Investors in the London-based vehicle include Apple, Foxconn and the sovereign wealth funds of Saudi Arabia and UAE.
Summit exits the Italian company, which operates 112 dental clinics, after a hold of little over two years.
Headquartered in Belgium, LBC is an operator of bulk liquid storage facilities for petrochemicals, petroleum products and base oil products.
The menswear company is preparing to present a voluntary arrangement to creditors.
The deal is the eighth investment from the Carlyle Cardinal Ireland fund.
The Swedish business has been sold to listed industrial holding company Volati.
Following the transaction, Lakesight will have pro-forma sales of around €40m.
Permira held an intermediary close for the fund this month at around €600m that followed a first close at €900m in December 2016.
Govare will lead a committee of 15 industry experts who support the Activa Capital team in the study of investment opportunities and the monitoring of portfolio companies.
Formerly funded by VCT capital, Mobeus has already made two buyout investments from the new fund.