[cmbuck]

Eagle is far from an industry standard. In fact I don't remember hearing about a single company who uses it. Perhaps some small companies preferred Eagle. In industry it is far more common to see hardware companies use Altium, OrCad, Cadence, or even Mentor Graphics. I've also heard of one company who uses KiCad.

One of the big drivers for which EDA tool suite hardware companies choose is integration/compatibility with their Product Lifecycle Management (PLM) tools. My understanding is the bigger tools have better solutions for this than Eagle.

[_fizz_buzz_]

I worked for a company about 10 years ago that used eagle. As far as I know they haven't switched away from it. But it was a very small shop (<20 people) and I would definitely say it is rather the exception than the norm. Before KiCad took of the last few years, it was pretty popular with hobbyists though.