ai-sdk
(2)
Continual
Continual is a San Francisco AI company building a platform for running business operations with agents. Founded by repeat ML founders Tristan Zajonc and Tyler Kohn, it launched in 2021 as a declarative machine-learning platform on the modern data stack, then pivoted into the AI copilot and agent era - letting teams connect their tools and data, automate workflows across agents and people, and turn repeatable processes into agent-powered applications. Backed by $18.5M+ from Innovation Endeavors, Amplify Partners and others.
CopilotKit
CopilotKit is an open-source company building the interface layer between humans and AI agents. Its SDK and the open AG-UI protocol let developers embed agents directly inside apps - rendering interactive UI, sharing state, and supporting human-in-the-loop workflows - instead of bolting on a text-only chatbot. Founded in 2023 by brothers Atai and Uli Barkai and headquartered in the Seattle area, the company raised a $27M Series A in May 2026 and counts Google, Microsoft, Amazon, Oracle, and a large share of the Fortune 500 among adopters of its protocol.