Company

About ULTRO

ULTRO is a Tokyo-based company that helps Shopify brands grow. We build and maintain Shopify stores and run their advertising and CRM, mostly for brands in Japan. Out of that work we built GapFill, a Shopify app that sends the purchases GA4 missed from the server.

Company	ULTRO Inc. (株式会社ULTRO)
Founded	February 9, 2024
Corporate number	8011001160023 Issued by Japan’s National Tax Agency
CEO	Ryushi Nagata, Representative Director Profile →
Address	Miyamasuzaka Building 609, 2-19-15 Shibuya, Shibuya-ku, Tokyo 150-0002, Japan
Business	Shopify app development: GapFill: GA4 Server Tracking Shopify growth services for brands in Japan: store builds, maintenance, advertising and CRM (in Japanese) E-commerce: the MA walls, an art poster brand sold internationally
Partners	Shopify Partner Google Partner
Contact	GapFill support: [email protected] We reply within two business days (Japan time). Other inquiries: contact form The form is in Japanese, but you can write to us in English.