It begun work last month with HyperX, a provider of flash drives, keyboards, headsets and other peripherals for UK online gamers, on a year-long brief.
Lewis will lead creative consumer brand campaign to put HyperX on the map as a high-performance product for the gaming industry. The brand sponsors more than 30 e-sports teams and is the main sponsor of the Intel Extreme Masters series of gaming competitions.
HyperX, a division of Kingston Technology, has previously worked with non-UK offices of Lewis, but never on a retained basis. HyperX also works with the UK-based tech agency Zaboura.
Shane Herrington, brand marketing manager EMEA at HyperX, said: "It’s a very exciting time in e-sports and we are pushing the boundaries of high-performance and gaming experiences. Lewis will help us tell that story."
The other client is Drayton, for whom Lewis will promote a new tech-based domestic smart heating product, which launches next month, as an alternative to Nest and Hive, aiming to promote its products across a broad age range.
Lewis has previously worked with Drayton's parent company Schneider Electric on b2b briefs. Work began in the spring.
Around a fifth of Lewis' global business and a quarter of its EMEA work is in consumer PR. The firm took on Grayling's global head of brands Daniel Cohen in a senior EMEA brand role in June.