Is it a small company ? They are the worst.
Certain types of companies are horrible, in my experience. Canadian retail is one. Education and non-profit is another. The best are medium sized firms on the larger side IMO.
I would think the bigger you get in the private sector, the more efficient you have to be to compete because the money & stakes are higher. There's lots of good small businesses, but also lots of bad ones, which is why so many fail.
I worked in non-profits too. They often work off donations or grants etc, which often are never as much as they need, so things are done shoestring, and it's not a business environment so things aren't well run & the often the management might be caring people but not business execs.
A lot of inefficiencies in the public sector, they have no competition, and things often only change if voters make it an election issue, and voters barely know anything that's going day to day, and what they know half the time they don't care much.