# 30 leading companies with a mobile app in Sydney

Tamtam tracks 64 companies with a mobile app headquartered in Sydney. This list ranks the 30 largest by number of employees on LinkedIn, led by Freelancer.com, Commonwealth Bank and Telstra. Their median headcount is 1,835. Half of them were founded in 1985 or later.

This selection of large companies in Sydney with a mobile app includes major players in finance, technology, and telecommunications. Commonwealth Bank, Westpac, and St.George Bank are prominent financial service providers. Telstra focuses on telecommunications and technology, while Freelancer.com connects users with projects globally. Atlassian develops collaboration tools like Jira and Trello.

The companies span various sectors including media with News Corp Australia and Seven Network, energy with Origin Energy, and food services with Hungry Jack's. A notable pattern is the strong presence of established Australian institutions, many founded in the early to mid-20th century, alongside more recent technology firms like Freelancer.com (2009) and Atlassian (2002).

🇦🇺 Sydney · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Freelancer.com](https://www.tamtam.ai/c/freelancer-com) (freelancer.com)<br>Connecting millions of users worldwide with projects in diverse fields, offering secure payments and specialized freight services. | Technology, Information and Internet | 🇦🇺 Sydney | 91,305 | 2009 |
| 2 | [Commonwealth Bank](https://www.tamtam.ai/c/commonwealth-bank) (commbank.com.au)<br>Leading provider of financial services in Australia, offering banking, funds management, insurance, investment, and sharebroking products to help individuals manage their finances | Financial Services | 🇦🇺 Sydney | 47,706 |  |
| 3 | [Telstra](https://www.tamtam.ai/c/telstra) (telstra.com.au)<br>Providing technology and content solutions for a connected future, with a focus on customer experience and Australia's largest mobile network | Telecommunications | 🇦🇺 Sydney | 35,493 | 1901 |
| 4 | [Atlassian](https://www.tamtam.ai/c/atlassian) (atlassian.com)<br>A global team creating tools like Jira, Confluence, Bitbucket, and Trello to empower teams worldwide to collaborate effectively and innovate | Software Development | 🇦🇺 Sydney | 21,044 | 2002 |
| 5 | [Westpac](https://www.tamtam.ai/c/westpac) (westpac.com.au)<br>A major banking institution in Australia and New Zealand, offering a wide range of financial services globally with a focus on customer prosperity | Banking | 🇦🇺 Sydney | 16,224 | 1817 |
| 6 | [Westpac Group](https://www.tamtam.ai/c/westpac-group) (westpac.com.au)<br>Leading financial institution offering banking, wealth management, and customer-focused services across Australia, Asia, UK, and the US. | Financial Services | 🇦🇺 Sydney | 14,973 |  |
| 7 | [Hungry Jack's® Pty Ltd](https://www.tamtam.ai/c/hungry-jack-s-pty-ltd) (hungryjacks.com.au)<br>Operating over 440 restaurants across Australia, serving millions weekly, employing thousands, specializing in Australian beef patties and fast food. | Food and Beverage Services | 🇦🇺 Sydney | 6,695 | 1971 |
| 8 | [Origin Energy](https://www.tamtam.ai/c/origin-energy) (originenergy.com.au)<br>Leading Australian energy company providing electricity, natural gas, solar, and LPG while focusing on affordability, sustainability, and carbon emissions reduction. | Utilities | 🇦🇺 Sydney | 6,250 | 2000 |
| 9 | [St.George Bank](https://www.tamtam.ai/c/st-george-bank) (stgeorge.com.au)<br>Provides retail and business banking services to over 2.6 million customers with extensive branch network and specialist financial advice. | Banking | 🇦🇺 Sydney | 3,327 |  |
| 10 | [News Corp Australia](https://www.tamtam.ai/c/news-corp-australia) (newscorpaustralia.com)<br>Leading Australian media company delivering news, sport, lifestyle content across multiple platforms to 18 million Australians monthly. | Media Production | 🇦🇺 Sydney | 2,708 | 1923 |
| 11 | [Hudson](https://www.tamtam.ai/c/hudson-sydney) (au.hudson.com)<br>We specialize in matching individuals with the right roles, providing talent solutions across the employee lifecycle to drive business success and transform lives | Staffing and Recruiting | 🇦🇺 Sydney | 2,664 | 1985 |
| 12 | [EML Group](https://www.tamtam.ai/c/eml-group) (eml.com.au)<br>Specialists in work health and safety, offering tailored injury prevention, claims management, and return-to-work support for businesses and injured workers | Insurance | 🇦🇺 Sydney | 2,474 |  |
| 13 | [Seven Network](https://www.tamtam.ai/c/seven-network) (7plus.com.au)<br>Part of a prominent Australian media group, this network provides extensive broadcast television, audio, publishing, and digital content, reaching millions monthly with news, sports, and entertainment. | Broadcast Media Production and Distribution | 🇦🇺 Sydney | 1,995 |  |
| 14 | [Rest](https://www.tamtam.ai/c/rest) (rest.com.au)<br>providing low-fee superannuation services to Australians, focusing on competitive long-term returns and returning profits to members | Financial Services | 🇦🇺 Sydney | 1,883 | 1988 |
| 15 | [Employment Hero](https://www.tamtam.ai/c/employment-hero) (employmenthero.com)<br>all-in-one platform supporting recruitment, HR, compliance, and payroll to help businesses manage and empower their employees effectively | Human Resources Services | 🇦🇺 Sydney | 1,835 | 2014 |
| 16 | [City of Sydney](https://www.tamtam.ai/c/city-of-sydney) (cityofsydney.nsw.gov.au)<br>Local government authority responsible for CBD and surrounding areas Focus on sustainable development, environmental initiatives, and fostering economy, society, and culture | Government Administration | 🇦🇺 Sydney | 1,805 |  |
| 17 | [Southern Cross Austereo](https://www.tamtam.ai/c/southern-cross-austereo) (sca.com.au)<br>Australian media company operating radio networks, digital audio app LiSTNR, offering live sports, music playlists, news, and podcasts nationwide. | Broadcast Media Production and Distribution | 🇦🇺 Sydney | 1,799 | 1980 |
| 18 | [ING Australia](https://www.tamtam.ai/c/ing-australia) (ing.com.au)<br>This company is a part of the ING Group, offering simple and value-driven banking products, 24/7 customer support, and a focus on improving customer's lives | Banking | 🇦🇺 Sydney | 1,768 | 1999 |
| 19 | [Aussie](https://www.tamtam.ai/c/aussie) (aussie.com.au)<br>Aussie Home Loans revolutionized the Australian mortgage market, helping over a million Australians achieve their home ownership dreams through personalized guidance and industry recognition | Financial Services | 🇦🇺 Sydney | 1,731 | 1992 |
| 20 | [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 |
| 21 | [HCF Australia](https://www.tamtam.ai/c/hcf-australia) (hcf.com.au)<br>A leading Australian not-for-profit health fund providing quality cover and healthcare solutions, prioritizing member care, innovation, and employee well-being | Insurance | 🇦🇺 Sydney | 1,620 | 1932 |
| 22 | [Aware Super](https://www.tamtam.ai/c/aware-super) (aware.com.au)<br>Management of superannuation savings with a focus on community impact, sustainability, and delivering strong long-term financial returns. | Financial Services | 🇦🇺 Sydney | 1,596 | 1992 |
| 23 | [Colonial First State](https://www.tamtam.ai/c/colonial-first-state) (cfs.com.au)<br>provides superannuation, investment, and retirement products with expertise in Australian and global shares, property, fixed interest, and alternative assets | Financial Services | 🇦🇺 Sydney | 1,523 |  |
| 24 | [HOYTS Group](https://www.tamtam.ai/c/hoyts-group) (hoyts.com.au)<br>A leading entertainment company with over 400 screens, HOYTS offers innovative cinema experiences, including recliners, DOLBY ATMOS, dine-in options, and immersive candy bar experiences | Entertainment Providers | 🇦🇺 Sydney | 1,305 | 1909 |
| 25 | [Ubank](https://www.tamtam.ai/c/ubank) (ubank.com.au)<br>digital platform providing real-time financial insights, spending tracking, and saving tools to help users manage money and achieve financial goals. | Financial Services | 🇦🇺 Sydney | 914 |  |
| 26 | [Blacktown City Council](https://www.tamtam.ai/c/blacktown-city-council) (blacktown.nsw.gov.au)<br>Local government organization in Western Sydney with a diverse and growing population, focused on providing equitable workplace opportunities and promoting organizational values | Government Administration | 🇦🇺 Sydney | 911 | 1906 |
| 27 | [Servcorp](https://www.tamtam.ai/c/servcorp) (servcorp.com)<br>Servcorp offers flexible workspace solutions including hot desks, dedicated desks, virtual offices, and office spaces in over 150 locations worldwide | Real Estate | 🇦🇺 Sydney | 880 | 1978 |
| 28 | [Zambrero](https://www.tamtam.ai/c/zambrero) (zambrero.com.au)<br>A global Mexican restaurant franchise that serves healthy food and donates a meal for every purchase to fight world hunger | Restaurants | 🇦🇺 Sydney | 870 | 2005 |
| 29 | [Event Cinemas](https://www.tamtam.ai/c/event-cinemas) (eventcinemas.com.au)<br>Creates innovative cinema experiences with luxury options like Gold Class, designer Event Boutique, immersive 4DX, and rewards program Cinebuzz for valued customers | Entertainment Providers | 🇦🇺 Sydney | 782 | 1910 |
| 30 | [Superloop](https://www.tamtam.ai/c/superloop) (superloop.com)<br>Superloop unleashes the possibilities of the internet with carrier-grade networks, providing high-performance connectivity services for residential customers, businesses, and corporations in Australia | Telecommunications | 🇦🇺 Sydney | 771 | 2014 |

## 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.

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- [Companies with a mobile app in Melbourne](https://www.tamtam.ai/l/companies-with-mobile-app-melbourne) (44)

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Source: https://www.tamtam.ai/l/companies-with-mobile-app-sydney