One quick way to measure the scale of a company is to look at the number and complexity of business processes that it runs. In a company that only has one customer, one office and three employees, an Excel spreadsheet can be enough to manage everything. But then, it becomes less manageable when the number of customers, turnover employees and branches increase.
In these cases, the internal processes grow in number and complexity because of legal obligations for different problems. Aside from this, a company is also required to manage processes imposed on it by external forces such as government agencies or larger companies with whom they need to integrate their certification processes and operations.