I did, but it still includes local results (it thinks I am in New York City). I signed up for a Google API account and tried the Google custom search engine and searched for "pizza restaurants" and received different results than with Startpage. Startpage tried to sell me NYC pizza.

Google Custom Search: http://i.imgur.com/PLZ79Vk.png?1

Startpage: http://i.imgur.com/5ui5LQc.png