SA’s top 100 companies: 80-51
The countdown continues of state’s top 100 companies in InDaily’s South Australian Business Index.
Oct 19, 2016, updated May 14, 2025
The Index, based on analysis of market capitalisation by local financial services company Taylor Collison, shows a mix of business sectors including agriculture, food and beverage, building and construction, IT, mining, professional services and finance.
The list shows the diversity of South Australian companies, as well as the dynamic nature of doing business – which isn’t always a positive.
Until recently, today’s list would have also included Home Australia – the building company of South Australian senator Bob Day, which collapsed this week. The company would have ranked solidly in the middle of the top 100.
The full top 100 will be revealed in InDaily tomorrow.
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 | 80 Doherty Trade Services Sector: Building and construction Revenue 2016: Not for publishing Doherty Trade Services is multi-trade services specialising in maintenance, repair works and upgrades for clients in the government and commercial sectors. |
 | 79 GPA Engineering Sector: Engineering Revenue 2016: $35,000,000 GPA develops, engineers and implements industrial projects in Oil & Gas, Water Treatment & Distribution, Mining & Minerals and Power Generation & Distribution |
 | 78 Police Credit Union Sector: Financials Revenue 2016: $37,990,000 Police Credit Union is a membership based financial firm with members spanning communities across South Australia and the Northern Territory. |
 | 77 Bardrill Corporation Ltd Sector: Building and construction Revenue 2016: $52,278,000 The company has primarily operated in the oil and gas space in the Cooper and Eromanga Basins for major clients including Santos. |
 | 76 Clean Seas Tuna Limited Sector: Agriculture Revenue 2016: $30,089,000 Clean Seas is Australia’s only commercial producer of Kingfish and a recognised leader in the country’s emerging aquaculture industry |
 | 75 Alcidion Limited Sector: Health Care Revenue 2016: $4,024,964 Alcidion is a leading provider of intelligent informatics for high performance healthcare. |
 | 74 Credit Union SA Sector: Financials Revenue 2016: $40,794,000 Credit Union SA is South Australia’s third largest Credit Union with over 50,000 members |
 | 73 Kangaroo Island Plantation Timbers Sector: Agriculture Revenue 2016: Not for publishing Kangaroo Island Plantation Timbers is Australia’s only listed timber company. It manages a wholly-owned portfolio of hardwood and softwood forestry plantations on Kangaroo Island, South Australia. |
 | 72 CCW Co-Op Limited Sector: Agriculture Revenue 2016: $55,653,000 CCW Co-operative Limited has almost 600 grower members and a grape supply base close to 200,000 tonnes of winegrapes, making us the largest grape supply co-operative in Australia. |
 | 71 Guidera O’Connor Sector: Building and construction Revenue 2016: $41,000,000 Guidera O’Connor Pty Ltd (GO) is a private Australian owned company providing design and construction services to the Australian Water Industry. |
 | 70 Legend Corporation Limited Sector: Information technology and equipment Revenue 2016: Not for publishing Legend Corporation Limited is an Engineering Solutions Provider, operating in electrical, information technology, semiconductor, medical, power, rail, mining and other utility industries. |
 | 69 Maughan Thiem Automotive Pty Ltd Sector: Automotive Revenue 2016: $132,880,000 Maughan Thiem Automotive is an automotive dealer offering new and used vehicles from various locations. |
 | 68 A.E. Haigh Proprietary Limited Sector: Food and Beverage Revenue 2016: $55,000,000 Haigh’s Chocolates is an Australian confectionery industry company selling high quality chocolate and related products to customers in South Australia, Victoria and New South Wales. |
 | 67 Prophecy International Holdings Limited Sector: Information technology and equipment Revenue 2016: $14,700,000 Prophecy International is an Australian-based multinational that develops software used by large and complex organizations worldwide |
 | 66 Taplin Group of Companies Sector: Housing Revenue 2016: $61,467,101 The Taplin Group of Companies is a South Australian, family-owned business specialising in selling and property management in residential and commercial real estate. |
 | 65 Data Action Pty Ltd Sector: Information technology and equipment Revenue 2016: $41,500,000 Providers of Excellent Technology Solutions for the Mutual Market |
 | 64 Fyfe Pty Ltd Sector: Professional services Revenue 2016: $33,200,000 Fyfe is a well established land, resource and infrastructure development consultancy specialising in comprehensive engineering, environmental, planning and surveying services for land development, energy, mining and oil and gas industries across Australia. |
 | 63 SAGE Group Holdings Ltd. Sector: Other Marketing capitalisation: $55,355,000 Providing electrical engineering and automation services in Australia. Based in Melrose Park, SAGE Group Holdings Limited is a subsidiary of Advest Pty Ltd. |
 | 62 Duxton Water Limited Sector: Agriculture Revenue 2016: Not for publishing Incorporated in April 2016 the company presents an opportunities to invest in Australian Water Entitlements – a key production input into a number of agricultural industries. |
 | 61 L. H. Perry & Sons Pty Ltd Sector: Energy Revenue 2016: $105,999,077 Independent, family owned Fuel Distribution Company founded in 1949. Perrys is a distributor of Mobil fuel and lubricants through its bulk deliveries as well as BP fuel and lubricants through its service station and reseller sites. |
 | 60 Iron Road Limited Sector: Metals and mining Revenue 2016: Not for publishing Iron Road’s vision is to become a trusted and reliable supplier of premium iron concentrates to the Asian marketplace. |
 | 59 Flinders Port Holding Pty Ltd Sector: Infrastructure and transportation Revenue 2016: $205,100,000 Leading privately-owned port operator with seven ports in South Australia also offering hydrographic survey services. |
 | 58 Nova Aerospace Pty Ltd Sector: Professional services Revenue 2016: $84,000,000 Founded in 2000 as Nova Aerospace. A private professional services firm operating in the areas of defence, energy and utilities, communications and transportation. |
 | 57 VIP Australia Sector: Commercial services Revenue 2016: $91,560,000 Franchising in home cleaning, commercial cleaning, lawn and garden maintenance. Founded in 1972, now with more than 1000 franchisees across Australia. |
 | 56 MGA & Whittles Group of Companies Sector: Financials Revenue 2016: $93,700,000 MGA are an award-winning risk advice and general insurance broking service for over 35 years; Whittles provide professional and experienced strata and community title management. |
 | 55 Samuel Smith & Son Limited Sector: Food and Beverage Revenue 2016: $144,054,000 Family owned wine merchant established in 1923 with a portfolio of national and international wines, spirits and premium ales. |
 | 54 Police Health Limited Sector: Financials Revenue 2016: $104,944,648 Australia’s only private health insurer run by police for police offering comprehensive health insurance to 50,000 members across the policing community in Australia. |
 | 53 Civil & Allied Technical Construction Pty Ltd. Sector: Building and construction Revenue 2016: Not for publishing A well established, resource based company delivering and managing power, mining, water and general infrastructure projects for national and international clients. |
 | 52 Hills Limited Sector: Information technology and equipment Revenue 2016: $328,900,000 Technology product and services business with more than 700 employees delivering products from security and IT to health solutions and communications across Australia and NZ. |
 | 51 Thomson Geer Sector: Professional services Revenue 2016: $136,000,000 Large corporate law firm with 90 partners working across ASX clients, major global foreign corporations government enterprises and private corporations with offices in Adelaide, Sydney, Melbourne and Brisbane. |
Some estimates derived from third party providers
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