How much funding does AI Funding track for Poolside?

AI Funding tracks $652M for Poolside across 3 funding rounds in this database.

Who are Poolside's investors?

Poolside's investors include Bessemer Venture Partners, Felicis Ventures, Nat Friedman & Daniel Gross, Bain Capital Ventures.

When was Poolside founded?

Poolside was founded in 2023 and is headquartered in New York, NY.

Where is Poolside headquartered?

Poolside is headquartered in New York, NY.

Poolside

AI code-generation startup raised $500M+ in June 2026. Full funding round breakdown, investors, valuation, and how it stacks against rivals.

AI Developer Tools

Code Generation

Jason Warner· CEO & Co-Founder

Total Raised

$652M

Last Valuation

$3.0B

Series B, Oct 2025

Unverified — no source on file

Founded

2023

Headquarters

New York, NY

Employees

120+

Website

Overview

Poolside is building the next generation of AI foundation models purpose-built for software engineering. Co-founded by Jason Warner (former CTO of GitHub) and Eiso Kant, the company takes a fundamentally different approach from general-purpose LLMs by training models from scratch on code-specific data with reinforcement learning from code execution. This approach produces models that not only generate code but understand software architecture, testing patterns, and deployment practices. Poolside has attracted top AI researchers from DeepMind, Google Brain, and Meta AI, and its models are designed to serve as the backbone for the next wave of AI-powered development tools.

Funding History

3 rounds · Jun 2023 – Oct 2025

$652M

Total Raised

Cumulative: $652M

Code-specialized foundation model lab scales training infrastructure.

Bessemer Venture Partners (Lead)Nat Friedman & Daniel GrossFelicis Ventures

Source

Cumulative: $152M

Poolside raises $126M to scale training infrastructure for its code LLMs.

Bain Capital Ventures (Lead)

Cumulative: $26M

Poolside raises seed to build code-specialized foundation models.

Investors not disclosed

Frequently Asked Questions

How much funding does AI Funding track for Poolside?: AI Funding tracks $652M for Poolside across 3 funding rounds in this database.
Who are Poolside's investors?: Poolside's investors include Bessemer Venture Partners, Felicis Ventures, Nat Friedman & Daniel Gross, Bain Capital Ventures.
What does Poolside do?: Poolside is building the next generation of AI foundation models purpose-built for software engineering. Co-founded by Jason Warner (former CTO of GitHub) and Eiso Kant, the company takes a fundamentally different approach from general-purpose LLMs by training models from scratch on code-specific data with reinforcement learning from code execution. This approach produces models that not only generate code but understand software architecture, testing patterns, and deployment practices. Poolside has attracted top AI researchers from DeepMind, Google Brain, and Meta AI, and its models are designed to serve as the backbone for the next wave of AI-powered development tools.
When was Poolside founded?: Poolside was founded in 2023 and is headquartered in New York, NY.
Where is Poolside headquartered?: Poolside is headquartered in New York, NY.

Investors

Bessemer Venture Partners

1 round(s)

Felicis Ventures

1 round(s)

Nat Friedman & Daniel Gross

Angel

1 round(s)

Bain Capital Ventures

1 round(s)

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