SEI Investments Company
SEI Investments Company is a U.S.-based financial technology, operations, and asset management firm headquartered in Oaks, Pennsylvania. Through its subsidiaries, it serves banks, wealth managers, investment advisors, asset managers, and institutional investors with platforms for custody, processing, administration, and investment management.
Fiscal year 2025 · change from previous year
Development 2020–2025
Business
Share of revenuePlatform, processing, custody, and outsourced operations for financial institutions.
Investment management, advisory, and model portfolio fees tied to client assets.
Implementation, consulting, and other service revenues around the core platforms.
Products
Reported · share of revenue- Investment Operations Fees37.4 %
- Investment Management Fees From Investment Management Agreements20.3 %
- Investment Management Fees From Investment Products17.9 %
- Investment Processing Fees Paa S14.4 %
- Investment Processing Fees Saa S5.0 %
- Other5.0 %
Source: 10-K FY2025, revenue the company reports per product line (SEC XBRL). Shares are of the lines shown and add up to 100 %.
Customers
SEI sells primarily to financial institutions and professional wealth intermediaries that need scalable infrastructure, custody, and investment capabilities. Its clients include banks, RIAs, investment managers, family offices, institutional investors, and ultra-high-net-worth investors that outsource parts of their operating model or seek packaged investment solutions.
Asset managers and alternative managers buy fund administration, custody, and processing to scale complex products.
Private banks use SEI's custody, wealth platform, and operational infrastructure for client servicing.
RIAs and advisors buy model portfolios, wealth technology, and integrated custody/operations tools.
Institutions use SEI for administration, investment processing, and portfolio solutions.
Strategy
SEI's strategy centers on combining technology, custody, operations, and investment management into one infrastructure for financial intermediaries and institutions. It is also expanding into alternatives, custom model portfolios, and advisor-focused capabilities to deepen wallet share and broaden its platform relevance.
Alternatives administration and access are a differentiated growth area and deepen client relationships.
Advisors and RIAs need integrated custody, tax, and portfolio tools to consolidate workflows.
Automation and modern infrastructure support scale across processing, custody, and reporting.
Geography
SEI is headquartered in the United States and operates service centers across the U.S., the U.K., Ireland, Canada, continental Europe, India, and South Africa. Its business is global, with a meaningful share of activity tied to North American wealth and institutional clients and to European fund administration and custody operations.
Risks
SEI's business depends on uninterrupted systems, secure data handling, and reliable third-party connectivity across the financial ecosystem. It also faces execution risk from acquisitions, platform expansion, and model-based decision processes, while regulatory and operational complexity rises as it serves banks, advisors, and alternative managers across multiple jurisdictions.
- Operational resilience and business continuityImpact: HighLikelihood: Medium
SEI's services rely on continuous processing, custody, and data connectivity across many counterparties.
Exposure - Cybersecurity and data protectionImpact: HighLikelihood: Medium
Wealth and institutional platforms hold sensitive client and transaction data that are attractive targets.
Exposure - Acquisition and strategic investment integrationImpact: MediumLikelihood: Medium
SEI uses acquisitions and partnerships to expand capabilities, which can create integration and valuation risk.
Exposure - Regulatory and compliance complexityImpact: MediumLikelihood: Medium
The company operates regulated entities in the U.S., U.K., Ireland, Canada, Luxembourg, and Cayman.
Exposure
Accounting
Judgemental itemsManagement and administration fees depend on asset values and client flows, affecting revenue timing and volatility.
Impact: Revenue and margins
Platform enhancements are capitalized, which shifts expense recognition into future periods through amortization.
Impact: Operating expenses and cash flow
Acquisitions create goodwill and intangibles that require judgmental valuation and impairment testing.
Impact: Earnings and balance sheet
Fair value allocation to acquired assets and liabilities affects future amortization and reported results.
Impact: Amortization expense and equity
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Last updated: 24/09/2026