Sieve Data Inc.

Executive Summary

Sieve Data Inc. is a YC X25-backed seed-stage startup (Spring 2025) building an AI + human-in-the-loop financial data extraction platform targeting hedge funds. The founding team has genuine domain credibility — Nicole Lu's Citadel background gives her direct insider knowledge of the pain she's solving — and the product is shipped and functional. However, the claims largely hold up only at the product level: no named customers, no disclosed revenue, and no verifiable accuracy benchmarks exist yet. The single biggest risk is the competitive landscape: Daloopa just raised its third round ($55.9M total as of July 2025), covers the same market with the same Excel add-in approach, and is now integrating with Anthropic's Claude — leaving Sieve fighting for the same hedge fund wallet with a fraction of the capital and no established data moat.