That’s one way to look at it. An important consideration to be aware of is that some jurisdictions heavily regulate who can call themselves an engineer, especially a civil engineer, while other jurisdictions have comparatively laxer rules. In the stricter jurisdictions, people use approximate terms for engineering-adjacent work. Maybe consulting is one of them? OSM may not be rigidly bound by these laws, but I think it’s reminiscent of the considerations around who we’d be willing to classify as a doctor.
Most of the ones I’ve mapped would call themselves construction contractors or general contractors, which is broader and would include building construction. However, “civil engineering company” would be understandable for what was asked earlier.