IBM was the dominant company of the mainframe era – and at the peak of their influence they had around 200K employees. The dominant company of the PC era is Microsoft, and they had around 40K employees at the peak of their influence and power. Google is the dominant company of the emerging internet era, at around 10K employees. It is easy to see a kind of Moore’s Law operating here: the dominant company in each technology generation is a fraction of the size of the dominant company of the previous generation.Â Timescales are shrinking too. IBM reigned supreme for decades, Microsoft for about a decade. Powered by technology itself, economies of scale are becoming available at smaller and smaller scales.