
We provide services to global users by leveraging the “Convenience” of the “Internet”
Simplification is our Passion
Making work and lifestyle easier and more convenient for people around the world.
Through the Internet
Delivering Diverse Service Online
Globalization Services
Offering Cross-Border Services Worldwide
Providing Japanese proxy services worldwide
The world is becoming increasingly interconnected through advancements in technology,the widespread use of the internet, and the impact of globalization.
Despite this progress, challenges such as cultural differences, language barriers, and varying consumer behaviors persist.
Our mission is to overcome these obstacles and deliver more accessible and convenient services to individuals worldwide.
SIG Service Inc.

2025 / 07
Official partnership with Amazon Japan G.K.
05
Official partnership with SNKRDUNK (SODA Inc.)
05
Official partnership with Yahoo! Flea Market and Yahoo! Auctions (LY Corporation)
2024 / 12
Officia partnership with Suruga-ya Inc. (formerly A-too Inc.)
09
Official partnership with Lashinbang CO.,Ltd.
04
Official partnership with BOOKOFF
03
Partnered with minne (GMO Internet Group)
01
Warehouse moved to Misato, Saitama
2023 / 07
Official partnership with Rehello by BOOKOFF
03
Official partnership with BIC CAMERA’s Sofmap
Official partnership with Clove
02
Official partnership with Mercari Inc.
2022 / 12
Official partnership with Hareruya
09
Official partnership with Rakuma (Rakuten Group)
02
Official partnership with Magi (Jiraffei Inc.)
2021 / 02
Office relocation to Kanda, Tokyo
2020 / 08
Headquarters relocation to Kita-Akabane, Tokyo
03
Partnership with DHL Japan and ZTO Express
2015 / 08
Launched “Doorzo” proxy service
2013 / 12
SIG Service Inc. established
ABOUT OUR SERVICES
サービス


Our platform assists international customers in effortlessly purchasing Japanese products.
We serve as a seamless bridge—“Doorzo”—between global shoppers and Japanese retail platforms. Doorzo addresses challenges such as language, payment methods, logistics, and after-sales service, ensuring a smooth shopping experience for all.
With Doorzo, international buyers can access and purchase Japanese goods without any language barriers. At the same time, Japanese retailers can expand their reach and sell products to global customers with ease.
- · Assist Japanese retailers in expanding their business internationally and selling their products abroad.
- · Facilitate a seamless purchasing experience for users.
WAREHOUSING AND LOGISTICS
倉庫および物流サービス
AI-Powered Global Logistics, Smart Warehousing, Real-Time Tracking for Seamless Delivery Worldwide.
01

Completely free
No setup fees, no commission
fees—completely free
02

Strong in logistics
Adopting our unique international shipping methods, we offer the most competitive shipping rates, unquestionably the best.
03

Multilingual website
Our company-operated site and app are displayed in multiple languages, allowing us to serve customers from around the world.
04

No payment risk
No risk of credit card fraud
05

Comprehensive and attentive support
Our dedicated customer support team ensures a high level of customer satisfaction.
06

International payment support
Offering payment options
such as Alipay, WeChat Pay,
and PayPal to customers.
How to sell Internationally
海外進出のプロセス
- 1

Provide details and stock information for the products you wish to list.
- 2

List the products for international users, allowing them to purchase your items on our site.
- 3

We will purchase your products on behalf of the international customers.
- 4

The store will ship the products to our Japanese warehouse using the usual shipping methods.
- 5

We will ship the products to the international customers.

Which companies are eligible?
Our services are available to a wide range of users, from large corporations and small to medium-sized enterprises to individual entrepreneurs.

Which countries are covered?
The coverage includes mainland China, Taiwan, Hong Kong, Thailand, Europe, the Americas, and up to 50 other countries and regions.

What is the budget for the promotion?
We offer two plans: a free plan and a paid plan. The cost varies depending on the promotional media used.

How many products are sold through Doorzo?
Information is available. Please contact the person in charge.

Could you tell me which categories are the most popular and best-selling?
Popular items include toys, games, Japanese clothing, and fashion products—things that are not commonly available for purchase in everyday life overseas.

There are no requirements regarding a minimum shop opening period.
If we receive a request to close the shop from the seller, we will review the situation and promptly proceed with the closure procedures.

What is the shipping address?
The shipping address is the Doorzo logistics center in Tokyo.

Are there any costs associated with opening a store?
There are no initial fees or sales commission charges.

Why are there no costs associated with opening a store?
We are able to offer free store setup because we receive a handling fee from overseas users for purchase services.

If you wish to open a shop or list products on our platform, please contact our representative.
We will guide you through the dedicated seller system, and our staff will support you from product registration to the start of sales.
Join us and grow together!
In recent years, the number of users utilizing SIG Service's
[Proxy Purchase + International Shipping] service has continuously increased, and the number of products purchased through proxy has also grown year by year!
In 2021, to further expand the business, the office relocated to Akihabara in Tokyo, and the team has gradually grown.
The company's founder and CEO started the platform with the idea of "sending Japanese products to friends and relatives abroad" while working in Japan. Although still a young company, it has gradually received a lot of positive feedback from users.
Now, as a global enterprise, the company is based in Akihabara, Tokyo, a place where it can engage with diverse cultures.
The company currently has one headquarters and one warehouse in Tokyo, and two branches in Chengdu, China, and Hong Kong.
Moving forward, the company will continue to offer various services as a bridge connecting Japan with the rest of the

Gender Ratio

Employee Age Distribution
The company has a total of around 200 employees, including 80 full-time staff, with a gender ratio of 4:6.
The team is diverse, featuring individuals of various nationalities, but nearly all employees are proficient in Japanese at a business level.
With an average age in the late 20s to early 30s, the workplace promotes an inclusive environment that encourages smooth and effective communication.
If you are interested in any of the positions listed below, please visit the page for more information and to apply.
Full-time Chinese-speaking Online Customer Service and Order Processing Staff
Akihabara, Tokyo
Full-time employee / Annual income of 3.2 million yen
With bonuses
Visa sponsorship provided
No experience required
Part-time Chinese-speaking Online Customer Service and Order Processing
Akihabara, Tokyo
Part-time / Hourly wage of 1,200 yen~
Full reimbursement for transportation costs
No experience required
Part-time Warehouse Light Work / Quality Inspection / Packing / Sorting
Misato, Saitama
Part-time / Hourly wage of 1,200 yen~
No experience required
No educational background required
No nationality requirement
Full-time Warehouse Staff
Misato, Saitama
Full-time employee / Annual income of 3.2 million yen
With bonuses
Visa sponsorship provided
No experience required
Digital Advertising & Market Expansion Operations Lead (Western Markets)
Akihabara, Tokyo
Full-time employee / Annual income of 3.2 million yen
With bonuses
Visa sponsorship provided
No experience required
Digital Advertising & Market Expansion Operations Lead (South East Asian Markets)
Akihabara, Tokyo
Full-time employee / Annual income of 3.2 million yen
With bonuses
Visa sponsorship provided
No experience required
Corporate Sales
Akihabara, Tokyo
Full-time employee / Annual income of 3.2 million yen
With bonuses
Visa sponsorship provided
No experience required
Project Manager / Cross-border E-commerce / Korea Market
Akihabara, Tokyo
Full-time employee / 260,000~(bonus system available)
Bonus available
Visa sponsorship available
Malaysia
United States