WHI Holdings has won approval for a Tokyo Stock Exchange listing, targeting a valuation of about 400 billion yen that could rank among Japan’s biggest IPOs next year.

Tokyo-based WHI Holdings, a developer of human resources software and related systems, is moving closer to a stock market debut that could shape Japan’s IPO landscape next year.

The company—backed by private equity investors including Bain Capital and Singapore’s sovereign wealth fund GIC—has received approval to list shares on the Tokyo Stock Exchange in December. The planned flotation is scheduled for Dec. 15, according to the company’s listing timeline.

If completed as expected, the offering is projected to value WHI at around 400 billion yen, or roughly $2.5 billion. That scale would position the deal as a leading candidate to become Japan’s largest initial public offering in 2026, reflecting both the size of the business and investor appetite for established enterprise software providers.

WHI is led by chief executive Tomitaro Anzai, who will steer the company through the transition from private ownership to public markets. The listing comes at a time when Japan’s equity market is closely watched for signs of deeper capital-market momentum, particularly in technology-enabled services that support corporate efficiency and workforce management.

Human resources systems—typically used to manage payroll, employee data, performance management, and broader workforce operations—have drawn increasing attention as companies seek to modernize back-office functions and improve compliance and reporting. WHI’s focus on HR infrastructure places it in the middle of this trend, where steady demand from corporate customers can translate into predictable recurring revenue—an attribute public-market investors often prize.

While final pricing and the size of shares to be sold will determine the ultimate fundraising totals, the headline valuation underscores the significance of the deal. A successful listing would also represent a notable milestone for Bain and GIC, both of which have been active investors in Japan and across Asia, and would offer a high-profile public-market exit route for private equity capital.

Why it matters

A large, closely watched IPO can influence the broader pipeline by setting valuation benchmarks for other would-be issuers. WHI’s listing will be a key test of investor demand for enterprise software and private equity-backed companies in Tokyo. Market participants will be watching the final offer terms and early trading performance for signals about the strength of Japan’s 2026 IPO cycle.