Raised $55M across disclosed rounds.[2][6]

Series A closed August 2026, led by Sequoia Capital.[2][5][7][16]

post-money valuation is not publicly disclosed.

Named investors include Conviction, Bessemer Venture Partners, Radical VC, BoxGroup, Jeff Dean, Fei-Fei Li, Sequoia Capital, NVIDIA.[2][3][5][6][7][9][16]

Ronak Malde, CEO and Co-founder[2][3][5][8][9][16][26]

Michael Elabd, Co-founder[2][3][5][8][9][16][26]

Arjun Karanam, Co-founder[2][3][5][8][9][16][26]

Weights & Biases · wandb.ai · Named in the same competitive landscape list for Trajectory, so a buyer evaluating a continual learning and model improvement platform would weigh W&B's experiment tracking and management tooling for the same model development workflow.[24]

Arize AI · arize.com · Listed as a Trajectory competitor; a buyer capturing production traces and telemetry to improve models would weigh Arize's production monitoring and observability for the same telemetry and model quality job.[24]

Braintrust · braintrust.dev · Listed as a Trajectory competitor; the same buyer iterating on model quality from production data would evaluate Braintrust's evaluation and iteration platform for the same eval and improvement workflow.[24]

LangChain · langchain.com · Listed as a Trajectory competitor; teams building agentic products would weigh LangChain's LLM application debugging, testing, and monitoring against Trajectory's harness and trace optimization for the same agent development workflow.[24]

Lamini · lamini.ai · Listed as a Trajectory competitor; a buyer seeking to customize and deploy models on its own data would weigh Lamini's enterprise fine-tuning and deployment platform for the same model customization job.[24]

The customer proof is company-sourced only. No independent source in this ledger confirms it.[10]

Ask for one referenceable production customer.

Not a recommendation. The first thing this ledger cannot answer.

Filled in the side panel for invited readers. This card carries sourced facts only.