# Probook

> AI operating system for home-services dispatch, intake, and customer messaging.

## Why it is interesting

Founder from trades background; dispatch-centric OS used by largest HVAC/plumbing brands.

## Profile

- **Stage:** series-a
- **Status:** private
- **Industries:** generalist-tech
- **Coverage:** full
- **Last updated:** 2026-07-24

## Key facts

- a16z portfolio status: Active
- Seed (2026): $6M led by Sequoia (GlobeNewswire)
- Series A (2026): $34M led by a16z; Sequoia participated (GlobeNewswire)

## Investors in our directory

- https://venturecapitaltracker.com/fund/andreessen-horowitz
- https://venturecapitaltracker.com/fund/sequoia

## Related articles

- https://venturecapitaltracker.com/2026-a16z-hot-portfolio-companies

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Source: https://venturecapitaltracker.com/startup/probook