In biology, "evolution" is *defined* as being the process involving changes of the heritable characteristics of a population over time.

Corporations pass all manner of things on to other companies - including resouces, employees, business methods, intellectual property, documents, premises, computer programs, etc. We are not talking about just a few bits of analog information here - often vast quantities of digital resources are involved.

Corporations form a population. Frequencies of instances of the above listed items in that population varies over time.

Therefore the population of corporations evolves - in the spirit of the classical biological sense of the term.