Ritivel is an AI-native workspace for regulatory and medical writing teams at life sciences companies. The platform uses AI agents to draft regulatory documents such as CTDs, CSRs, INDs, and BLAs in minutes rather than weeks. Key capabilities include automated document drafting in Microsoft Word with FDA formatting compliance, intelligent document retrieval from SharePoint and Veeva, and automated follow-ups via Outlook integration. Ritivel was founded in 2025 and is part of Y Combinator's Winter 2026 batch.