Cascade Investments and the Bill & Melinda Gates Foundation, two organisations controlled by Microsoft founder Bill Gates, have invested £16 million in security services provider G4S.

The two Gates controlled companies have now raised their combined stake in the company to a value of over £110 million.

The increased investment will come as a welcome relief to the company, after having successive blows to its reputation over the past years and the issuing of a profits warning in May.

The move to expand investment in the company may represent a move by the Gates controlled companies to take advantage of the recent change in leadership at G4S, and confidence in future growth after past turbulence.

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