New York-based Probook, which is building an AI operating system for home service businesses, raised a $34M Series A led by a16z and a $6M seed led by Sequoia (Lily Mae Lazarus/Fortune)

<a href="https://fortune.com/2026/06/23/exclusive-this-startup-wants-to-be-the-ai-brain-for-home-services-and-it-just-raised-40-million-from-sequoia-and-a16z/"><img align="RIGHT" border="0" hspace="4" src="http://www.techmeme.com/260624/i4.jpg" vspace="4" /></a> <p><a href="https://www.techmeme.com/260624/p4#a260624p4" title="Techmeme permalink"><img height="12" src="http://www.techmeme.com/img/pml.png" style="border: none; padding: 0; margin: 0;" width="11" /></a> Lily Mae Lazarus / <a href="http://www.fortune.com/">Fortune</a>:<br /> <span style="font-size: 1.3em;"><b><a href="https://fortune.com/2026/06/23/exclusive-this-startup-wants-to-be-the-ai-brain-for-home-services-and-it-just-raised-40-million-from-sequoia-and-a16z/">New York-based Probook, which is building an AI operating system for home service businesses, raised a $34M Series A led by a16z and a $6M seed led by Sequoia</a></b></span>&nbsp; &mdash;&nbsp; George Eliadis really knows his way around a pressure washer.&nbsp; &mdash;&nbsp; The 24 year-old spent six summers pressure washing houses in upstate New York with his dad.</p>