Shared Value has officially been engaged to handle international communications and financial PR, though it is understood that the brief centres on the company's planned flotation on the London Stock Exchange, which could take place in the next few months.
As the second-largest operator in a sector of Russian industry for which investors have shown particular enthusiasm in recent years, Novatek could become a member of the UK's FTSE 100 index.
Shared Value's victory over firms including Citigate Dewe Rogerson, M: Communications and Finsbury will be the third Russian listing the agency has won in as many months.
In February, Sistema appointed Shared Value. Earlier this month it picked up Rambler Media's account for its AIM listing.