SEI INVESTMENTS CO
SEI Investments Company, formerly Simulated Environments Inc., is a financial services company headquartered in Oaks, Pennsylvania, United States. SEI provides products and services to institutions, private banks, investment advisors, investment managers, and private clients. Through its subsidiaries and partnerships in which the company has significant interests, SEI manages, advises or administers $1 trillion in hedge funds, private equity, mutual funds and pooled or separately managed assets. This includes $352 billion in assets under management and $683.3 billion in client assets under administration, as of 2019.
Basic company information
Each field links to its source. Financial figures retain their reporting periods; background references are identified in the source list.
Company positioning and business
SEI Investments Company, formerly Simulated Environments Inc., is a financial services company headquartered in Oaks, Pennsylvania, United States. SEI provides products and services to institutions, private banks, investment advisors, investment managers, and private clients. Through its subsidiaries and partnerships in which the company has significant interests, SEI manages, advises or administers $1 trillion in hedge funds, private equity, mutual funds and pooled or separately managed assets. This includes $352 billion in assets under management and $683.3 billion in client assets under administration, as of 2019. [3]
SEI has corporate headquarters in Oaks, Pennsylvania with offices in Indianapolis, Toronto, London, Dublin, The Netherlands, Hong Kong, South Africa, India, Luxembourg and Dubai. [3]
Background text: Wikipedia contributors, SEI Investments Company. Selected introductory paragraphs, licensed under CC BY-SA 4.0. Official filing data is cited separately.
Financial year, securities and disclosures
Listed securities: SEIC (Nasdaq). Multiple symbols may represent different share classes or securities of the same registrant. [2]
History and key events
Founding / inception date recorded in Wikidata. [1]
Financial results and regulatory disclosures
No individual financial documents have been indexed yet. Open the source to consult company disclosures. [2]
Related entities and concepts
Frequently asked questions
When was SEI INVESTMENTS CO founded?
Founded: 1968. The linked source provides the background record. [1]
Where is the headquarters of SEI INVESTMENTS CO?
Headquarters location: Oaks. The linked source provides the background record. [1]
Which business sectors are recorded for SEI INVESTMENTS CO?
Business sectors: financial services. The linked source provides the background record. [1]
Sources and review dates
- Wikidata — company background record (CC0) ↗
- Company identity and profile data ↗
- Wikipedia contributors — SEI Investments Company (CC BY-SA 4.0) ↗
Reviewed 23 October 2026. Financial periods and historical event dates are shown separately. Figures reflect their stated source dates; this page is not a live quote or investment recommendation.