ONE CAREER Surpasses 7,000 Cumulative Client Companies Less Than Six Months After Reaching 6,000

ONE CAREER Inc., which operates a career data platform business, announced that as of the end of April 2026, the cumulative number of companies it has conducted transactions with since its founding exceeded 7,000. Note 1: The cumulative number of corporate customers that have had paid transactions with the company as of the end of April 2026. Since Q1 2022, the figure has been calculated based on the number of companies served in order to more clearly reflect actual transaction activity. Surpassing 7,000 companies less than six months after reaching 6,000 Since its founding in August 2015, ONE CAREER has operated a career data platform business that provides students, job seekers, and companies with data related to career and job selection. Through its job-hunting support and new graduate recruitment service ONE CAREER, as well as its career-change support and mid-career recruitment service ONE CAREER Tenshoku, the company has worked to make opaque career data more transparent and reduce mismatches in career choices. As a result of these efforts, the company’s cumulative number of client companies has grown rapidly, recording a significant year-on-year increase of 46.9% in Q1 of fiscal year 2026. Momentum has continued to accelerate, and by the end of April 2026 the company reached 7,000 client companies in less than six months, or about five months, after surpassing 6,000 at the end of November 2025. The growth was driven by stronger regional expansion through the enlargement of local offices in Nagoya, Osaka, and Fukuoka; a focus on specific industries and job categories; and platform activation through the development and release of generative AI-powered features, including ES no Tatsujin for supporting application essay creation, Shutore for AI interview preparation, and the recently launched job-hunting-focused chat AI ONE CAREER AI. The company has also strengthened collaboration with government bodies, enabling recruitment support with greater social impact. ONE CAREER will continue to advance its career data platform business and work toward realizing its mission: “Creating as many careers as there are people.” Comment Tomoya Narita, Head of Consulting Sales Department at ONE CAREER Inc., said: We are pleased to announce that the cumulative number of companies using our services has surpassed 7,000. We sincerely appreciate being able to accompany many customers in their recruitment activities every day and support their success. Since our founding, we have grown mainly as a recruitment partner for large companies, built on strong support from students in major metropolitan areas. Recently, our services have expanded across companies of all sizes and regions, allowing us to deliver new value to an additional 1,000 companies in just five months. The figure of 7,000 companies is one milestone toward realizing our mission, “Creating as many careers as there are people.” By leveraging one of Japan’s largest bodies of career data, we will continue to evolve our services sincerely, aiming to solve the recruitment challenges of each company and every issue surrounding people and careers. Company Overview ONE CAREER Inc. operates three services under its mission, “Creating as many careers as there are people,” as a platform that enables individuals and companies to use a wide range of data related to job selection: the job-hunting support service ONE CAREER for students, the new graduate recruitment service ONE CAREER for companies, and the career-change support and mid-career recruitment service ONE CAREER Tenshoku. Company name: ONE CAREER Inc. Head office: 16F Shibuya Infoss Tower, 20-1 Sakuragaokacho, Shibuya-ku, Tokyo Established: August 18, 2015 Representative: Naoyuki Miyashita, President, Executive Officer and CEO Business: Career data platform business, including recruitment DX support services Securities code: 4377, Tokyo Stock Exchange Growth Market