9 US AI startups have raised $100M or more in 2025

The round was announced on March 3 and was led by Lightspeed with participation from Salesforce Ventures, Menlo Ventures, and General Catalyst, among others. Together AI, which creates open source generative AI and AI model development infrastructure, raised a $305 million Series B round that valued the company at $3.3 billion. The February 20 round was co-led by Prosperity7 and General Catalyst with participation from Salesforce Ventures, Nvidia, Lux Capital, and others.