#Japan #Tokyo #New Executives #TUNAG #Stamen Corporation

Stamen Corporation Announces New Executive Team

Stamen Corporation, headquartered in Chiyoda, Tokyo, has officially announced the appointment of three new executive officers and one specialist officer, effective January 1, 2026. This strategic addition is set against the backdrop of the company’s vision to be a leader in supporting organizational and business growth.

Background of Executive Appointments

The new appointments aim to enhance Stamen’s adaptability and quick responsiveness to evolving business contexts while also emphasizing specialized expertise in business management. This restructuring serves to elevate decision-making speed and strengthen operational capacity across various areas, ensuring the company can continue to thrive in an ever-changing landscape.

The newly appointed executives are:

• - Hiroshi Iwata: Now serving as VP of Sales, previously Head of Corporate Sales Division.
• - Kazuki Niidoru: Now serving as VP of Growth, previously Head of Growth Strategy Division.
• - Ryoji Yamada: Now serving as VP of Customer Success, previously Head of Customer Success Division.

Additionally, Takahiro Sasaki has been appointed as a specialist officer, taking on the role of Union Solution Strategist, transitioning from his position as the Head of the UNION Customer Success Department.

About TUNAG

TUNAG, a flagship platform by Stamen, is designed to enhance workforce productivity and reduce employee turnover through improved internal communication and information sharing. As of December 2025, TUNAG boasts over 1,300 corporate users and 1.5 million active users.

Unlike traditional engagement strategies—often reliant on surveys and analytical assessments—TUNAG is a practical product that fosters engagement through features tied to daily operations such as internal SNS, employee recognition programs, and system operations. This approach leads organizations toward actionable solutions for their internal challenges.

Moreover, TUNAG’s user-friendly design and interface are tailored to connect with non-desk workers, achieving high utilization rates even in remote or multi-site company environments. This robust platform supports not just operational engagement, but also cultivates organizational culture through connectivity and gratitude, marking a significant advantage for TUNAG.

What TUNAG Offers

TUNAG provides various features to facilitate communication and recognition within organizations, such as:

• - Company announcements
• - Web-based internal newsletters
• - Messages from executives
• - Thank-you messages
• - One-on-one meeting facilitation
• - Daily reports
• - Internal point systems
• - Employee profiles and introductions
• - Internal awards
• - Training modules
• - Organizational diagnostics

For more information, you can request materials through this link or visit the official website.

Overview of Stamen Corporation

Founded in August 2016, Stamen Corporation operates under the mission to deliver inspiration and happiness to as many people as possible. The company has seen steady growth, culminating in its public listing in December 2020. It offers a range of services, including TUNAG and the cloud-based IT asset and operation log management tool, Watchy.

Company Overview:

• - Name: Stamen Corporation
• - CEO: Taihei Onishi
• - Headquarters: 5F Bancho Kojimachi Building, 6-6-2 Kojimachi, Chiyoda, Tokyo
• - Nagoya Office: 1-14-8 Shirahiro Shimomachi, Nakamura Ward, Nagoya City, Aichi Prefecture
• - Founded: August 2016
• - Employee Count: 169 (as of June 2025)
• - Ticker Symbol: 4019
• - Website: Stamen Corporation