Kirkland & Ellis and several Magic Circle and German firms are advising on CVC Capital Partners’s purchase of energy-metering business Ista International from fellow private equity firm Charterhouse Capital Partners in a deal that values the portfolio company at nearly $4.1 billion.

Kirkland banking and finance partners Ward McKimm and Neel Sachdev in London are counseling CVC on debt financing aspects of the deal, along with associate James Crooks. As part of the deal, CVC, a longtime Kirkland client, will acquire the 76 percent stake it doesn’t already own in Essen-based Ista from Charterhouse.