The Mighty Has Fallen

I just got done watching today's Jeopardy! and, as you may have heard by now, Ken Jennings, who has won over $2,500,000 in his 75 appearances has finally lost. He would have remained the champion had he correctly answered the Final Jeopardy question, which I got correct. The final question, in the category Business and Industry was:

Most of this firm's 70,000 seasonal white-collar employees only work four months a year.

The answer to the question is in the comments for this entry.