C3 is Spire's #1 competitor. C3 is a Private company that was founded in 1989 in Boston, Massachusetts. C3 is in the Real Estate Development & Operations industry. Compared to Spire, C3 has 37 more employees.
Dennis is seen as one of Spire's biggest rivals. Dennis was founded in Columbia, South Carolina} in 2005. Dennis is in the Residential Building Construction field. Compared to Spire, Dennis generates $19.7M more revenue.
Interface Consulting is one of Spire's top competitors. Interface Consulting is headquartered in Houston, Texas, and was founded in 1986. Interface Consulting competes in the Management Consulting Services industry. Interface Consulting generates 2,392% the revenue of Spire.