startup trends, measured
Startup ideas backed by data, not listicles
MarkosWeb tracks 23,934 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.
23,934
companies tracked
6,215
Y Combinator
5,647
Techstars
5,434
Plug and Play
2,270
500 Global
1,076
antler
794
SOSV
523
ef
517
alchemist
356
skydeck
327
seedcamp
241
a16z speedrun
205
pear
204
spc
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 ideas763 new · 1,959 total
- Healthcare and bio startup ideas315 new · 2,067 total
- Robotics and physical world startup ideas305 new · 1,652 total
- Agent infrastructure startup ideas300 new · 580 total
- B2B SaaS startup ideas231 new · 2,817 total
- Fintech startup ideas225 new · 2,102 total
- Consumer startup ideas219 new · 2,989 total
- Climate and energy startup ideas190 new · 1,132 total
- Developer tools startup ideas158 new · 963 total
- AI infra and compute startup ideas130 new · 416 total
- Security and compliance startup ideas121 new · 632 total
- Data for AI startup ideas120 new · 581 total
- Commerce and marketplaces startup ideas117 new · 1,717 total
- Horizontal AI assistants startup ideas96 new · 412 total
- Defense and space startup ideas78 new · 271 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.
21,130 companies classified · last sync 2026-09-08 · sources synced daily