SEI Investments
Technology, operations and investment solutions for financial firms
- Software & Internet
- Business categories with Pro
- Headquarters
- Oaks, Pennsylvania
- Industry
- Software & Internet
- Website
- seic.com
- Software & Internet
- seic.com
About SEI Investments
SEI describes itself as a provider of financial technology, operations and investment solutions that aims to simplify the complexities of financial services for its clients. Its work is grouped into technology and operations, which links platforms, data and essential services for enterprises, and asset management, which offers investment strategies for advisors, institutions and families. For asset managers it lists fund administration and back office services, investment operations outsourcing, an SEC-registered transfer agency, regulatory and compliance services and managed IT services. The company says it is headquartered in Oaks, Pennsylvania.
Business categories
Written from SEI Investments’s own website (www.seic.com/, www.seic.com/about-sei/about-sei, www.seic.com/about-sei/overview, www.seic.com/asset-managers/overview), checked 17 October 2026.
SEI Investments email format
SEI Investments email addresses most often follow flast@seic.com (first initial and last name), for example jsmith@seic.com. 96% of the 189 seic.com addresses we hold that match a known pattern use it.
Most common pattern
flast@seic.comFirst initial and last name
Example: jsmith@seic.com
96%
of matched addresses
Based on 189 matched addresses
Read from 273 seic.com addresses on file. The pattern is inferred from those addresses, and the example uses a placeholder name; real addresses are never shown here.
Similar companies
View allSEI Investments contacts
Contacts on file by seniority
- C-suite & founders14
- Vice presidents28
- Directors & heads29
- Managers61
- Staff & specialists121
20 more records have no job title on file.
Contacts by department
- Finance38
- Operations29
- Human resources26
- Leadership22
- Marketing16
- Engineering12
- Legal & compliance11
- IT & data7
Grouped from job titles.
People at SEI Investments
The role most often held at each level, from 273 records. Names, locations, emails, phone numbers and LinkedIn profiles unlock with Pro.
| Name | Job title | Location | Contact details |
|---|---|---|---|
| Name locked | Chief Financial OfficerFinance | Locked | |
| Name locked | Vice PresidentLeadership | Locked | |
| Name locked | DirectorOther | Locked | |
| Name locked | ManagerOther | Locked | |
| Name locked | Human Resources ExecutiveHuman resources | Locked |
+268 more people at SEI Investments, including 14 in the C-suite, 28 vice presidents and 29 directors.
Unlock with ProMost common job titles
- Vice President 10
- Manager 10
- Human Resources Executive 7
- Chief Financial Officer 6
- Controller 6
Where the contacts are based
States
- Pennsylvania273
Cities
- Oaks, PA273
Linked states open the Software & Internet leads page for that state.
SEI Investments in full, on Pro
- Stock listing and ownership
- Products and services, and the official LinkedIn page
- Every email format the company uses
- All job titles and every city on file
- Names, emails and phone numbers of the people
Research SEI Investments
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SEI Investments: questions answered
What is SEI Investments's email format?
SEI Investments email addresses most often follow flast@seic.com (first initial and last name), for example jsmith@seic.com. 96% of the 189 seic.com addresses we hold that match a known pattern use it.
How many employees does SEI Investments have?
We do not hold a reliable employee range for SEI Investments.
How many SEI Investments contacts does LeadQuasar have?
273 contacts across 192 different job titles, 14 of them at C-suite or founder level, 28 vice presidents and 29 directors. 273 carry an email address and 273 a phone number. Names and contact details unlock with Pro, free for the first 7 days.
Where are SEI Investments's contacts based?
Most of the SEI Investments contacts on file are in Pennsylvania (273), across 1 cities in all. The busiest city on file is Oaks.