# 28 leading public sector organisations in Sydney

Tamtam tracks 28 public sector organisations headquartered in Sydney. This list ranks all of them by number of employees on LinkedIn, led by I work for NSW, Sydney Trains and NSW Police Force. Their median headcount is 813. Half of them were founded in 1980 or later.

These are public sector organisations in Sydney. They are mostly large groups, including I work for NSW, a government department providing essential services, and Sydney Trains, which operates the city's rail network. Other examples include the NSW Police Force, responsible for law enforcement, and the Reserve Bank of Australia, the country's central bank.

The companies listed are predominantly involved in government administration, transportation, and healthcare. A common pattern is that the majority of these organisations are headquartered in Sydney, reflecting its role as a major administrative and economic hub.

🇦🇺 Sydney · 28 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [I work for NSW](https://www.tamtam.ai/c/i-work-for-nsw) (iworkfor.nsw.gov.au)<br>Government departments and agencies providing essential services including health, education, housing, transport, and infrastructure across New South Wales. | Government Administration | 🇦🇺 Sydney | 97,651 |  |
| 2 | [Sydney Trains](https://www.tamtam.ai/c/sydney-trains) (transport.nsw.gov.au)<br>A leading transport organization in Sydney operates reliable trains, focusing on customer service, career progression, and maintaining a safe, efficient network | Rail Transportation | 🇦🇺 Sydney | 6,549 |  |
| 3 | [NSW Police Force](https://www.tamtam.ai/c/nsw-police-force) (police.nsw.gov.au)<br>A leading police force in New South Wales, Australia, serving a population of seven million across land, sea, and air with community-based policing services | Law Enforcement | 🇦🇺 Sydney | 3,694 | 1862 |
| 4 | [NSW Ambulance](https://www.tamtam.ai/c/nsw-ambulance) (ambulance.nsw.gov.au)<br>Provider of high quality out-of-hospital clinical care to over 725 million people in NSW through emergency responses and community safety programs | Hospitals and Health Care | 🇦🇺 Sydney | 2,840 | 1895 |
| 5 | [Reserve Bank of Australia](https://www.tamtam.ai/c/reserve-bank-of-australia) (rba.gov.au)<br>Australia's central bank contributes to price stability, full employment, and economic prosperity through setting cash rates, managing banknotes, and providing banking services | Banking | 🇦🇺 Sydney | 2,139 |  |
| 6 | [Western Sydney Local Health District](https://www.tamtam.ai/c/western-sydney-local-health-district) (nsw.gov.au)<br>Delivering comprehensive healthcare to over a million residents in Western Sydney through top-notch clinical expertise, research, and compassionate care | Hospitals and Health Care | 🇦🇺 Sydney | 1,764 | 2011 |
| 7 | [StarTrack](https://www.tamtam.ai/c/startrack) (startrack.com.au)<br>Australia's leading freight and logistics provider offering innovative solutions, advanced technology, and nationwide coverage for seamless delivery services | Truck Transportation | 🇦🇺 Sydney | 1,761 | 1974 |
| 8 | [Special Broadcasting Service (SBS) Australia](https://www.tamtam.ai/c/special-broadcasting-service-sbs-australia) (sbs.com.au)<br>National broadcaster providing multilingual, multicultural, and Indigenous media content, promoting diversity and inclusion across Australia. | Broadcast Media Production and Distribution | 🇦🇺 Sydney | 1,727 | 1975 |
| 9 | [icare NSW](https://www.tamtam.ai/c/icare-nsw) (icare.nsw.gov.au)<br>Provides insurance and long-term care support for workplace and road injuries, protecting NSW businesses, workers, and government assets. | Insurance | 🇦🇺 Sydney | 1,528 | 2015 |
| 10 | [Australian Trade and Investment Commission (Austrade)](https://www.tamtam.ai/c/australian-trade-and-investment-commission-austrade) (austrade.gov.au)<br>Promoting Australian trade, investment, tourism, and education worldwide, providing market insights, attracting investment, and supporting economic growth. | International Trade and Development | 🇦🇺 Sydney | 1,458 | 1987 |
| 11 | [Sydney Metro](https://www.tamtam.ai/c/sydney-metro) (sydneymetro.info)<br>Revolutionizing Sydney's public transport with a network of four metro lines, 46 stations, and 113km of new rail by 2030 | Rail Transportation | 🇦🇺 Sydney | 1,103 |  |
| 12 | [Australian Prudential Regulation Authority](https://www.tamtam.ai/c/australian-prudential-regulation-authority) (apra.gov.au)<br>Regulator overseeing Australian financial services industry to protect community by enforcing prudential standards for stable, efficient system Diverse professionals ensure compliance | Financial Services | 🇦🇺 Sydney | 994 | 1998 |
| 13 | [NSW Justice Health & Forensic Mental Health Network](https://www.tamtam.ai/c/nsw-justice-health-and-forensic-mental-health-network) (nsw.gov.au)<br>Delivering healthcare to adults and young people in contact with forensic mental health and criminal justice systems in NSW | Hospitals and Health Care | 🇦🇺 Sydney | 898 |  |
| 14 | [Administrative Review Tribunal](https://www.tamtam.ai/c/administrative-review-tribunal) (art.gov.au)<br>They are the Administrative Appeals Tribunal, providing information about their services and policies through their official LinkedIn account | Government Administration | 🇦🇺 Sydney | 813 | 1975 |
| 15 | [Sutherland Shire Council](https://www.tamtam.ai/c/sutherland-shire-council) (sutherlandshire.nsw.gov.au)<br>A local government organization committed to serving and connecting the community through a wide range of services and programs | Government Relations Services | 🇦🇺 Sydney | 807 | 1906 |
| 16 | [WaterNSW](https://www.tamtam.ai/c/waternsw) (waternsw.com.au)<br>The company manages and protects water sources, supplies bulk water, operates water systems, plans and delivers infrastructure, and provides customer water transaction services | Utilities | 🇦🇺 Sydney | 807 | 2015 |
| 17 | [Australian Digital Health Agency](https://www.tamtam.ai/c/australian-digital-health-agency) (digitalhealth.gov.au)<br>Leading national efforts to improve health outcomes in Australia through delivery of digital healthcare systems and driving uptake of digital health technologies | Hospitals and Health Care | 🇦🇺 Sydney | 782 | 2016 |
| 18 | [Tourism Australia](https://www.tamtam.ai/c/tourism-australia) (tourism.australia.com)<br>Australian government agency promoting tourism through advertising, PR, trade shows, consumer promotions, online communications, and consumer research in 15 key markets | Advertising Services | 🇦🇺 Sydney | 742 | 2004 |
| 19 | [NSW TrainLink](https://www.tamtam.ai/c/nsw-trainlink) (transport.nsw.gov.au)<br>NSW TrainLink connects communities in NSW through intercity, regional, and interstate train and coach services, offering safe and comfortable travel options | Truck Transportation | 🇦🇺 Sydney | 542 |  |
| 20 | [NSW Crown Solicitor's Office](https://www.tamtam.ai/c/nsw-crown-solicitor-s-office) (cso.nsw.gov.au)<br>A leading provider of legal services to the NSW Government, managing litigation, legal drafting, and representation across various practice areas | Legal Services | 🇦🇺 Sydney | 429 |  |
| 21 | [Art Gallery NSW](https://www.tamtam.ai/c/art-gallery-nsw) (artgallery.nsw.gov.au)<br>A leading art museum in Australia, showcasing Australian, Aboriginal, European, Asian, and contemporary art to over one million visitors annually | Museums, Historical Sites, and Zoos | 🇦🇺 Sydney | 403 | 1871 |
| 22 | [State Library of New South Wales](https://www.tamtam.ai/c/state-library-of-new-south-wales) (sl.nsw.gov.au)<br>The organization collects, preserves, and provides access to materials related to NSW's history, encouraging research, learning, and enjoyment for all | Libraries | 🇦🇺 Sydney | 365 | 1826 |
| 23 | [NSW State Insurance Regulatory Authority](https://www.tamtam.ai/c/nsw-state-insurance-regulatory-authority) (sira.nsw.gov.au)<br>Regulatory body overseeing workers compensation, CTP insurance, and home building compensation to ensure service delivery, affordability, and sustainability of insurance schemes | Government Administration | 🇦🇺 Sydney | 337 |  |
| 24 | [NSW Telco Authority](https://www.tamtam.ai/c/nsw-telco-authority) (nsw.gov.au)<br>Operates and manages Public Safety Network for frontline responders, working on key NSW Government projects and coordinating connectivity strategy | Telecommunications | 🇦🇺 Sydney | 321 | 1992 |
| 25 | [Museums of History NSW](https://www.tamtam.ai/c/museums-of-history-nsw) (mhnsw.au)<br>Preserving and sharing the unique and fascinating personal stories of Australian culture and heritage through carefully curated exhibitions and historic sites | Museums, Historical Sites, and Zoos | 🇦🇺 Sydney | 295 | 1980 |
| 26 | [Parliament of NSW](https://www.tamtam.ai/c/parliament-of-nsw-sydney) (gov.au)<br>Australia's oldest legislative body representing New South Wales, overseeing government functions, and upholding democratic principles through historical evolution and constitutional changes | Political Organization | 🇦🇺 Sydney | 255 |  |
| 27 | [Botanic Gardens of Sydney](https://www.tamtam.ai/c/botanic-gardens-of-sydney) (botanicgardens.org.au)<br>A purpose-driven organization focused on providing solutions to environmental challenges, connecting people to public spaces, and promoting conservation through world-leading botanic gardens and research | Zoos and Botanical Gardens | 🇦🇺 Sydney | 219 | 1816 |
| 28 | [Investment NSW](https://www.tamtam.ai/c/investment-nsw) (nsw.gov.au)<br>NSW government group promoting economic growth by attracting investment, facilitating exports, and supporting priority sectors like technology, manufacturing, education, and defense | Government Administration | 🇦🇺 Sydney | 185 | 2021 |

## 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 Nov 11, 2026.

## More company lists in Sydney

- [The largest companies in Sydney](https://www.tamtam.ai/l/largest-companies-sydney) (912)
- [Multinational companies in Sydney](https://www.tamtam.ai/l/multinational-companies-sydney) (279)
- [Financial services firms in Sydney](https://www.tamtam.ai/l/financial-services-firms-sydney) (205)
- [Financial Services companies in Sydney](https://www.tamtam.ai/l/financial-services-companies-sydney) (143)
- [Professional services firms in Sydney](https://www.tamtam.ai/l/professional-services-firms-sydney) (93)
- [Publicly traded companies in Sydney](https://www.tamtam.ai/l/publicly-traded-companies-sydney) (78)
- [Retail chains in Sydney](https://www.tamtam.ai/l/retail-chains-sydney) (77)
- [Companies with a mobile app in Sydney](https://www.tamtam.ai/l/companies-with-mobile-app-sydney) (64)
- [Critical infrastructure operators in Sydney](https://www.tamtam.ai/l/critical-infrastructure-operators-sydney) (63)
- [Investment Management companies in Sydney](https://www.tamtam.ai/l/investment-management-companies-sydney) (60)
- [Corporate groups and holding companies in Sydney](https://www.tamtam.ai/l/holding-companies-sydney) (57)
- [SaaS companies in Sydney](https://www.tamtam.ai/l/saas-companies-sydney) (51)
- [IT Services and IT Consulting companies in Sydney](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-sydney) (49)
- [Consulting firms in Sydney](https://www.tamtam.ai/l/consulting-firms-sydney) (47)
- [Hotel and hospitality groups in Sydney](https://www.tamtam.ai/l/hospitality-groups-sydney) (41)
- [Subscription businesses in Sydney](https://www.tamtam.ai/l/subscription-businesses-sydney) (40)
- [Education providers in Sydney](https://www.tamtam.ai/l/education-companies-sydney) (39)
- [Healthcare providers in Sydney](https://www.tamtam.ai/l/healthcare-providers-sydney) (37)
- [Manufacturers in Sydney](https://www.tamtam.ai/l/manufacturers-sydney) (36)
- [E-commerce companies in Sydney](https://www.tamtam.ai/l/ecommerce-companies-sydney) (35)
- [Venture capital and private equity firms in Sydney](https://www.tamtam.ai/l/vc-and-private-equity-firms-sydney) (33)
- [Real Estate companies in Sydney](https://www.tamtam.ai/l/real-estate-companies-sydney) (32)
- [Retail companies in Sydney](https://www.tamtam.ai/l/retail-companies-sydney) (32)
- [Software Development companies in Sydney](https://www.tamtam.ai/l/software-development-companies-sydney) (30)

## The same list elsewhere in Australia

- [Public sector organisations in Australia](https://www.tamtam.ai/l/public-sector-organisations-australia) (326)
- [Public sector organisations in Victoria](https://www.tamtam.ai/l/public-sector-organisations-victoria) (97)
- [Public sector organisations in New South Wales](https://www.tamtam.ai/l/public-sector-organisations-new-south-wales) (82)
- [Public sector organisations in Queensland](https://www.tamtam.ai/l/public-sector-organisations-queensland) (59)
- [Public sector organisations in Western Australia](https://www.tamtam.ai/l/public-sector-organisations-western-australia) (37)
- [Public sector organisations in Melbourne](https://www.tamtam.ai/l/public-sector-organisations-melbourne) (36)

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Source: https://www.tamtam.ai/l/public-sector-organisations-sydney