Following a keenly fought pitch, H&K will serve as the agency of record for both companies, while Frank will work on a number of projects throughout the year. It is thought that the collective PR spend on the briefs will be in the region of £500,000.
H&K's retained brief will see it concentrate on reputation management and consumer engagement for Norwich Union. It will provide press office function as well as supporting the insurer's rebranding campaign to the Aviva name this year.
At the same time, the agency will help with RAC's ambitious plans to expand its customer base.
The Norwich Union and RAC accounts were won via a competitive pitch process and were previously held by Lexis.
Louise Zucchi, head of media relations at Norwich Union Insurance, said: 'As we moved to rebrand to Aviva, we saw an opportunity to look at how we deliver our consumer PR and felt the time was right for a new approach.'