It's surprising to me that corporate recruiting has not recovered back to 2008 levels. After 4 years, it appears that 10-15 companies is the new normal for Harvard. One presumes that full-bore large-company hiring of entry-level research chemists will be back for good when Harvard sees a big increase. It does not look good now.
(Those who want to see other universities' corporate recruiting schedules, click here for a look at Stanford in 2010 and here for MIT's corporate recruiting from 2002-2011.