No, the ones that employ more than one or two people and make decent amounts of money sell services related to GPLed software. (In a world where everyone had proper Internet connections, we wouldn't have companies selling GPL software on physical media at all.) This probably isn't profitable in many cases, especially when distributing directly to the consumer rather than building a product for other business.

There is another special case, but it's selling software in spite of the GPL; home routers, set top boxes, etc. Were they to use GPLv3 software, they'd have no way to protect against another company using their (potentially substantial) work on the software, building/copying the hardware design and creating cheap knock-offs within a few weeks of release, making it too costly to continue.

If a group of companies and individuals wanted to come together to build a new router platform where all would contribute back to it, but they could differentiate themselves on edge features, management interfaces, etc, the BSD license is good enough; and probably a better bet than the GPL.

Can you name a company (or a part of a company that is a profit center, or even an indie developer). That makes it's money primarily from selling GPL software?

Software that used to be sold commercially but was subsequently GPL'd , starving artist type programmers scraping by on donations (i.e earning significantly less than the median programmer salary for someone of their skills) or companies that produce GPL software but make money selling either support or software/hardware based around their GPL software (that itself is not GPL) don't count.