This document summarizes a survey of China's local independent design houses (IDH) conducted in 2010-2011. It finds that most local IDHs have 10-50 employees, spend 4-6% of revenue on R&D, and saw sales growth of 20-60% in 2010. The survey investigates these companies' mobile phone, 3G, smartphone, and tablet businesses and lists the top 20 by sales.