# Michael Coates

> Michael Coates is a seed investor backing Software and Security. See 10 investments, round sizes, portfolio and contact details. Updated Oct 2026.

- Type: Angel Investor
- Location: San Francisco, United States
- Total investments: 10
- Last investment: Oct 2025
- Lead investor: 0%
- Last updated: Oct 2026
- LinkedIn: http://www.linkedin.com/in/mcoates
- X (Twitter): http://twitter.com/_mwc
- Website: https://michaelcoates.co/c/cybersecurity-investor

Michael Coates is a seed investor in San Francisco focused on Software and Security. Michael Coates is the Chief Operating Officer & Chief Information Security Officer of CoinList. He was previously the a co-Founder and CEO of Altitude Networks a (acquired by CoinList). Michael manages an angel fund focusing on early stage cybersecurity companies. Michael's background includes roles such as CISO of Twitter, Head ofSecurity Mozilla, OWASP Chairman.Michael Coates attended the University of Illinois Urbana-Champaign.

## Contacts

5 contacts available for Michael Coates: 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/michael-coates?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 5 | 50% |
| Security | 4 | 40% |
| Cyber Security | 4 | 40% |
| Information Technology | 3 | 30% |
| B2B | 1 | 10% |

13 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 7 | 70% |
| Pre-Seed | 1 | 10% |
| Series A | 1 | 10% |
| Series B | 1 | 10% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 7 | 70% |
| Israel | 2 | 20% |
| United Kingdom | 1 | 10% |

## Investments

| Company | Description | Round size | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Defakto Security | Defakto secures the next era of automation with the only complete Non-Human IAM platform, purpose-built for end-to-end NHI lifecycle management. By eliminating static secrets and overprivileged accounts, Defakto helps enterprises reduce breach risk, simplify compliance, and scale automation with confidence. Trusted by Global 2000 companies, Defaktowas founded by leaders in large-scale identity deployments. The platform secures every automated interaction across workloads, pipelines, multi-cloud environments, and AI agents. | $30.8M | Series B | Oct 21, 2025 | https://www.defakto.security |
| Kenzo Security | Kenzo Security operates as an agentic security platform that modernizes all functions of security operation teams. | $4.5M | Seed | Apr 21, 2025 | https://www.kenzo.security/ |
| Noma Security | Noma is an security technology platform that helps to the secure management of data and AI lifecycles. | $7M | Seed | Jan 01, 2024 | https://noma.security |
| Klarytee | Klarytee provides secure document data, maintain access control, prevent data loss, non-repudiation, integrated workflows, real-time audit, manage document interactions, granular access control, and data protection services. | $881.6K | Pre-Seed | Dec 05, 2023 | https://www.klarytee.com |
| Resourcely | Resourcely lets you provision resource templates that are secure and compliant by design. | $8.3M | Seed | Jul 07, 2022 | https://www.resourcely.io/ |
| Fletch | Fletch is democratizing cybersecurity analytics by creating ready to go apps like the Fletch Trending Threats app that literally reads the threat news for companies daily telling them the threats that matter daily. | $12.6M | Series A | Apr 01, 2022 | https://fletch.ai/ |
| Cider Security | Cider Security is an AppSec Operating System that provides Security and Engineering teams a single, consistent method to orchestrate and implement end-to-end CI/CD security through a single, unified platform. The company takes a holistic approach to the security of the engineering processes and systems, from code to deployment. It establishesa comprehensive Technical DNA of the engineering environment, giving Security teams the transparency and visibility needed to optimize AppSec and achieve full resilience. Founded in late 2020 by cybersecurity industry veterans, Guy Flechter and Daniel Krivelevich, Cider Security’s mission is to solve the most commonly encountered challenges CISOs and security engineers face today. | $6M | Seed | Mar 07, 2022 | https://cidersecurity.io/ |
| Lucidum | Lucidum is the asset discovery company that eliminates blind spots across cloud, security and IT operations. Fortune 500 companies rely on the Lucidum platform and its patent-pending machine learning to discover, triangulate and identify all assets – even previously unknown unknowns – delivering visibility essential to truly secure, manage, andtransform your enterprise. Backed by GGV Capital and Silicon Valley CISO Investors (SVCI), Lucidum is based in San Jose, California. |  | Seed | Jun 30, 2021 | https://www.lucidum.io/ |
| ProjectDiscovery | ProjectDiscovery is an open-source software company that simplifies security operations for engineers and developers. Its user base is among the largest in the InfoSec community, and they are used by security and developer teams at top internet companies such as Fastly, Microsoft, CloudFlare, Gitlab, Facebook, IBM, and many others. | $1.7M | Seed | Feb 08, 2021 | https://projectdiscovery.io |
| Mammoth Cyber | Mammoth Cyber provides Computer and Network Security. | $7.7M | Seed | Jan 01, 2021 | https://mammothcyber.com |

10 of 10 investments shown.

## Co-investors
- [Accel](https://shizune.co/investors/profile/accel) — VC Fund, 2 deals together
- [Glilot Capital Partners](https://shizune.co/investors/profile/glilot-capital-partners) — VC Fund, 2 deals together
- [The General Partnership](https://shizune.co/investors/profile/the-general-partnership) — VC Fund, 2 deals together
- [500 Global](https://shizune.co/investors/profile/500-startups) — VC Fund, 1 deal together
- [Adverb Ventures](https://shizune.co/investors/profile/adverb-ventures) — VC Fund, 1 deal together
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund, 1 deal together

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### Similar stage
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## Featured in investor lists
- [Consumer Angel Investors in Israel](https://shizune.co/investors/consumer-angel-investors-israel)

## FAQ

### What does Michael Coates invest in?

Michael Coates invests primarily in Software, Security and Cyber Security startups, most often at Seed and Pre-Seed stage. Most of the 10 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Michael Coates?

Public channels for Michael Coates include LinkedIn, X (Twitter) 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.

### When did Michael Coates last invest?

The most recent investment recorded for Michael Coates closed in Oct 2025. Shizune tracks 10 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 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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