CSI provides comprehensive accounting, bookkeeping, consulting, taxes, and payroll services to small and medium-sized businesses. Serving clients nationwide, our expertise extends to local regulations due to our long-standing presence in Columbia (Baltimore/DC). We are proud members of professional organizations like PASBA, which has honored us twice, naming us the 2013 Large Firm of the Year and presenting our owner, Brian Paulson, with the Lifetime Achievement Award in 2018.