SEI Investments Company SEIC

SEIC Company Overview

SEI Investments Company is a global provider of investment management, investment processing, and investment operations solutions, serving financial institutions, institutional investors, investment advisors, and private wealth managers. The company operates at the intersection of asset management and financial technology, offering both proprietary investment strategies and outsourced infrastructure that supports portfolio management, trading, compliance, and reporting. Its business model combines recurring asset-based fees with long-term, contract-driven technology and services revenue.

Founded in 1968, SEI initially focused on providing accounting and operational support for banks and trust departments before expanding into broader investment management and technology-enabled services. Over time, it evolved into a diversified financial services firm with a distinctive positioning as both an asset manager and a provider of integrated investment platforms. This dual capability has allowed SEI to differentiate itself by embedding its investment expertise within scalable operating systems used by clients globally.