SEI Investments Company

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SEI Investments Company
S&P 400 Component
IndustryFinancial services
Founded1968 Edit this on Wikidata
FounderAlfred P. West, Jr.
HeadquartersOaks, Pennsylvania, United States
Key people
Ryan Hicke (CEO)
Alfred P. West, Jr. (Executive Chairman)
AUM$378.2 billion (Q3 2022)
OwnerAlfred P. West, Jr. (14.2%)
Number of employees
4,700 (2022)

SEI Investments Company, formerly Simulated Environments Inc, is a financial services company headquartered in Oaks, Pennsylvania, United States. The company describes itself as "a global provider of investment processing, investment management, and investment operations solutions".[1] SEI provides products and services to institutions, private banks, investment advisors, investment managers, and private clients.[2] 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, and Dubai.[4]


SEI was founded as Simulated Environments Inc in 1968 by its current Executive Chairman and former CEO, Alfred P. West, Jr. (also known as Al West).[5] In the 1970s SEI developed an automated trust and investment accounting system for bank trust departments. In the 1990s SEI launched a wealth management operating platform for independent, fee-based investment advisors.[citation needed]

In 1994, SEI was an early investor of LSV Asset Management and currently still holds a significant stake in the firm.[6]

In 2012 SEI was sued by investors in connection with the financial crimes committed by Allen Stanford. Stanford had sold investors bogus Certificates of Deposit (CDs) and the investors alleged that SEI, as well as other companies, had promoted and misrepresented the CDs as safe investments without performing appropriate due diligence.[7][8] SEI responded that it merely provided a Stanford affiliate with back office services.[9] As of September 2015 the case was still ongoing.[8]


  1. ^ "SEI - SEI Reports Second-Quarter 2016 Financial Results - US". SEI.
  2. ^ "SEI - Home - US". SEI.
  3. ^ "SEI - SEI 2019 Annual Report - US" (PDF). SEI.{{cite web}}: CS1 maint: url-status (link)
  4. ^ "Office Locations". SEI.
  5. ^ "SEI Announces Appointment of Ryan Hicke as Next CEO | SEI".
  6. ^ "LSV locks down funds". Crain's Chicago Business. 2006-08-05. Retrieved 2023-02-04.
  7. ^ Terry Baynes and Jonathan Stempel (19 March 2012). "Class-actions by Allen Stanford investors revived". Reuters.
  8. ^ a b "Victims of Stanford Group still fight for their money - Baton Rouge Business Report". Baton Rouge Business Report. 30 September 2015.
  9. ^ Brent Kendall (26 February 2014). "Supreme Court: Stanford's Victims Can Sue Third Parties". WSJ.

External links