[District5524]

That's an important observation. It's not easy to get filing data outside the US Federal courts (PACER), because it's not typical at all that courts publish the filings themselves or information on those who file the pleadings. But you can find statistics of the legal market (mainly law firms), like class size (0-10, 10-50, ... 250+ lawyers per firm) of total number of law firms, number of employees per class size of total law firm employees, or revenue per class size. Large firms only dominate the UK, especially in terms of revenue, US is less so, EU is absolutely ruled by solo and small firms. I did some research back in 2019 on this, updates, the figures probably did not change, see page 59-60: https://ai4lawyers.eu/wp-content/uploads/2022/03/Overview-of.... The revenue size statistics was not included in the final publication. You can fish similar data from the SBS dataset of Eurostat https://ec.europa.eu/eurostat/web/main/data/database (But the statistical details are pretty difficult to compare with the US or Canada, using different methodologies, different terminologies.)