Is there a better word for these grow slow companies?

Businesses

If you slow grow and keep it smallish, then it’s a “lifestyle business”. That number can change but maybe $5million or less ARR. Thats enough to pay yourself and a few staff with benefits.

But like palata said above, it is a startup if hasn’t found product-market fit.

Solid? Right up to the point some funded start-up starts giving away the same thing in the hope that they can fake it until they make it and take everybody else in the same space down with them.

Linear is a really, really good product though, so it is worth paying for.

Small business?

SME, bootstrapped business.

"hypeless growth"

"Normal growth"?