Top companies in Sydney

Australia's largest tech hub across SaaS, fintech, and consumer.

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Ranked by current headcount across companies headquartered in Sydney. Refreshed monthly.

1
I work for NSW· Haymarket, Millers Point, Sydney South, Barangaroo, Parliament House, Darling Harbour, Sydney, Dawes Point, The Rocks, New South Wales, Australia
The NSW public sector includes ten departments and many agencies and organisations working together to develop policy and deliver important services such as health, education, housing, transport and infrastructure across NSW.We are over 300,000 dedicated people who share the same values - making a difference, giving back and responding to the future.Read our community guidelines: bit.ly/PD-community-guidelines
- 99.5k employees
- Founded 1983
2
Freelancer.com· Millers Point, Darling Harbour, Sydney, Haymarket, Sydney South, Parliament House, Barangaroo, Dawes Point, The Rocks, New South Wales, Australia
Thirteen-time Webby award-winning Freelancer is the world’s largest freelancing and crowdsourcing marketplace by total number of users and projects posted. More than 85 million registered users have posted over 25 million projects and contests to date in over 4,000 areas as diverse as website development, logo design, marketing, copywriting, astrophysics, aerospace engineering and manufacturing.Freelancer owns Escrow.com, the world's largest online escrow company. Freelancer also owns Loadshift, Australia's largest heavy haulage freight marketplace, with over 800 million kilometers of freight posted since inception. Freelancer Limited is listed on the Australian Securities Exchange under the ticker ASX:FLN and is quoted in the US as FRLCY.
- 94.2k employees
- Founded 2009
3
Commonwealth Bank· Barangaroo, Sydney South, Haymarket, Darling Harbour, Millers Point, Parliament House, Sydney, The Rocks, Dawes Point, New South Wales, Australia
Australia’s leading provider of financial services including retail, premium, business and institutional banking, funds management, superannuation, insurance, investment and sharebroking products and services. We are a business with more than 800,000 shareholders and over 52,000 employees. We offer a full range of financial services to help all Australians build and manage their finances.Connect with us, we'd like to hear from you:facebook.com/commonwealthbanktwitter.com/commbankyoutube.com/commbankyoutube.com/commbankbusinessinstagram.com/commbankOur Community Guidelines can be found at:https://www.commbank.com.au/support/social-networks.htmlFor information on our Privacy Policy visit https://www.commbank.com.au/support/privacy
- Post-IPO debt
- 48.1k employees
- Founded 1911
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4
NSW Department of Education· Sydney, New South Wales, Australia
At the NSW Department of Education, our goal is to be Australia's best education system and one of the finest in the world. We prepare young people for rewarding lives as engaged citizens in a complex and dynamic society.With nearly 100,000 employees working in schools and offices throughout the state, we can offer you a varied and rewarding career in your chosen field. Working with us gives you access to:- flexible working conditions- attractive salaries- generous holidays- opportunities for advancement- a culture of professional supportBy supporting every one of our employees to meet their personal goals at work, we can best meet NSW's goals for quality public education.Follow us on Twitter: @NSWEducation
- 40.9k employees
5
Worley· Millers Point, Darling Harbour, Sydney, Haymarket, Sydney South, Parliament House, Barangaroo, Dawes Point, The Rocks, New South Wales, Australia
Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia. We’re bridging two worlds, accelerating the shift to more sustainable energy sources, while helping our customers provide the energy, chemicals and resources society needs now.We partner with customers to deliver projects and create value across the life of their asset portfolios. From consulting and engineering to installation, commissioning, decommissioning and remediation, we provide integrated, data-centric solutions that help solve complex challenges, including those in renewable energy, energy storage, and carbon capture, utilization and storage (CCUS).
- Debt
- 37.4k employees
- Founded 1971

6
Telstra· Haymarket, Millers Point, Sydney South, Barangaroo, Parliament House, Darling Harbour, Sydney, Dawes Point, The Rocks, New South Wales, Australia
We believe it’s people who give purpose to our technology. So we’re committed to staying close to our customers and providing them the best experience. And delivering the best tech. On the best network. Because our purpose is to build a connected future so everyone can thrive.We build technology and content solutions that are simple and easy to use, including Australia’s largest and fastest national mobile network.That’s why we strive to serve and know our customers better than anyone else – offering a choice of not just digital connection, but digital content as well. And that’s why we have an international presence spanning 15 countries, including China.In the 21st century, opportunity belongs to connected businesses, governments, communities and individuals.As Australia’s leading telecommunications and information services company, Telstra is proud to be helping our customers improve the ways in which they live and work through connection.Be first to know about Telstra news, advice and offers, as well as updates on our people and partners: tel.st/subscribe
- Post-IPO debt
- 35.4k employees
- Founded 1901
7
Macquarie Group· Millers Point, Darling Harbour, Sydney, Haymarket, Sydney South, Parliament House, Barangaroo, Dawes Point, The Rocks, New South Wales, Australia
At Macquarie, we empower people to innovate and invest for a better future. We are a global financial services organisation with Australian heritage, operating in 30 markets. To find out more, visit us at www.macquarie.com To read our social media disclaimer, visit macq.co/SocialMediaDisclaimer
- Debt
- 20.8k employees
- Founded 1969
8
University of Sydney· The University Of Sydney, New South Wales, Australia
As the first university to be established in Australasia, the University of Sydney consistently ranks as one of Australia’s top universities. We aim to create and sustain a university that will, for the benefit of both Australia and the wider world, maximise the potential of the brightest researchers and most promising students, whatever their social or cultural background.Facebook: facebook.com/sydneyuniInstagram: @sydney_uniYouTube: youtube.com/uniofsydneyCRICOS: 00026ATEQSA: PRV12057
- Grant
- 20.6k employees
9
Qantas· Sydney International Airport, Sydney Domestic Airport, Mascot, New South Wales, Australia
We would like to acknowledge the Traditional Custodians of the local lands and waterways on which we live, work and fly. We pay our respects to Elders past and present. Spirit is everything to us, and joining the Qantas team means bringing your spirit to ours. We have over 30,000 exceptional employees, and every year we fly millions of customers around Australia and the world – together. If you hop on board with the team, you'll experience a workplace where creativity, diversity and innovation are encouraged. We aim to give every member of the Qantas Group the support to follow their dreams, face new challenges, and let their future take flight. Ultimately, people are our priority – those who work for us and those who travel with us. Recruitment scam alert: We're aware of scammers posing as Qantas Group recruiters. We'll only contact candidates via official Qantas Group channels and company email addresses. Don't share personal details or documents unless you're confident it's genuine. Learn more or report a scam: https://www.qantas.com/en-au/help/cyber-safety-scamsMember of the oneworld Alliance.Please read the Qantas LinkedIn House Rules at http://bit.ly/QFhouserules
- Post-IPO debt
- 18.1k employees
- Founded 1920
10
UNSW· Unsw Sydney, New South Wales, Australia
The University of New South Wales (UNSW) is one of Australia's leading research and teaching universities. Established in 1949, UNSW has expanded rapidly and now has more than 52,000 students, including more than 14,000 international students from over 130 different countries. UNSW offers more than 300 undergraduate and 600 postgraduate programs, and has developed an extensive network of alumni chapters throughout Asia.UNSW is a founding member of the prestigious Group of Eight research intensive universities in Australia and a member of the Universitas 21 international consortium.The main UNSW campus is located on a 38-hectare site at Kensington, in Sydney. Other campuses are UNSW Art and Design (Paddington), UNSW Canberra (Canberra City and Australian Defence Force Academy), and sub-campuses at Randwick and Coogee, as well as research stations around NSW. We believe in academic freedom, so posts do not necessarily represent official UNSW views. Read our Social Media Terms of Service at www.unsw.to/smUNSW Sydney CRICOS no.00098Gfacebook.com/unswtwitter.com/unswinstagram.com/unswyoutube.com/unsw
- Grant
- 18.1k employees
- Founded 1949

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Find engineers and operators at companies in Sydney

Sydney is one of the densest markets for technology talent in the world. The list above ranks the largest companies headquartered in Sydney by current headcount, drawn from public LinkedIn and Crunchbase records. With 4,878 matching companies in Refolk’s index, the depth of engineers, designers, product managers, and founders is broad across stages and industries.

Hiring in Sydney usually means hiring out of these companies. The biggest names anchor the talent pool - every senior engineer in Sydney likely has at least one of them on their resume - and the fast-growing ones generate the most movement.

Refolk lets you reach into this pool with plain English. Ask for “senior backend engineers in Sydney who’ve shipped at scale” or “founders in Sydney who left in the last year” and Refolk returns a ranked shortlist with the evidence behind each match.

How this list is built

Refolk pulled the largest companies headquartered in Sydney from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 25 employees. The list refreshes monthly.

Last refreshed: Fri, 16 Oct 2026 03:15:23 GMT

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How is this ranking built?

The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

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