funding_articleMay 20, 2026Confidence: high
sieve | Y Combinator
YC S25 AI + human review data cleaning for hedge funds and investors.
Affected score: yesObserved: May 20, 2026Round: Pre-Seed
raisedpre-seed
s
sieve
Pre-SeedMarket data is refreshed once per day from public sources. Information may be incomplete or outdated — verify independently before making decisions. This is not investment advice.
Beta
DealFlow OS uses public web data and automated enrichment. Research may be incomplete, outdated, or incorrect. Verify important information before making investment or outreach decisions.
Investor read
Evidence-bound summary — expand sections for movement, risks, and signals.
Memo snapshot · May 20, 2026, 5:44 PM
Beta
DealFlow OS uses public web data and automated enrichment. Research may be incomplete, outdated, or incorrect. Verify important information before making investment or outreach decisions.
What they do
sieve - AI Scale, Human Quality
Funding
Latest: Pre-seed. Investors: Y Combinator. (High).
Quick read
- •sieve - AI Scale, Human Quality
- •Reported angle: About Sieve - Y Combinator AI Data Quality Platform
- •Indexed activity snapshot: 1 funding‑related row(s), 0 hiring‑related, 0 GitHub‑tagged, 10 product/news‑style — scoring reflects corpus coverage only.
Stage
Seed (YC)
Evidence summary
Verified facts
- •sieve - AI Scale, Human Quality
- •Reported angle: About Sieve - Y Combinator AI Data Quality Platform
- •Indexed activity snapshot: 1 funding‑related row(s), 0 hiring‑related, 0 GitHub‑tagged, 10 product/news‑style — scoring reflects corpus coverage only.
Recent movers
- •May 20, 2026 · ycombinator.com — sieve | Y Combinator
- •May 20, 2026 · usesieve.com — About Sieve - Y Combinator AI Data Quality Platform
- •May 11, 2026 · Blog / news — Eliminating 3+ hours of daily manual SEC filing verification | sieve Case Study
+5 more in Recent movement below
- •May 20, 2026 · ycombinator.com — sieve | Y Combinator
- •May 20, 2026 · usesieve.com — About Sieve - Y Combinator AI Data Quality Platform
- •May 11, 2026 · Blog / news — Eliminating 3+ hours of daily manual SEC filing verification | sieve Case Study
- •May 11, 2026 · Blog / news — Unlocking historical time-series data from custom publications | sieve Case Study
- •May 11, 2026 · Blog / news — Tracking small-cap financials beyond Bloomberg's coverage | sieve Case Study
- •May 11, 2026 · Blog / news — Eliminating 5:30 AM pagerduty alerts from data pipeline breakages | sieve Case Study
- •May 11, 2026 · Blog / news — ESG data collection | sieve Case Study
- •May 11, 2026 · Blog / news — Building global traffic datasets from fragmented port records | sieve Case Study
- •Y Combinator
Funding
Latest: Pre-seed. Investors: Y Combinator. (High).
Hiring
No hiring/careers evidence indexed (Low).
GitHub
No GitHub‑linked evidence indexed (Low).
Product / news
10 product/news‑styled row(s); headline risk without filings (High).
Traffic / social
No traffic/social evidence indexed (Low).
Funding & hiring signals
ReferenceMay 1, 2020Confidence: medium
KlearNow raises $16 million to bring customs clearance industry into the digital age
Affected score: yesObserved: May 1, 2020Amount: $16 m
raises
Open roles (indexed)
No open roles indexed yet.
Failed or blocked links
- public_page:_pressnot_foundLast checked Mon, May 11, 09:07 AM
HTTP 404
- public_page:_newsnot_foundLast checked Mon, May 11, 09:07 AM
HTTP 404
- public_page:_jobsnot_foundLast checked Mon, May 11, 09:07 AM
HTTP 404
- public_page:_companynot_foundLast checked Mon, May 11, 09:07 AM
HTTP 404
- public_page:_careersnot_foundLast checked Mon, May 11, 09:07 AM
HTTP 404
DealFlow growth score
47.0Moderate public activity signal
7D+0%
30D+0%
Needs Review
The score is an algorithmic estimate based on observed public company-level signals. It may be incomplete, stale, or inaccurate and is not investment, legal, tax, or business advice.
Source health
- public_market_enrichmentokLast checked Mon, May 11, 09:07 AM
- public_page:_blog_verifying-filing-dataokLast checked Mon, May 11, 09:07 AM
- public_page:_blog_unlocking-historical-time-series-dataokLast checked Mon, May 11, 09:07 AM
- public_page:_blog_tracking-small-cap-financialsokLast checked Mon, May 11, 09:07 AM
- public_page:_blog_extracting-accurate-commodities-export-dataokLast checked Mon, May 11, 09:07 AM
- public_page:_blog_esg-data-collectionokLast checked Mon, May 11, 09:07 AM
- public_page:_blog_building-global-traffic-datasets-fragmented-port-recordsokLast checked Mon, May 11, 09:07 AM
- public_page:_blog_bitcoin-metric-trackingokLast checked Mon, May 11, 09:07 AM
- public_page:_blogokLast checked Mon, May 11, 09:07 AM
- public_page:_aboutokLast checked Mon, May 11, 09:07 AM
- public_page:_okLast checked Mon, May 11, 09:07 AM
- public_page:homeokLast checked Mon, May 11, 09:07 AM
DealFlow score momentum
477D +030D +0
100500
More runs will build history.
The score is an algorithmic estimate based on observed public company-level signals. It may be incomplete, stale, or inaccurate and is not investment, legal, tax, or business advice.
Signal breakdown
Latest momentum signal per category. Expand a card to inspect raw payloads.
Public source summary
- Total evidence rows
- 12
- Latest evidence
- Wed, May 20, 05:44 PM
Source types found
blogcompany_sitefunding_articlepress
Strongest / recent news-style rows
sieve | Y Combinator
Wed, May 20, 05:44 PM · confidence 88%high quality
https://www.ycombinator.com/companies/sieveaiAbout Sieve - Y Combinator AI Data Quality Platform
Wed, May 20, 05:44 PM · confidence 85%high quality
https://www.usesieve.com/aboutLaunch YC: sieve
Wed, May 20, 05:44 PM · confidence 85%medium quality
https://www.ycombinator.com/launches/NY1-sieve-helps-hedge-funds-extract-and-clean-data
Public signal timeline
Newest first · 12 event(s)
1
Wed, May 20, 05:44 PM · company_site · 85% · verified_publichigh quality
Source ↗sieve - AI Scale, Human Quality
Official product homepage.
2
Wed, May 20, 05:44 PM · funding_article · 88% · verified_publichigh quality
Source ↗sieve | Y Combinator
YC S25 AI + human review data cleaning for hedge funds and investors.
3
Wed, May 20, 05:44 PM · press · 85% · verified_publichigh quality
Source ↗About Sieve - Y Combinator AI Data Quality Platform
About page citing YC backing and investor section.
4
Mon, May 11, 09:07 AM · blog · 70% · publichigh quality
Source ↗Eliminating 3+ hours of daily manual SEC filing verification | sieve Case Study
Source: Blog / news
A team of quant researchers was plagued by missing and incorrect data in an expensive feed of SEC filing data. Learn how sieve saves multiple hours of research work per day
5
Mon, May 11, 09:07 AM · blog · 70% · publichigh quality
Source ↗Unlocking historical time-series data from custom publications | sieve Case Study
Source: Blog / news
Discover how sieve empowers hedge funds to extract accurate, validated historical time-series data from obscure, periodically published reports, transforming unstructured information into actionable intelligence.
6
Mon, May 11, 09:07 AM · blog · 70% · publichigh quality
Source ↗Tracking small-cap financials beyond Bloomberg's coverage | sieve Case Study
Source: Blog / news
Small companies are often not tracked/covered by Bloomberg. See how sieve made their data available and programmatically usable for one investor
7
Mon, May 11, 09:07 AM · blog · 70% · publichigh quality
Source ↗Eliminating 5:30 AM pagerduty alerts from data pipeline breakages | sieve Case Study
Source: Blog / news
See how sieve addresses data quality issues that previously led to production breakages/stoppages for a group of commodities-focused investors
8
Mon, May 11, 09:07 AM · blog · 70% · publichigh quality
Source ↗ESG data collection | sieve Case Study
Source: Blog / news
See how sieve saved a top ESG investor weeks of work collecting and verifying ESG data pulled from financial filings
9
Mon, May 11, 09:07 AM · blog · 70% · publichigh quality
Source ↗Building global traffic datasets from fragmented port records | sieve Case Study
Source: Blog / news
Discover how sieve empowers hedge funds to build investment-grade trade datasets by sourcing, extracting, and normalizing fragmented data across formats, languages, and source structures.
10
Mon, May 11, 09:07 AM · blog · 70% · publichigh quality
Source ↗Automating bitcoin mining metrics from manual PDF transcription | sieve Case Study
Source: Blog / news
See how sieve helped an investor pull reliable, properly-formatted data from sell-side reports
11
Mon, May 11, 09:07 AM · blog · 70% · publichigh quality
Source ↗Case Studies & Blog - AI Data Extraction Success Stories | sieve
Source: Blog / news
Real-world examples of how hedge funds use sieve to extract and validate data from SEC filings, commodities reports, and financial documents. Learn best practices for AI-powered data extraction, automation strategies, and success stories from investment firms achieving human-level accuracy.
12
Wed, May 20, 05:44 PM · press · 85% · verified_publicmedium quality
Source ↗Launch YC: sieve
YC launch for hedge-fund data extraction.
Official / company site
1 row(s)
company_site·Wed, May 20, 05:44 PM·Confidence 85%high qualityverified_public
sieve - AI Scale, Human Quality
Official product homepage.
https://www.usesieve.com/News
2 row(s)
press·Wed, May 20, 05:44 PM·Confidence 85%high qualityverified_public
About Sieve - Y Combinator AI Data Quality Platform
About page citing YC backing and investor section.
https://www.usesieve.com/aboutpress·Wed, May 20, 05:44 PM·Confidence 85%medium qualityverified_public
Launch YC: sieve
YC launch for hedge-fund data extraction.
https://www.ycombinator.com/launches/NY1-sieve-helps-hedge-funds-extract-and-clean-dataFunding / news
1 row(s)
funding_article·Wed, May 20, 05:44 PM·Confidence 88%high qualityverified_public
sieve | Y Combinator
YC S25 AI + human review data cleaning for hedge funds and investors.
https://www.ycombinator.com/companies/sieveaiBlog
8 row(s)
blog·Mon, May 11, 09:07 AM·Confidence 70%high qualitypublic
Eliminating 3+ hours of daily manual SEC filing verification | sieve Case Study
Source name: Blog / news
A team of quant researchers was plagued by missing and incorrect data in an expensive feed of SEC filing data. Learn how sieve saves multiple hours of research work per day
https://www.usesieve.com/blog/verifying-filing-datablog·Mon, May 11, 09:07 AM·Confidence 70%high qualitypublic
Unlocking historical time-series data from custom publications | sieve Case Study
Source name: Blog / news
Discover how sieve empowers hedge funds to extract accurate, validated historical time-series data from obscure, periodically published reports, transforming unstructured information into actionable intelligence.
https://www.usesieve.com/blog/unlocking-historical-time-series-datablog·Mon, May 11, 09:07 AM·Confidence 70%high qualitypublic
Tracking small-cap financials beyond Bloomberg's coverage | sieve Case Study
Source name: Blog / news
Small companies are often not tracked/covered by Bloomberg. See how sieve made their data available and programmatically usable for one investor
https://www.usesieve.com/blog/tracking-small-cap-financialsblog·Mon, May 11, 09:07 AM·Confidence 70%high qualitypublic
Eliminating 5:30 AM pagerduty alerts from data pipeline breakages | sieve Case Study
Source name: Blog / news
See how sieve addresses data quality issues that previously led to production breakages/stoppages for a group of commodities-focused investors
https://www.usesieve.com/blog/extracting-accurate-commodities-export-datablog·Mon, May 11, 09:07 AM·Confidence 70%high qualitypublic
ESG data collection | sieve Case Study
Source name: Blog / news
See how sieve saved a top ESG investor weeks of work collecting and verifying ESG data pulled from financial filings
https://www.usesieve.com/blog/ESG-data-collectionblog·Mon, May 11, 09:07 AM·Confidence 70%high qualitypublic
Building global traffic datasets from fragmented port records | sieve Case Study
Source name: Blog / news
Discover how sieve empowers hedge funds to build investment-grade trade datasets by sourcing, extracting, and normalizing fragmented data across formats, languages, and source structures.
https://www.usesieve.com/blog/building-global-traffic-datasets-fragmented-port-recordsblog·Mon, May 11, 09:07 AM·Confidence 70%high qualitypublic
Automating bitcoin mining metrics from manual PDF transcription | sieve Case Study
Source name: Blog / news
See how sieve helped an investor pull reliable, properly-formatted data from sell-side reports
https://www.usesieve.com/blog/bitcoin-metric-trackingblog·Mon, May 11, 09:07 AM·Confidence 70%high qualitypublic
Case Studies & Blog - AI Data Extraction Success Stories | sieve
Source name: Blog / news
Real-world examples of how hedge funds use sieve to extract and validate data from SEC filings, commodities reports, and financial documents. Learn best practices for AI-powered data extraction, automation strategies, and success stories from investment firms achieving human-level accuracy.
https://www.usesieve.com/blogPrivate workspace
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