In Bummer Vacation, it is shown that the Krabby Patty ingredients are delivered to the Krusty Krab. However, in multiple episodes, it is implied that the ingredients are made by the Krusty Krab itself. This creates a contradiction because they can’t realistically be made on-site. For example, in The Hankering, SpongeBob says he doesn’t know how to cook chum, yet in Friend or Foe, it is revealed that Krabby Patties are made from chum. This suggests that the ingredients are not made at the Krusty Krab itself.
So, what if there’s another building owned by the Krusty Krab that produces the ingredients? SpongeBob likely makes the patties using the secret formula, but the actual ingredients are manufactured elsewhere. This theory aligns with Patty Caper, where it’s shown that the secret ingredient and the secret formula are separate things. This could mean SpongeBob knows the secret formula but not the ingredients used in it.
As for this company, I think it would be owned by Mr. Krabs but managed by someone else. The company would likely operate under a different name, like “The Krusty Farm” or something similar. Its role would be to produce the Krabby Patty ingredients and deliver them to the Krusty Krab. I imagine this facility would have around 20 employees because it would be very busy producing all the ingredients. The building itself would probably be a large factory to handle the scale of food production required.
That’s my theory! Let me know if there’s anything I missed or need to adjust.