Herbert Smith has won a competitive tender against 36 other firms to become the principal adviser to the National Lottery Commission.
Herbert Smith beat a shortlist of five other firms for the five- year appointment, including Bristol’s Burges Salmon, Denton Wilde Sapte, Eversheds, LG and Nabarro.
National Lottery Commission head of licensing Marcia Boys said: "The range of firms that submitted a tender, the range of options, was very interesting and it made us realise we were right to present a tender exercise.”
Boys said the reason that she picked Herbert Smith was the range of advice the firm could provide and their regulatory strength. Litigation partner Nusrat Zar Zar and litigation partner Andrew Lidbetter will be the client relationship heads.
The annual legal spend of the National Lottery regulator will be around £400,000 to £450,000 per annum.
LG had previously provided the majority of the National Lottery regulator's legal work, but will finish any ongoing matters it is working on then hand over the mandate.
Simmons & Simmons will continue advising on a discrete type of work relating to player trust arrangements, to which the firm has had historical links.
The tender, which began in February, follows the National Lottery Commission having awarded the third decade-long National Lottery licence to Camelot last year.