San Francisco-based startup Mount Thor has raised $45 million in seed and Series A equity funding to expand its cloud infrastructure, which gives AI developers remote access to Apple’s macOS operating system and hardware.

CRV and Conviction co-led the Series A round, while Chad Byers and Offline Ventures co-led the seed round. Other investors included CSC Leasing, Enea Capital, Long Journey Ventures and Upper90. The company also received support from individual investors associated with Cognition, Core Automation, Daytona, Meta, OpenAI, Together AI and Vercel.

In addition to its equity funding, Mount Thor secured an undisclosed amount of non-dilutive capital to purchase hardware.

Founded in 2026, Mount Thor builds and operates data centre infrastructure using Apple hardware. Its platform provides computing resources for AI research, software development and running AI models.

The new funding will help the company expand its computing capacity and hire more employees, particularly as it develops infrastructure for running open-source AI models on Apple silicon.

Building Cloud Infrastructure for AI Agents

Mount Thor focuses on developers building AI agents that can use computers to perform tasks. Some of these tasks require access to macOS and software designed specifically for Apple’s operating system.

Instead of buying and maintaining their own Apple hardware, developers can use Mount Thor’s cloud platform to access remote macOS environments.

The company builds and manages large-scale systems of Apple hardware, allowing customers to use these computing resources remotely.

Mount Thor’s infrastructure supports several applications:

• AI Research: Developers can create reinforcement learning environments to train and improve AI models that interact with computers.
• AI Agent Testing: The platform provides secure macOS environments for building, testing and evaluating AI agents.
• Long-Running Operations: It supports AI agents that need to operate across a user’s devices for extended periods, potentially over several weeks, while maintaining the same Apple identity.
• Software Development: Developers can build, test and simulate applications designed for Apple devices.
• AI Inference: The infrastructure supports running open-source AI models optimized for Apple silicon.

Expanding Its Data Centre Capacity

Mount Thor reported that it deployed its first data centre in less than six months. The company plans to increase its computing capacity as demand for its infrastructure grows.

Its team includes professionals who previously worked on infrastructure at companies such as Cerebras, CoreWeave, Fluidstack, Nebius, OpenAI and xAI.

As AI agents become more capable of interacting with computers and performing complex tasks, developers need reliable environments to build, test and run them. Mount Thor aims to meet this demand by providing cloud-based access to Apple hardware and macOS.

The $45 million funding will support the company’s infrastructure expansion and hiring as it develops its position in the growing AI cloud computing market.