Chemicals and Siam Cement in Mapta Phut Thailand. This multidiscipline project was completed ahead of time and budget despite the Asian financial crisis. |
| 1998 | McConnell Dowell Saudi Arabia starts design and on-site construction for Riyadh Refinery, DCS Upgrade, an electrical and instrumentation EPC project, with control buildings and civil works, for the major oil and gas producer Saudi Aramco. |
| 1999 | McConnell Dowell rises from 104 to 80 in world rankings for revenues earned on international contracts according to the US journal Engineering News Review. |
| 1999 | World-ranking expertise in sand transportation is recognised when the NSW and Queensland governments award a contract for the design, construction and operation for 25 years of a sand bypass system at the mouth of the Tweed River. |
| 2000 | The Company's first project in Taiwan is awarded, involving construction of a power station cooling water outfall. |
| 2000 | One of the largest jetty developments in the southern hemisphere, the Very Large Crude Carrier project in Singapore, involves civil, mechanical and pipelines in a joint venture contract. |
| 2000 | McConnell Dowell purchases the UK-based Stockton Pipelines, a specialist horizontal directional drilling company. |
| 2000 | Trevor Morgan retires as CEO of McConnell Dowell Corporation Ltd. David Robinson is appointed by the Board as the new CEO of McConnell Dowell Corporation Ltd. David Robinson has a civil engineering degree and joined McConnell Dowell in 1978. He has progressed through the Company as Project Manager, Construction Manager and General Manager - Civil. |
| 2001 | McConnell Dowell wins its first project in Vietnam for many years with the BP Exploration for the construction of a Gas Treatment Plant and pipelines at Dinh Co in Southern Vietnam. |
| 2001 | The Company officially opens its UK branch - McConnell Dowell (UK) Limited in Sheffield with two substantial pipeline contracts in tow for British Gas (Transco) in the UK. |
| 2001 | McConnell Dowell wins the Biomass Facility Project in Sydney for EarthPower Technologies to convert food waste into bio-gass and organic fertiliser, a first of its kind in Australia. |
| 2001 | The Company receives the prestigious National Case Earth Award Runners-Up Certificate for the Tweed River Sand Bypassing Project's permanent sand restoration system for its engineering innovation and environmental excellence. |
| 2001 | McConnell Dowell opens its doors in Perth, Western Australia and subsequently secures the Cockburn Unit 1 Power Station civil and building services works at Kwinana for Alstom Power. |
| 2001 | The Company wins its first contract in the African Continent in joint venture with its shareholder, being the US$250 million Mozambique to South African Natural Gas Pipeline for Sasol Ltd. |
| 2002 | Dutco McConnell Dowell Middle East LLC is awarded the Kestral Project Mechanical Installation works for Smelter pot lines by Dubai Aluminium Limited (DUBAL). |
| 2002 | McConnell Dowell's Tweed River Entrance Sand Bypassing Project is announced as the Queensland Project of the Year by the Australian Institute. |
| 2002 | William Porter, Chief Financial Officer and Company Secretary retires after 15 years service. Dale Morrison is appointed as his successor. |
| 2003 | Gas Engineers awards Stockton Pipelines (100% McConnell Dowell subsidiary) outstanding design achievement for completing the longest rock crossing in Europe, a 1500m crossing under the River Severn. |
| 2003 | Gasnet awards McConnell Dowell the EPC 442 km 250 mm dia gas pipeline from Port Hedland to Telfer Gold-Copper mine for Newcrest, Western Australia. |
| 2004 | Hamersley Iron, a subsiduary of Rio Tinto, awards McConnell Dowell, in joint venture, the contract for the Dampier iron ore load-out wharf upgrade in Western Australia |
| 2004 | Centennial Coal award McConnell Dowell the Delta Decline contract at their Mandalong Coal Mine, NSW |
| 2005 | Frank Crowley, Chairman of McConnell Dowell and Executive Director of Aveng in South Africa retires. Frank served 34 years out of his 37-year career with Aveng and was on McConnell Dowell's Board since 1999. Carl Grim, Chief Executive Officer of Aveng, is appointed as McConnell Dowell's new Chairman. |
| 2005 | McConnell Dowell's Victorian Branch is awarded the Case Earth Award for Construction Excellence for the Narre Warren Cranbourne Road Duplication and Grade Separation project which has set new benchmarks in rail bridge construction while delivering a vital upgrade to a busy road and rail interchange. |
| 2005 | McConnell Dowell, in Joint Venture, is awarded the contract by Goro Nickel S.A.S. for the construction of new port facilities as part of the Goro Nickel Project in New Caledonia. The scope of work includes the construction of two new wharves, a new General Cargo wharf and a Bulk Berth, as well as a Barge Ramp and Port Container Yard. |
| 2005 | McConnell Dowell, in Joint Venture, is awarded the contract for the design and construct of the marine facilities for Hin Leong Trading Pty Ltd. This Project is the largest single Marine Terminal to be constructed in Singapore and consists of 12 Jetties, ranging in size from 5000DWT to 320,000DWT, as well as dredging works and a 1km long seawall. |
| 2005 | McConnell Dowell is awarded the construction contract for the 217km Burdekin to Moranbah raw water pipeline in Northern Queensland by SunWater. |
| 2006 | McConnell Dowell is chosen as one of the preferred Alliance Partners for the design and construction of the Southern Regional Water Pipeline Project, South East Queensland. |
| 2006 | McConnell Dowell is awarded the stage one contract for the Common User Facility (CUF) Project by Port Adelaide Maritime Corporation (PAMC), South Australia. This early stage work is critical to delivery of world-class $6bn infrastructure development at Techport Australia. |
| 2006 | McConnell Dowell is awarded a Design & Construction Contract for the Bogong Hydro Power Project by AGL Southern Hydro. Once completed, this will be the largest hydro power project to be constructed in Australia in 25 years. |
| 2006 | McConnell Dowell is awarded the Christchurch Ocean Outfall contract in New Zealand, based on our ability to offer our Client’s complete conventional and trenchless solutions. |
| 2007 | McConnell Dowell is awarded Sydney Desalination Plant Pipeline Construction project. |
| 2007 | McConnell Dowell wins Engineering Excellence Award for Lorne Pier Reconstruction Project. |
| 2007 | McConnell Dowell is awarded Western Sydney Recycling Project. |
| 2007 | McConnell Dowell is awarded Vopak Marine Terminal Jetty 5 project, Jurong Island, Singapore. |
| 2007 | McConnell Dowell is awarded for Seawall & Reclamation Works project, Resorts World at Sentosa. |
| 2008 | McConnell Dowell receives Industry Award for Southern Regional Water Pipeline Alliance, Queensland, Australia. |
| 2008 | McConnell Dowell is awarded Pilbara Iron Ore Infrastructure Project, Western Australia. |
| 2008 | Three McConnell Dowell projects win regional CCF Earth Awards: Bakewell Underpass, SA; Meander Dam, Tas and Pilbara Iron Ore Infrastructure Project, WA. |
| 2008 | The Aveng board announces the appointment of Roger Jardine as Chief Executive Officer, filling a position left vacant by Carl Grim, who retired earlier in the year. |
| 2008 | McConnell Dowell acquires South Australian company, Built Environs. |
| 2008 | Bakewell Underpass wins National Division of CCF Earth Awards. |
| 2008 | McConnell Dowell is awarded Melbourne Cricket Ground (MCG) Concourse redevelopment project, Victoria. |
| 2008 | McConnell Dowell is awarded DBNGP Stage 5B Looping Project, Western Australia. |
| 2008 | McConnell Dowell is awarded Rapid Growth Project 5, Port Hedland, Western Australia |
| 2009 | McConnell Dowell is awarded Adelaide Desalination Plant and Transfer Pipeline Projects, South Australia. |
| 2009 | McConnell Dowell is awarded Downtown Line 2 Contract 916 Project, Singapore. |
| 2009 | McConnell Dowell is awarded Waterfront Promenade at Marina Bay Project, Singapore. |
| 2010 | McConnell Dowell receives 26 safety awards and 6 construction awards |
| 2010 | Built Environs was named the South Australian Commercial Builder of the year |
| 2010 | Built Environs is awarded the Adelaide Oval Western Grandstand Redevelopment (South Australia) |
| 2010 | McConnell Dowell is awarded Rapid Growth Project 6, Port Hedland, Western Australia |
| 2010 | McConnell Dowell secured the Early Works contract for the APLNG gas pipeline |
| 2011 | McConnell Dowell Celebrates its 50 year anniversary 1961 - 2011 |
| 2011 | The Overseas Construction Group achieves 15 million man hours with no fatalities and LTI free |
| 2011 | McConnell Dowell, in joint venture, is awarded marine works for the Hay Point Coal Loadout Facility expansion |
| 2011 | McConnell Dowell is awarded design and construct partner for the Gold Coast Rapid Transit Project (Queensland) |
| 2011 | McConnell Dowell is awarded the Waterview Connection project (Auckland), as part of an Alliance. |
| 2011 | The Ambuklao and Binga hydropower plants are successfully commissioned, Philippines. |
| 2011 | The Barwon Heads Bridge project was awarded the Civil Contractors Federation (CCF) Category 4 National Award |

