The multi-agent AI platforms market was valued at $2.90 billion in 2025 and is projected to reach $129.38 billion by 2035, expanding at a 46.22% CAGR from 2026 to 2035, SNS Insider said. Growth is being driven by enterprise demand for autonomous AI systems that coordinate multiple agents across business processes, decision-making, software development, customer service and IT operations. Generative AI, agentic workflows, cloud computing, agent-to-agent messaging protocols and autonomous task execution are supporting adoption, while scalability, security, reliability and compatibility with enterprise software remain key requirements. Software platforms held about 68% of the market in 2025, multi-agent orchestration platforms accounted for about 35%, cloud-based deployment represented about 73%, large enterprises held about 72%, and manufacturing and automotive contributed about 25%. North America was the largest regional market with approximately 41%, while Asia-Pacific was the fastest-growing region. Professional services, autonomous-agent software as a service, on-premises deployment, small and medium-sized enterprises and healthcare and life sciences are forecast to be the fastest-growing segments in their respective categories. The United States market was valued at $0.93 billion in 2025 and is projected to reach $35.90 billion by 2035. Microsoft expanded its enterprise AI ecosystem through Microsoft 365 Copilot Wave 3 and Agent 365, while Google expanded multi-agent capabilities through Google Antigravity 2.0.