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SunTelephone Co.,Ltd.

積極採用中
Software Headquarters, Asia, Japan 372 名 設立 1948 売上高 535 億円

会社について

【About SunTelephone】 ■ What kind of company is it, and where is it needed? Founded in 1948, SunTelephone is a specialized trading company for information and communication infrastructure. Beyond network and communication equipment, it also supports emerging fields such as renewable energy and IoT. Its products and services are used across a wide range of industries — from offices and hospitals to schools, data centers, and transportation systems — supporting both everyday life and industry. With strong capabilities in sales, procurement, and technical support, the company has earned lasting trust from clients in Japan and overseas. ■ What kind of company culture does it have? As a long-established leader with one of the top market shares in its field, SunTelephone continues to embrace new challenges guided by its core values of Creativity, Passion, and Sincerity. In recent years, it has expanded into ASEAN markets (Thailand and Vietnam) and advanced into IoT and energy-related businesses. The company values people and challenge, encouraging a culture where employees take initiative and learn through experience. ■ Where can you work? Headquarters: Tokyo, Japan Future opportunities may include work at overseas subsidiaries in Thailand or Vietnam. ■ Who can apply? Mainly students graduating in 2026 or 2027. The company actively welcomes international students, offering opportunities to apply language skills and global perspectives. ■ Mission SunTelephone’s mission is to “connect people and society through communication infrastructure to create a safe, secure, and prosperous future.” With its vision “Next Solution, Creative Mind,” the company aims to: ・Build a sustainable, resilient society ・Promote environmentally conscious management ・Develop solutions that address social issues SunTelephone strives to be a company where employees feel proud to work, diverse talent can thrive, and innovation continues to shape the future.

興味を持っていただいている学生のみなさんへ

■ Why does SunTelephone hire international students?
SunTelephone actively recruits international students to drive its global expansion, especially in ASEAN markets where understanding local cultures and business practices is essential. Beyond language skills, the company values their ability to bring:
・Local insights for market development
・Fresh, diverse perspectives
・Bridge-building skills between Japan and the world
・Energy and agility that spark innovation
Many international employees are already making a strong impact. Guided by its core values of “People” and “Challenge,” SunTelephone aims to grow together with diverse global talent — not just as hires, but as future leaders driving its international business forward.

数字で見る

設立(年)

1948

従業員数 (人)

372

売上高 (億円)

535

Key stats

社員の平均年齢

37

社員の男女比率

Male 64%:Female 36% as of March 31, 2025

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事業について

1

Telecommunications

The foundation of SunTelephone’s business lies in the telecommunications sector.
The company provides a comprehensive range of services—from proposing and estimating to procuring and delivering equipment—to build ICT (Information and Communication Technology) environments for various spaces such as offices, hospitals, schools, and public facilities.

Through its flexible “one-stop distribution” system that combines multiple suppliers, SunTelephone ensures both speed and high-quality service.
The company also offers video and wireless solutions tailored to on-site needs, including network-based surveillance camera systems, video analytics, and wireless infrastructure setup—contributing to greater safety and operational efficiency.
2

Business Design

While supporting Japan’s information and communication infrastructure, SunTelephone is also focusing on new fields that will shape the future of society.

In the renewable energy sector, the company provides one-stop solutions for solar power systems—offering products such as panels, cables, and mounting structures, along with installation and maintenance support.

In the IoT and smart manufacturing field, SunTelephone delivers total solutions that enhance visibility and efficiency on production sites—covering everything from sensor devices and network construction to control systems.

Through these initiatives, the company aims to create new value by integrating ICT and energy technologies.
3

Global Business

SunTelephone is also actively expanding its global operations.
In 2017, the company established a local subsidiary in Thailand, where it sells telecommunication equipment and solar power components. By maintaining strict quality and delivery control tailored to local needs, SunTelephone provides comprehensive procurement support for materials used in plants and factories.

The company has also strengthened its global network by incorporating Master Controls (Thailand), a firm with advanced expertise in security systems, and SOECO (Vietnam), which has an extensive distribution and support network. This enables SANTELHON to deliver integrated solutions to facilities such as hotels and hospitals.

Additionally, the company has built a procurement system capable of handling ODA and other projects in emerging countries, while promoting the export of construction materials across the ASEAN region.

制度・福利厚生

各種社会保険完備
通勤手当
退職金制度
産休育休制度
産休・育児休暇取得実績あり
企業年金
財形貯蓄
資格取得支援
<研修制度> ・OJT ・通信教育(語学や資格、マネジメント等120以上の講座から受講でき、期間内に修了すれば全額会社負担) ・ENカレッジ(業界を問わず各界で活躍する方を講師として迎える社内講演会) ・スキル研修(プレゼンテーション力の強化研修、コミュニケーションスキル強化研修、管理部門主催講座[税務安全保障貿易等]) ・階層別研修(新入社員研修、3年目研修、女性エンパワメント研修、階層研修[昇格者])