# Gregory Roebuck

> Gregory Roebuck is a Series A investor in Melbourne backing Software and Electronics. See 8 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Location: Melbourne, Australia
- Total investments: 8
- Last investment: Feb 2022
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/greg-roebuck-9a6a372
- X (Twitter): https://twitter.com/gregroebuck
- Website: https://x.com/gregroebuck
- Facebook: https://www.facebook.com/greg.roebuck

Gregory Roebuck is a Series A investor in Melbourne focused on Software and Electronics. Gregory Roebuck is based out of Melbourne, Victoria, and is the Non-Executive Director of SEEK Learning and also serves as Non Executive Chairman of Pentana Solutions. Gregory previously worked at Non-executive Chairman as a Non-executive Chairman. Gregory Roebuck attended R.M.I.T.

## Round sizes

| Stage | Round size |
| --- | --- |
| Series A | $8M–$9.3M |
| Series B | $21M–$26M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 2 | 25% |
| Electronics | 2 | 25% |
| B2B | 1 | 13% |
| Apps | 1 | 13% |
| Mobile | 1 | 13% |

25 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 3 | 38% |
| Series B | 2 | 25% |
| Seed | 1 | 13% |
| Grant | 1 | 13% |
| Series C | 1 | 13% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Australia | 3 | 38% |
| Hong Kong | 1 | 13% |
| United States | 1 | 13% |
| United Kingdom | 1 | 13% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| JET Charge | JET Charge is the way in EV charging infrastructure in Australia. The company offers a range of EV products and services, including domestic and commercial charging installations. | $21.4M | Series B | Feb 15, 2022 |  |
| August Robotics | August Robotics creates robots to automate "dirty, dangerous and dull" workflows across the B2B economy. The company's first robot, Lionel, automates the dull and labour intensive task of floor-marking for the global exhibition industry. Lionel has been used as a critical part of the trade show setup process by the world'slargest exhibition companies in Europe and USA. August Robotics' second robot, Diego, automates the dirty and dangerous task of disinfecting high-traffic public areas, such as hotels, offices and aged care centers, optimizing hygiene and reducing the risks of infection. The company is also working on a number of other robots, each leveraging August Robotics' industry leading proprietary mobile robotics platform, which enables August Robotics to generate new robots for new cases far more quickly and cheaply than other robotics companies. The physical world is ripe for disruption by robots, and August Robotics is leading the charge to do this in the B2B segment | $9.3M | Series A | Sep 10, 2020 |  |
| Chargefox | Chargefox is Australia's ultra-fast charging station network. These stations, which run entirely on renewable energy, are located along key routes around the country. | $15M | Grant | Oct 22, 2018 |  |
| August Robotics | August Robotics creates robots to automate "dirty, dangerous and dull" workflows across the B2B economy. The company's first robot, Lionel, automates the dull and labour intensive task of floor-marking for the global exhibition industry. Lionel has been used as a critical part of the trade show setup process by the world'slargest exhibition companies in Europe and USA. August Robotics' second robot, Diego, automates the dirty and dangerous task of disinfecting high-traffic public areas, such as hotels, offices and aged care centers, optimizing hygiene and reducing the risks of infection. The company is also working on a number of other robots, each leveraging August Robotics' industry leading proprietary mobile robotics platform, which enables August Robotics to generate new robots for new cases far more quickly and cheaply than other robotics companies. The physical world is ripe for disruption by robots, and August Robotics is leading the charge to do this in the B2B segment | $3.7M | Seed | Jun 20, 2018 |  |
| Rokt | ROKT is a software development company that offers e-commerce technology and software solutions to introduce marketing into e-commerce through the transaction moment in order to revolutionize the consumer purchasing experience. The business links consumers and marketers and integrates native advertisements into e-commerce sites' transactionalflows. | $26M | Series B | Jun 13, 2017 |  |
| Healthengine | Launched in 2006, HealthEngine is changing the way that patients access healthcare in Australia. Its world-class platform helps patients navigate Australia’s complex health system, while providing practitioners with technology to improve the patient experience. The platform is accessed via website or smartphone app by over a million Australiansevery month. This has resulted in millions of appointments a year with doctors, dentists, physios, and more. | $18M | Series C | Apr 03, 2017 |  |
| Unlockd | Unlockd is changing the way people use and pay with their digital devices.The revolutionary white label mobile platform is the first to create an “attention” based virtual currency platform. In exchange for viewing relevant ads, content or offers upon unlocking their smartphone, users amass points to redeem on items like mobile credit, premiumentertainment content or loyalty points.They can also complete other in app tasks like taking surveys, downloading apps and viewing videos to generate even more rewards.Unlockd’s unique win-win-win model means partners, whether they be telcos, streaming services or loyalty programs, address customer retention and acquisition while driving new revenue streams and increasing ARPU. Major content and advertising partners including Twitter, Yahoo, MoPub and high profile brands such as McDonalds, British Airways, Doritos and Uber, receive coveted first access to consumers at their most engaged digital moment. Unlockd provides the opportunity to deliver the right content at the right time, resulting in market leading engagement and click through rates. Unlockd’s enterprise grade proprietary technology is tailored to meet industry needs via three product streams:Unlockd Connect targeted specifically at forward thinking mobile operators, with five major markets in operation including in the USA with Sprint Telecom subsidiary Boost Mobile, UK with Tesco Mobile, India with Aircel and Indonesia with AXIS.Unlockd Stream is the ultimate ad funded platform for OTT subscription content providers and launched in 2017 with MTV’s music player MTV Trax. The first and only ad funded model that offers an uninterrupted listening and viewing experience for consumers, Unlockd Stream enables providers to monetise non-paying subscribers Unlockd Loyalty provides a platform for loyalty programs to solve challenges like member engagement & increased frequency of point redemption, contributing to the health of the loyalty program ecosystem. It launched in 2017 with one of Australia’s largest programs, flybuys.The company was founded in Melbourne in 2014 and has strategically located offices in New York, London, Singapore and New Delhi. |  | Series A | Apr 25, 2016 |  |
| Rokt | ROKT is a software development company that offers e-commerce technology and software solutions to introduce marketing into e-commerce through the transaction moment in order to revolutionize the consumer purchasing experience. The business links consumers and marketers and integrates native advertisements into e-commerce sites' transactionalflows. | $8M | Series A | Nov 26, 2013 |  |

8 of 8 investments shown.

## Co-investors
- [Blackbird Ventures](https://shizune.co/investors/profile/blackbird-ventures-australia) — VC Fund, 2 deals together
- [Grok Ventures](https://shizune.co/investors/profile/grok-ventures) — VC Fund, 2 deals together
- [Square Peg Capital](https://shizune.co/investors/profile/square-peg-capital) — VC Fund, 2 deals together
- [Tanarra Capital](https://shizune.co/investors/profile/tanarra-capital) — VC Fund, 2 deals together
- [Alium Capital](https://shizune.co/investors/profile/alium-capital) — VC Fund, 1 deal together
- [Australian Motoring Services](https://shizune.co/investors/profile/australian-motoring-services) — VC Fund, 1 deal together

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## FAQ

### What does Gregory Roebuck invest in?

Gregory Roebuck invests primarily in Software, Electronics and B2B startups, most often at Series A and Series B stage. Most of the 8 investments tracked by Shizune back companies in Australia. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Gregory Roebuck's check size?

Gregory Roebuck typically joins rounds of $8M–$9.3M at Series A and $21M–$26M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Gregory Roebuck participates in.

### When did Gregory Roebuck last invest?

The most recent investment recorded for Gregory Roebuck closed in Feb 2022. Shizune tracks 8 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### 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 Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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