Nirmit Arora is Co-Founder and CTO at Ritivel, an AI-native platform for regulatory document submission in life sciences. Ritivel is part of Y Combinator's Winter 2026 batch and deploys AI agents that draft CTDs, CSRs, INDs, and BLAs in minutes instead of weeks.

Nirmit previously worked at Microsoft Research focused on making agentic systems safe. Along with his co-founders Gunin Gupta and Pavan Kalyan Tankala, they built AI copilots at Microsoft Research before founding Ritivel.

The founding team conducted 50+ conversations with pharma professionals to discover the critical bottleneck in regulatory submissions. Ritivel's AI agents generate comprehensive first drafts in Microsoft Word with word-level citations, integrating with SharePoint, Veeva, and Outlook.

Ritivel was founded in 2025 and is based in San Francisco with 3 employees. The company helps pharmaceutical companies accelerate drug approvals, with each month of delay costing pharma companies approximately $45M in lost revenue.

Ritivel's platform transforms regulatory workflows by automating document gathering, drafting, and follow-ups, allowing teams to focus on review and refinement. The solution addresses a major industry challenge where regulatory teams synthesize thousands of pages of clinical data for FDA submissions.