The Arup UK pension scheme has appointed rpmi to provide it with administration services following a tender process.
Arup has recently announced a consultation process with its UK staff on the future of its defined benefit pension scheme.
rpmi said the contract would cover the current DB scheme and was unrelated to the consultation process or its outcome.
The administration of the scheme - which has about 5500 members - will fully migrate to rpmi by January 1.
rpmi head of business development Graham Barras said: "Our people are absolutely key to the services we provide and we invest in them to ensure they are professional, motivated and friendly.
"Combining this with fully automated solutions and an emphasis on building partnerships with clients means we have a lot to offer."
Defined benefit (DB) schemes that provide GMPs must revisit and, where necessary, top-up historic cash equivalent transfer values (CETVs) that have been calculated on an unequal basis, a landmark court judgment said last week.
Technology platform PensionSync has partnered with quantum employment pioneer My Digital to help contractors and employers manage pensions as more workers do temporary work for multiple firms.
Capita Pensions has partnered with data technology solutions firm Intellica to tackle the GMP equalisation challenges facing pension schemes.
The Hewlett Packard Retirement Benefit Plan has reappointed EQ Paymaster as its third-party administrator (TPA) for five years.
Schemes and their administrators have rightly received much praise for ensuring that pensions have continued to be paid in full and on time during an unprecedented period of disruption.