The marketing push, which will roll out across 43 markets, comes as the German brand looks to celebrate its 75th anniversary.
The work will highlight the company’s existing product lines as well as the launch of new products into international markets.
The win for HMDG follows work it carried out for Karcher around its pressure washer for the UK market.
Karcher claims the “Clean to the Beat” ad generated improved UK sales and good take-up on video sharing sites like YouTube.
Following the success of the ad, HMDG was invited to pitch for the global ad project with a number of undisclosed agencies.
The account will be run out of Karcher’s Winnenden headquarters, headed by Bernd Ruetzler, VP marketing, brand management, International.
The campaign will take in TV, print, online, POS and promotions.
Family-owned Karcher generated E1.38bn in sales across Europe last year.