
sieve
sieve is a YC Spring 2025 (P25) company. Based in New York, NY, USA. Team of 2.
About sieve
Summary
sieve cleans and structures financial data for hedge funds and investment firms, replacing manual engineer review loops with an API that plugs directly into existing data pipelines. It combines AI extraction with human expert review to produce validated, structured data from unstructured sources such as websites, PDFs, and filings. The product is also accessible via Excel for teams that work outside code.
Business model
API access with a free-to-try entry point for the web scraping agent
Go-to-market
Targets hedge funds and investment firms; buyers integrate via four lines of code into existing pipelines, or try the web scraping agent self-serve without a sales conversation.
From the Y Combinator listing
AI + human review to solve data cleaning - accessible via API or Excel
sieve solves data cleaning for hedge funds and investment firms by letting them get clean data in four lines of code. Currently, their data pipelines have conditions that raise for human review, which literally send an email to engineers with data that needs to be reviewed. We provide an API that integrates directly into their existing pipeline - instead of raising for human review, they can send all the same information to our API and get clean, high-quality data back. By using our AI agents built specifically for financial data collection, along with expert-in-the-loop review, we provide our clients with clean, validated data at a scale and level of quality that wasn't achievable before.
Facts
- B2B / B2B -> Finance and Accounting
- New York, NY, USA
- 2
- Active
- Early
Founders (1)
- Nicole Lu
Score every batch against your own thesis
GPAgent's sourcing agent reads every company in a batch, scores each one against your fund's thesis in a private workspace, and lines up the founders worth meeting before Demo Day. You decide who to contact. Your scores, notes, and pipeline never appear on these pages.
How Accelerator intelligence works