Hark, the AI hardware company that Brett Adcock began funding out of his own pocket late last year, has raised more than $700m in a Series A that values it at $6bn, according to Bloomberg.

The round closed roughly two months after Hark emerged from stealth, and lands the company in the upper tier of AI-hardware bets before it has shipped a product.

Parkway Venture Capital led the round. The investor list reads like a Who's Who of the chip and cloud stack: Nvidia, AMD Ventures, Intel Capital and Qualcomm Ventures all wrote cheques, as did Salesforce Ventures, Brookfield, ARK Invest, Greycroft, Prime Movers Lab, Align Ventures and Tamarack Global. Several of those names sit on more than one side of the AI hardware question, which is part of the point.

Adcock founded Hark in late 2025 with $100m of his own money, after a run of founding companies that are now public, acquired, or among the better-funded private operators in their respective categories.

He co-founded the recruiting marketplace Vettery, sold to Adecco for $100m; founded electric aircraft maker Archer Aviation, which went public via SPAC in 2021; founded humanoid robotics company Figure, where he remains chief executive; and founded school-security company Cover. He is also the principal at Hark.

What Hark is actually building is less crisp than what it has raised. The company has described itself as developing a “personal AI platform” that pairs in-house foundation models, software, and native hardware with new interfaces, rather than picking a single layer of the stack.

According to the BusinessWire announcement in March, Hark intends to release its first multi-modal models this summer.

The category Hark is entering is small, expensive, and littered with failures. Humane's AI Pin became the most public cautionary tale of 2024, with the Rabbit R1 close behind. Even Apple, which has a hardware distribution machine no one else can match, has spent the past year trying to figure out what its on-device AI offering should actually look like.

The case for Adcock is that he has shipped hardware before, at Archer and Figure, and that integrating models and silicon from day one is the version of the bet most likely to produce a defensible product.

What Hark has not yet disclosed: headcount, hardware form factor, target price, launch market, or a customer pipeline. The Series A buys time to keep that opaque for a while longer.

With Nvidia and AMD both on the cap table, supply allocation, often the binding constraint on AI hardware companies in 2026, becomes a question Hark can probably answer more comfortably than most of its peers.

What the round does not buy is product-market fit. Hark joins a category in which several well-funded, well-credentialled teams have launched, missed, and quietly retrenched. By the company's own timeline, the first models are weeks away; the device that turns those models into a business is still further out.