ＴＫＣカスタマーサポートサービス株式会社, which provides call center services, received HDI-Japan’s highest quality rating of three stars for 6 consecutive years. The category evaluated was Business Software (Request), based on a survey conducted in August 2026.
ＴＫＣカスタマーサポートサービス株式会社 (TCSS) is a wholly owned subsidiary of TKC that provides call center services from its base in Tochigi Prefecture. On 2 October 2026, it was announced that the company had received HDI-Japan’s highest rating of three stars in the quality-rating benchmark conducted by HDI-Japan. This was the sixth consecutive year it had received the rating.
The HDI rating benchmark evaluates companies against international standards on a four-level scale, from no stars to three stars. The three-star rating is based on the average scores for five criteria: service structure, communication, response skills, processes, and handling difficult cases. TCSS was recognized for maintaining a three-star rating for multiple consecutive years in the Business Software (Request) category.