SEI Chosen by AlphaOne Capital Partners to Provide Operations Outsourcing

Firm Seeks Scalable, Institutional Quality Infrastructure to Support Ongoing Acquisition Strategy

DUBAI, United Arab Emirates, March 8, 2010 - SEI (Nasdaq: SEIC) today announced that it has been selected by AlphaOne
Capital Partners to provide a complete outsourcing solution, including
middle- and back-office services, for the firm's portfolio of investment
products. AlphaOne, a specialty equity money management firm founded by
former Gartmore CEO, Paul J. Hondros, sought to outsource their back- and
middle-office functions as a means of achieving greater infrastructure
transparency, flexibility, and scalability without tying up critical internal
resources. Scalability is particularly important for AlphaOne, given the
firm's need to seamlessly integrate new businesses into its infrastructure as
it continues to grow through acquisition.

Under the agreement, SEI will provide AlphaOne with a full range of
services for AlphaOne's institutional and hedge fund accounts, including
trade processing, investment accounting, daily cash and position
reconciliations with custodians, daily and month-end performance measurement,
and end-client reporting and billing. SEI will also host and maintain the
firm's order management system. Additionally, SEI will provide back-office
services, including fund administration, accounting, and investor servicing
for two of AlphaOne's hedge funds. SEI's services also include full business
continuity and disaster recovery capabilities. AlphaOne will receive
comprehensive data management, performance, and risk reporting for all back-
and middle-office services provided by SEI via SEI's online Manager
Dashboard.

"As we went through the process, it was clear that no one could compare
with SEI's ability to integrate best-in-class systems into one seamless
infrastructure that can scale with the changing needs of our business," said
Paul J. Hondros, President and CEO of AlphaOne. "We are growing quickly,
having added top-quality investment teams and client assets to our
infrastructure during our first year of business. As we continue to grow, SEI
gives us the confidence that everything will be integrated seamlessly,
allowing us to focus on what we do best — managing our investment portfolios
and servicing our clients."

"We're seeing more and more firms looking to outsourcing, not only as a
means of gaining efficiencies, but as a way to build an operational
environment that can help attract additional opportunities," said John
Alshefski, Senior Vice President, SEI's Investment Manager Services division.
"At SEI, we've spent a tremendous amount of time and resources ensuring our
platform and our processes provide the integration and the scalability that
our clients need across business models and asset classes. AlphaOne is
clearly in a strong growth mode and we're excited to help them achieve their
business goals and serve their clients better now and in the future."

About SEI's Investment Manager Services Division

SEI's Investment Manager Services division provides comprehensive
operational outsourcing solutions to global investment managers focused on
mutual funds, hedge and private equity funds, exchange traded funds,
collective trusts, and separately managed, as well as institutional and
private client, accounts. The division applies operating services,
technologies, and business and regulatory knowledge to each client's business
objectives. Its resources enable clients to meet the demands of the
marketplace and sharpen business strategies by focusing on their core
competencies. The division has been recognised by Buy-Side Technology as
"Best Fund Administrator" and by HFMWeek as "Best Funds of Hedge Funds
Administrator." For more information, visit www.seic.com/ims.

About SEI

SEI (Nasdaq: SEIC) is a leading global provider of outsourced asset
management, investment processing and investment operations solutions. The
company's innovative solutions help corporations, financial institutions,
financial advisors, and affluent families create and manage wealth. As of
December 31, 2009, through its subsidiaries and partnerships in which the
company has a significant interest, SEI administers US$392 billion in mutual
fund and pooled assets and manages US$158 billion in assets. SEI serves
clients, conducts or is registered to conduct business and/or operations,
from numerous offices worldwide. For more information, visit
www.seic.com.

Services provided by SEI Investments - Global Fund Services Limited (Reg.
in Dublin No. 424309), SEI Investments Trustee & Custodial Services (Ireland)
Limited (Reg. in Dublin No. 315393), and their affiliates, which are all
wholly owned subsidiaries of SEI Investments Company.

SEI Investments - Global Fund Services Limited and SEI Investments
Trustee & Custodial Services (Ireland) Limited (Styne House, Upper Hatch
Street, Dublin 2, Ireland) are authorised by the Financial Regulator under
the Investment Intermediaries Act 1995.

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    John Alshefski
    https://profnet.prnewswire.com/Subscriber/ExpertProfile.aspx?ei=91693

Dana Grosser of SEI, +1-610-676-2459, dgrosser at seic.com; Sue Mathews, suem at penrose.co.uk or Katy Hall, katyh at penrose.co.uk, both of Penrose Financial for SEI, +44-(0)207-786-4888