Resalta ( is a leading regional energy efficiency services company. Currently, Resalta has operations in Slovenia, Croatia, Serbia, Bulgaria, Romania, and the Czech Republic. 

The Company is run by a team with significant experience throughout the region in implementing custom energy efficiency solutions for a diversified client base including hotels, industrials, hospitals, municipalities, shopping malls, and others.

Resalta’s unique proposition stems from its professional service and ability to invest in energy-efficiency assets on its own balance sheet. This provides clients with the ability to repay the initial capex investment over a 5-10 year period only with the savings from the reduced energy bills.

Resalta's projects enable the saving of more than 30,000 tons of CO2 per year. 


BlackPeak exited Resalta in 2024 with a sale of its stake to Aggreko, a world leading provider of energy solutions that has operated since 1962 and has more than 6,000 employees across 65 countries. The acquisition is subject to regulatory approval and is expected to be completed in the first half of 2024.