Expert-curated training datasets and agent evaluation environments for AI labs
AfterQuery is a Y Combinator (W25) applied research lab that builds high-quality, expert-generated training datasets, RL environments, and evaluation tooling for frontier AI labs. With a network of nearly 100,000 domain experts - developers, attorneys, and other professionals - it competes with Mercor and Surge in the model-training data market. Rather than grading whether a model answers accurately, it trains models and agents to work the way a practitioner would, which the company describes as encoding the patterns, decisions and reasoning of the world's best practitioners; it has named Nvidia, Legora and Korean AI lab Motif Technologies as customers. The San Francisco company announced a $30M Series A at a $300M valuation in April 2026, saying it had reached a $100M annualized revenue run rate, and Forbes reported on 2026-09-01 that a new round valued it at $3.2B - more than 10x in five months, and per YC partner Gustaf Alstromer the fastest launch-to-unicorn in YC history. Its founders, 22 and 23 years old, went through YC's Winter 2025 batch.
AI📍 San Francisco, CAFounded 2024
Current Valuation
$3.2B
as of 2026-Q3
UNICORN
QL Price
$2.9B
-8% vs last round
QuantLogix's current estimate for AfterQuery, published 2026-10-07 — below the last disclosed round of $3.2B (2026-Q3).
Confidence
medium
Basis
comps led
What backs this price
Last disclosed round
$3.2B
2026-Q3
weight 0.99
Public-company comparables
$1.4B
2026-04
weight 0.17
How this price has held up
No round has priced for AfterQuery since QuantLogix began publishing a price for it, so there is nothing to grade yet. The claim above is on the record from 2026-10-07 and will be graded against the next priced round. See the full accuracy record →
Which publicly-traded funds already hold it, what $10,000 buys, and whether any route is open to you.
Cite this price as QuantLogix QL Price, AfterQuery, 2026-10-07 (681dec779ce8f7f0).
The id pins this exact claim, so a citation stays checkable after the price moves.
Model estimate for research — not a quote, target price, or investment advice.
IPO Outlookprivate
Is AfterQuery going public?
No. AfterQuery is private and has not filed to go public. There is no S-1 on file.
What is AfterQuery's valuation in 2026?
AfterQuery is valued at $3.2B as of 2026-Q3, set by its Growth round (reported) (Sep 2026). That is the last confirmed mark, not a live price — private shares do not trade continuously.
Has AfterQuery filed an S-1?
No public S-1 is on file for AfterQuery.
Who are AfterQuery's investors?
AfterQuery's investors include Y Combinator.
How much has AfterQuery raised?
AfterQuery has raised $30M in total across 2 disclosed rounds, most recently a Growth round (reported) in Sep 2026.
Is AfterQuery publicly traded — can you buy AfterQuery stock?
No. AfterQuery is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for AfterQuery on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
Founded
2024
HQ
San Francisco, CA
Total Raised
$30M
Est. Revenue
$100M (2026-04)
Growth
Reached a $100M annualized revenue run rate by April 2026 (company blog), ~18 months after the Y Combinator W25 batch. Reported valuation went from $300M in April 2026 to $3.2B in September 2026 - a >10x step in five months.
IPO Status
none
Fundraising Status
Growth round (reported) · 1 mo ago
noneTotal raised $30M2 disclosed rounds
Growth round (reported) Impact
Round Size
Primary financing announced
Post-Money Valuation
$3.2B
Company-announced mark
Valuation Step-Up
+966.7%
vs Series A at $300M
Disclosed Funding
$30M
Cumulative disclosed rounds
Step-up compares disclosed post-money valuations. Round / post-money is a financing-size ratio, not an ownership or dilution estimate.
Growth & Valuation
Valuation across funding rounds
Charts built from publicly disclosed funding rounds and revenue estimates. Approximate, not real-time, not investment advice.
Funding History
Round
Amount
Date
Lead Investor
Post-Money
Growth round (reported)
—
Sep 2026
—
$3.2B
Series A
$30M
Apr 2026
—
$300M
Vertical Intelligence — AI / ML
Open models
0
Downloads (30d)
0
across all models
Followers
25
Attributed to Hugging Face organization "AfterQuery" as of 2026-10-04. Open-weights footprint only — closed-model usage is not publicly measurable. Verify on Hugging Face ↗
Talent Signal
Hiring trend
▲ Hiring uptrend
+29% vs 2026-08
Open roles
36
via ashby
Product-build share
39%
engineering, research, product, design
Trajectory
expanding
balanced build + GTM — 39% builders vs 61% go-to-market/G&A — scaling both sides.
No tracked executive churn; open roles trending up.
Counted from AfterQuery's live job board as of 2026-09-15; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
Investors
Y Combinator
Products
Expert-curated training datasets
Reinforcement-learning agent environments
AI evaluation infrastructure
Competitors
Mercor · Surge AI · Scale AI · Handshake AI · micro1
AIData LabelingY CombinatorRL EnvironmentsRecently Funded
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2026-Q3. Refreshed quarterly.