Infrastructure major Actis has completed the acquisition of a 90% stake in 800 Super, a Singapore-based environmental management company. The transaction, which was carried out alongside founder and CEO William Lee, brings Actis’ total deployment in Southeast Asia to about $1.7 billion, as the firm continues to expand across energy, digital infrastructure and real assets in the region.
The deal came after Singapore-listed Keppel’s fund and its infrastructure unit divested a combined 80% in the company in a deal that valued it at over S$600 million based on a 100% of its enterprise value. Lee divested 10% to Actis and is retaining 10% in the transaction.
The investment was made through Actis’ Long Life Infrastructure Fund 2, which is now about 70% deployed. Actis’ previous deals in Southeast Asia include MTerra Solar, Epoch Digital, bbp, and Levanta Renewables, as well as An Phat 1 Industrial Park in Vietnam, which was successfully exited in December 2023.
The acquisition was the fourth-largest buyout deal in the region, according to Deloitte data, which shows that the infrastructure sector accounted for six of the top 10 buyouts in Southeast Asia in 2025.
“We think the business has a terrific defensive profile, with a majority of revenues coming from long-term government contracts, while meaningfully contributing to Singapore’s sustainability ambitions,” said Adrian Mucalov, Head of Long Life Infrastructure at Actis.
800 Super provides waste management, treatment, public cleaning and recycling services to both public and private sector clients, with the majority of its revenue derived from multi-year government contracts in Singapore.
Founded more than two decades ago, the company is one of only three licensed municipal solid waste and integrated public cleaning service providers in the city-state, positioning it to benefit from Singapore’s push toward a circular economy under its Zero Waste Masterplan.
Private equity funds are piling into infrastructure deals in Southeast Asia after raising gigantic vehicles dedicated to the Asia Pacific region. The rise of the AI boom has driven investments in technology, media and telecommunications (TMT) in Southeast Asia, which collected $2.6 billion in buyout deals by 2025, according to a Deloitte report.
