A growing number of Japan’s mid-cap companies are considering buyouts and other strategic options, according to Mizuho Financial Group, which is seeking to increase lending and advisory services to the sector.

"There are quite a few companies that are experiencing stagnant growth and have price-to-book ratios below one,” said Masahiko Kato, chief executive officer at Mizuho Bank, in an interview.

"We want to help them make growth strategies and provide necessary services” if they choose to buy or sell businesses and assets as part of corporate overhaul, he said.