Scott McNealy
Angel Investor @ Flume Ventures
New York, United States
Scott McNealy is a seed investor at Flume Ventures in New York focused on Software and Analytics. Scott McNealy is the co-founder of Sun Microsystems, the company behind Java and the network computing innovations that helped shape the modern internet. Under his leadership, Sun became one of the most influential technology companies of its era. Scott has mentored numerous CEOs and industry leaders, with Sun alumni going on to lead companies such as Microsoft, Google, and NVIDIA. He now serves as a Partner at Flume Ventures.
- Total investments:
- 27
- Last investment:
- Lead investor:
- 7%
Last updated:
For AI agents: llms.txt
Industries Scott McNealy invests in
Stages Scott McNealy invests in
Countries Scott McNealy invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $950k–$40M
- Series A
- $6M–$100M
- Series B
- $15M–$234M
Investment Focus
Industry
- Software 9 (33%)
- Analytics 4 (15%)
- Machine Learning 4 (15%)
- Information Technology 4 (15%)
- Artificial Intelligence 4 (15%)
Stage
- Seed 9 (33%)
- Series A 8 (30%)
- Series B 5 (19%)
- Series C 3 (11%)
- Series D 1 (4%)
Country
- United States 21 (78%)
- South Africa 1 (4%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| LLM Inference Hardware | $500M / Series C / Sep 10, 2026 | ||
| Heaviside Industries is a defense technology company that develops autonomous precision munitions for land, air, and sea systems. | $60M / Series B / Aug 12, 2026 | ||
| Hydra Host is a tool that provides cross-cloud capabilities to deploy and host apps across public cloud and private cloud providers. In addition to cross-cloud capabilities, Hydra offers high-level advisory, as well as expert implementation work with bespoke service engagements catered to client priorities. Whether security, resilience, orscale-focused. | $100M / Series A / Jun 15, 2026 | ||
| Heaviside Industries is a defense technology company that develops autonomous precision munitions for land, air, and sea systems. | $28M / Series A / May 11, 2026 | ||
| LLM Inference Hardware | $233.9M / Series B / Feb 04, 2026 | ||
| Sandstone is the platform for AI-native legal departments. Sandstone is built by a team of lawyers, legal operations, and tech experts who understand that efficiency is not just about speed, but also about context. | $39.6M / Seed / Jan 13, 2026 | ||
| LLM Inference Hardware | $51.6M / Series A / Jul 28, 2025 | ||
| LLM Inference Hardware | $23.5M / Seed / Feb 11, 2025 | ||
| System Two Security offers a platform that combines AI agents and assistants to support detection engineering teams in processing intelligence, creating new detections, and managing detection libraries. The system enables users to draft and refine detections based on threat intelligence and coverage gaps. | $7M / Venture - Series Unknown / Dec 04, 2024 | ||
| Today, while platforms like Snowflake/GCP/AWS unlock insights and exploration, the volume of pipelines, the complexity of infrastructure, and the increasing cost of computing are overwhelming data teams. Single Origin helps data-driven organizations boost team productivity while realizing cloud cost savings. Our unique query optimizationplatform, operating between data warehouse and data tools/applications, automatically analyzes all of an organization's queries; identifies expensive and inefficient ones; then optimizes queries to be 10X simpler, faster and cheaper. We are the team that built and scaled uMetric at Uber, as well as other data infrastructure tools across snap, Reddit, Amazon, and Microsoft. More at https://docs.singleorigin.tech/ | $3.7M / Seed / Mar 03, 2022 | ||
| See all 27 investments → | |||
Co-Investors
About Flume Ventures
Flume Ventures is an operator-led firm built by entrepreneurs for entrepreneurs, redefining venture beyond the traditional playbook. Backed by the architects behind category-defining companies like Workday and Sun Microsystems, Flume partners with visionary founders to scale what’s next in technology. Our selective community of operators and investors provides the mentorship, insight, and network that bold ideas need to thrive.
Flume Ventures Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Matthew Nordby
Founder and Managing Partner
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FAQ
What does Scott McNealy invest in?
Scott McNealy invests primarily in Software, Analytics and Machine Learning startups, most often at Seed and Series A stage. Most of the 27 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What round sizes does Scott McNealy invest in?
Scott McNealy typically joins rounds of $950k–$40M at Seed, $6M–$100M at Series A and $15M–$234M at Series B. These are whole funding-round sizes, not Scott McNealy's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds Scott McNealy took part in.
How do I contact Scott McNealy?
Public channels for Scott McNealy 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 Scott McNealy last invest?
The most recent investment recorded for Scott McNealy closed in Sep 2026. Shizune tracks 27 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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