Celebrating 31 Years of Client ServiceCelebrating 31 Years of Client Service in 2026
Call610-992-9287
CSSI Data Services
CSSI helps investment firms migrate, merge, restore, and reconcile portfolio data. We handle the work between the source file and a target system the team can trust.
Data services overview
Successful data work preserves the history and relationships behind each record.
CSSI analyzes, transforms, merges, and reconciles investment data across portfolio systems. We help firms preserve history, align securities and accounts, rebuild missing detail, and validate the result before the new workflow becomes operational.
The engagement can cover an entire migration or a focused problem such as cost basis, private equity transactions, classifications, or a difficult source feed.
Selected project work
Judge the move by its historical depth, account coverage, and reconciliation quality.
2,000 accounts
Four years of Tamarac transaction and performance history migrated into APX.
7,000 accounts
Twelve years of transactions, securities, prices, and tax lots restored from custodian files.
Private equity
Transactions created from source workbooks and reconciled against client statements.
Cost basis
Tax lots initialized, transactions reposted, and an ongoing maintenance process established.
Classifications
Securities mapped to GICS sectors and historical performance data restructured.
Where we enter
Adjacent service paths
Stay up to date with the latest insights and updates related to this topic.
Moving to a new portfolio management system or merging two firms? See how RIAs and wealth managers protect their value, and their clients, during the move.
In 1995, CSSI Solutions began as Client Server Specialists, Inc., focusing on...
Start with the data you have
Tell us what system the data is leaving, where it needs to go, and what has already gone wrong.
