Production is downstream of the epistemic position.
If contact is the constraint, then the useful description of a firm stops being what it manufactures. It becomes which region of the physical world that firm can reach, repeatedly, on privileged terms, and learn from faster than anyone else can. Classify by output and the map reads steel, software, finance, construction. Classify by region of reality and a different map appears, and it is the second map that is becoming operative.
Production does not vanish under that description. It changes position. A firm reduces uncertainty inside its region, and production emerges as a consequence of that epistemic work rather than as the purpose that defines it. Knowledge generation moves inside the production function instead of falling out of it as a byproduct, which is the structural difference between this and advisory work.
Bayswater's region, stated exactly, is industrial human capability, observed where it is exercised rather than where it is documented. The classification argument is carried in full on the institution. What that position costs to hold, event by event, is carried on the once-only event.