Founded in 1968, SEI became a US public company in 1981 and is listed on the U.S. NASDAQ stock market under the ticker symbol SEIC. With our corporate headquarters based in suburban Philadelphia, Pennsylvania, and a significant presence in London and Dublin, our 3800+ employees serve asset managers, institutional investors and financial institutions around the globe.

SEI's Investment Manager Services division provides comprehensive operational outsourcing solutions to support investment managers globally across a range of registered and unregistered fund structures, diverse investment strategies, asset classes and jurisdictions. Alternative and traditional asset managers worldwide currently entrust over USD1 trillion in assets with us.


Philip Masterson

Employee title
Senior Vice President & Managing Director, SEI’s Investment Manager Services Division

Philip Masterson serves as the Senior Vice President in SEI’s Investment Manager Services division responsible for the division’s international strategy, business development, client service and delivery.
Philip formerly served as President of the Advisors' Inner Circle Funds, SEI's $30 billion turnkey mutual fund platform.  As President of the AIC funds, Philip led all aspects of the funds’ day-day operational, legal and compliance activities as well as product development matters for the trust.  Philip also designed, established and led a distribution team focused on growing the AIC funds through various intermediary channels.
Philip joined SEI from Citco Mutual Fund Services, where he served as General Counsel. Prior to Citco, he served as Vice President and Senior Counsel at OppenheimerFunds. Philip received his Juris Doctorate from Creighton University School of Law, cum laude.  He received his master’s degree in securities and financial regulation from Georgetown University with distinction. He frequently speaks at industry conferences and has published articles in the International Investor, Institutional Investor, Review of Securities and Commodities Regulation, Global Assets, Investment Lawyer and Morgan Lewis Hedge Fund Desktop Book, The Journal of Index Investing, Institutional Investor’s Guide to Exchange Traded Funds and Indexing Innovations.  

Jay Cipriano

Employee title
Head of Private Equity and Real Estate - Investment Manager Services

Jay Cipriano serves as the Head of Private Equity and Real Estate for US-based alternative investment managers within SEI’s Investment Manager Services division. He is a resource for prospective and current alternative clients who have questions regarding their business challenges and infrastructure needs.


Previously, Jay was the Vice President and Managing Director of Business Development responsible for the growth of the US alternative investment business. He was also a Managing Director of the Solutions group;  his team handled the positioning, packaging, pricing and launch of a number of successful products and services in the alternative and traditional back and middle office space. He was also the Managing Director of the Investor Services and Cash Administration Operations group, and Solution Manager within SEI’s Private Banking and Trust division. Prior to joining SEI over 16 years ago, he worked in the audit and consulting arms of Arthur Andersen LLP in Philadelphia, PA.


Jay holds a Master’s degree in the Management of Technology degree from The Wharton School and the University of Pennsylvania School of Engineering, and a B.A. in accounting from Franklin and Marshall College.


Contact number: (610) 676-1230


Donal O'Neill

Employee title
Head of Business Development and Client Services EMEA, SEI Global Fund Services Limited

Based in Dublin, Ireland, Donal O’Neill was appointed as Head of Business Development and Client Services for EMEA at SEI Global Fund Services Ltd in May 2013. Donal has been with SEI since 2003 and held various managerial roles at the firm including heading up third party clients accounting operations.


Before joining SEI, Donal worked for BISYS Fund Services (Ireland) Limited as a Fund Administration Director, and had previously worked in accounting and auditing. 


Donal is a Chartered Certified Accountant. He has worked in the funds industry for over twenty years and in an accounting environment for almost thirty years. 


Donal has represented SEI in the Irish Funds Industry Association participating in numerous committees including the Technical Committee, the Alternatives Committee and had most recently chaired the Marketing and Events Committee.


Contact number: 353-1-638-2495