Arun ArumugamAgent Engineering

Startups

ThemesJSON

rising

Computers and runtimes for fleets of agents

Developers now run many coding agents for hours at a time, and each one needs its own lasting, isolated computer and network.

  1. New this weekYC F26Spotted ThemeMaritimeFully managed cloud that gives each AI agent its own persistent VM, from $1 per agent per month.
  2. New this weekYC F26Spotted ThemeherdrOpen-source runtime that coding-agent sessions run on.
  3. New this week$38M Series A led by a16zreportedSpotted Themedoxx.netPrivate networks built around AI agents.

Security, risk and insurance for agents

Companies now treat agent risk as something to test, control and insure, and this theme drew the biggest round of the month.

  1. New this week$255.5M Series B co-led by a16z and AccelSpotted ThemeArmadinAutonomous security testing: agent swarms that find and validate exploitable attack paths for enterprises.
  2. New this week$25M Series ASpotted ThemeReinSecurity platform for agentic AI that sees beyond the prompt.
  3. New this week$10M seed led by Base10, Abstract and 8VCreportedSpotted ThemeHarborMeasures, mitigates and insures the risks of AI agents for banks, insurers and other regulated firms.

Agents built for one industry

Vertical agents replace slow back-office work, and customers are investing in the startups themselves.

  1. New this week$30M led by Conversion CapitalSpotted VestaAI-native mortgage loan origination system with agents across lending workflows.
  2. New this week$17M Series ASpotted Siena AIEmpathic customer-experience agents for commerce brands.
  3. New this weekYC F26Spotted Grep AISelf-improving agents that move repeated steps from model calls into code, getting cheaper at the same task.

Agents running sales and customer success

Agents now run go-to-market and post-sale work end to end, from pipeline to renewal.

  1. New this weekYC F26Spotted Frontrunner'Cursor for GTM': AI agents for sales teams.
  2. New this weekSpotted QuivlyAI workforce for post-sales, from onboarding to renewal.

Open models moving into enterprises

Open-model labs are raising big rounds and packaging agents for business users.

  1. New this week$90M at a $1.5B valuationreportedSpotted ThemeNous ResearchOpen-model lab behind Hermes, now selling Hermes for Businesses agents.
  2. New this week$500M+ after planned Meta acquisition fell throughreportedSpotted ManusGeneral-purpose autonomous agent that does hands-on work for users and teams.