Alex Weiss is CEO, Co-Founder, and Managing Partner of ClearSky. He previously held senior roles at NextEra Energy, Morgan Stanley, Smith Barney, and Paine Webber, and holds degrees from Boston University and Columbia University.
What Alex can write
ClearSky writes $1M to $3M checks, larger than 83% of firms in the atlas.
Bars: how many firms report each check band. Highlighted: ClearSky.Career
- Paine Webber · Managing Director
- Smith Barney · Managing Director
- Morgan Stanley · Vice President
- NextEra Energy · Vice President and Chief Investment Officer
- ClearSky · CEO, Co-Founder & Managing PartnerNow
Companies founded
Investments named in public bios
Focus
Education
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Who is Alex Weiss?
Alex Weiss is CEO, Co-Founder, and Managing Partner of ClearSky. He previously held senior roles at NextEra Energy, Morgan Stanley, Smith Barney, and Paine Webber, and holds degrees from Boston University and Columbia University.
How much does Alex Weiss invest?
Alex Weiss invests through ClearSky, which writes checks of $1M to $3M at seed, series a, series b.
How do I pitch Alex Weiss?
A warm intro from a founder ClearSky backed works best.
What did Alex Weiss do before ClearSky?
Managing Director at Paine Webber; Managing Director at Smith Barney; Vice President at Morgan Stanley; Vice President and Chief Investment Officer at NextEra Energy.
Last updated 2026-10-15. Is this you? Ask for a correction.