More than half of the most desirable employers in the country are headquartered in the Bay Area, according an annual ranking released this week by LinkedIn.
There are 19 public companies from the region (shown in the gallery that accompanies this story) and seven venture-backed companies (shown in a separate story and gallery) that have yet to make their Wall Street debuts.
The ranking is based on what LinkedIn, the Sunnyvale-based wing of Microsoft Corp., detects on its professional networking…
