This isn't meant to be a comprehensive list, but it does have some holes I'd point to primarily in (1) Consulting / services, (2) Enterprise, (3) Hardware / manufacturing. On the first you have time and materials, fixed fee, etc. On the second you have on-premise solutions, enterprise licenses, etc (Think Oracle, tons of security companies), and the third is, well, I'm not sure anyone needs examples: you make physical stuff that does something and you sell it.