# Mark Gillett

> Mark Gillett is a seed investor backing Software and Collaboration. See 1 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Location: Menlo Park, United States
- Total investments: 1
- Last investment: Jan 2017
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/markgillett
- X (Twitter): http://twitter.com/magillett

Mark Gillett is a seed investor in Menlo Park focused on Software and Collaboration. Mark Gillett re-joined Silver Lake in 2013 after previously serving at the firm from 2009-2011. He is a Managing Director and Chief Operating Partner. Prior to his return to Silver Lake, Mr. Gillett served as Chief Development Officer and Chief Operating Officer for Skype, the global communications platform, driving acceleration of thecompany's growth strategy and leading its integration following Microsoft's acquisition of the business in 2011. Subsequently, as Corporate Vice President at Microsoft, he oversaw the growth of Microsoft's $2.5bn enterprise and consumer communications software and services portfolio, while continuing to lead product innovation and operations for Skype.Prior to joining Skype, Mr. Gillett led value creation for Silver Lake in Europe. He joined the firm from Alvarez & Marsal (A&M), where he was a Managing Director and Partner leading the High Technology, Telecoms and Private Equity practice in Europe. At A&M, he specialized in restructuring and operational diligence, performance improvement and turnaround management of online, consumer and enterprise software and device businesses. While at A&M, he served in interim leadership positions and advisory or operating roles including at Lehman Brothers Holdings International, ADT/Tyco (France), Navigon AG, and iSOFT plc. At A&M, he also led engagements with several leading private equity firms. Mr. Gillett served as a non-executive director for European Directories, a local search and advertising group, through a restructuring, digital transition and sale of the business in 2013. Mr. Gillett is a Fellow of the British Computer Society, a Fellow of the Institute of Directors and Member of the IT Service Management Forum.

## Contacts

5 contacts available for Mark Gillett: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/mark-gillett?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 1 | 100% |
| Collaboration | 1 | 100% |
| Enterprise Software | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Deekit | Deekit is a virtual whiteboard that enables people to collaborate infinitely in real-time using any kind of content. Be it drawing, text, images, anything. | $439K | Seed | Jan 13, 2017 | http://www.deekit.com |

1 of 1 investments shown.

## Co-investors
- [Spring Capital](https://shizune.co/investors/profile/spring-capital-8ce8) — VC Fund, 1 deal together

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## Featured in investor lists
- [Enterprise Software Investors in Estonia](https://shizune.co/investors/enterprise-software-investors-estonia)
- [Enterprise Software Angel Investors in Estonia](https://shizune.co/investors/enterprise-software-angel-investors-estonia)

## FAQ

### What does Mark Gillett invest in?

Mark Gillett invests primarily in Software, Collaboration and Enterprise Software startups, most often at Seed stage. Most of the 1 investments tracked by Shizune back companies in Estonia. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Mark Gillett?

Public channels for Mark Gillett include LinkedIn and X (Twitter). 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.

### When did Mark Gillett last invest?

The most recent investment recorded for Mark Gillett closed in Jan 2017. Shizune tracks 1 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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