Jonathan Segal

Co-Founder & COO, Zeno Power | he/him

[Tyler Bernstein @tybernstein]

Humanity is going back to the frontier – but this time to stay.

And the frontier won't be held by a few large platforms, it'll be held by fleets and constellations of systems numbering in the thousands. That requires a category of distributed power at a scale the world has never built. Until now.

My latest on why we're industrializing nuclear battery production at the historic Vallecitos Nuclear Center:

https://t.co/iVjmRRtB9g

[Zeno Power @zeno_power]

Beginning today, we are industrializing nuclear battery production at the historic Vallecitos Nuclear Center.

With this facility, we will deliver our first nuclear battery to customers in 2027 and scale production in 2028 - powering critical missions from the seabed to the lunar surface.

[Zeno Power @zeno_power]

Not every mission needs a megawatt.

Nuclear batteries will power the next frontier – beginning in 2027.

[Zeno Power @zeno_power]

Working with @Oranogroup, we're making a multi-million dollar investment to secure americium-241 to fuel our space nuclear batteries. 🚀

[Danielle Strachman 💗 🐈 💃 🪴 🎸 🎨 🐕 @DStrachman]

You can just build things!

Two young men out dropped out of Vanderbilt to start Zeno Power. Started with some belief capital with a $50K check from 1517 to test their ideas and now they are going to the moon!

Congrats Zeno team!

[Zeno Power @zeno_power]

Today, we’re announcing our $50 million Series B and that Admiral John M. Richardson (USN, Ret.), former Chief of Naval Operations, is joining our Board of Directors.

With over $70 million raised to date, we’re accelerating toward full-scale nuclear battery demonstrations in 2026, enabling deliveries to maritime and space customers in 2027.

Read more via @demarest_colin in @axios:
https://t.co/EDq6gWGwbr

[Zeno Power @zeno_power]

2024 was a defining year for Zeno – one that validated our founding vision and accelerated our commercialization of nuclear batteries for use from deep sea to deep space.

Read our full year-in-review post on LinkedIn: https://t.co/6z0Hobm9xw

[Zeno Power @zeno_power]

“We are turning liabilities into assets, what we call ‘phoenix projects,’ like our friends at Zeno” - @SecGranholm

We’re proud to partner with @EMcleanup to turn legacy waste into assets to power national security and scientific missions from the seabed to the lunar surface.

[Washington Post Communications @WashPostComms]

📺ICYMI: @ELaserDavies joins @CNN's @Acosta from Bethel Park on residents' reactions to the #Trump rally shooter:

"People here are really shocked... [they're] trying to figure out how this person existed so close by without any obvious sign of trouble."

https://t.co/WyVXtE3co3

[Zeno Power @zeno_power]

✅ Reducing a taxpayer liability
✅ Recycling nuclear byproduct material for clean power generation
✅ Revitalizing Sr-90 RPS technology for 21st century applications

We make great partners, @OakRidgeOffice @EMcleanup 🤝♻️

[Zeno Power @zeno_power]

Today, we’re excited to announce that we’ve secured the Strontium-90 (Sr-90) fuel to bring our full-scale radioisotope power systems to market by 2026!

Link to PR: https://t.co/NZ7q0SwlH8

[Jonathan Segal @jonathangsegal]

Here’s an amazing explainer 🧵 of what we’re building at Zeno ⤵️

Oh, and @nuclearkatie is a must-follow for all things nuclear!

[Katie Mummah, PhD @nuclearkatie]

When we talk about the future of nuclear, we usually mean fission, or fusion. But the nuclear industry just took a big step forward in another arena-- radioisotope power systems. @zeno_power, a nuclear startup, has demonstrated a radioisotope heat source at @PNNLab!

[Zeno Power @zeno_power]

We’ve been awarded a $30M STRATFI award to build a flight-ready radioisotope-powered satellite for @SpaceForceDoD by 2025. 🚀🚀

Full story below from @Sandra_I_Erwin and @SpaceNews_Inc

#spacenuclear #adastrapernuclear

https://t.co/wjBWHKjWh7

[Jonathan Segal @jonathangsegal]

@flightradar24 I’m on UA484 DEN-SEA and we experienced a steep go-around on short final into Sea-Tac due to our proximity to another aircraft. Can you determine how close the two aircraft came within one another?

[Jonathan Segal @jonathangsegal]

@bschwa17 @joshhansan @nsanchez023 @vandy_62 🫡

[(((Alex Gilbert))) @gilbeaq]

Best part of working at an aerospace startup in DC, going to the newly renovated Air and Space Museum on a Monday morning field trip with the @zeno_power team

[Jonathan Segal @jonathangsegal]

We are go for launch in 3, 2, 1...🚀

An exciting day for Team Zeno, indeed! Thank you for believing in us, @arjunsethi and Tribe team. Next stop: the universe.

[Zeno Power @zeno_power]

Today, we're proud to announce that Zeno has raised a $20M Series A led by Tribe Capital (@arjunsethi) with participation from @DCVC, @1517Fund, and others to accelerate on our mission to provide clean, plug-and-play power, anywhere in the universe! 🚀🚀

https://t.co/BuTyExbzAr

[Jonathan Segal @jonathangsegal]

We couldn't have put it any better! A wonderful short summary of what we're up to at Zeno.

Thanks for the shoutout, @jason_pontin – we're glad to have you and @DCVC as partners on this journey! 🚀

[Jonathan Segal @jonathangsegal]

@amiyoshimura_ @DStrachman and @William_Blake @ @1517fund!💯💯💯

[Jonathan Segal @jonathangsegal]

@gilbeaq P.S. he's a must-follow on this platform for space/nuclear fans!

[Jonathan Segal @jonathangsegal]

Getting things into space is hard. Getting nuclear things into space is even harder (for good reason).

Alex @gilbeaq is joining Zeno to lead our launch approval processes and broader regulatory engagement efforts - and we couldn't be more thrilled.

Welcome to the team, Alex! 🚀

[(((Alex Gilbert))) @gilbeaq]

Some professional news: I am joining @zeno_power as their Director of Space and Planetary Regulation.

We are building radioisotope power systems for commercial and government clients for outer space and maritime applications. I'll be responsible for our regulatory approvals