As you might expect, the companies at the top of the list are large enough that they tend to stay somewhere near the top every year. A merger might create a new company that’s large enough to break into the top 10 or top five, but for the most part, you’ll see the same companies in pretty close to the same order at the top of the list. If you were to look at last year’s list and this year’s, the first thought that comes to mind might be something like, “Oh, nothing much has changed.”