Brett Adcock's AI Hardware Startup Hark Closes $700M Series A at a $6B Valuation

Hark, the secretive AI hardware startup founded by serial entrepreneur Brett Adcock, has raised $700 million in a Series A round at a $6 billion post-money valuation — one of the largest first institutional rounds ever closed by a consumer AI company. The round was led by Parkway Venture Capital with participation from Nvidia, AMD Ventures, Intel Capital, Qualcomm Ventures, Salesforce Ventures, ARK Invest, Brookfield, Greycroft, Prime Movers Lab, Align Ventures, and Tamarack Global.

Adcock, who previously founded humanoid robotics firm Figure.AI and electric aircraft maker Archer, quietly launched Hark in late 2025 with $100 million of his own capital. The company is building what it calls a universal AI interface — an agentic system that combines proprietary multimodal foundation models, native hardware, and a software platform designed from the ground up to act as a personal assistant across every digital service its user touches.

The first product is software. Hark plans to roll out its multimodal models this summer, giving early users access to its personal AI platform on existing devices. Custom hardware — the part of the stack that has tripped up rivals like Humane and Rabbit — will follow afterward. The company has 70 employees and is already running a data center built on Nvidia B200 GPUs, and says the new capital will go toward recruiting hardware engineers, product designers, and AI researchers, plus locking in additional compute and component supply.

Director of Design Abidur Chowdhury, a former Apple executive, summarized the company's pitch bluntly: existing AI products are aimed at developers and power users, not normal people. "I haven't seen anything that feels like something that will really help like the normal person," he said, framing Hark as a consumer-first counterweight to the developer-tooling boom driving valuations at Anthropic and OpenAI.

The unusually broad investor syndicate — three competing chipmakers in the same round, plus a major enterprise SaaS strategic and a public-markets fund — is a bet that the next platform shift in AI will not be won by another chatbot. It is also a vote of confidence in Adcock himself, who is now simultaneously chairing three multi-billion-dollar hard-tech companies. The unsolved problem he is racing toward, the company concedes, is giving an AI enough personal context to be useful without making the people around its wearer uncomfortable — the same wall every ambient-AI device has hit so far.