Welcome to J-wire Co., Ltd., a Japanese ad management company that specializes in helping Amazon sellers succeed in the Japanese market. As a verified partner on the Amazon Partner Network, we have the expertise and experience to create customized advertising campaigns that will help you stand out from the competition and achieve your business goals.


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Our team of experts is dedicated to providing top-quality service to our clients. We work closely with each of our clients to develop customized advertising strategies that are tailored to their unique needs and goals. From keyword research to campaign optimization to data analysis, we have the skills and knowledge to ensure that your advertising campaigns are delivering the best results possible

Our manager account sales

Our ad management strategies have already helped our Japanese clients earn an impressive ¥2.55 billion (approx equivalent USD19 million) in sales with an average ACOS of 13.55% in the year 2022. We understand the challenges of advertising on Amazon Japan, and we are committed to helping our clients succeed in this highly competitive market.

At J-wire Co., Ltd., we believe in providing our clients with personalized service and support. We take the time to get to know each of our clients and their unique needs, and we work closely with them to develop customized advertising strategies that are tailored to their goals and budget. Whether you are just starting out on Amazon Japan or you are an experienced seller looking to take your advertising to the next level, we are here to help. Contact us today to learn more about how we can help you achieve your business goals with our expert ad management services.