This question needs a little clarification as Buddhism is present to a greater or lesser extent in most countries in the world.
Buddhism does have organizations mostly in the way of monasteries. They don't have missionaries as such but monks do got to places where there is an interest in Buddhism.
spread Buddhism
Siddhartha Gautama made up Buddhism, and then had missionaries bring it to different country's.
Buddhism
missionaries
Missionaries had to travel to distant lands to spread Buddhist teachings.
no
Buddhism
The spread of Buddhism begins when Emperor Ashoka sent missionaries to India during the third century BC. This mission became a success and later on becoming the center of Buddhism.
Buddhism
Spain sent missionaries to Florida to bring their religion to the Florida natives.
They wanted to bring Christianity to the Native Americans.