# John Scull

> John Scull is a Series B investor at Southern Cross Venture Partners backing Software and Wireless. See 4 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Southern Cross Venture Partners](https://shizune.co/investors/profile/southern-cross-venture-partners)
- Location: San Francisco, United States
- Total investments: 4
- Last investment: Aug 2011
- Lead investor: 50%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/joscull/

John Scull is a co-founding Managing Director of Southern Cross Venture Partners and is based in Silicon Valley. Previously, he was a Venture Partner and member of the investment committee of the venture capital firm Allen & Buckeridge. As an active board member and investor, he brings a wealth of operational experience to the management andboard of an investee company, helping build their management teams, define their strategy and improve their sales and business development efforts, secure follow-on funding and even helping them transition their operations and headquarters to the United States if required. He is or was a Board of Director member of the following portfolio companies: Aurema (acquired by Citrix), Brandscreen, (acquired by Jersey Telecom), Effective Measure, Virsto, Fultec Semiconductor (acquired by Bourns), Liaise, VaST Systems (acquired by Synopsys), Wedgetail/Vintela (acquired by Quest), Xumii (acquired by Myriad).Prior to becoming a venture capitalist, John had a successful 20-year operational career with leading edge technology companies primarily in Silicon Valley. He has been the CEO of two successful venture backed software companies (Macromind, which merged to form Macromedia (MACR) and PF.Magic, which was successfully sold to The Learning Company). John was also an innovative marketing executive at Apple Computer, where he helped launch the Macintosh personal computer and then started and grew the company's Desktop Publishing business to over US$1B in revenues.John Scull holds an MBA from Harvard University and a bachelor degree from the University of Oklahoma.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 2 | 50% |
| Wireless | 1 | 25% |
| Semiconductor | 1 | 25% |
| Virtualization | 1 | 25% |
| Cloud Computing | 1 | 25% |

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series B | 1 | 25% |
| Series C | 1 | 25% |
| Series D | 1 | 25% |
| Series E | 1 | 25% |
| Private Equity | 1 | 25% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Virsto Software | Virsto was founded in late 2007 by a team of storage and virtualization experts who saw that the old ways of doing storage were not working in the virtual server era. We believe we are building a visionary storage software platform that will fundamentally transform the data center – decoupling storage from the physical world once and for all tosave organizations time and money. Virsto's solutions address the growing need for cost-effective and efficient storage for virtual servers and desktops. Companies around the world use Virsto to achieve increases in performance, reduce storage capital and operating costs, and streamline provisioning and data management for virtual computing. | $5M | Series B | Aug 25, 2011 |  |
| Quantenna Communications | Quantenna specializes in providing Wi-Fi solutions. Founded in 2006, Quantenna has demonstrated its leadership in Wi-Fi technologies with many industry firsts in the market. Quantenna continues to innovate with the mission to perfect Wi-Fi by establishing benchmarks for speed, range, efficiency, and reliability. Quantenna takes a multidimensionalapproach, from silicon, a system to software for Wi-Fi networks, and provides solutions for OEMs and service providers worldwide. | $21M | Series E | Sep 27, 2010 |  |
| Quantenna Communications | Quantenna specializes in providing Wi-Fi solutions. Founded in 2006, Quantenna has demonstrated its leadership in Wi-Fi technologies with many industry firsts in the market. Quantenna continues to innovate with the mission to perfect Wi-Fi by establishing benchmarks for speed, range, efficiency, and reliability. Quantenna takes a multidimensionalapproach, from silicon, a system to software for Wi-Fi networks, and provides solutions for OEMs and service providers worldwide. | $15M | Series D | Feb 14, 2010 |  |
| Quantenna Communications | Quantenna specializes in providing Wi-Fi solutions. Founded in 2006, Quantenna has demonstrated its leadership in Wi-Fi technologies with many industry firsts in the market. Quantenna continues to innovate with the mission to perfect Wi-Fi by establishing benchmarks for speed, range, efficiency, and reliability. Quantenna takes a multidimensionalapproach, from silicon, a system to software for Wi-Fi networks, and provides solutions for OEMs and service providers worldwide. | $14M | Series C | Apr 29, 2009 |  |

4 of 4 investments shown.

## Co-investors
- [Grazia Equity](https://shizune.co/investors/profile/grazia-equity) — VC Fund, 3 deals together
- [Venrock](https://shizune.co/investors/profile/venrock) — VC Fund, 3 deals together
- [August Capital](https://shizune.co/investors/profile/august-capital) — VC Fund, 1 deal together
- [Canaan Partners](https://shizune.co/investors/profile/canaan-partners) — VC Fund, 1 deal together
- [DAG Ventures](https://shizune.co/investors/profile/dag-ventures) — VC Fund, 1 deal together
- [Sequoia Capital](https://shizune.co/investors/profile/sequoia-capital) — VC Fund, 1 deal together

## About Southern Cross Venture Partners

VC Fund · North Sydney, Australia

Southern Cross Venture Partners was launched in 2006 by veteran venture capitalists who have managed and operated companies themselves. Southern Cross Venture Partners assist early stage technology companies that demonstrate the potential for exceptional growth and market leadership build significant businesses. The founding principle of SouthernCross is partnership -- they are passionately committed to doing everything they can to help their portfolio companies succeed. Their team has a strong record of utilizing their start-up and management experience, industry knowledge, network of business/customer relationships, and recruiting skills to assist in building significant shareholder value.Southern Cross is currently investing in companies that fit their investment criteria. They prefer to act as lead or co-lead in the early stages where they have experience that can help build value rapidly. They do not have a minimum investment amount, however, a typical initial investment will be $2 million to $5 million with an ability to invest more money in later rounds.

5 contacts available at Southern Cross Venture Partners.

| Name | Title | Profile |
| --- | --- | --- |
| John Scull | Managing Director | https://shizune.co/investors/profile/john-scull |
| Anneliese Bisson | Chief Financial Officer | https://shizune.co/investors/profile/anneliese-bisson |
| Bob Christiansen | Founding Managing Director | https://shizune.co/investors/profile/bob-christiansen |
| Frank Foster | Venture Partner | https://shizune.co/investors/profile/frank-foster |
| Gareth Dando | Managing Director | https://shizune.co/investors/profile/gareth-dando |

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- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund
- [FJ Labs](https://shizune.co/investors/profile/fj-labs) — VC Fund

## FAQ

### What does John Scull invest in?

John Scull invests primarily in Software, Wireless and Semiconductor startups, most often at Series B and Series C stage. Most of the 4 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did John Scull last invest?

The most recent investment recorded for John Scull closed in Aug 2011. Shizune tracks 4 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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