GAIAMOND Inc.
Corporate brand
UnclaimedJapanese company designing and selling trading-card collection goods under the GINZO brand, alongside research and human-resource development services.
Last updated September 28, 2026
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Overview
GAIAMOND Inc. (株式会社GAIAMOND) is a Japanese company headquartered in Sotokanda, Chiyoda-ku, Tokyo, established on 1 July 2020. It was founded as a developer of collection goods for trading cards, and its best-known commercial activity is the design and sale of acrylic craft products for trading-card collectors under the brand GINZO (銀蔵). GINZO is positioned as a supply brand specialized in trading-card games (TCG), intended to let collectors display their valuable cards safely and elegantly, with a strong emphasis on the appearance and quality of the products. The flagship GINZO product is TRILITH (トライリス), around which the company has continued to add product lines. Since 2020 GINZO products have been sold through the company's own online shop, the GINZO Official Online Shop, as well as through card shops. The company states that TRILITH has recorded sales of more than 20,000 units, and that the GINZO X (formerly Twitter) account has over 60,000 followers. Beyond its craft-goods business, GAIAMOND operates two other lines of activity. Under the name Progress Navi (プログレスナビ), it sells a correspondence-style qualification program focused on job-hunting and career-change needs, teaching recruitment criteria and HR evaluation methods while helping participants level up as high-performance talent; the company also researches and systematizes knowledge and skills required for various occupations in cooperation with experts, and develops correspondence qualification programs. The Progress Navi name has been filed as a trademark. In addition, GAIAMOND conducts corporate research and market analysis, business-model analysis and future forecasting, and provides consulting and publishing/editing services, using its research results internally to create new businesses and collaborating with universities, research institutions, specialized companies and experts. The company is led by Representative Director and President Muneshi Matsumoto (松本 宗志). It relocated to its current Sotokanda address on 13 March 2023. Its corporate philosophy is to excavate and polish the potential rough stones of this Earth (Hoshi) and create new scenery and a happy future; the company name is a portmanteau of GAIA (Earth, from ancient Greek, also a goddess in Greek mythology) and DIAMOND, reflecting the idea of discovering potential and polishing it into services and products. GAIAMOND is a private company and is not listed on a stock exchange.
History
GAIAMOND Inc. was established on 1 July 2020 in Sotokanda, Chiyoda-ku, Tokyo, founded as a company developing collection goods for trading cards. Its corporate name is a coined word combining GAIA (Earth, from ancient Greek, also a goddess in Greek mythology) and DIAMOND, expressing the mission of discovering the potential rough stones of the world and polishing them into services and products that create new scenery and a happy future. The company's best-known commercial brand, GINZO (銀蔵), is an acrylic craft brand specialized in trading-card-game (TCG) collection supplies. GINZO is designed to let collectors display their valuable cards safely and elegantly, with thorough attention to the appearance and quality of the products. Its main product is TRILITH (トライリス), around which the company has continued to add product lines. Since 2020, GINZO products have been sold through the company's own online shop, the GINZO Official Online Shop, as well as through card shops. According to the company, TRILITH has recorded sales of more than 20,000 units, and the GINZO X (formerly Twitter) account has more than 60,000 followers. Alongside its craft-goods business, GAIAMOND developed a human-resource development line. Under the name Progress Navi (プログレスナビ), it sells a correspondence-style qualification program specialized for job-hunting and career-change needs, allowing participants to learn recruitment criteria and HR evaluation methods while leveling up as high-performance talent; the company describes it as the industry's only such correspondence qualification program. GAIAMOND also researches and systematizes the knowledge and skills required for various occupations in cooperation with experts, and develops correspondence qualification programs, including creating texts related to occupational qualifications. The Progress Navi name has been filed as a trademark. A third line of activity is corporate research and market analysis. Through research work across various industries, GAIAMOND performs business-model analysis and future forecasting, and provides consulting and publishing/editing services. It also uses its research results internally to create new businesses, and collaborates with universities and other research institutions as well as specialized companies and experts in each field. The company is led by Representative Director and President Muneshi Matsumoto (松本 宗志). On 13 March 2023 it relocated to its current address at 5-1-10 Sotokanda, Chiyoda-ku, Tokyo (Senju Building 1F), near Akihabara and Suehirocho stations. Its advisors include the Mikami Tax Accountant and Certified Public Accountant Office as tax accountant and CPA, and attorney Yasutaka Otsuka of the Mizutsu Masaoomi Law Office as legal advisor. GAIAMOND is a private company and is not listed on a stock exchange.
GAIAMOND Inc. established in Sotokanda, Chiyoda-ku, Tokyo.
GINZO products begin selling through the GINZO Official Online Shop and card shops.
Company relocates to its current address at 5-1-10 Sotokanda, Chiyoda-ku, Tokyo.
Products and positioning
A Japanese company combining trading-card collection-goods design (GINZO) with research, publishing and human-resource development services; GINZO is positioned as a TCG-specialized supply brand focused on elegant, high-quality card display.
GINZO (銀蔵)
Acrylic craft brand specialized in trading-card-game collection supplies.
TRILITH (トライリス)
Flagship GINZO product; reported sales of more than 20,000 units.
Progress Navi (プログレスナビ)
Correspondence qualification program for job-hunting and career-change needs; name trademark-filed.
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