startup trends, measured
Startup ideas backed by data, not listicles
MarkosWeb tracks 24,251 companies across six accelerator portfolios, classifies each one into a fixed taxonomy, and follows what happens to them next - which clusters are rising, which are crowded, what died and is being rebuilt, and where the windows are open. Start from a trend, a graveyard or a sector, then validate the idea against everyone already building it.
Tell it what you do and it finds ideas that fit you, checks how crowded they already are, and sums up a founding team. Works here, or from your own Claude through the connector.
24,251
companies tracked
6,288
Y Combinator
5,669
Techstars
5,513
Plug and Play
2,277
500 Global
1,089
antler
796
SOSV
524
ef
517
alchemist
357
skydeck
353
a16z speedrun
329
seedcamp
209
spc
205
pear
92
aigrant
33
sequoia_arc
Startup ideas by angle
Four cuts of the same corpus, each answering one question a founder or investor actually asks.
Startup ideas by sector
Every cluster has its own page: companies, share of accelerator intake by year, notable names, recent rounds and federal grants. Sorted by how many companies entered in the last two years.
- Vertical AI agents startup ideas771 new · 2,034 total
- Agent infrastructure startup ideas325 new · 628 total
- Healthcare and bio startup ideas315 new · 2,090 total
- Robotics and physical world startup ideas310 new · 1,683 total
- Fintech startup ideas226 new · 2,127 total
- Consumer startup ideas226 new · 3,018 total
- B2B SaaS startup ideas219 new · 2,834 total
- Climate and energy startup ideas176 new · 1,145 total
- Developer tools startup ideas147 new · 976 total
- AI infra and compute startup ideas140 new · 432 total
- Data for AI startup ideas125 new · 597 total
- Security and compliance startup ideas125 new · 644 total
- Commerce and marketplaces startup ideas109 new · 1,726 total
- Horizontal AI assistants startup ideas100 new · 426 total
- Defense and space startup ideas80 new · 277 total
How to find a startup idea here
- Pick a direction: a rising cluster, a graveyard founders are re-entering, or a sector where AI-native share is jumping.
- Write the idea as a one-liner and run it through Idea Check: who builds it, how many are alive, how crowded the subniche is.
- Check demand against supply in Gaps and Public Money.
- Let Idea Lab write concepts from the cluster's data, or talk to the radar about what you personally can build.
Tools
Idea Check →
Type your idea, see how many tracked startups already build it and how alive they are.
Idea Lab →
Pick a vertical, get concrete startup concepts written from the cluster's real data.
Gaps →
What YC is asking for against how many companies already build there.
Batch Live →
The batch forming right now: who is listed so far and how its mix differs from the last one.
Trends →
Cluster shares across YC batches, from the last two years back to 2009.
Trajectory →
What happened to a cohort over six months: acquired, shut down, repositioned.
Public Money →
What the state funds through grants - and where it diverges from what founders build.
AI Visibility →
How readable these startups are to AI assistants, by cluster, batch and accelerator.
Overlap →
Companies that went through several programs, and founders on their second company.
Startup Digest
A weekly email on where startups and capital are moving: cluster shifts, what happened to last season's companies, open windows, candidate ideas.
21,484 companies classified · last sync 2026-10-04 · sources synced daily