Tamtam Start free

Critical infrastructure operators headquartered in Victoria

Tamtam tracks 85 critical infrastructure operators headquartered in Victoria. This list ranks all of them by number of employees on LinkedIn, led by ANZ, NAB and Australia Post. Their median headcount is 1,752. Half of them were founded in 1985 or later. The most common headquarters are Melbourne (39), Docklands (2) and Richmond (2).

馃嚘馃嚭 Victoria85 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
ANZanz.com.au

A banking institution with over 180 years of history, striving to create a sustainable economy for all to thrive and build better lives

Banking 馃嚘馃嚭 Melbourne 50,843 n/a
2
NABnab.com.au

The company is dedicated to serving customers and supporting communities through their banking services, emphasizing on what matters most

Banking 馃嚘馃嚭 Melbourne 40,896 n/a
3
Australia Postauspost.com.au

Connecting businesses with consumers through postal, retail, financial, communications, and etailing services focused on continuous improvement.

Consumer Services 馃嚘馃嚭 Melbourne 16,807 1809
4
Toll Grouptollgroup.com

Global supply chain and transport services solving logistics challenges for businesses through a network of five hundred sites across twenty-nine distinct markets.

Transportation, Logistics, Supply Chain and Storage 馃嚘馃嚭 Melbourne 11,663 1888
5
Monash Healthmonashhealth.org

A publicly-funded health service in Melbourne's Victoria, Australia, striving for excellence in healthcare, supporting staff, and the community with diverse career opportunities

Hospitals and Health Care 馃嚘馃嚭 Clayton 10,274 1860
6
Bendigo Bankbendigobank.com.au

Community-focused bank providing trusted financial services and support to millions of Australians, emphasizing customer-centric banking solutions.

Banking 馃嚘馃嚭 Bendigo 8,768 1858
7
AMP Limitedamp.com.au

A retail wealth management and banking business providing financial advice, superannuation, and banking services to help customers achieve their financial goals

Financial Services 馃嚘馃嚭 Sydney 6,100 1849
8
The Royal Melbourne Hospitalthermh.org.au

A leading healthcare provider in Melbourne, dedicated to advancing healthcare through research, innovation, and a compassionate workforce, serving the community

Hospitals and Health Care 馃嚘馃嚭 Parkville 5,837 1848
9
Alfred Healthalfredhealth.org.au

Leading metropolitan health service providing specialist medical, surgical, trauma, intensive care, research, education, and training across multiple hospital locations.

Hospitals and Health Care 馃嚘馃嚭 Melbourne 5,721 n/a
10
Western Healthwesternhealth.org.au

A provider of in-hospital and community-based health services in Melbourne's west, working with over 11,000 staff and 700 volunteers

Hospitals and Health Care 馃嚘馃嚭 Footscray 5,626 1953
11
Eastern Healtheasternhealth.org.au

A provider of diverse healthcare services including emergency, surgical, mental health, and community care, with a focus on respect and continuous improvement

Hospitals and Health Care 馃嚘馃嚭 Box Hill 5,548 2000
12
Austin Healthaustin.org.au

A healthcare organization focused on improving patients' lives through specialized medical services, wellness initiatives, and career development opportunities for employees

Hospitals and Health Care 馃嚘馃嚭 Melbourne 4,802 n/a
13
Insignia Financialinsigniafinancial.com.au

A leading wealth manager in Australia, founded in 1846 to protect families, now offering a range of tailored financial solutions

Financial Services 馃嚘馃嚭 Melbourne 4,262 n/a
14
Healthscopehealthscope.com.au

A leading private healthcare provider in Australia with 41 hospitals, focusing on quality care and positive clinical outcomes for patients

Hospitals and Health Care 馃嚘馃嚭 Melbourne 4,229 1985
15
Department of Transport and Planningvic.gov.au

The integrated Department of Transport plans and operates transport based on the needs of people and products, focusing on destinations over specific modes

Government Administration 馃嚘馃嚭 4,181 n/a
16
Northern Healthnh.org.au

A key provider of public health care in Melbourne's northern region, offering medical, surgical, mental health, and rehabilitation services through four campuses

Hospitals and Health Care 馃嚘馃嚭 Melbourne 4,155 n/a
17
Jetstar Airwaysjetstar.com

An extensive airline group in the Asia Pacific region offering low fares to fly to over 85 destinations with over 5,000 weekly flights

Airlines and Aviation 馃嚘馃嚭 Collingwood 4,003 2004
18
Victoria Policepolice.vic.gov.au

Provides 24/7 policing services across Victoria, supported by diverse professionals, ensuring community safety and effective emergency management.

Law Enforcement 馃嚘馃嚭 Melbourne 3,734 1853
19
Metro Trains Melbournemetrotrains.com.au

Operator of Melbourne's suburban railway network, running frequent, high-capacity train services across 16 lines to support city growth.

Rail Transportation 馃嚘馃嚭 Melbourne 3,651 2009
20
Barwon Healthbarwonhealth.org.au

Leading provider of advanced healthcare services in Victoria, focusing on state-of-the-art treatment and personalized care for the community

Hospitals and Health Care 馃嚘馃嚭 Geelong 3,588 1998
21
Epworthepworth.org.au

A leading not-for-profit private hospital group in Victoria, offering diagnosis, treatment, and rehabilitation services with a focus on exceptional patient care

Hospitals and Health Care 馃嚘馃嚭 Richmond 3,522 1920
22
Cleanaway Waste Managementcleanaway.com.au

Australia's largest public waste management company, operating in over 250 locations Provides waste collection, recycling, resource recovery, industrial services, and workshop waste solutions

Environmental Services 馃嚘馃嚭 Melbourne 3,313 1989
23
Hunter New England Local Health Districtjobs.health.nsw.gov.au

Provides public health services across twenty-seven hospitals, eleven multipurpose centres, and forty-three community health clinics, delivering care to over 920,000 people.

Hospitals and Health Care 馃嚘馃嚭 3,283 n/a
24
The Royal Children's Hospitalrch.org.au

A leading specialist paediatric hospital providing outstanding care, clinical services, trauma center, research, and training programs for children and families

Hospitals and Health Care 馃嚘馃嚭 Parkville 3,244 n/a
25
Bolton Clarkeboltonclarke.com.au

A leading not-for-profit aged care provider in Australia, Bolton Clarke supports over 130,000 individuals with services including home care, retirement living, and residential aged care

Hospitals and Health Care 馃嚘馃嚭 3,239 1885
26
St Vincent's Hospital Melbournesvhm.org.au

Leading teaching and research health service providing care across Melbourne with a focus on excellence, compassion, integrity, and justice

Hospitals and Health Care 馃嚘馃嚭 Fitzroy 3,007 1893
27
Ambulance Victoriaambulance.vic.gov.au

Providing emergency medical transport, pre-hospital care, and air ambulance services to help maintain life and reduce injuries in Victoria

Hospitals and Health Care 馃嚘馃嚭 Doncaster 2,897 n/a
28
Peninsula Healthpeninsulahealth.org.au

A public health service in Frankston and the Mornington Peninsula offering world-class healthcare through hospitals and community services for all ages and specialties

Hospitals and Health Care 馃嚘馃嚭 Frankston 2,756 1941
29
Regis Aged Careregis.com.au

A company provides services to older Australians through residential aged care, home care, therapy centers, and retirement villages, with a focus on enhancing wellness and safety

Hospitals and Health Care 馃嚘馃嚭 Camberwell 2,565 1993
30
Spotless Groupdownergroup.com

Provider of various services, now under Downer Group ownership No longer active on social media

Facilities Services 馃嚘馃嚭 Melbourne 2,551 n/a
31
Metro South Healthmetrosouth.health.qld.gov.au

Major public healthcare provider for Brisbane's south side, Logan, Redlands, Scenic Rim, operating hospitals, community, specialty, and statewide services, renowned for teaching and research.

Hospitals and Health Care 馃嚘馃嚭 2,475 n/a
32
EnergyAustraliaenergyaustralia.com.au

A leading Australian energy company providing practical and sustainable energy solutions, including carbon neutral options, while supporting local communities and indigenous peoples

Utilities 馃嚘馃嚭 Melbourne 2,286 n/a
33
Australian Red Cross Lifebloodlifeblood.com.au

An organization committed to providing life-giving products and services for the well-being of all Australians through blood donations and clinical excellence

Hospitals and Health Care 馃嚘馃嚭 West Melbourne 2,252 n/a
34
Ascianoasciano.com.au

Leading rail and cargo ports operator in Australia and New Zealand, handling vast quantities of commodities and goods to support regional economy

Transportation, Logistics, Supply Chain and Storage 馃嚘馃嚭 Melbourne 2,203 2007
35
Grampians Healthgrampianshealth.org.au

A collaborative partnership of healthcare services delivering tailored, sustainable healthcare to meet the needs of the workforce and community

Hospitals and Health Care 馃嚘馃嚭 Ballarat 2,190 1854
36
Mercy Health Australiamercyhealth.com.au

Catholic organization providing a wide range of healthcare services, including hospital care, aged care, mental health programs, maternity services, and home care

Hospitals and Health Care 馃嚘馃嚭 Richmond 2,153 1920
37
Transurbantransurban.com

An Australian-owned company developing toll roads, conducting safety research, advocating for sustainable transport, and enhancing community liveability in operating areas

Truck Transportation 馃嚘馃嚭 Melbourne 2,145 1996
38
Bendigo Healthbendigohealth.org.au

A regional health service offering a wide range of medical services to the community, focused on providing excellent care to every person

Hospitals and Health Care 馃嚘馃嚭 Bendigo 2,050 1853
39
AusNetausnetservices.com.au

Leading energy delivery service in Victoria with over $11 billion in assets, serving 15 million customers Engineering a sustainable future for Australia's infrastructure needs

Utilities 馃嚘馃嚭 Southbank 2,006 n/a
40
Cabrini HEALTHcabrini.com.au

A not-for-profit health service offering comprehensive care, education, and research, with a focus on patient well-being and community support

Hospitals and Health Care 馃嚘馃嚭 Malvern 1,922 n/a
41
Australian Energy Market Operator (AEMO)aemo.com.au

Operate Australia's largest gas and electricity markets, provide planning, forecasting, and security advice to ensure energy reliability and security.

Utilities 馃嚘馃嚭 Melbourne 1,921 2009
42
Vocusvocus.com.au

Provides extensive fibre network and diverse connectivity solutions including subsea cables, private networks, and satellite services across Australia.

Telecommunications 馃嚘馃嚭 Melbourne 1,801 n/a
43
CitiPower and Powercorpowercor.com.au

Operate electricity distribution networks serving 1.2 million customers, enabling renewable energy integration, ensuring safety, reliability, and supporting clean energy transition.

Utilities 馃嚘馃嚭 Melbourne 1,752 n/a
44
Country Fire Authority (CFA)cfa.vic.gov.au

A large group in Victoria dedicated to protecting lives and property, responding to hazards, and collaborating with emergency services partners

Public Safety 馃嚘馃嚭 Burwood East 1,748 n/a
45
Vocus Group Limitedvocusgroup.com.au

Provider of telecommunications infrastructure in Australia and New Zealand with a focus on simplicity, reliability, and automation to meet customer connectivity needs

Telecommunications 馃嚘馃嚭 Melbourne 1,714 n/a
46
Viva Energy Australiavivaenergy.com.au

Aiming for net zero emissions by 2050, this organization supports Australia's energy needs through innovative projects for sustainable energy solutions

Oil and Gas 馃嚘馃嚭 Docklands 1,638 2014
47
V/Linevline.com.au

Australia's largest regional public transport operator connecting communities through safe, comfortable, and reliable train and coach services, fostering strong stakeholder relationships for community prosperity

Rail Transportation 馃嚘馃嚭 Melbourne 1,573 1856
48
Jemenajemena.com.au

Provider of gas and electricity services with over a century of experience, supplying essential energy to millions of households and businesses

Utilities 馃嚘馃嚭 Melbourne 1,560 2008
49
Melbourne Watermelbournewater.com.au

Manages and protects water resources, provides clean drinking water, treats sewage, reduces flood risk, and keeps rivers, creeks, and catchments healthy.

Utilities 馃嚘馃嚭 Melbourne 1,549 1891
50
The Royal Women's Hospitalthewomens.org.au

Specialist women's tertiary hospital in Melbourne, offering maternity, neonatal, gynaecology, and cancer services Promotes diversity, inclusion, and gender equity for employees

Hospitals and Health Care 馃嚘馃嚭 Melbourne 1,540 1856
51
Dodo Servicesdodo.com

Provider of telecommunications, energy, and insurance services focused on competitive pricing, customer choice, and delivering great value in Australia.

Telecommunications 馃嚘馃嚭 Melbourne 1,526 2001
52
Integral Diagnostics (IDX)integraldiagnostics.com.au

Leading provider of medical imaging services in Australia and New Zealand, delivering state-of-the-art diagnostic services through multiple clinics and hospital sites

Hospitals and Health Care 馃嚘馃嚭 Melbourne 1,398 n/a
53
Zinfrazinfra.com.au

Zinfra is a leading delivery partner in Australia's energy infrastructure sector, providing engineering, project management, construction, and maintenance services with a focus on inclusivity and diversity

Utilities 馃嚘馃嚭 Melbourne 1,348 2012
54
Australian Clinical Labsclinicallabs.com.au

A leading provider of pathology services in Australia, offering a comprehensive range of advanced pathology testing, innovative technologies, and convenient collection centers nationwide

Hospitals and Health Care 馃嚘馃嚭 Clayton 1,335 n/a
55
Bendigo Bankbendigobank.com.au

A large bank in Australia offering competitive products, innovative services, and support for communities with a focus on history, sincerity, and integrity

Banking 馃嚘馃嚭 Bendigo 1,188 1858
56
Yarra Tramsyarratrams.com.au

A leading provider of public transport in Melbourne, operating the largest tram network in the world, connecting thousands of people daily

Rail Transportation 馃嚘馃嚭 Melbourne 1,184 1883
57
Kineticwearekinetic.com

A global transport network operator providing bus and rail services in multiple countries, committed to sustainability, diversity, and community impact

Ground Passenger Transportation 馃嚘馃嚭 Melbourne 1,168 n/a
58
CGU Insurancecgu.com.au

Provider of insurance products with over 165 years of experience, working closely with brokers to ensure exceptional service and peace of mind for customers

Insurance 馃嚘馃嚭 Melbourne 1,162 1851
59
Greater Western Watergww.com.au

Provider of water and sanitation services for over 580,000 customers in Melbourne's West, spanning 3,700 square kilometres from CBD to Lancefield

Utilities 馃嚘馃嚭 Footscray 1,161 2021
60
UniSuperunisuper.com.au

Australian super fund serving thinkers, creators, and investigators Largest fund with 620,000+ members and $115B in assets, shaping a better future

Financial Services 馃嚘馃嚭 Melbourne 1,142 2000
61
South East Watersoutheastwater.com.au

Deliver essential water and sewerage services to over 1.8 million people in Melbourne鈥檚 south east with innovation and sustainability focus.

Utilities 馃嚘馃嚭 Frankston 1,117 1995
62
Fire Rescue Victoriafrv.vic.gov.au

Fire and rescue service providing emergency response, complex rescues, medical aid, and hazardous spill management across Victoria.

Public Safety 馃嚘馃嚭 East Melbourne 1,057 n/a
63
AIA Australiaaia.com.au

Specialist in life insurance, health insurance, and wellbeing programs protecting and enhancing millions of Australians' lives and health.

Insurance 馃嚘馃嚭 Melbourne 1,036 n/a
64
Aussie Broadbandaussiebroadband.com.au

A growing internet service provider in Australia, offering high-quality internet services with a focus on customer satisfaction, local support, and community impact

Telecommunications 馃嚘馃嚭 Morwell 1,015 2003
65
Cbus Super Fundcbussuper.com.au

provides superannuation and income stream accounts to construction industry workers, managing over $85 billion for more than 910,000 members

Financial Services 馃嚘馃嚭 Melbourne CBD 991 1984
66
Latrobe Regional Healthlrh.com.au

Specialist referral and trauma center offering medical services, elective surgery, emergency care, mental health services, and clinical experience for students

Hospitals and Health Care 馃嚘馃嚭 Traralgon 987 n/a
67
Upup.com.au

A company offering an upgraded banking experience focused on making money management easy for users

Banking 馃嚘馃嚭 Melbourne 975 2017
68
Yarra Valley Wateryvw.com.au

Provide water supply and sewage treatment services to millions, including water recycling for residential and public use across a large area.

Utilities 馃嚘馃嚭 Melbourne 899 1995
69
Goulburn Valley Healthgvhealth.org.au

GV Health is a multi-campus health facility serving a population of 120,000, providing hospital, community health, aged care services, and research partnerships with universities

Hospitals and Health Care 馃嚘馃嚭 Shepparton 869 1876
70
Red Energyredenergy.com.au

Australian energy company providing affordable, personal, and simple energy solutions with local customer support and over 1200 employees.

Utilities 馃嚘馃嚭 Cremorne 847 2004
71
Melbourne Airportmelbourneairport.com.au

The organization operates Melbourne's major airport, facilitating travel, logistics, and employment while aiming to be Australia's top airport destination

Airlines and Aviation 馃嚘馃嚭 Tullamarine 721 n/a
72
Tasmanian Health Servicegov.au

This organization manages and delivers integrated health services to maintain and improve the health and wellbeing of Tasmanians and the community

Wellness and Fitness Services 馃嚘馃嚭 717 2015
73
mecwacaremecwacare.org.au

A non-profit organization providing a wide range of care and support services for the elderly and individuals with disabilities in Victoria

Non-profit Organizations 馃嚘馃嚭 Malvern 698 1959
74
Triple Zero Victoriatriplezero.vic.gov.au

Provider of 24-hour emergency call-taking and dispatch services for police, fire, ambulance, and VICSES in Victoria, handling over 26 million calls annually

Government Administration 馃嚘馃嚭 Burwood East 697 2005
75
Sydney Adventist Hospitalorg.au

A not-for-profit healthcare organization providing holistic care through expert medical services and compassionate staff for inpatients and outpatients

Hospitals and Health Care 馃嚘馃嚭 692 n/a
76
Bank Australiabankaust.com.au

A customer-owned bank focused on clean money movement, reinvesting profits to provide competitive rates, responsible banking, and positive impact

Banking 馃嚘馃嚭 Collingwood 651 1957
77
Judo Bankjudo.bank

Specializing in SME business banking in Australia, they provide personalized service and expertise to support and grow small and medium businesses

Banking 馃嚘馃嚭 Melbourne 640 2016
78
Melbourne Pathologymps.com.au

Melbourne Pathology provides premier pathology services in Victoria, with state-of-the-art laboratories and experienced pathologists offering diagnostic excellence and independence

Medical and Diagnostic Laboratories 馃嚘馃嚭 Collingwood 638 1923
79
Transdev Australia & New Zealandtransdev.com.au

A leading provider of public transport services in Australia and New Zealand, with a focus on innovation, safety, and customer satisfaction

Urban Transit Services 馃嚘馃嚭 Melbourne 634 1998
80
ME Bankmebank.com.au

Aussie bank focusing on making banking more ethical and accessible through low-cost home loans and a full suite of banking services

Banking 馃嚘馃嚭 Melbourne 626 1994
81
Suburban Rail Loop Authoritybigbuild.vic.gov.au

Leading the largest infrastructure project in Victoria's history, connecting major rail lines in Melbourne to improve transportation and community engagement

Government Administration 馃嚘馃嚭 Melbourne 596 n/a
82
ENGIE AUengie.com.au

Leader in low carbon generation, energy infrastructures, and efficient solutions worldwide Operates renewable and gas-fired plants, and retail business in Australia

Utilities 馃嚘馃嚭 Southbank 351 n/a
83
Simply Energysimplyenergy.com.au

A provider of smart electricity and gas solutions in Australia, committed to making energy simple, affordable, and sustainable through innovation and partnerships

Utilities 馃嚘馃嚭 Melbourne 184 n/a
84
Treasury Corporation of Victoriatcv.vic.gov.au

As the central financing authority for the state, we provide tailored loans, financing, advisory, and investment services to government entities

Financial Services 馃嚘馃嚭 Melbourne 64 1993
85
Infranexus Management Pty Ltdinfranexus.com.au

Active manager of infrastructure assets, specializing in Australian social infrastructure Provides key support services to fund assets and manages long-term PPP infrastructure businesses

Financial Services 馃嚘馃嚭 Docklands 48 n/a

Turn this list into pipeline

Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.

Build your own list, free

How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.

More company lists in Victoria

The same list elsewhere in Australia