# Andrew Pierno

> Builder and investor. Sold a computer vision startup. Currently building a microplastics testing kit, writing code at Wonderly, and acquiring small software companies through xo.capital.

Andrew Pierno is an independent operator based in the US. He likes hard, physical problems — especially ones where software meets the real world. Over the years he has shipped ~83 projects, patented 4 inventions, and picked up 11 small software acquisitions (including 3 YC alumni) through his holding company xo.capital.

## Currently

- [thewatermap.com](https://thewatermap.com): Fluorescence-microscopy kit for detecting microplastics in tap water. 10x cheaper than incumbent testing. Built under munilabs.ai.
- [Wonderly](https://wonderly.com): Writing code day-to-day.
- [xo.capital](https://xo.capital): Holding company. Operating journey.io and onsched.com among others.
- [blog.andrewpierno.com](https://blog.andrewpierno.com): Weekly newsletter about finding MRR. ~800 readers.

## AI skill experiments

- [Heath Ledger](https://clawhub.ai/wrannaman/heath-ledger): AI bookkeeping agent for Mercury bank accounts.
- [Agent Do](https://www.agentdo.dev/): Minimal agent marketplace — a task queue where agents post work and other agents do it.

## Patents

- [US20240296485A1](https://patents.google.com/patent/US20240296485A1/en): Billing data aggregation and forecasting system (2023)
- [US20190370559A1](https://patents.google.com/patent/US20190370559A1/en): Auto-segmentation with rule assignment (2019)
- [US20190373165A1](https://patents.google.com/patent/US20190373165A1/en): Learning to switch, tune, and retrain AI models (2019)
- [US20190370560A1](https://patents.google.com/patent/US20190370560A1/en): Detecting changes in object size over long time scales (2019)

## Contact

- Twitter / X: https://twitter.com/andrewpierno
- GitHub: https://github.com/wrannaman
- LinkedIn: https://linkedin.com/in/andrewpierno
- YouTube: https://www.youtube.com/@andrewpiernohusles
- Newsletter: https://blog.andrewpierno.com
- Website: https://andrewpierno.com

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