Ohh this’d plug nicely into my theoretical algorithm when looking at rev/profit per employee.
No point being capital efficient if your people are hating it. If they are loving it, however, that’d be a very strong sign of a quality company IMHO
LinkedIn has median tenure. If you have sales nav or recruiter you can search for company - current OR past (company name) to give total employees. You could also check out Triggr.ai which does have more in-depth data and may be able to do what you’re looking for