Visiting Partner @ycombinator. Backing high-output YC founders via @phosphorcap. Previously founded and sold @ZeusLiving (S11) & @auctomatic (W07).
San Francisco
Joined July 2006
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- Following4.1K
- Followers285K
- Likes12.6K
Kulveer retweeted
One turbine. 2 product lines.
Our steam-injected turbine uses up to 40% less fuel, emits up to 99% less NOx, and recovers its own water.
Gena brings it to the ground for on-site power for AI data centers.
Eyja takes it to the sky as an efficient turboprop engine for aircraft.
Kulveer retweeted
This is a message for @realDonaldTrump.
Donald, this is on the table. Guarantee healthcare for every American, from cradle to grave.
Banger company from F26.
Introducing Summer Engine (YC F26). Summer makes it easy for everyone to make and play games together!
You ask for the game you want. Summer builds it, and you play it with your friends.
Last Christmas I tried to make a game with AI. The game looked great. But, then I wanted real multiplayer, analytics and monetization, and it became a huge pain! And don't get me started on publishing.
A year later it is still the same for most people. The games look much better, but you still get stuck with a prototype.
So we fixed it.
Today, tens of thousands of creators from all over the world have built games on Summer. The community has made more than 240,000 assets that every user can build with, making it one of the biggest free asset libraries in the world.
You own the game you make on Summer. You can sell it and publish it on Steam, Web, iOS, Android, and on Summer Games.
Making games should be as fun as playing them.
Try it at summerengine.com
PS. @garrytan made a game in a weekend about being a founder in the YC batch. You can try "FounderStar" on the link above.
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Kulveer retweeted
Kairox Systems (YC F26) is building autonomous drones that fly and swim.
Militaries around the world rely on unmanned systems for cross-domain air and sea missions, but they still need separate drones, separate operators, and separate logistics chains. Navy officers, special operations (SOF) operators, and researchers at MIT all told us the same thing: Aerial drones are fast but easy to detect. Underwater drones are stealthy but slow to get on target. At Kairox, we believe hybrid drones are the next evolution of unmanned platforms.
Kulveer retweeted
So excited to share my YC launch!
@plek_ai turns an employee census into a bottom-up value creation plan in under a minute.
At a 3,600-person company, Plek Al found $30M in annual EBITDA levers, the same number a global PE advisory reached in 6 weeks
Congrats on launching @Sintropix!
It's been awesome working with @alfonsomdelap and @BorjaMpm this batch.
In some countries you file taxes every month. Now picture one company with entities in several of them, each with its own currency and its own accounting firm.
That is the mess Sintropix (YC F26) takes off a founder's plate: one general ledger across every entity, books closed for you, taxes prepared monthly.
Alfonso could not afford an accountant at his first company, so at 20 he became one.
Now Sintropix closes the books and prepares the taxes for their customers.
Live in the US, Mexico, Brazil and Chile.
Today we are launching @Sintropix, backed by @ycombinator: The AI-native ERP that closes your books every day and files your taxes in every country you operate in.
We connect to your banks, invoicing and payroll, and handle the accounting end-to-end. Founders get one place to do their finance work: track KPIs, see consolidated P&L and ARR reports, and forecast runway.
Kulveer retweeted
I realize I never properly introduced myself so here it goes!
I'm Anaïs, I grew up in Paris 🇫🇷 and moved to the US 14 years ago for college at UC Berkeley (go Bears! 🐻)
I started out on Wall Street in the bond market, first as a quant analyst on Wells Fargo's $350B MBS portfolio, then managing $17B of MBS, ABS and CMBS at @Google Treasury. Along the way I got hooked on building tools to automate my own work.
That pulled me into product at @Google working on Search (AI Mode and AI Overviews) and the Gemini app. Then I left to start my first company building infra and evals for computer use agents. It wasn't the right fit so I shut it down and learned a ton.
Now I'm back to my first love: bonds 😅 I'm building @OasiveAI solo to help fund managers figure out which bonds to buy. In the current @ycombinator batch (a little over 3 weeks left!)
Outside of work, I'm a big runner (I used to run ultras) and I love backcountry and downhill skiing. I did a lot of CrossFit until shoulder surgery benched me earlier this year. I live in Menlo Park with my husband and our 2 dogs 🐶🐶
Say hi if you're into bonds, AI or a good trail run!
Kulveer retweeted
We just launched @Talos_US (YC F26). talos-us.com
Talos is building an early-warning system for aging power grid infrastructure.
We're moving maintenance from reactive to proactive. We deploy retrofittable sensors to continuously detect catastrophic failures at just 20% the cost.
Kulveer retweeted
Garage has mostly flown under the radar, but it's one of the most successful new marketplaces of this decade. They're now selling more than $100M / year of used fire trucks and other equipment.
But what impresses me most about @MartinHuntJr and @alazsengul is how focused they've been. They started Garage to solve a problem for some of the overlooked, hard-working Americans who keep our society functioning, and that's exactly what they've done.
Today we’re announcing our $41M Series B, led by Invus Opportunities, bringing our total funding to $60M.
@MartinHuntJr and I started Garage just over two years ago to be the marketplace for America’s most essential vehicles and equipment. Since then, every day I wake up and get to build for the people responsible for keeping our cities and towns moving forward.
The more time we spend with our customers, the more energized I feel by the pride they take in their work and their commitment to the communities they serve. It’s a privilege to build for them, and even more special to do it alongside a team that shares that same sense of purpose.
There’s a lot left to build, and we’re looking for ambitious people to build it with us!
Shrinking transistors is getting harder and more expensive.
The next decade of chip performance comes from stacking them.
Stack them and heat becomes the problem, and the EDA tools everyone uses were built for flat chips.
@archgen_ is building EDA for 3D.
Thermal model 5,000x faster than conventional tools, #1 in HRT’s macro-placement challenge, first tape-out April 2027!
Congrats on your launch @HariAyapps!
@archgen_ is building skyscrapers for semiconductor chips
Shrinking transistors is getting harder. Stacking them makes heat harder to manage. We’re building the tools to design chips in three dimensions.
We stack transistors vertically, shorten connections, and optimize timing and heat together.
Our foundational model for thermal simulation, predicts temperature roughly 5,000× faster than conventional EDA tools.
Our placement engine ranked #1 in HRT’s macro-placement challenge
We’re working with some of the largest fabs in the world to tape out our first chip in April 2027
archgenlabs.com
Kulveer retweeted
@archgen_ is building skyscrapers for semiconductor chips
Shrinking transistors is getting harder. Stacking them makes heat harder to manage. We’re building the tools to design chips in three dimensions.
We stack transistors vertically, shorten connections, and optimize timing and heat together.
Our foundational model for thermal simulation, predicts temperature roughly 5,000× faster than conventional EDA tools.
Our placement engine ranked #1 in HRT’s macro-placement challenge
We’re working with some of the largest fabs in the world to tape out our first chip in April 2027
archgenlabs.com
Excited to have the funded the first health wearable for your eyes.
Congrats @STASISYCF26 on your launch!
Your eyes carry a lot of information:
- alertness
- fatigue
- strain
When I was in back to back meetings all day @ZeusLiving I used to play bullet chess in short breaks to see how my brain was holding up during the day.
I didn't want to make big decisions when below my cognitive peak.
This is going to be much more accurate.
Go pre-order yours now.
Congrats @sochak03 and team!
A first look at what STASIS (@ycombinator F26) has been up to.
Your watch knows your heart rate. Your ring tracks your sleep. But after 9+ hours on a screen, you guess when it comes to your eyes.
STASIS is the first smart glasses that read every blink, every squint, & every stare to understand your fatigue, cognitive performance, & sleep like never before. Smart lenses tint right when your eyes need it.
Building the wearable for 16 billion eyes.
Launching this November. Founding Member orders now open.
Very excited to have funded @theseuscom this batch at YC!
The team is laser focused on deployment and minimizing time to value for their supermarket partners. It’s been a treat to watch them execute.
Congrats on your launch!
Watch the video and if you work on in-store operations reach out to them.
added benefit: after laser eye surgery in 2009, I don't want to strain my eyes so much that I become short sighted again.
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Kulveer retweeted
Introducing @trepoai (F26)
We built hardware that lives in your kitchen, understands your household, and enables agents the to shop for you in the background.
Starting with groceries 🥕
Kulveer retweeted
Self improving AI is the most powerful tool in developing the next generation of EDA algorithms for layout
These algorithms run faster and more efficiently by orders of magnitude and ever before.
Check out our work here: archgen.tech/blog/posts/how-…
The more I am looking at AI for semiconductor design, the more it seems to me that:
1. RTL generation is just coding
2. 100% of RTL will be generated by agents
3. This means frontier models will dominate
And to be clear, we still need specialized tools for those agents that do verification, physical simulation, layout etc.
Kulveer retweeted
We built a new type of datacenter for AI inference. We call it NanoDC.
NanoDC is a solar-powered autonomous datacenter that can be deployed anywhere on the planet in 4 weeks.
11 Trillion will be invested in AI compute over the next 4 years. Most of this will be for inference and most of it will be severely delayed: stuck in grid interconnect queues, site permits, or supply chain issues. NanoDC sidesteps these issues completely.
NanoDC is built rapidly at a factory and shipped to the site ready to be turned on in 30 minutes. It generates its own power with solar and batteries. You open the door and the solar panels fold-out like an accordion. The compute is cooled with patent-pending high-density air cooling. It connects to the internet via Starlink.
No construction. No grid interconnect. No Water supply.
It never waits for transformers and turbine generators either.
Getting more compute is as easy as dropping more units and turning them on.
The first units will be live this month. Thousands will be shipping starting 2027.
Sunlight in. Tokens out.