Germany's Katjes Group has become the majority shareholder in local organic muesli maker Mymuesli.

The Dusseldorf-based group has upped its stake in Mymuesli from 10.1% to around 56% through its venture-capital leg Katjesgreenfood.

Mymuesli's founders, Philippe Kraiss and Hubertus Bessau, still retain around 44% of the shares in the group, according to a LinkedIn post from the business.

According to Mymuesli's statement, Katjesgreenfood has bought its new shares from the Hamburg-based investor Genui.

To help finance the acquisition, Katjesgreenfood said in a statement it plans to raise further capital through "various options, including the use of financing instruments on the capital markets".

The company's investment in the organic muesli processor will go towards bolstering its presence in the "future food concepts" market.

Katjesgreenfood first secured its 10.1% minority stake in Mymuesli in 2023 for an undisclosed amount.

The investment marks the company's second majority stake in a business. In 2022, Katjesgreenfood snapped up UK gluten-free bakery Genius Foods. At the time, the group said it was its largest acquisition so far.

In its LinkedIn statement, Mymuesli said: "Katjes Greenfood already came on board in 2023. We have come to appreciate their versatile know-how in the future food market. Together, we are enthusiastic about the same basic values of creating a balanced diet in a self-determined way and want to have a positive impact on life on our planet.

"With this in mind, we want to continue to drive mymuesli forward in the future and look to the future full of optimism – with many growth opportunities online and offline and new product groups."

Mymuesli produces a range of customisable organic mueslis for customers in Germany, Switzerland, Belgium, France and the Netherlands.

It also produces a range of plain and flavoured porridges and snacks, including nut butter balls and granola bars.