One of the strongest companies in Australia is BHD Group. The BHP Group formerly known as BHP Billiton is one of the largest multinational mining, metals, and natural gas public companies with headquarters in Melbourne, Victoria, Australia.

On 16 July 1885, the Broken Hill Company was founded in the mining town of Silverton, New South Wales. Even as an established company, the BHP Group retains its position as the largest company in Australia by far. In 2014, BHP Group's market value of $151.4 billion peaked at an attractive rate given its current asset value. BHP officially became the world's largest mining company by market capitalization and Melbourne's third largest by revenue in 2017.

The main activity of BHP Group is engaged in the exploration, development, production, and processing of iron ore, metallurgical coal, and copper. The company operates through four main segments: oil, copper, iron ore, and coal. The oil segment is the exploration, development, and production of oil and gas. The copper segment refers to the mining of copper, silver, lead, zinc, molybdenum, uranium, and gold. The iron ore segment includes iron ore mining while the coal segment focuses on metallurgical coal and energy coal. BHP has principal mining operations in countries such as Australia, North America, and South America, and oil and gas operations in the US, the United Kingdom, Trinidad and Tobago, and Algeria.

Founded: 1885

Headquarters: Melbourne, Victoria, Australia

Website: https://www.bhp.com

Commonwealth Bank is an Australian multinational bank with businesses spanning the United States, New Zealand, Asia, and the United Kingdom.

The former headquarters of Commonwealth Bank was the Commonwealth Commercial Bank Building on the corner of Pitt Street. Refurbished in 2012 for commercial and retail use, the headquarters was moved to Tower 1, 201 Sussex Street in Darling Harbour, to the west of Sydney's city center.

Former constituent parts of the Commonwealth Bank include the Commonwealth Commercial Bank of Australia, the Commonwealth Development Bank, and the Commonwealth Savings Bank of Australia. Founded in 1911 by the Australian Government and fully privatized in 1996. During the 1970s, the bank diversified its business into areas such as insurance and travel. In addition, it established a financial company called CBFC in 1974 and is also more involved in foreign currency trading and international banking. Commonwealth Bank is today one of Australia's four largest banks, along with National Australia Bank (NAB), Westpac, and ANZ. On 12 September 1991, the bank was listed on the Australian Stock Exchange.

Commonwealth Bank offers a wide range of financial services including retail banking, institutional businesses, fund management, insurance, investment, superannuation, and brokerage services. It is the largest Australian listed company on the Australian Stock Exchange in August 2015, with well-known brands including Bankwest, ASB Bank (New Zealand), Commonwealth Securities (CommSec), Colonial First State Investments, and Commonwealth Insurance.

Founded: 1911
Headquarters: Darling Park Tower 1, 201 Sussex Street, Sydney, New South Wales, Australia
Website: https://www.commbank.com.au/

CSL Limited is also considered one of the largest companies in Australia. It is a worldwide specialty biotechnology firm based in Australia that conducts research, develops, produces, and promotes goods for the diagnosis, treatment, and avoidance of serious human medical illnesses. It offers the product categories such as plasma derivatives, vaccinations, antivenoms, and cell culture reagents. These items are employed in several medical and genetic research and industry applications.

The company was established in 1916 as Commonwealth Serum Laboratories, and up until it was privatized in 1994, the Australian federal government controlled 100 percent of it. Since its founding, with a passionate global presence, CSL has constantly innovated from developing life-saving and life-improving treatments to developing vaccines that protect human beings.

CSL concentrates on and exhibits global leadership in three different fields: nephrology and iron deficiency, uncommon and dangerous illnesses, and influenza vaccinations. In terms of rare and serious diseases, CSL Behring develops novel therapies for the treatment of immunodeficiency, bleeding disorders, hereditary angioedema, Alpha 1 antitrypsin deficiency, and neurological condition, which are utilized all over the world. In addition, through its influenza vaccine business, CSL Seqirus is a major contributor to influenza prevention and control, as well as a partner in global pandemic preparedness. With expertise in iron deficiency and anemia caused by heart failure, body disease, digestive disease, and inflammatory bowel disease, CSL Vifor also helps patients affected by these conditions lead better, healthier lives.

Founded: 1916
Headquarters: Parkville, Melbourne, Victoria, Australia

Website: https://www.csl.com/

National Australia Bank is one of the four largest financial institutions in Australia in terms of market capitalization, earnings, and clients.

National Australia Bank was originally established as National Commercial Banking Corporation of Australia Limited in 1982 from the merger of National Australasia Bank and Sydney Commercial Banking Company. It was later renamed National Australia Bank.

In 2008, National Australia Bank began to invest $33.5 million in a corporate responsibility initiative with the goal of devoting 1% of pre-tax cash income to this sector. In 2009, NAB was made the largest workplace by Fairtrade in Australia through the purchase of tea, coffee, and hot chocolate for their offices and retail branches. National Australia Bank became one of Australia's largest carbon-neutral companies in September 2010 and became one of the 500 global companies in the 2010 Carbon Disclosure Leadership Index.

In 2019, NAB was ranked as the 21st largest bank in the world by market capitalization and 52nd in the world by total assets. As of January 2019, National Australia Bank operated 3,500 Bank Post locations including over 7,000 ATMs across countries such as Australia, New Zealand, and Asia with over 9 million customers respectively.

Founded: 1 October 1981
Headquarters: 395 Bourke Street, Melbourne, Australia

Website: https://www.nab.com.au/

The Westpac Banking Group, sometimes known as Westpac, is a global Australian banking and financial services firm with its headquarters in Sydney, New South Wales. It is also considered one of Australia's earliest and oldest banking organizations of the country's four main banks. Its name is derived from the two words "West" and "Pacific".

Westpac Banking was founded very early in 1817 as the Bank of New South Wales. Then, in 1981, it acquired the Commercial Bank of Australia and was renamed Westpac Banking Corporation in 1982.

Consumer Banking, Commercial, and Business Banking, BT Financial Group, Westpac Institutional Bank, and Westpac New Zealand are the five primary divisions that make up Westpac's organizational structure. More than 13 million clients are served by these five divisions. Specifically, Consumer Bank is in charge of marketing to and offering services to 9 million Australian consumer clients, supporting them with their everyday banking requirements. While Corporate Bank is in charge of operations and financing for property and equipment under the names Westpac, St. George Bank, BankSA, and Bank of Melbourne. It is also in charge of sales and services to Australian SME, commercial, and agriculture clients.

According to statistics, Westpac has 14 million customers worldwide with about 40,000 employees as of 2021.

Founded: 4th May 1982 (as Westpac Banking Corporation)
Headquarters: Westpac Place Sydney, New South Wales, Australia

Website: https://www.westpac.com.au/

A global Australian bank and provider of financial services, Australia and New Zealand Banking Group Limited (ANZ) is based in Melbourne, Victoria. It ranks fourth in terms of market capitalization and is Australia's second-largest bank by assets.

ANZ is one of Australia's four major banks, along with Commonwealth Bank, NAB, and Westpac, established in 1970 when the Bank of Australia and New Zealand (ANZ) merged with the Bank of England, Scotland & Australia (ES&A). It was considered the largest bank merger in Australian history at the time.

ANZ's business mainly takes place in the Australian market, with a series of commercial and retail banks dominating. ANZ is also considered the largest bank in New Zealand where it was known as ANZ National Bank in 2003 and later changed to ANZ Bank New Zealand in 2012. From 2003 to 2012, ANZ operated two brands in New Zealand, ANZ and the National Bank of New Zealand. However, the National Bank brand was discontinued in 2012, some branches closed and others converted into ANZ branches.

In addition to operating across Australia and New Zealand, ANZ operates in more than 30 different countries worldwide. ANZ together with its subsidiaries has a workforce of approximately 51,000 employees and serves over 9 million customers around the world.

Founded: 1970
Headquarters: 833 Collins Street, Melbourne, Victoria, Australia

Website: https://www.anz.com.au/personal/

Macquarie Group Limited is an Australian global financial services group headquartered at 50 Martin Place Sydney, New South Wales, Australia. Macquarie was incorporated on 10 December 1969 as Hill Samuel Australia Limited, a subsidiary of Hill Samuel & Co. Limited is owned by the United Kingdom. Today, it has more than 17,000 employees in 33 markets around the world. Macquarie is one of the world's largest infrastructure asset managers and Australia's leading merger and acquisition advisor with over $730 billion in assets.

With the development of offices in Seoul and Tokyo, Macquarie continued its growth in Asia in the early 2000s. The decade also saw Macquarie's infrastructure business expand internationally, with funds for infrastructure investments being launched in Korea, China, Europe, Russia, India, and the Middle East. In the late 2000s, Macquarie acquired a number of large companies, many of which were located in the United States, including an energy trading and marketing firm and a physical natural gas business. The Macquarie Corporation is North America's second-largest physical gas trader as of 2018.

Macquarie's businesses are organized into two main operating groups: Macquarie Asset Management (MAM) and Banking and Financial Services (BFS). In particular, MAM is one of the top 50 global asset management firms, handling more than $735.5 billion, and is the largest infrastructure asset management company in the world. BFS, on the other hand, includes Macquarie's retail banking activities and offers around 1.7 million consumers personal banking, wealth management, and business banking products and services.

Founded: 1969
Headquarters: 50 Martin Place, Sydney, New South Wales, Australia

Website: https://www.mq.edu.au/

Fortescue Metals Group Limited, commonly known simply as Fortescue, is one of Australia's largest iron ore companies. In 2017, the company is considered the fourth largest producer of iron ore in the world holding more than 87,000 square kilometers in the Pilbara region of Western Australia.

The company owns two main mining operations located in the Pilbara region, Chichester Hub and Solomon Hub. In particular, located in the heart of Pilbara, the Chichester Hub mining site is made up of Fortescue's premier minefield, Cloudbreak, and its second, Christmas Creek. Since coming into operation, Chichester Hub has produced a total of 90 million tons of iron ore per year plus an additional 5 tons from its joint venture with BC Iron.

The Solomon Center is Fortescue's next major project after the Chichester Hub, with possession of nearly double the mining resources of the Chichester Center. At the Solomon Center, Fortescue's exploration team has localized more than 2.86 billion tons of resources and identified exploratory opportunities with potential reserves of up to 5 billion tons. The 20 million tonnes per year Firetail mine in Solomon was formally inaugurated by Fortescue in May 2013. Besides, the following project in the central Solomon Islands, the Queens Valley mine, has been cleared for development in 2019 at an estimated cost of AU$ 417 million. The mine, which is 15 kilometers west of the Kings Valley mine, is scheduled to begin operations in 2022 and will have a huge mining capacity.

Founded: 2003
Headquarters: Perth, Western Australia

Website: https://www.fmgl.com.au/

One of Australia's top oil and gas exploration and production businesses is Woodside Energy Group Ltd. It is a publicly traded corporation listed on the Australian Stock Exchange with its corporate headquarters in Perth, Western Australia. Woodside was listed as the 1328th largest public corporation in the world in the 2020 Forbes Global 2000.

Woodside was founded on 26 July 1954 as the small town of Woodside, Victoria by accountant Rees Withers with the primary purpose of focusing on exploration activities into the Gippsland Basin of Victoria. In August 2021, Woodside and BHP jointly signed an agreement to merge the two companies oil and gas assets. It was not until 2022 that the merger with oil and gas assets BHP was completed and the combined entity listed on the New York Stock Exchange and the London Stock Exchange. Since then, the company has primarily focused on exploration activities into Victoria's Gippsland Basin.

Currently, Woodside operates exploration and development operations in Australia and a number of other countries such as the United States, South Korea, New Zealand, Canada, Ireland, Myanmar, Gabon, and Cameroon. In Australia, Woodside operates and develops a number of liquefied natural gas projects, as well as operates the Enfield and Pyrenees oil fields off Exmouth in Western Australia.

Founded: 26 July 1954
Headquarters: Perth, Western Australia

Website: https://www.woodside.com/

Atlassian Corporation Plc is a software company based in Australia and the United States, specializing in product development for software programmers and project managers.

Atlassian was founded in 2002 by two co-founders, Mike Cannon-Brookes and Scott Farquhar. In 2004, the company launched Confluence, a team collaboration platform that allows users to work together on projects such as co-create and sharing documents and media assets.

Besides Confluence, Atlassian's main products are highly appreciated by most of the major companies in the world. These products are intended to provide a digital solution to improve the adaptability and business performance of organizations and businesses around the world.

Jira Align, as an example. This Atlassian application is intended to link a company's technical and business strategy. Companies may use Jira Align to collect data about certain teams and utilize this data to assess the scope, flow, and level of interdependence across teams and portfolios. In addition, Jira Software is designed to assist software professionals in easily planning, tracking, and deploying projects and is regarded as one of the top software development tools for Agile teams. For developers, this application generates a project plan that will assist team members collaborate from ideation to product deployment.

Founded: 2002
Headquarters: Sydney, Australia and San Francisco, USA

Website: https://www.atlassian.com/company