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sieve

YC X25

New York City, US · Founded 2025 · 2 employees · 3 known investors

Sieve provides a data quality platform that combines AI and human validation to clean and verify financial datasets for investment teams. The company serves asset managers, hedge funds, investment banks, family offices, and other financial institutions seeking to reduce time and cost spent on data validation and remediation.

Founders & leadership· Y Combinator alumni (X25)

sieve was founded in 2025 by Nicole Lu.

NLNicole Lu
Nicole LuinCo-Founder, CEONicole Lu worked at Citadel in research, trading, and data science roles, served as a management consultant at McKinsey, and developed cancer detection algorithms at the Broad Institute. She is co-founder and CEO of sieve, a company focused on data cleaning for financial firms.

Investors · 3

Competitors · 2

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Frequently asked questions

What does sieve do?
Sieve provides a data quality platform that combines AI and human validation to clean and verify financial datasets for investment teams. The company serves asset managers, hedge funds, investment banks, family offices, and other financial institutions seeking to reduce time and cost spent on data validation and remediation.
Who founded sieve?
sieve was founded by Nicole Lu in 2025.
Who are sieve's investors?
sieve's investors include Financial Venture Studio, Restive Ventures, Y Combinator.
Where is sieve headquartered?
sieve is headquartered in New York City, US.