# Kyle Mack (slim)

> Kyle Mack is co-founder, Middesk of Inc.. Middesk on Anchor Terminal, with grades, an about and public profiles.

- Full: https://www.anchorterminal.com/people/kyle-mack/index.md (~950 tokens) · this version ~630 tokens · JSON https://www.anchorterminal.com/people/kyle-mack/index.json · canonical https://www.anchorterminal.com/people/kyle-mack/
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-28
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Co-founder, Middesk, Inc..

Kyle Mack is co-founder and CEO of Middesk, a business identity platform for verifying and monitoring businesses, from Y Combinator's Winter 2019 batch.

- LinkedIn: https://www.linkedin.com/in/kyle-mack-587bbb4b/

## What Kyle builds

- [Middesk](https://www.anchorterminal.com/tools/middesk.md), graded C, 59.1/100, in Identity & business verification. Business verification API from Middesk in San Francisco. It checks US and international businesses against registry, tax ID, sanctions and watchlist records, monitors them for changes, and files liens and state tax registrations, over REST and a hosted MCP server. Co-founder, Middesk, Inc., researched 2026-10-26.

## Works with

- [Kurt Ruppel](https://www.anchorterminal.com/people/kurt-ruppel/), Co-founder, Middesk, Inc.

## Backed by

- [Y Combinator](https://www.anchorterminal.com/investors/y-combinator/)
- [Insight Partners](https://www.anchorterminal.com/investors/insight-partners/)
- [Canapi Ventures](https://www.anchorterminal.com/investors/canapi-ventures/)
- [Sequoia Capital](https://www.anchorterminal.com/investors/sequoia-capital/)
- [Accel](https://www.anchorterminal.com/investors/accel/)
- [Gaingels](https://www.anchorterminal.com/investors/gaingels/)

## Questions

### Who is Kyle Mack?

Kyle Mack is co-founder and CEO of Middesk, a business identity platform for verifying and monitoring businesses, from Y Combinator's Winter 2019 batch.

### What does Middesk, Inc. make?

Anchor Terminal lists Middesk from Middesk, Inc..

### Who has invested in Middesk, Inc.?

The sources our research read name Y Combinator, Insight Partners, Canapi Ventures, Sequoia Capital, Accel and Gaingels.

### How are Kyle's tools graded?

Middesk is graded C, 59.1 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.

## Sources

- https://www.ycombinator.com/companies/middesk
- https://www.middesk.com/
- https://www.middesk.com/contact

These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched.