Daytona Raises $60M Series B at $1B Valuation to Build Cloud Infrastructure for AI Agents

Quick Facts

• Daytona closed a $60M Series B led by FirstMark Growth at a $1B valuation, bringing total funding to $91M.
• Revenue grew 25-fold between January and September 2026, reaching $3M ARR within 95 days of relaunching as agent-native infrastructure.
• Customers include Anthropic, OpenAI, Nvidia, Meta, and Cursor, with AI data company Snorkel provisioning more than one million sandboxes on the platform.

Daytona, a three-year-old startup building cloud infrastructure for AI agents, closed a $60M Series B on October 20 at a $1B valuation. FirstMark Growth led the round, and roughly $50 million came from existing investors.

The round makes Daytona Croatia's third unicorn, joining Infobip and Rimac Automobili. The company has about 30 employees.

A Risky Rebuild That Paid Off

Daytona was founded in 2023 by Ivan Burazin, Vedran Jukic, and Goran Draganic to automate software development environments for large enterprises. In 2025, the founders saw that AI agents would need dedicated computing environments and changed course.

Burazin described the shift plainly: the team "gave our competitors all our customers, rebuilt everything, had like three months left of revenue in the bank, and then relaunched this thing." The bet worked. The company hit $1M in forward ARR in under 50 days after relaunching and $3M ARR within 95 days, all without a dedicated sales team.

What the Platform Does

Daytona's core product is a programmable sandbox: an isolated computing environment where an AI agent can execute code, call tools, browse the web, and manage workflows on its own. The company calls the broader offering the Agent Cloud.

Sandboxes start in 60 milliseconds. Agents can pause, resume, or copy a sandbox to run multiple approaches at once. The platform supports Linux, Windows, macOS, and GPU environments. About 70% of revenue comes from post-training workloads.

Traditional cloud infrastructure was built for long-running services. Agents spin up thousands of short, stateful jobs that are not planned in advance. Daytona built its infrastructure specifically for that pattern. The platform currently handles 850,000 daily sandbox runs.

A Star-Studded Cap Table

The investor list reads like a roster of the most recognized names in technology. Angel investors include Stripe's Patrick Collison, Shopify's Tobi Lutke, Perplexity's Aravind Srinivas, Datadog's Olivier Pomel, Quora's Adam D'Angelo, and Zoom's Eric Yuan.

Strategic investors Qualcomm Ventures, Samsung Next, and Okta Ventures also joined the round, along with Alumni Ventures, Torch Capital, Pace Capital, Upfront Ventures, and E2VC. E2VC is now in its fourth round with Daytona. Upfront Ventures is in its third. FirstMark also led the company's $24M Series A in February 2026.

The Customer List

Daytona's customers span the AI stack. Model builders include Anthropic, OpenAI, Nvidia, Meta, and Cohere. Data and training companies using the platform include Snorkel AI, Surge AI, and Turing. Companies shipping agents into products include Writer, Clay, Postman, Mintlify, and bolt.new.

Snorkel AI alone has provisioned more than one million sandboxes on Daytona's platform. The company reports 74% month-over-month growth and says it grows roughly 51% per month with no salespeople.

What Investors Are Betting On

FirstMark's Matt Truck framed the investment around a coming infrastructure shift: "We believe the next infrastructure shift is from human-centric cloud primitives to agent-native ones."

Burazin's pitch is direct. Every agent needs a computer. Daytona is building millions of them. The company plans to use the new capital to expand that infrastructure and deepen the tooling agents need to write code, use Git, and run tasks safely at scale.