AI funding rounds in March 2025: 17 rounds
- OpenAI raises $40B Growth, . AI models. Led by SoftBank. Builds the GPT family of AI models and the ChatGPT assistant.
- Temporal raises $146M Series C, . Developer tools. Led by Tiger Global. Temporal makes an open-source durable execution platform that keeps long-running application and AI agent workflows running reliably through failures.
- Straiker raises $21M, . Security. Straiker provides security testing and runtime guardrails for enterprise AI applications and agents.
- Splx raises $7M Seed, . Security. Led by LAUNCHub Ventures. SPLX offers automated red-teaming, remediation and monitoring to secure AI agents and chatbots.
- n8n raises a Series B round, . AI infrastructure. Led by Highland Europe. n8n builds a workflow automation and AI agent orchestration platform with a visual builder and fair-code licensing.
- Graphite raises $52M Series B, . Developer tools. Led by Accel. Makes code review tooling for stacked pull requests plus an AI review agent.
- Cognition raises an undisclosed round, . Developer tools. Led by 8VC. Builds Devin, an autonomous AI software engineer, and owns the Windsurf editor.
- telli raises $3.6M Pre-seed, . AI apps. Led by Cherry Ventures, Y Combinator. telli builds AI agents that handle calls and customer-facing operations for B2C companies.
- Omni raises $69M Series B, . Analytics. Led by ICONIQ Growth. Omni is a business intelligence and AI analytics platform built on a shared semantic model.
- Anomalo raises a Strategic round, . Data infrastructure. Anomalo uses machine learning to monitor enterprise data quality across structured and unstructured data.
- Cartesia raises $64M Series A, . AI models. Led by Kleiner Perkins. Cartesia builds real-time voice AI models, including low-latency text to speech, based on state space model research.
- Reflection raises $105M Series A, . AI models. Led by CRV, Lightspeed Venture Partners. Reflection builds open frontier AI models and autonomous coding agents.
- Reflection raises $25M Seed, . AI models. Led by Sequoia Capital, CRV. Reflection builds open frontier AI models and autonomous coding agents.
- Shield AI raises $240M Series F, . Robotics. Led by L3Harris, Hanwha Asset Management. Shield AI builds AI pilot software called Hivemind and autonomous military aircraft such as the V-BAT drone.
- Turing raises $111M Series E, . Data infrastructure. Turing provides coding and reasoning training data plus engineering talent to AI labs and enterprises building AI systems.
- LlamaIndex raises $19M Series A, . AI infrastructure. Led by Norwest Venture Partners. LlamaIndex provides a framework and cloud platform, including LlamaParse, for building AI agents over enterprise documents and data.
- Anthropic raises $3.5B Series E, . AI models. Led by Lightspeed Venture Partners. Builds the Claude family of AI models with a focus on AI safety research.