Qatar Holding, the $60B investment arm of the Qatari government's sovereign wealth fund, has engaged RLM Finsbury for global PR support.

qatarQH is the constant subject of investment rumors and reports around the globe from the soccer club Arsenal last month to web video giant Hulu last week. Its prominent holdings include Harrods Group, Miramax and the Paris Saint-Germain Football Club.

London-based RLM is a unit of WPP.

QH this week sold its 10 percent stake in Porsche back to the families controlling the luxury car maker. The SWF took the Porsche stake during the finance crisis in 2009 to shore up the company. It previously worked with Citigate Dewe Rogerson for financial PR.

The value of the Porsche deal was not disclosed and QH remains invested in Volkswagen, a sister company to Porsche under the Integrated Automotive Group.

In November, QH partnered with Credit Suisse to form an asset management venture Aventicum Capital Management.

Oil-rich Qatar will host the 2022 World Cup.