Ellerston Capital
VC Fund
Sydney, Australia
Ellerston Capital is a VC fund in Sydney focused on Software and Information Technology. Ellerston Capital specialises in equity strategies. Today, they have over $5.1 billion in funds under management (as at 28 February 2017) – including separately managed accounts (SMAs), wholesale funds and retail offerings for a range of financial advisers, institutions and individual investors.As a dedicated investment manager, they aim to doone thing exceptionally well: grow and protect their clients’ wealth through investing. They are passionate about creating value for their clients by identifying outstanding stocks and designing portfolios that perform over the long term.
- Total investments:
- 47
- Last investment:
- Lead investor:
- 55%
- Last fund:
Last updated:
For AI agents: llms.txt
Industries Ellerston Capital invests in
Stages Ellerston Capital invests in
Countries Ellerston Capital invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Round size
- Seed
- $850k–$16M
- Series A
- $2.6M–$23M
- Venture - Series Unknown
- $2.7M–$35M
Investment Focus
Industry
- Software 8 (17%)
- Information Technology 8 (17%)
- E-Commerce 5 (11%)
- Internet 4 (9%)
- Health Care 3 (6%)
Stage
- Venture - Series Unknown 8 (17%)
- Seed 6 (13%)
- Series A 6 (13%)
- Funding Round 6 (13%)
- Series B 4 (9%)
Country
- Australia 29 (62%)
- Hong Kong 1 (2%)
- Singapore 1 (2%)
- United States 1 (2%)
- United Kingdom 1 (2%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
|
Ashok Jacob
Founder , Chairman & Chief Investment Officer
|
Founder , Chairman & Chief Investment Officer | Total investments: 4 | Find email | |
|
Brian O'Sullivan
Founder
|
Founder | Total investments: 0 | Find email | |
Chris Kourtis
Founder
|
Founder | Total investments: 0 | Find email | |
David Leslie
Investment Director
|
Investment Director | Total investments: 5 | Find email | |
Justin Diddams
Senior Investment Analyst
|
Senior Investment Analyst | Total investments: 1 | Find email |
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Firmus Technologies creates the most efficient AI infrastructure: AI Factories designed to operate at the max-q of AI token generation and profitability. With advanced liquid-everywhere data center technology at its core, Firmus innovates across all layers of the AI Factory, from energy grid management and thermal innovations to GPU and networkingtelemetry and control. This holistic approach creates AI Factories that operate at peak efficiency, delivering high uptime, throughput, and profitability with future-proofed designs.At the heart of this infrastructure is AI FactoryOS, Firmus’ pioneering operating system that integrates data intelligence and control across the physical AI Factory.SMC, Firmus' AI-native cloud platform, leverages SHARP-enabled networking and NCP reference architecture, benefiting from the efficiency of our AI Factory infrastructure. SMC empowers customers to train faster, deploy smarter, and scale globally, while maximizing the value of every token generated. | $2B / Private Equity / Aug 07, 2026 | ||
| Firmus Technologies creates the most efficient AI infrastructure: AI Factories designed to operate at the max-q of AI token generation and profitability. With advanced liquid-everywhere data center technology at its core, Firmus innovates across all layers of the AI Factory, from energy grid management and thermal innovations to GPU and networkingtelemetry and control. This holistic approach creates AI Factories that operate at peak efficiency, delivering high uptime, throughput, and profitability with future-proofed designs.At the heart of this infrastructure is AI FactoryOS, Firmus’ pioneering operating system that integrates data intelligence and control across the physical AI Factory.SMC, Firmus' AI-native cloud platform, leverages SHARP-enabled networking and NCP reference architecture, benefiting from the efficiency of our AI Factory infrastructure. SMC empowers customers to train faster, deploy smarter, and scale globally, while maximizing the value of every token generated. | $326.6M / Private Equity / Nov 14, 2025 | ||
| Firmus Technologies creates the most efficient AI infrastructure: AI Factories designed to operate at the max-q of AI token generation and profitability. With advanced liquid-everywhere data center technology at its core, Firmus innovates across all layers of the AI Factory, from energy grid management and thermal innovations to GPU and networkingtelemetry and control. This holistic approach creates AI Factories that operate at peak efficiency, delivering high uptime, throughput, and profitability with future-proofed designs.At the heart of this infrastructure is AI FactoryOS, Firmus’ pioneering operating system that integrates data intelligence and control across the physical AI Factory.SMC, Firmus' AI-native cloud platform, leverages SHARP-enabled networking and NCP reference architecture, benefiting from the efficiency of our AI Factory infrastructure. SMC empowers customers to train faster, deploy smarter, and scale globally, while maximizing the value of every token generated. | $220.7M / Private Equity / Sep 16, 2025 | ||
| Sleek makes the lives of entrepreneurs and investors easier.They incorporate companies in Singapore & Hong Kong, and help them manage their governance, accounting and tax matters using technology. They launched their services in Singapore in May 2017 because they were frustrated at how slow and paper-based the incorporation and companyregistration process was.Since their launch, they have incorporated hundreds of happy companies, offering 100% digital incorporation, company secretary, and accounting services in Singapore and Hong Kong. | $23M / Series B / Jun 10, 2025 | ||
| EcoJoule Energy provides innovative, next-generation power management products and software. | $15M / Mar 10, 2025 | ||
| BCAL Diagnostics is a biotechnology company that focuses on the detection of women’s health issues. | $10.5M / Post-IPO Equity / Jun 03, 2024 | ||
| Carmichael Homes is a real estate company that provides a wide range of newly designed and built living spaces. | $23.2M / Series A / May 14, 2024 | ||
| Aerologix is a platform for drone aerial Vision. Aerologix uses a patented algorithm and geolocation to match clients with skilled and qualified drone pilots in Australia.Its main aims to provide seamless access to on-demand drone vision to anyone using Any Drone Anywhere. | $1.3M / Seed / Nov 20, 2023 | ||
| BiomeBank is a clinical stage biotechnology company developing microbial therapies to treat unmet medical need globally, with an immediate focus on the APAC region. We currently manufacture a microbial therapy to treat Clostridoides difficile, a potentially life threatening infection, and are positioning the drug product for multiple indications.Furthermore, we are actively developing second generation therapies in multiple diseases, including Ulcerative Colitis and Crohn's Disease. | $7.3M / Venture - Series Unknown / Dec 08, 2022 | ||
| Internet 2.0 specializes in cyber security, intelligence, cloud, cyber defense, Encryption, ransomware, malware, and cyber consulting. | $5M / Seed / Sep 13, 2022 | ||
| See all 47 investments → | |||
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FAQ
What does Ellerston Capital invest in?
Ellerston Capital invests primarily in Software, Information Technology and E-Commerce startups, most often at Venture - Series Unknown and Seed stage. Most of the 47 investments tracked by Shizune back companies in Australia. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What round sizes does Ellerston Capital invest in?
Ellerston Capital typically joins rounds of $850k–$16M at Seed, $2.6M–$23M at Series A and $2.7M–$35M at Venture - Series Unknown. These are whole funding-round sizes, not Ellerston Capital's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds Ellerston Capital took part in.
How do I contact Ellerston Capital?
Public channels for Ellerston Capital include LinkedIn and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at Ellerston Capital?
The team at Ellerston Capital includes Ashok Jacob (Founder , Chairman & Chief Investment Officer), Brian O'Sullivan (Founder) and Chris Kourtis (Founder). The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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