Blue Collar is a three-location Brooklyn burger joint with no outside capital in its history — founded by local bar owners in 2012 and owned today by chef Eduardo Sandoval, who took it over as a working operator, not an investor. The original founders have moved on, so the "founder-run" label no longer applies, but the thing the label stands for — a neighborhood business owned by the person behind the counter — still does. No labor dispute has surfaced, and at three locations there's little formal environmental or sourcing record to weigh either way.