Alexander Weiss
CEO, Co-Founder & Managing Partner @ ClearSky
North Palm Beach, United States
Alexander Weiss is a seed investor at ClearSky in North Palm Beach focused on Artificial Intelligence and Software. Alexander Weiss is based out of North Palm Beach, Florida and is the CEO, Co-Founder & Managing Partner of ClearSky. Alexander previously worked at Nextera Energy Inc as a Chief Investment Officer. Alexander Weiss attended the Columbia University.
- Total investments:
- 8
- Last investment:
- Lead investor:
- 38%
Last updated:
For AI agents: llms.txt
Industries Alexander Weiss invests in
Stages Alexander Weiss invests in
Countries Alexander Weiss invests in
Investment Focus
Industry
- Artificial Intelligence 4 (50%)
- Software 2 (25%)
- Cyber Security 2 (25%)
- Energy 1 (13%)
- Computer 1 (13%)
Stage
- Seed 2 (25%)
- Series B 2 (25%)
- Series C 2 (25%)
- Series A 1 (13%)
- Series D 1 (13%)
Country
- United States 6 (75%)
- Israel 1 (13%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Guardz
|
In a world that lives on digital, every business is at risk. That has been a problem for small and growing businesses, because most solutions are too cumbersome, too complicated and far too costly. That’s why we created Guardz. We curated and re-engineered the cutting-edge technology and tools that small businesses need into one, to make anaccessible, affordable way for small businesses to protect their business. We also added the ability to use their new security posture to access affordable cyber insurance. The right protection. The right price. Cybersecurity Peace of Mind. Guardz protects your business, so you can focus on building it. | $56M / Series B / Jun 09, 2025 | |
Lockchain.ai
|
Lockchain.ai operates as an AI to manage risk in crypto. | $4.6M / Seed / Apr 01, 2024 | |
Hatz AI
|
Hatz AI helps MSPs build an AI-as-a-service business with AI applications and agents. | $2.5M / Seed / Jan 04, 2024 | |
NumberOne AI
|
NumberOne AI is a startup that applies Artificial Intelligence (AI) and Machine Learning (ML) to broad global challenges. | $13M / Series A / Oct 11, 2022 | |
SKOUT Cybersecurity
|
SKOUT Cybersecurity provides a cybersecurity platform consisting of 24/7 security monitoring, endpoint protection and email protection through the channel. SKOUT's security team deploys the industry's most cutting-edge tools at affordable prices, providing the technology and protection to make cybersecurity accessible for all.SKOUT's Cybersecurity Platform is led by a team of experts from both the government and private sector. SKOUT's platforms are built to scale and our partners and their clients can benefit from achievements such as our SOC 2 certification and CJIS Accreditation.Typically these types of investments are only available to the Fortune 500; SKOUT makes them accessible to everyone. | $25M / Series B / Sep 18, 2019 | |
Autogrid
|
AutoGrid Systems organizes energy data and employs big data analytics to generate real-time predictions that create actionable data.The company’s suite of flexibility management applications allows utilities, electricity retailers, renewable energy project developers and energy service providers to deliver cheap, clean and reliable energy bymanaging networked distributed energy resources (DERs) in real time and at scale. AutoGrid applications utilize petabytes of smart meter, sensor and third-party data, along with powerful data science and high-performance computing algorithms, to monitor, predict, optimize and control the operations of millions of assets connected across global energy networks.Established at Stanford University in 2011, they have assembled a team of world-class software architects, electrical and computer engineers, data scientists and energy experts who apply cutting-edge analytics and in-depth energy data science to solve the world’s most critical energy problems. | $32M / Series D / Sep 10, 2018 | |
|
Autogrid
|
AutoGrid Systems organizes energy data and employs big data analytics to generate real-time predictions that create actionable data.The company’s suite of flexibility management applications allows utilities, electricity retailers, renewable energy project developers and energy service providers to deliver cheap, clean and reliable energy bymanaging networked distributed energy resources (DERs) in real time and at scale. AutoGrid applications utilize petabytes of smart meter, sensor and third-party data, along with powerful data science and high-performance computing algorithms, to monitor, predict, optimize and control the operations of millions of assets connected across global energy networks.Established at Stanford University in 2011, they have assembled a team of world-class software architects, electrical and computer engineers, data scientists and energy experts who apply cutting-edge analytics and in-depth energy data science to solve the world’s most critical energy problems. | $12.8M / Series C / Jan 27, 2014 | |
Mainspring
|
Mainspring designs and develops digital business strategies. The company provides consulting services focusing on digital technologies, business optimization, and technology enablement. Mainspring, formerly known as Mainspring Communications Inc., was founded in 1996 and is based in Cambridge, Massachusetts. | Series C |
Co-Investors
About ClearSky
ClearSky is a venture capital/growth equity group that invests in innovative companies, with a special focus on (i) technologies driving the energy transition, climate related technologies, and sustainability, (ii) the digital transformation of enterprise customers’ operations and communications, and (iii) disruptive solutions forcybersecurity, industrial security, and critical infrastructure security.
ClearSky Contacts
| Name | Phone | Socials | |
|---|---|---|---|
|
Alexander Weiss
CEO, Co-Founder & Managing Partner
|
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Austin Summers
Investment Professional
|
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Bernard Noble
Managing Director
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Bob Rauch
Managing Director
|
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Erik Straser
Managing Director
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FAQ
What does Alexander Weiss invest in?
Alexander Weiss invests primarily in Artificial Intelligence, Software and Cyber Security startups, most often at Seed and Series B stage. Most of the 8 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 Alexander Weiss last invest?
The most recent investment recorded for Alexander Weiss closed in Jun 2025. 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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