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Top SEO Companies in Japan

SEO (Search Engine Optimization) is essentially the process of optimizing your website to get organic, or unpaid traffic from the search engine results page. When potential customers search for terms related to your business or brand in Japan (Tokyo, Osaka, etc.),  they will have a better chance of discovering your website and becoming a customer.

Succeeding at SEO takes effort and some expertise. You may need a local SEO company or SEO agency to improve your search engine ranking; there are hundreds of SEO agencies based in Japan that can help you with website optimization, backlinks, etc.

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Tips For Choosing The Right SEO Agency in Japan

Refer Agencies Past Performance:

Make sure that the company has hands-on experience in projects that are similar to your requirements and have authentic client reviews in their favor. This way you could learn more about the credibility of your potential vendor. People look at what your companies have done to determine if you can deliver. You should also do the same when choosing a SEO agency.

Find Out What Methods The Agency Plans To Use:

Make sure you find out which SEO techniques the agency would be using. Shortcuts used by the agency like paid links, keyword stuffing, and cloaking can lead search engines to demote your website. These techniques are called “Black Hat SEO” because they violate search engine rules. To get a better idea about the company’s capabilities, ask for case studies and references.

Effective Communication:

The vendor must be efficient enough to set up a few extra calls with you to have a better understanding of your work. They must have a good understanding of the Japanese market. Communication gaps could leave a bunch of loopholes in your work due to insufficient understanding and lack of emotional intelligence.


List of Top 25 SEO Companies in Japan


1. Submarine:

Submarine is a digital marketing agency founded in 2018 and based in Tokyo, Japan. They start by helping clients with digital marketing planning from the early stage of concept building. The firm supports web content planning, design, production, content writing optimized for SEO, and operational support for companies expanding into Japan.


Customers: IDO, Datascientist.

Specialties: SEO, Digital Strategy, Content Marketing.





TAMLO is a Japanese content marketing agency based in Tokyo and London. They help international companies localize for the Japanese market and vice versa. The firm provides content creation (copywriting, SEO), market research (social listening, customer surveys), strategy & planning (strategic workshops, design thinking) and content management services (reporting, social media management, digital ads). 


Customers: Dexerials, HyperJapan, Papercup.

Specialties: SEO, PPC, Content Marketing.




3. btrax:

btrax is an Innovation Design company based in San Francisco and Tokyo, specializing in UX and Service Design to create innovative products and services on a global scale. They  drive results through their dynamic team of experts with backgrounds in design, technology, and marketing.


Customers: Mazda, Nauto, Expedia.

Specialties: SEO, UX/UI Design, Branding.




4. Bruce Clay:

Bruce Clay, Inc. is an award-winning global digital marketing agency and a leading provider of ethical search engine optimization services, consulting, and training. The company offers a full range of digital marketing solutions for mid-tier and Fortune 500 companies, including SEO, SEM/pay per click, social marketing, content development, web architecture, and website analytics. 


Customers: Centuyry21, Pitney Bowes.

Specialties: SEO, PPC, Social Media Marketing.




5. ZoDigital:

ZoDigital is a full service Digital Agency based in Japan. They also partner with other local agencies to provide additional services as well. They specialize in all aspects of SEO including On Page SEO, SEO Audits, Content Marketing, Digital PR & Link Building Outreach. The firm has more than eight years of experience in the digital marketing industry.


Customers: Berlitz, Printful.

Specialties: SEO, PPC, Content Marketing.





KOCHI is a boutique digital marketing firm connecting companies around the world with the Japanese market. They connect businesses to help people in Japan, regardless of where the business is located. They have been supporting various industries that want to launch or grow their business in Japan.


Customers: ShareDine, Edenred, Corize.

Specialties: SEO, PPC, Social Media Marketing.




7. IMJ:

IMJ continues to create various measures that match consumer demand and corporate demand with strengths from its abundant knowledge, know-how and introduction experience in digital marketing. The firm has more than two decades of experience in the digital marketing industry.


Customers: Pfizer, CocaCola.

Specialties: SEO, Content Marketing.




8. Principle Co:

Principle Co enables brands and enterprises to advance their marketing data and leverage insights to improve marketing and operations ROI.​As a Google Marketing Platform Partner, they apply demonstrated expertise in advanced analytics to make measurable impacts to their clients’ marketing and revenue performance.


Customers: Samsung, Adidas, Lacoste.

Specialties: SEO, PPC, Digital Strategy.




9. Info Cubic:

Info Cubic Japan is a digital marketing agency established in 2002 serving more than 500 businesses in the Far East. Through their  “Asian partnership”, they will work with you to prepare a detailed proposal that meets all your needs for successful marketing in the region. The firm has more than two decades of experience in the digital marketing industry.


Customers: DNP, Citizen, Nestle.

Specialties: SEO, PPC, Digital Strategy.



10. Zizo:

Zizo is a Japanese digital and creative company offering the best solutions for all industries through the power of design and technology. Since their  start in 2010, their mission is to drive brands and products to success in Japan with creative planning, content marketing and IT expertise.


Customers: Undisclosed.

Specialties: SEO, Content Marketing.



11. Baquemono:

Baquemono is a digital marketing agency based in Musashino, Japan. The firm specializes in Search Engine Optimization (SEO), Content Marketing, and Web Designing services. Following a simple step-by-step process, they promote simplicity and ensure transparency throughout every single marketing project.


Customers: TPN, Crisp, SQVA.

Specialties: SEO, Content Marketing, Web Design.




12. Wasabi Communications:

Established in 2002, Wasabi Communications is a Tokyo-based digital marketing company specializing in SEO, PPC and Social Media Marketing. They  have been helping international companies ranging from SMEs to Fortune 500 companies successfully run their online marketing campaigns in Japan.


Customers: Sony, Panasonic, Symantec.

Specialties: SEO, Content Marketing.




13. Mahana Corporation:

Mahana Corporation is a Japanese website design company, located in the center of Shibuya, Tokyo. They offer various web-related services to not only local but also international companies and organizations around the world. The firm has more than fifteen years of experience in the digital marketing industry.


Customers: Undisclosed.

Specialties: SEO, PPC, Web Development.




14. Webguru:

Webguru is  a web design studio based in Tokyo providing a range of web services for the Japanese and English speaking community. Webguru specializes in creating multilingual websites for small businesses in Japan and can bring life to your products with ecommerce online store integration. We also provide advanced SEO (Search Engine Optimization) techniques to make sure your company ranks highly in search results. 


Customers: Zuicho, Kappo Rin.

Specialties: SEO, Content Marketing.




15. ShapeWin:

ShapeWin is a creative communication PR & Digital Marketing Agency designed to support startup companies entering the Japanese Market. Their priorities are making PR stories/strategies to extend their clients business revenue and brand reach across Japan.  The firm has more than ten years of experience in the digital marketing industry.


Customers: Temona, Animax, Mitsucari.

Specialties: SEO, Public Relations.




16. ShibuWeb:

ShibuWeb is a Tokyo web design agency, specializing in web development, website support and online marketing. They  have the best web solutions for their clients’ businesses! They help their clients to increase their sales and expand their customer base on the internet. They create online stores, corporate websites, prototypes, corporate identities, portals, and provide a variety of web services.


Customers: Undisclosed.

Specialties: SEO, Web Design, Graphic Design.





Epiport is a Performance Marketing Agency that helps international brands and expanding startups to grow sales revenue and ROI across Japan and the Asia-Pacific region through strategic market research, digital performance marketing and sales management services. The firm has more than ten years of experience in the digital marketing industry.


Customers: CocaCola, EcoLab, Toyota.

Specialties:  SEO, Digital Strategy, Affiliate Marketing.




18. Rain Interactive:

Rain Interactive, is a creative Tokyo-based, digital media company with services ranging from web design and development, custom system development, e-commerce, smartphone applications to graphic and print design, and SEO consultation. Comprised of the artistically inclined, Rain Interactive carries itself with an intense sense of pride in its work, and in doing so is very intent on producing high quality work and client satisfaction.


Customers: BMW, RayBan, EBARA.

Specialties: SEO, Web Development, E-Commerce Development.




19. AJ Marketing:

AJ Marketing is a marketing agency based in Singapore, having corporate offices in Malaysia, Thailand, Vietnam, Japan and Korea. AJ Marketing is helping brands to succeed in Asia. They provide full influencer and digital marketing solutions in Asia. 


Customers: GameLoft, Cider, Adobe.

Specialties: SEO, Social Media Marketing.




20. BThrust:

BThrust is a global information technology company that specializes in providing industry-focused solutions integrated with cutting-edge security to clients all across the globe. It provides dedicated digital marketing solutions ranging from SEO to content marketing and more. BThrust offerings include software development, SEO, digital marketing, enterprise infrastructure, mobile application development, system integration, business applications and IT security.


Customers: CHANGI, Skin Renew.

Specialties: SEO, Mobile App Development.




21. Humble Bunny:

Humble Bunny started business in October 2009 under the premise that helping others succeed is the cornerstone to finding success in oneself. Based in Tokyo, Japan, they provide a variety of digital marketing services to help your company reach that success. They help you successfully sell in the Japanese market via creativity, quantified cultural insight, and proven performance.


Customers: Cooori, Aigner.

Specialties: SEO, Web Design, Branding.




22. GMO Internet Group:

The GMO Internet group started the Internet business in 1995, when Japan was still at the dawn of the Internet. The firm provides Advertising, E-Commerce Development, and Search Engine Optimization services to its customers. They have many years of experience in the digital marketing industry.


Customers: Undisclosed.

Specialties: SEO, E-Commerce Development.




23. LawRank:

LawRank is a premier legal marketing agency that specializes in SEO, PPC, and web design. They have a proven track record of achieving first-page results for attorneys in the most competitive markets. Their ideal client has tried at least one other marketing company and understands the cost and effort involved with SEO. 


Customers: Lorenz & Lorenz, Mirman.

Specialties: SEO, PPC.




24. E-Bird:

E-bird produces a wide variety of websites—including sites that emphasize usability and accessibility. The firm has more than two decades of experience in the digital marketing industry. Following a simple step-by-step process, they promote simplicity and ensure transparency throughout every single marketing project.


Customers: Health Bridge, Luther Consulting.

Specialties: SEO, Web Design, Mobile App Development.




25. Tokyo Web Designs:

Tokyo Web Designs is a digital marketing agency based in Shinagawa City, Japan. Since 2008 we have been helping clients achieve their online goals in Japan. Whether you are an entrepreneur, consultant, small business or large company, Tokyo Web Designs can help. For those who have big plans for their businesses, we offer dedicated online marketing packages.


Customers: Sakura, Blue Line Exports.

Specialties:  SEO, Web Development, Content Marketing.





We have compiled the list of top Search Engine Optimization  companies in Japan based on user reviews, portfolio and track record. If you think we have missed out on a good SEO or SEM company, feel free to let us know.

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