Mitsui & Co. Digital Asset Management Partners with IBJ, a Matchmaking Company
Mitsui & Co. Digital Asset Management and IBJ, a matchmaking company, have formed a business alliance to offer digital securities as an asset building option, supporting life plans from matchmaking to post-marriage.
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- 📰 Published: April 1, 2026 at 18:00

Mitsui & Co. Digital Asset Management, Ltd. (hereinafter "the Company") and IBJ Co., Ltd. (hereinafter "IBJ") have concluded a business consignment agreement regarding financial instruments intermediary services (hereinafter "this partnership").
About this Partnership
Through this partnership, the Company will provide "ALTERNA" (hereinafter "Alterna"), a personal asset management service operated by the Company, to IBJ members.
Through Alterna, we will offer investment opportunities in digital securities backed by large-scale real estate and other assets that professional institutional investors focus on, to a wide range of individual customers, including those engaged in matchmaking and married couples. Through this partnership, both companies will support asset building at life milestones, fostering the creation of an economic foundation for the future and the realization of optimal life plans for each individual.
Background of this Partnership
Under the management philosophy of "bringing happiness to all those connected by fate," IBJ promotes a life design business that supports a rich life even after marriage, aiming to expand options for asset building.
Meanwhile, the Company advocates for "new options beyond deposits and stocks," promoting initiatives to expand investment opportunities in stable assets* such as real estate, which professional investors have traditionally targeted, to individual investors.
In particular, "marriage" is a major life milestone that provides an opportunity to consider asset building from a long-term perspective, and the high affinity between the two companies led to this partnership.
The digital securities offered by Alterna have relatively stable price movements compared to stocks, and offer the convenience of being fully online.
This "stability" and "convenience" are considered highly compatible with the lifestyles and needs of busy IBJ members who prioritize future preparedness. Hand in hand, both companies will support the creation of an ideal future for the current generation.
*"Stable assets" refers to investment target assets of financial products that Alterna plans to offer, such as real estate and infrastructure, from which stable investment results are expected in the medium to long term through their sustained operation. The financial products offered by Alterna do not guarantee principal or future investment results.
About IBJ Co., Ltd.
IBJ creates the most marriages (=engagements) in Japan* with total support that goes beyond just matching. Through its unique marriage counseling platform, it connects marriage counseling agencies nationwide with individuals seeking marriage, providing personalized support tailored to customers' lifestyles and matchmaking phases. The company aims to contribute to Japan's serious issue of population decline by creating couples who get married.
〈Company Profile〉
Head Office: Shinjuku First West 12F/17F, 1-23-7 Nishi-Shinjuku, Shinjuku-ku, Tokyo
Representative: Kenjiro Tsuchiya, President and Representative Director
Business Activities: Marriage counseling platform business, directly managed marriage counseling business, event business, matchmaking app business, life design business
Business Registration: Financial Instruments Intermediary Business, Kanto Local Finance Bureau (Kin-Chu) No. 1071
Corporate Website: https://www.ibjapan.jp/
*According to Japan Marketing Research Organization (Number of marriages: cumulative for 2024, Number of members: as of end of December 2024, February 2025 term_market research in specified areas) *Number of marriages: Number of marriages within the IBJ federation
About ALTERNA
Alterna is a personal asset management service that allows easy, yield-oriented investment in real assets such as large urban real estate, logistics facilities, and infrastructure like power plants, which are expected to generate stable rental income, via smartphone. By utilizing digital securities (ST: Security Token), it enables individual investors to make individual investments in various stable assets, previously limited to institutional investors, in small units starting from 100,000 yen. It provides new investment options to individual investors and promotes the "shift from savings to investment."
Official Website: https://alterna-z.com/
Official X: https://x.com/ALTERNA_mdm
Official Instagram: https://www.instagram.com/alterna_mdm/
Official Facebook: https://www.facebook.com/alterna.mdm
Official YouTube: https://www.youtube.com/@ALTERNA_mdm
Official LINE: https://tiny.alterna-z.com/line
Recruiting Alterna Alliance Partners
Alterna has been discussing with various industries, including operating companies supporting regional infrastructure, banks/IFAs, and real estate AM companies, to develop collaboration menus.
We offer various collaboration methods depending on business policies and licenses held, such as digital securities development and sales collaboration. Please inquire via the form below for more details.
Alterna Alliance Partner Recruitment Form: https://forms.office.com/r/LeCxKLXykZ
About Mitsui & Co. Digital Asset Management, Ltd.
Our company comprehensively handles the acquisition and operation of alternative assets such as real estate and infrastructure, as well as the consignment and sale of digital securities backed by them.
We utilize digital technologies, including AI, to solve various "negatives" in asset management, and through the provision of the personal asset management service "ALTERNA," we offer new options to those who wish to build stable assets for the future.
Head Office: Ningyocho PREX 4F, 1-9-8 Nihonbashi Horidomecho, Chuo-ku, Tokyo
Representative: Takashi Ueno, President and Representative Director
Established: April 1, 2020
Capital: 3 billion yen (including capital reserve)
Business Registration: Financial Instruments Business Operator, Kanto Local Finance Bureau (Kin-Sho) No. 3277
Real Estate Transaction Business: Tokyo Governor (2) No. 105400
Member Associations: Japan Securities Dealers Association
Japan Type II Financial Instruments Firms Association
The Investment Trusts Association, Japan
Corporate Website: https://corp.mitsui-x.com/
Inquiries regarding this matter: [email protected]
FAQ
What do IBJ members gain from this partnership?
IBJ members gain access to investment opportunities in digital securities through 'ALTERNA,' a personal asset management service operated by Mitsui & Co. Digital Asset Management.
What kind of service is ALTERNA?
ALTERNA is a personal asset management service that allows individuals to easily invest in digital securities backed by stable assets like large urban real estate and infrastructure, starting from 100,000 yen, via smartphone.
Why are matchmaking support and asset management partnering?
Marriage is a significant life milestone that presents a good opportunity to consider long-term asset building. The partnership aims to support life plans from matchmaking to post-marriage due to the high affinity between the two companies.