We back magic makers. Alloy, Alma, Etched, Vestwell, and more.
New York, NY
Based in United States
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Did you know you can learn interesting things from computations in real rat neurons? I love what @AlexKsendzovsky and team are doing at @BioComputingCo are doing.
What happens when neurons meet silicon? A new world emerges.
Partnering with Amazon to bring it to customers. DM me for early access.
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Today’s guest is @NaveenGRao, CEO and founder of @unconvAI. Naveen has been early to some of the biggest, most influential markets in technology, building Nervana and MosaicML ahead of his current venture: Unconventional AI. To Naveen, the future of compute means that systems will look much more similar to how the real world computes, as opposed to a paradigm we’ve all accepted as the best fit. Listen to the episode for an early look into what Unconventional AI is building and Naveen’s perspective on their journey ahead.
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It's back to school for the best of tech.
On September 16, Summit returns to NYC with @UbertiGavin, @lancearmstrong, @eastdakota, @c_valenzuelab, @tankots, @paraga and many more.
Final applications are open for one more week.
Apply: primarysummit.vc
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Three years ago, almost everyone said Etched couldn’t be built.
Today, they’re shipping production systems to Jane Street.
Huge congrats to the entire @Etched team, @UbertiGavin and @robertwachen for your stunning leadership. Thank you @sonyatweetybird for seeing from the outside what had become obvious on the inside, @stripesco_ for betting on the company at such a crucial moment, and @patrick_oshag for your steadfast championing of the mission.
A personal reflection on this milestone:
nitter.net/BSchech/status/2089744…
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@BSchech and @patrick_oshag were some of our earliest believers, and I'm humbled they have chosen to double down in every single subsequent round.
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Massive news. Etched just shipped their first rack, and is now the largest private AI chip company.
We've raised $700M at a $21B valuation from Jane Street, Kleiner Perkins, Sequoia, A16Z, Peter Thiel, BCV, and Blackstone.
We're also excited to share that we've shipped our first rack to Jane Street.
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Six weeks until Summit 2026.
The lineup starts with founders and leaders from:
@vercel, @runwayml, @Etched,
@WisprFlow, @Cloudflare, @RogoAI, @every, and more.
September 16. NYC.
primarysummit.vc
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Big moment. Much much bigger ones coming soon.
Congrats to everyone at @Etched and a huge welcome to the incredible investors joining the team: @sonyatweetybird w/ @sequoia, @sarahdingwang w/ @a16z, @victoralazarte, and many more.
Buckle up everyone 🚀🚀🚀
We’ve raised $300M in Series C funding at a $10.3B valuation from Sequoia, Andreessen Horowitz, Jane Street, Argo, and SK Hynix.
Our mission is to run the world's inference. This round accelerates production of our inference clusters.
We've opened an 80,000-sqft, 10-MW facility 15 minutes from our office to expedite production and prototyping.
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Hardware-enabled software sold visibility: dashboards, alerts and reports.
Hardware-activated agents sell completed work.
We believe that difference can unlock 10–40× more value per deployed unit by moving from software budgets into labor budgets.
If you are a Founder, Operator or Investor in the hardware ecosystem, check out our 49 slide thesis at the link below.
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This week's guest on The Compute 100 podcast is @ChaseLochmiller, co-founder and CEO of @CrusoeAI.
Chase is building Crusoe, an energy-first AI company, deploying compute at gigawatt scale, and a key part of the biggest infrastructure buildout of all time. Link below.
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There are inflection points in technology that come around only once in a generation. @Etched is one of them.
Watching @UbertiGavin, @robertwachen and the entire team build @Etched has been the privilege of a lifetime.
Their Series B funding announcement inspired some reflective writing on the journey since March 2023.
Congratulations Etched! It’s game time!!!
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We're coming out of stealth.
We've built our first racks after a successful A0 tapeout, $1B+ in customer contracts, and $800m raised.
Early customer tests show us achieving SOTA throughput, latency, and power efficiency on inference workloads.
Our first racks ship this summer.
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Fund V. $625M. Seed at Scale.
Primary backs founders building things the world hasn't seen yet — at the moment before others believe.
Today we announced our fifth fund. $625M for the next chapter in AI. For every founder who's betting everything on an idea the world hasn’t seen yet.
This is what we were built for.
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Ten years ago, we made a bet: that seed-stage founders deserved more than capital. They deserved partners. People who would help them build from day one.
Today, I’m proud to share that we’ve raised Primary Fund V, a $625 million fund to back the next generation of founders who see what the world is missing and have the conviction to build it.
This video captures what we’ve learned from being in the trenches with iconic founders, and where we’re headed next.
Being a partner to early-stage founders has been the privilege of my career. If you're building something that matters, I’d love to hear from you.
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Primary Ventures raises healthy $625M Fund V to focus on seed investing techcrunch.com/2026/02/10/pr…
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