itwbennett writes "According to data from the Bureau of Labor Statistics, in 2012 about 22% of computer programmers, software and web developers in the United States were female. That number comes from the Current Population Survey, which is based on interviews with 60,000 households. But Tracy Chou, an engineer at Pinterest, thinks the number is actually much lower than that. And last month she created a GitHub project to collect data on how many females are employed full-time writing or architecting software. Even at this early point, the data is striking: Based on data reported for 107 companies, 438 of 3,594 engineers (12%) are female. Here's how some well-known companies stack up."