The Week’s 10 Biggest Funding Rounds: Massive Deals For Medical Devices, Futuristic AI Gadgets And Frontier Labs Lead

This week’s largest U.S. startup funding rounds highlighted a surge in investments for medical devices, AI, and frontier tech. MiRus, a Marietta, Georgia-based medical device company, secured $1.5 billion in a corporate round led by Boston Scientific, which acquired a 34% equity stake. The company has now raised $1.6 billion total, focusing on next-generation orthopedic and spinal technologies. Hark, a one-year-old San Jose, California-based AI startup, raised $700 million in a Series A round led by Parkway Venture Capital, with backing from Nvidia, Intel Capital, AMD, Qualcomm Ventures, ARK Investment Management, and others. The company aims to develop personalized AI devices and hardware, planning a product launch later this summer at a $6 billion valuation. Modal Labs, a New York-based AI infrastructure provider, raised $355 million in a Series C round led by General Catalyst and Redpoint, achieving a $4.65 billion valuation. CEO Erik Bernhardsson noted annual recurring revenue (ARR) surged to $300 million, up from $60 million in September, driven by enterprise AI adoption. Other notable deals included Decart, a frontier AI lab, raising $300 million, and significant funding for aerospace, fintech, and retail technology startups. The week’s funding trends reflected strong investor interest in AI, healthcare innovation, and scalable enterprise solutions.