Sumitomo Mitsui Trust Group Overview
- Investor Type
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Holding Company
- Status
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Active
- Professionals
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1
- Investments
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19
- Portfolio
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6
- Exits
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7
Sumitomo Mitsui Trust Group General Information
Company Description
Sumitomo Mitsui Trust Group is the fifth-largest Japanese bank by assets and revenue, with a market share of domestic loans of 3.1% as of March 2024. It is the only remaining stand-alone trust bank after the late 1990s deregulation removed legal barriers between commercial banking and trust functions in Japan; its former rivals in trust banking merged and became units of Mitsubishi UFJ FG and Mizuho. It has no capital ties with Sumitomo Mitsui FG, despite the similar name and common ties to Sumitomo and Mitsui group companies. In fiduciary services, SMTG is the market leader in Japan in total assets under custody. It is the largest manager of corporate pension funds and trails only Nomura in investment trusts.
Business Details
Investor Status
Primary Investor Type
Corporate Office
- 1-4-1 Marunouchi
- Chiyoda-ku
- Tokyo
- Japan
Sumitomo Mitsui Trust Group Investments & Acquisitions (19)
Sumitomo Mitsui Trust Group’s most recent investment was a with NOTA (Hotels and Resorts) for . The deal was made on 16-Feb-2026.
| Company Name | Deal Date | Deal Type | Deal Size | Industry | Company Stage | Lead Partner |
|---|---|---|---|---|---|---|
| NOTA (Hotels and Resorts) | 16-Feb-2026 | Hotels and Resorts | Profitable | |||
| Mitsubishi UFJ Financial Group | 07-Aug-2025 | International Banks | Profitable | |||
| Illumina | 31-Dec-2024 | Biotechnology | Profitable | |||
| 10x Genomics | 30-Sep-2024 | Biotechnology | Generating Revenue | |||
| Adaptive Biotechnologies | 30-Sep-2024 | PIPE | Biotechnology | Generating Revenue |
Sumitomo Mitsui Trust Group Exits (7)
Sumitomo Mitsui Trust Group has made a total of 7 exits. Its latest exit was from RONGO (Internet Retail) on 16-Jun-2026. The exit was categorized as .
| Company Name | Exit Date | Exit Type | Exit Size |
|---|---|---|---|
| RONGO (Internet Retail) | 16-Jun-2026 | ||
| Renalys | 01-Nov-2025 | ||
| Bank of East Asia (consumer finance businesses in China and Hong Kong) | 30-Nov-2017 | ||
| NewSmith | 24-Apr-2015 | ||
| Skylark Holdings | 21-Oct-2011 | Buyout/LBO |
Sumitomo Mitsui Trust Group Investments by Industry, Year, and Region
Sumitomo Mitsui Trust Group Affiliates
Subsidiaries (12)
| Name | Industry | Location | Year Founded |
|---|---|---|---|
| Mitsisumitomotorasutoraifupa-Tona-Zu | Tokyo, Japan | 2019 | |
| J-Eurus IR | Tokyo, Japan | 2000 | |
| Sumitomo Mitsui Trust Research Institute | Tokyo, Japan | 1988 | |
| Sumitomo Mitsui Trust Asset Management | Tokyo, Japan | 1986 | |
| Sumitomo Mitsui Trust International | London, United Kingdom | 1986 |
Sumitomo Mitsui Trust Group FAQs
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What is Sumitomo Mitsui Trust Group?
Sumitomo Mitsui Trust Group is the fifth-largest Japanese bank by assets and revenue, with a market share of domestic loans of 3.
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When was Sumitomo Mitsui Trust Group founded?
Sumitomo Mitsui Trust Group was founded in 1962.
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Where is Sumitomo Mitsui Trust Group headquartered?
Sumitomo Mitsui Trust Group is headquartered in Tokyo, Japan.
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How many investments has Sumitomo Mitsui Trust Group made?
Sumitomo Mitsui Trust Group has made 19 investments.
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What has Sumitomo Mitsui Trust Group invested in?
Sumitomo Mitsui Trust Group has made numerous investments in companies like NOTA (Hotels and Resorts), Mitsubishi UFJ Financial Group, and Illumina within the Hotels and Resorts, International Banks, and Biotechnology industries.
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What has Sumitomo Mitsui Trust Group invested in recently?
Sumitomo Mitsui Trust Group's latest investment was on 16-Feb-2026 in NOTA (Hotels and Resorts), a company within the Hotels and Resorts industry.
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