VDC Research Group, Inc. is Constellation Research's #1 rival. VDC Research Group, Inc. is a Private company that was founded in Natick, Massachusetts in 1971. Like Constellation Research, VDC Research Group, Inc. also works within the Management Consulting Services field. VDC Research Group, Inc. has 24 more employees vs. Constellation Research.
Celent is perceived as one of Constellation Research's biggest rivals. Celent was founded in 1999, and is headquartered in Boston, Massachusetts. Like Constellation Research, Celent also operates in the Professional Services sector. Celent generates $13M more revenue vs. Constellation Research.
ABI Research is a top competitor of Constellation Research. ABI Research is a Private company that was founded in 1990 in New York, New York. Like Constellation Research, ABI Research also operates in the Business Information Research space. Compared to Constellation Research, ABI Research has 169 more employees.