Celebrating 31 Years of Client Service

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Investment operations specialist reviewing portfolio reconciliation exceptions

CSSI BackOffice

Keep the daily work moving without carrying it all in-house.

Since 2004, CSSI has supported financial advisory firms with reconciliation, trade support, reporting workflows, corporate actions, and daily operational cleanup. Use us for overflow, specialized work, or a long-term operating partnership.

  • Daily reconciliation and processing
  • Performance, composites, and GIPS support
  • Client reporting and invoicing operations
  • Partnership accounting support

Service overview

Experienced operators inside your daily workflow

Expert support for your investment operations.

With experience across Advent Axys and APX, Black Diamond, PortfolioCenter, Tamarac, Orion, and more, CSSI can provide temporary, specialized, or permanent support without forcing your team into a new operating model.

Our BackOffice team works remotely through encrypted connectivity, helping your business maintain continuity while keeping client data secure in your environment.

Operational coverage

Bring us the work that is creating pressure

Start with one recurring process, a specialist gap, or a broader operating partnership. The scope can expand or contract with the workload.

Daily operations

Daily Reconciliation & Processing

Daily data, activity, corporate actions, and account reconciliation support.

Performance

Performance & Composite Maintenance

Performance review, outlier research, composite maintenance, and GIPS support.

Client delivery

Client & Reporting Services

Account setup, data audits, reporting operations, and client invoicing.

Fund operations

Partnership Accounting

Ongoing fund accounting, statements of capital, K-1 preparation, and audit assistance.

Questions before you scope it?

See how transitions, pricing, security, and coverage work.

Common service paths

Start where the pressure is landing.

Your next operating move

Need help with reconciliation or back-office workload?

CSSI can help with operational support, cleanup work, and steadier reporting workflows.

Talk to BackOffice