Strengthening its foothold in the energy transition sector, Japan’s Mizuho Financial Group has announced the acquisition of London-based Augusta & Co, an independent financial advisory firm specializing in renewable energy and energy transition.

The deal will see Mizuho acquire 100% of Augusta’s advisory business, preserving the brand and its current leadership, and is expected to close by October 2025, subject to regulatory approvals. Augusta & Co’s asset management business is not part of the transaction.

While the value of the transaction has not been disclosed, the move positions Mizuho to significantly expand its M&A and advisory capabilities in the high-growth renewables sector across the EMEA region.

“We are proud to have built Augusta over the last 23 years from small beginnings into a leading independent European financial adviser in renewables and energy transition, with a reputation for rigorous client focus, and closing complex, structured deals,” says Mortimer Menzel and James Knight, managing partners of Augusta & Co. “As transactions in the renewables sector become more sophisticated and global, they also require more specialist, bespoke advice supported by a wider product base, which will be core to our business model.”

For the Japanese bank, the acquisition marks a continuation of its global sustainability strategy. It follows the 2023 acquisition of US M&A advisory firm Greenhill, and complements the bank’s broader pivot towards low-carbon financing solutions.

“Augusta brings 23 years of sector-specific expertise and deep relationships with leading renewable investors,” says Yutaka Nanjo, head of global investment banking at Mizuho Securities. “Combining their knowledge with our capital markets access and global reach creates a unique platform for energy transition advisory.”

For Asian institutional investors, this tie-up could offer additional pathways into the maturing European renewables market.