Pensions aren't a thing in the U.S. anymore, especially not for tech. And when a U.S. company says "staffing costs" that does not include licenses, offices, etc. It's strictly salary and benefits.

According to Signal's 990, it's paying multiple employees over $700k. That's above-market for corporate compensation, and it's way above market for non-profit compensation, to the point where it could be considered private inurement.