# Leeham Company

> Leeham Co\. provides independent aviation consulting, aircraft modeling, and competitive intelligence for lessors, airlines, and OEMs worldwide\.

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## Pages
- [Home](https://leeham.net/)
- [Aircraft Performance and Cost Model \(APCM\)](https://leeham.net/apcm/)
- [Contact](https://leeham.net/contact/)
- [About](https://leeham.net/about/)
- [Competitive Intelligence](https://leeham.net/competitive-intelligence/)

## People
- [Bjorn Fehrm](https://leeham.net/people/bjorn-fehrm/)
- [Scott Hamilton](https://leeham.net/people/scott-hamilton/)

## Optional
- [Sitemap index](https://leeham.net/sitemap_index.xml)