PS Independent Trustees (PSIT) and HR Trustees (HRTL) have rebranded following their merger in January.
The combined business will now be known as Punter Southall Governance Services (PSGS).
PSGS managing director Wayne Phelan explained: "Our new name reflects two things. First is the true depth of services our business offers - trusteeship and outsourced services (such as scheme secretarial and pensions management) are of equal importance to us and this wasn't reflected appropriately in either of the PSIT or HRTL names.
"Secondly, we are now able to align ourselves much more closely with the Punter Southall Group and our sister business within PSG. This followed the sale of the Punter Southall actuarial, administration and investment consulting businesses to Xafinity at the start of the year."
The HR Trustees name will continue to be used by the specialist Pension Protection Fund team within PSGS in their work with the PPF.