Poolside at a glance
Question | Answer | As of |
|---|---|---|
Who owns Poolside? | Its co-founders, employees and investors such as Bain Capital Ventures, Redpoint, Felicis and Nvidia; no public shares | Nov 2026 |
Valuation | $12B before a $1B Nvidia investment, per an investor letter (not confirmed by either company) | Aug 2026 |
Total raised | $626M by October 2024, plus the reported $1B from Nvidia | Aug 2026 |
Revenue | Not disclosed | Nov 2026 |
Employees | About 150 in late 2025; 109 were offered jobs at Nvidia in August 2026 | Aug 2026 |
CEOs | Co-founders Jason Warner and Eiso Kant, as co-CEOs | Nov 2026 |
Founded | 2023, in the US | 2023 |
Headquarters | San Francisco on paper; in practice a remote team, with an office in London | Nov 2026 |
Is it European? | No. Poolside is an American company with UK, French and Swiss subsidiaries | Nov 2026 |
Models | Laguna, open-weight coding models; hosted access ended October 31, 2026 | Nov 2026 |
Email format | {first}@poolside.ai (95% of known addresses) | Nov 2026 |
Poolside, Inc. is a Delaware corporation, and it signs customer contracts from a San Francisco address (Poolside terms). It has subsidiaries in the UK, France and Switzerland. Many sites call it French: why that’s wrong is on Is Poolside a European company?.
Who owns Poolside?
Poolside is private and publishes no ownership stakes. Its founders, Jason Warner and Eiso Kant, started it in 2023 with a seed round led by Redpoint Ventures (Redpoint). Later investors include Felicis, French billionaire Xavier Niel and Bpifrance (Sifted), then Bain Capital Ventures, which led the 2024 Series B with Nvidia, eBay, Citi, DST and StepStone among the backers (TechCrunch). Kant says “the vast majority” of its money came from US investors (X).
What is Poolside’s revenue?
Poolside doesn’t disclose revenue or customer numbers. It sells to companies and to the US government, through Poolside Federal (Poolside), and has been sold through AWS since December 2024 (Poolside). Its open models are widely used: Laguna XS.2 and M.1 processed more than a trillion tokens in their first four weeks (Poolside).
It had about 150 employees in December 2025 (Globes); LinkedIn counted about 300 people in October 2026 (LinkedIn).
Poolside ARR (annual recurring revenue)
Poolside doesn’t disclose ARR or revenue. It sells to companies and governments and, until October 31, 2026, sold hosted access to its models, but it has published no figures.
Poolside MRR (monthly recurring revenue)
Poolside doesn’t disclose MRR either, so there is no monthly figure to give.
How much has Poolside raised? Funding and valuation
Date | Round | Amount | Led by | Valuation | Source |
|---|---|---|---|---|---|
Aug 2026 (reported) | Nvidia investment, alongside a $6B license | $1B | Nvidia | $12B before the money | |
Oct 2025 (reported) | Planned round; did not close | $2B target | Nvidia, up to $1B | $12B | |
Oct 2, 2024 | Series B | $500M | Bain Capital Ventures | About $3B (reported) | |
Aug 2023 | Seed extension | $100M | Felicis and Xavier Niel | Not disclosed | |
May 2023 | Seed | $26M | Redpoint Ventures | Not disclosed |
Poolside raised $626 million by October 2024 (Poolside). Bloomberg put the Series B valuation at about $3 billion (Fortune); Poolside’s own release gives none.
Poolside in 2026: a lost cluster and the Nvidia deal
In late 2025 Poolside tried to raise $2 billion to pay for a cluster of 40,000 Nvidia GB300 chips from CoreWeave. In the founders’ words to investors: “We had a 6 week window in which to raise $2 billion dollars to pay for a 40,000 GB300 cluster coming online in January. We didn’t close it in time, and we lost the cluster” (TNW). The CoreWeave deal for its Texas data center fell apart too (DCD).
In August 2026 Nvidia agreed to pay $6 billion for a non-exclusive license to Poolside’s “Model Factory”, the system it uses to build models, and to invest $1 billion at a $12 billion valuation, according to a letter to investors; 109 Poolside employees were offered jobs at Nvidia (Newcomer). “This is not an acquisition and it is not an acquihire,” the founders wrote. Neither company has confirmed the deal publicly (TNW).
Poolside shut down its hosted model service on October 31, 2026; its models remain free to download (Poolside) (Hugging Face). One investor, StepStone, valued its Poolside shares at about 2.5 times their 2024 cost at the end of 2025 and back at cost by June 2026 (SEC).
What does Poolside make? Products
Poolside builds AI models for writing software, betting on reinforcement learning on coding tasks (Air Street Press). Its first models, Malibu and Point, ran on AWS (Poolside). In April 2026 it released its first open-weight models, the Laguna family, with a preview of pool, a coding agent for the terminal (Poolside).
Date | Launch | Source |
|---|---|---|
Jul 21, 2026 | Laguna S 2.1: 118B parameters, open weights, a million-token context | |
Jul 2, 2026 | Laguna XS 2.1 | |
May 5, 2026 | Poolside Platform: agents that run inside a company’s own systems | |
Apr 28, 2026 | Laguna M.1 and XS.2, its first open-weight models, and a preview of pool | |
Nov 18, 2025 | Acquires Fern Labs, a London engineering firm | |
Dec 4, 2024 | Malibu and Point models, sold through AWS |
Project Horizon
In October 2025 Poolside announced Project Horizon, a 2-gigawatt AI campus in West Texas, with CoreWeave as anchor tenant (CoreWeave). After the CoreWeave deal ended, a separate company, Poolside Infrastructure Company, took it on, with Eiso Kant as President (PIC). It now plans 200 megawatts in its first building, with the first computing in late 2027 (PIC).
Who is the CEO of Poolside?
Poolside has two co-CEOs, its co-founders. Jason Warner was CTO of GitHub from 2017 to 2021 (SEC); Eiso Kant, who is Dutch, had founded source{d}, which applied AI to source code, and Athenian, an engineering-analytics company (SEC). They met in 2017, when Warner tried to buy Kant’s company (X).
Person | Role | Source |
|---|---|---|
Jason Warner | Co-founder and co-CEO; formerly CTO of GitHub | |
Eiso Kant | Co-founder and co-CEO; also President of Poolside Infrastructure Company | |
Philip Drury | Chief Investment Officer since July 2025 | |
Margarida Garcia | Co-founder and interim COO of Poolside Infrastructure Company | |
Justin Lagasse | CFO of Poolside Infrastructure Company since August 2026 |
Full bios and contact routes: Poolside CEOs Jason Warner and Eiso Kant: email, LinkedIn and bio.
Where is Poolside headquartered?
Poolside’s legal address is a mailbox at 548 Market Street, San Francisco (Poolside terms), and its job posts say “Poolside is a fully remote company” (Poolside). It has an office in London, used daily, and one in Paris, used for monthly gatherings, Kant says (X). Its people work across Europe and North America in roughly equal numbers.
Why it is often called French, and the evidence that it isn’t: Is Poolside a European company?.
What is Poolside’s email format?
Poolside staff use {first}@poolside.ai: 95% of known addresses per Prospeo (Prospeo). When a first name is taken, the second person gets {first}.{last}@poolside.ai. Staff mail runs on Google Workspace.
Need | Official address |
|---|---|
Press | press@poolside.ai |
Security | security@poolside.ai |
Privacy | privacy@poolside.ai |
Legal notices | notices@poolside.ai |
All patterns and official inboxes: Poolside email format.
Key events
Date | Event |
|---|---|
Oct 31, 2026 | Hosted model service shuts down; models stay downloadable (Poolside) |
Aug 2026 | Nvidia agrees to a $6B license and a $1B investment, per an investor letter (Newcomer) |
Jul 21, 2026 | Releases Laguna S 2.1 (Poolside) |
Apr 30, 2026 | Kant: “We are an American company with a global team” (X) |
Apr 28, 2026 | Releases its first open-weight models, Laguna M.1 and XS.2 (Poolside) |
Early 2026 | Loses its CoreWeave cluster after a $2B raise fails (TNW) |
Nov 18, 2025 | Acquires Fern Labs (Poolside) |
Oct 15, 2025 | Announces Project Horizon in West Texas (CoreWeave) |
Dec 4, 2024 | Launches on AWS (Poolside) |
Oct 2, 2024 | Raises a $500M Series B led by Bain Capital Ventures (TechCrunch) |
Aug 2023 | Raises $100M more; reports say it is moving to Paris (Sifted) |
May 2023 | Founded by Jason Warner and Eiso Kant, with a $26M seed led by Redpoint (Redpoint) |
More on Poolside and similar companies
Is Poolside a European company?: where it is really based, and why many sites call it French
Poolside email format: the pattern and official inboxes
Poolside CEOs Jason Warner and Eiso Kant: their careers and how to reach them
Cursor in 2026: the AI coding company that took the opposite route
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