SEI Investments (Europe) Limited (SIEL), a subsidiary of SEI (NASDAQ:SEIC), has announced plans to acquire XPS Pensions (Nexus) Limited, the principal employer and scheme funder of the National Pensions Trust (NPT), from XPS Pensions Group PLC. The deal, worth up to £42.5 million, is part of SEI's strategy to accelerate growth and enhance its market presence in the UK's defined contribution market. The acquisition is expected to close by the end of the year, subject to regulatory approval.