Swarm Development Group was created in 1999.
A swarm is usually the term for a large 'group' in one place. You cannot have a group of swarm as a swarm is a group
A Swarm A Swarm
MOTO Development Group was created in 1991.
Shelbourne Development Group was created in 1987.
A group of flies is called a swarm or cloud.
GeoDefense Swarm was created in 2009.
Swarm of the Snakehead was created in 2006.
Shades of the Swarm was created in 1997.
Cincinnati Swarm was created in 2002.
Minnesota Swarm was created in 2004.
Chennai Swarm was created in 2011.
Red Feather Development Group was created in 1994.