Fleeting thought: is there any significant company that grew to a big (yet effective) size that's also a great example of NIH'ing their ERP? (edit: I mean, goo

Fleeting thought: is there any significant company that grew to a big (yet effective) size that's also a great example of NIH'ing their ERP? (edit: I mean, good homegrown ERP tooling, not excel sheets connected to a database)