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  3. STJグループ(株式会社サンテレコムジャパン、株式会社STJレンテック)
Trading company/Wholesale
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STJグループ(株式会社サンテレコムジャパン、株式会社STJレンテック)

EstablishmentSeptember 21, 1989
capital12000Ten thousand
number of employees70
addressTokyo/Minato-ku/2-2-6 Kaigan, DS Kaigan Building 7F, 8F
phone0120-984-875
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last updated:Aug 06, 2025
STJグループ(株式会社サンテレコムジャパン、株式会社STJレンテック)logo
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STJグループ(株式会社サンテレコムジャパン、株式会社STJレンテック) Company Profile

Leave the rental and sales of radios, transceivers, and intercoms, as well as information and communication devices like corporate mobile phones and smartphones, to the STJ Group!

The STJ Group (Suntelcom Japan Co., Ltd. and STJ Rentec Co., Ltd.) specializes in the sales, rental, and maintenance of wireless equipment and related solution products. (e.g., business-use wireless devices, IP wireless devices, license-free specific low-power transceivers, solutions products such as cameras and relay devices) ~List of Locations~ ■ Hokkaido Sales Office / Experience Center Sapporo ■ Tohoku Sales Office ■ Kanto Sales Office (Head Office) / Experience Center Tokyo ■ Kansai Branch / Experience Center Osaka ■ Kyushu Sales Office Additionally, the group company Suntelcom Japan Co., Ltd. also engages in mobile corporate business. With a proven track record in major corporate BCP implementations, we provide BPO services where Suntelcom Japan serves as the customer contact point, offering support for bulk management of devices, as well as assistance for malfunctions and losses. We can also provide comprehensive support proposals, including consulting on corporate communication environments and suggestions for office products and business improvement tools.

Business Activities

1) Import and export of telecommunications equipment and peripheral devices 2) Design and customization of mobile communication systems 3) Sales of mobile terminals and systems for mobile communication service providers 4) Maintenance management services for mobile communication service providers 5) Application development for mobile communications 6) Licensing and standardization of telecommunications equipment 7) System integration for enterprises

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Products/Services (390)

Safe even in explosion-proof areas! iPhone explosion-proofing and basic knowledge during use. product image
Safe even in explosion-proof areas! iPhone explosion-proofing and basic knowledge during use.
iPad for businesses (A16) product image
iPad for businesses (A16)
What is "interference" in radio equipment (transceivers, intercoms)? product image
What is "interference" in radio equipment (transceivers, intercoms)?
[IP Radio/SRNX1 Rental Case] Event and Exhibition Management product image
[IP Radio/SRNX1 Rental Case] Event and Exhibition Management

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catalog(253)

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Computer rental service

Computer rental service

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Announcement of the release of "eYACHO for Business 7"

Announcement of the release of "eYACHO for Business 7"

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Can the iPhone you are currently using also be made explosion-proof!? A detailed explanation of explosion-proof cases and Android.

Can the iPhone you are currently using also be made explosion-proof!? A detailed explanation of explosion-proof cases and Android.

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VR Firefighting Training Simulator

VR Firefighting Training Simulator

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news(19)

STJG_50th-2-01.png

[Announcement of New Service] We have started a computer rental service!

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We are pleased to hear of your continued prosperity. Thank you very much for your exceptional patronage. We would like to introduce our computer rental service! - Ready to use immediately after powering on upon delivery - Significantly reduced initial costs for implementation - Easy management of contract and asset information with our unique management system For more details, please download the PDF or feel free to contact us.

Oct 03, 2025

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UBZ-LU27_FRONT.png

[New Product Announcement] Environmentally friendly transceiver / No license required "UBZ-LU20/UBZ-LU27(BT)" has been released!

  • PRODUCT

We are pleased to announce that Kenwood's specific low-power transceiver "DEMITOSS UBZ-LU series" has been renewed! The new product uses ABS resin made from recycled materials for the main body and has reduced plastic materials in its packaging, making it an environmentally friendly model that takes SDGs into consideration. This contributes to a safe environment for future generations of our children. Of course, it continues to feature antibacterial and antiviral processing, as well as the air catalyst "Cellfeel R," ensuring protection from various germs. This transceiver can be used without a license. Why not enjoy communication for work or at private events like camping?

Jul 16, 2025

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STJG_50th-2-01.png

Notice of STJ Group's Year-End and New Year Holidays for 2024

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Thank you very much for your continued support. At the STJ Group (Santec Telecom Japan, STJ Rentech), we would like to inform you of our holiday schedule for the year-end and New Year period as follows. We apologize for any inconvenience this may cause and appreciate your understanding. ■ Year-End and New Year Holiday Schedule From Saturday, December 28, 2024, to Sunday, January 5, 2025. * Please unpack and check the contents of any items delivered within the year as soon as they arrive. * If there are any issues, we kindly ask you to contact us by Thursday, December 26. ■ Business Resumption Date Starting Monday, January 6, 2025. During this period, due to manufacturer holidays, we anticipate significant delays in sales and other responses. We apologize for the inconvenience and appreciate your understanding. Regarding inquiries, we will respond after Monday, January 6, 2025. Thank you for your understanding in advance.

Dec 11, 2024

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Detailed information

Company name STJグループ(株式会社サンテレコムジャパン、株式会社STJレンテック)
number of employees70
Contact addresspostalcode 105-0022 Tokyo/ Minato-ku/ 2-2-6 Kaigan, DS Kaigan Building 7F, 8FView on map TEL:0120-984-875 FAX:-
Key PartnersMotorola Solutions, Inc. Icom Inc. Yaesu Musen Co., Ltd. JVC Kenwood Corporation Alinco Inc. MC Access Support, Inc. Smartwave Telecommunications, Inc. Nihon Antenna Co., Ltd. KDDI Corporation NTT Docomo, Inc. SoftBank Mobile Corp. ITX Communications, Inc. J-Mobile, Inc. MetaMoJi Corporation L is B, Inc. Others
Business LocationsClick here for the list
Industry Trading company/Wholesale
STJグループ(株式会社サンテレコムジャパン、株式会社STJレンテック) Building Image
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