How many countries supported the American during the Revolutionary War?

The Revolutionary War involved many countries. The British had mercenaries from all sorts of countries along with Spain on their side. Later on, the British signed a treaty with the Germans and they joined in, too. The African Americans served on both sides, some patriots, some loyalists. The Native Americans were also greatly involved, but were on the British side. The French were greatly involved as they signed a treaty with the Americans during the war. Even though the British were greatly allied, the Americans only had the French, a portion of the African Americans, and a few tribes of Indians as allies.