Nice not for profit people who put you in touch with providers, direct with no middleman. You save money and the locals still do far better.
No financial risk as you pay when you arrive; visit local houses, cruise on a felucca, visit the sights with proper guides who know what they are talking about.
They are based in Germany, but the website is all in English. Also, you can get to Luxor on Easyjet from London, and they can pick you up if you don't fancy the train.
Is this your business?