YC DATA · 6,287 COMPANIES · OCTOBER 2, 2026
EARLY SIGNAL · EXPERIMENTAL

What’s moving before it’s confirmed

A faster, noisier read on the same YC data everywhere else on this site: a formation whose YC tag or industry membership jumps over two consecutive batches, well before it clears the four-batch bar the rest of the site requires to call something “accelerating.” It’s a real but modest signal — backtested against the full YC batch history, not asserted. There’s also an even earlier, noisier tier — Whisper — kept on its own page since its open-signal list runs much longer than this one. For a categorically different read with no YC data underneath it at all, see Frontier.

PRECISION87%

Of signals that have had time to resolve, this share went on to become a confirmed accelerating formation.

BASE RATE83%

What an equally-active formation does anyway, whether or not this signal fired — the comparison that matters.

LIFT1.05×

How much better than that baseline this signal actually is. Modest, and stated plainly.

RESOLVED510

Historical firings since Winter 2018 with a known outcome (444 confirmed).

A signal below is unconfirmed — it has not cleared the site’s regular acceleration bar and may never. Read it as “worth watching,” not “worth trusting.” Roughly 13 in 100 won’t pan out, based on every resolved case so far.

SURFACEDW26

Consumer Health Services

YC tag
0 → 6 · new, over 2 batchesnot yet mapped
SURFACEDS25

Data Visualization

YC tag
0 → 6 · new, over 2 batchesnot yet mapped
SURFACEDSp26

Recruiting and Talent

YC industry
0 → 8 · new, over 2 batchesnot yet mapped
SURFACEDSp26

Healthcare Services

YC industry
0 → 12 · new, over 2 batchesnot yet mapped
SURFACEDSp26

Banking and Exchange

YC industry
0 → 6 · new, over 2 batchesnot yet mapped
SURFACEDSp26

Drones

YC industry
0 → 6 · new, over 2 batchesnot yet mapped
SURFACEDSp26

Asset Management

YC industry
0 → 10 · new, over 2 batches
SURFACEDSp25

Databases

YC tag
0 → 8 · new, over 2 batches
SURFACEDSp26

Energy

YC industry
2 → 16 · 8.0× over 2 batchesnot yet mapped
SURFACEDSp26

Aviation and Space

YC industry
2 → 12 · 6.0× over 2 batches
SURFACEDW26

Digital Health

YC tag
2 → 10 · 5.0× over 2 batches
SURFACEDS25

Data Science

YC tag
2 → 8 · 4.0× over 2 batchesnot yet mapped
SURFACEDSp26

Consumer Electronics

YC industry
2 → 8 · 4.0× over 2 batchesnot yet mapped
SURFACEDSp25

Documents

YC tag
2 → 8 · 4.0× over 2 batches
SURFACEDW26

Health Tech

YC tag
4 → 14 · 3.5× over 2 batchesnot yet mapped
SURFACEDW26

Health & Wellness

YC tag
2 → 6 · 3.0× over 2 batches
SURFACEDW26

Content

YC industry
2 → 6 · 3.0× over 2 batchesnot yet mapped
SURFACEDW26

Drones

YC tag
2 → 6 · 3.0× over 2 batchesnot yet mapped
SURFACEDW26

Social Media

YC tag
2 → 6 · 3.0× over 2 batchesnot yet mapped
SURFACEDW25

Retail Tech

YC tag
2 → 6 · 3.0× over 2 batchesnot yet mapped
SURFACEDS25

Retail

YC industry
2 → 6 · 3.0× over 2 batches
SURFACEDSp26

Credit and Lending

YC industry
2 → 6 · 3.0× over 2 batchesnot yet mapped
SURFACEDF25

Proptech

YC tag
2 → 6 · 3.0× over 2 batchesnot yet mapped
SURFACEDSp26

Payments

YC industry
4 → 10 · 2.5× over 2 batches
SURFACEDSp26

Gaming

YC industry
4 → 10 · 2.5× over 2 batchesnot yet mapped
SURFACEDF25

E-commerce

YC tag
4 → 10 · 2.5× over 2 batches
SURFACEDW26

Finance

YC tag
6 → 14 · 2.3× over 2 batches
SURFACEDSp26

Defense

YC industry
8 → 16 · 2.0× over 2 batches
SURFACEDW26

LegalTech

YC tag
4 → 8 · 2.0× over 2 batches
SURFACEDSp26

Construction

YC industry
4 → 8 · 2.0× over 2 batchesnot yet mapped
SURFACEDSp26

Legal

YC industry
8 → 16 · 2.0× over 2 batches
SURFACEDSp26

Infrastructure

YC industry
42 → 84 · 2.0× over 2 batches
SURFACEDF25

Big Data

YC tag
4 → 8 · 2.0× over 2 batches
SURFACEDF25

DevOps

YC tag
4 → 8 · 2.0× over 2 batchesnot yet mapped
SURFACEDSp26

Operations

YC industry
14 → 26 · 1.9× over 2 batches
SURFACEDW26

Compliance

YC tag
8 → 14 · 1.8× over 2 batchesnot yet mapped
SURFACEDSp26

Insurance

YC industry
4 → 7 · 1.8× over 2 batchesnot yet mapped
SURFACEDW26

Data Engineering

YC tag
6 → 10 · 1.7× over 2 batches
SURFACEDW26

Aerospace

YC tag
6 → 10 · 1.7× over 2 batches
SURFACEDSp26

Drug Discovery and Delivery

YC industry
6 → 10 · 1.7× over 2 batchesnot yet mapped
SURFACEDF25

Workflow Automation

YC tag
10 → 16 · 1.6× over 2 batches
SURFACEDW26

Operations

YC tag
8 → 12 · 1.5× over 2 batches
SURFACEDW26

Finance and Accounting

YC industry
12 → 18 · 1.5× over 2 batches
SURFACEDS25

Biotech

YC tag
8 → 12 · 1.5× over 2 batches
SURFACEDSp26

Security

YC industry
12 → 18 · 1.5× over 2 batches
GRANULAR · EDITORIAL

What’s moving inside the broad categories

“Health tech” or “education” doesn’t say much on its own. YC doesn’t tag companies at this granularity, so this list comes from a local embedding model grouping company descriptions into specific clusters instead — things like Coding Agent or Voice Agent rather than “AI.” Unlike the list above, this one carries no precision claim — there are only ~60 of these clusters, far too few to backtest with any real confidence. It’s a plain observation of recent activity, not a validated signal: read it as a curated starting point for your own research.

SURFACEDSp26

Coding Agent

description cluster
64 in the last 2 batches, up from 38not yet mapped
SURFACEDSp26

Healthcare Agents

description cluster
24 in the last 2 batches, up from 12
SURFACEDSp26

Earth Observation

description cluster
16 in the last 2 batches, up from 4not yet mapped
SURFACEDSp26

Supply Chain

description cluster
12 in the last 2 batches, up from 2not yet mapped
SURFACEDSp26

Law Firm

description cluster
8 in the last 2 batches, up from 4not yet mapped
SURFACEDSp26

Drug Discovery

description cluster
6 in the last 2 batches, up from 0
SURFACEDW26

Computer Vision

description cluster
6 in the last 2 batches, up from 2not yet mapped
SURFACEDSp26

Fraud Detection

description cluster
6 in the last 2 batches, up from 0not yet mapped
SURFACEDSp26

Digital Health

description cluster
6 in the last 2 batches, up from 2