Ten YC F26 companies, all under 25 followers on X when frontrun posted them. Five were under 20 followers on october 23 2026. Five more, posted october 28, had 0, 1, 2, 9 and 24.
None of the ten are on YC companies nobody is following yet, the full F26 list, or the 19 not in the YC directory. The first five are also in the october 23 rundown. Counts below are the ones in the posts, not a later recount.
under 20 followers on october 23
- Verdun (@VerdunAI) · verdun.ai · the world's most advanced security monitoring service. The site says AI agents review camera alarms, and trained operators respond.
- Epsilab (@epsilabrl) · epsilab.com · long-horizon RL environments for real-world agents. Founders: @joannewang_, @OlsenMatthew99, @PFengjiao, @vanders3nn.
- Confetti (@confettibuild) · confetti.build · build hardware with a single prompt. Founder: @lucasyuan007. The site calls it a workbench for turning ideas into hardware.
- Armorer Labs (@armorer_labs) · armorerlabs.com · continuous security verification for AI agents in regulated industries. Founders: @begimher, @cristian_le0. Also on the Black October list.
- Super Powers Mobility (@SPMOffroad) · spm.fun · electric offroad vehicles. Founder: @jp1994194.
under 25 followers on october 28
- OpenCrawl (@getopencrawl) · 0 followers · getopencrawl.com · search infrastructure, built for agents. The site says it crawls hard-to-find data, hosts it, and keeps it current.
- Axonnic (@Axonnic_) · 1 follower · axonnic.com · human dexterity for robots. The site says an EMG sleeve records how a skilled worker does a task, including what cameras miss, and that recording trains the robot.
- 0.security (@0seclabs) · 2 followers · 0.security · the autonomous cybersecurity team. The site says it investigates vulnerabilities, tests defenses, and verifies fixes.
- Evident Machines (@evidentmachines) · 9 followers · evidentmachines.com · real-world benchmarks for electrical engineering. The site also names electronics and mechanical engineering workflows.
- Blinka (@GetBlinka) · 24 followers · banking for U.S. companies operating globally. The account does not list a website.
The summer batch, in the same format, is YC S26 companies by sector. Most of this list is software: AI startups.
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