W.B. Jones is the owner of W.B. Jones Heating & Air, one of the five businesses operating in Scranton Business Park. In the episode Chair Model, W.B. Jones Heating & Air goes under renovations and their construction vehicles take up parking spaces that would otherwise be occupied by Dunder Mifflin Scranton employees. As a result of this, the leaders of the "Five Families" of the business park is called to discuss the parking problem. The problem is resolved quickly with a plea from Kevin Malone and Andy Bernard. In a deleted scene, he requests a fountain of George Washington crossing the Delaware river.
- In Chair Model, he is called Bill by the other business park bosses. Revealing the W in his name to stand for William.