I co-own a small IT company with 7 people and the amount of paper we print out and receive has really diminished in the last 10 years.
We really do not print anything in terms of internal things as a lot of our work is at a customer location and involves several people over time so having things online and available to everyone at need has been a great help. Having it on paper would mean outdated versions and so on.
Of the about 60-70 invoices we send out monthly only one is on paper at their request.
In an average month we receive about 3-5 paper invoices, the rest are electronic.
Customer documentation and such are mostly electronic. We do have most of the contracts made on paper, though more and more of them are electronic.
Almost all of our communication with the government (taxes, import reports and such) are in electronic form. Only the municipality insists on sending the property tax on paper and the pension cover company sends the yearly report on paper. I do not think we receive anything else official routinely on paper, though there could be something I forget.
During this whole year so far I have printed out less than 30 pages(couple of contracts) and looked at less than that in total at papers from others in the company/directed at the company.
I must say that I definitely do not miss paper, all the folders full where you had to find something and the paper you were looking for was "always" miss-filed...