Best Japanese Web Design Agencies 2025

Japan has long been a global leader in innovation, seamlessly blending tradition with cutting-edge technology. As we enter 2025, Japanese web design agencies continue to set new standards, delivering world-class solutions across e-commerce, corporate branding, interactive experiences, and AI-driven design.

This article highlights the top Japanese web design agencies of 2025, showcasing companies that excel in design, SEO marketing and technical innovation. Whether you’re a startup looking to establish a strong online presence, a global brand expanding into Japan, or a company seeking advanced digital solutions, these agencies have you covered.

How do you determine the right web design agency?

Selecting the right web design agency is crucial for building a successful online presence. When making your decision, consider these three key factors:

① Budget

Determine how much your company is willing to invest and choose an agency that offers services aligned with your financial plan. Some agencies specialise in high-end custom solutions, while others provide budget-friendly packages tailored to startups and small businesses.

② Portfolio & Expertise

Review the agency’s portfolio, client testimonials, and case studies to gauge their expertise. Agencies that emphasise design-focused work may excel in UI/UX and animation, while those showcasing strategic roadmaps and branding projects likely have strong experience in marketing and digital growth.

③ Business Alignment

Ensure the agency understands your specific needs, whether it’s e-commerce functionality, SEO optimisation, branding, or custom development. A great agency will adapt its approach to align with your business goals and industry requirements.

A well-matched agency will not only reflect your brand identity, but also deliver a website that enhances user experience, drives engagement, and contributes to long-term business growth.

Join us as we explore the agencies shaping Japan’s digital landscape in 2025.

COOSY Inc. (株式会社クーシー)

Company	COOSY Inc. (株式会社クーシー)
URL	https://coosy.co.jp/ ENGLISH: https://coosy.com/
Established	November 9th, 1999
Location	Tokyo, Iwate, Myanmar, London
Employees	53 people

COOSY combines creative expertise and marketing strategy to deliver web solutions that go beyond traditional SEO and production. With offshore development and a UK branch, they offer multilingual, and scalable services for large-scale projects.

Founded in 1999, COOSY has managed major web projects across Japan for 25 years. Its London office supports businesses expanding into Japan, while the Tokyo headquarters serves as the operational hub. COOSY Lab in Iwate specialises in web engineering and app development, leveraging strategic local partnerships.

From consultation and marketing to production and development, COOSY provides end-to-end solutions tailored to your business needs.

Strengths

• 25 Years of Expertise

  Proven track record in web development and digital strategy.

• Bilingual Team

  Seamless communication across London and Myanmar.

• Fully In-House Production

  Streamlined processes for efficiency and quality control.

• Comprehensive Service

  From initial consultation to ongoing maintenance, ensuring long-term success.

Works

Promotional Website Renewal for Daiwa Asset Management Co., Ltd. / NASDAQ

Daiwa Asset Management Co., Ltd. is a leading investment management company in Japan, providing a wide range of financial products and services, including mutual funds and asset management solutions. As part of its commitment to innovation and investor engagement, and in alignment with its presence in the NASDAQ100, the company sought to develop its promotional website to enhance usability, strengthen brand identity, and better communicate its value proposition to global investors.

Project Portfolio: https://coosy.co.jp/work/detail/daiwa-am/

Corporate Website Renewal for Bank of Iwate

The Bank of Iwate is a Japanese regional bank based in Iwate prefecture in the Tohoku region, providing banking and financial services to individuals and businesses, with a strong focus on community support and economic development. To enhance user experience, modernise its digital presence, and effectively communicate its values, the bank underwent a corporate website redesign.

Project Portfolio: https://coosy.co.jp/work/detail/iwatebank/

baigie Inc. (株式会社ベイジ)

Company	baigie Inc. (株式会社ベイジ)
URL	https://baigie.me/
Established	January 2010
Location	Tokyo
Employees	48 people

Baigie Inc. is a web design company based in Setagaya, Tokyo, specialising in B2B marketing design and results-driven digital solutions.  They offer strategic planning services, including research, customer journey mapping, KPI setting, ROI analysis, and audience acquisition.

Their expertise extends from corporate and recruitment websites, and UX/UI design for enterprise systems and SaaS platforms, to consulting and mobile optimisations.

Beyond design, Baigie provides end-to-end support—from marketing strategy and content creation to performance analysis and continuous optimisation—ensuring seamless website development and management.

GIG Inc. (株式会社GIG)

Company	GIG Inc. (株式会社GIG)
URL	https://giginc.co.jp/
Established	April 2017
Location	Tokyo
Employees	100 people

Headquartered in Chuo, Tokyo, GIG is committed to its mission to “Enhance the World with Technology and Creativity.” The company offers comprehensive digital consulting, addressing business challenges through system development, marketing, and data analysis. It also operates a platform connecting digital professionals with projects, extending its impact across industries.

By aligning with each client’s vision and challenges, GIG delivers tailored solutions in system development, web marketing, consulting, business planning, and recruitment support. Understanding that businesses evolve, GIG helps strengthen brand identity by integrating article content and digital storytelling into corporate websites, keeping their online presence relevant and engaging.

LIG Inc. (株式会社LIG)

Company	LIG Inc. (株式会社LIG)
URL	https://liginc.co.jp/
Established	June 2007
Location	Tokyo, Nagano, Kyoto, Hiroshima, Ōita, Nagasaki, Philippines, Vietnam
Employees	230 people

LIG is a Tokyo-based web design company headquartered in Ueno. Since its founding in 2007, LIG has specialised in web development, branding, logo design, and marketing. 

Producing over 150 websites annually, LIG serves clients ranging from major corporations to small businesses, with projects spanning large-scale system development, government promotional initiatives, and more. With offshore development centres in Cebu and Vietnam, LIG also provides system and app development, as well as UI/UX design.

Building on this expertise, the company offers media growth consulting, delivering end-to-end solutions in web development, content strategy, system development, and media consulting—tailored to each client’s needs.

Dentsu Digital Inc. (株式会社電通デジタル)

Company	Dentsu Digital Inc. (株式会社電通デジタル)
URL	https://www.dentsudigital.co.jp/
Established	July 2016
Location	Tokyo, Osaka, Kyoto, Nagoya
Employees	2,500 people

Dentsu Digital aims to become a leading company in digital marketing by providing integrated solutions in consulting, development & implementation, and operations & execution support. In an industry that evolves rapidly, they believe in maintaining a strong core philosophy while adapting to change.

Guided by the slogan “Exciting Digital Experiences,” the company strives to create a society where both employees and clients—and ultimately, the end consumers—can fully embrace and benefit from digital innovation.

As a comprehensive digital firm, they support business growth by leveraging its expertise in digital marketing and data utilization. As part of the Dentsu Group, one of the world’s largest advertising agencies, the company offers a unique advantage in integrating advanced marketing strategies with cutting-edge digital solutions.

monokus Inc. (株式会社モノクス)

Company	monokus Inc. (株式会社モノクス)
URL	https://monokus.jp/
Established	January 2018
Location	Tokyo
Employees	7 people

Monokus specialises in custom web design and development, providing comprehensive solutions in web design, coding, graphic design, and SEO for corporate, brand, media, and landing pages. They also offer flexible post-launch support, ensuring cost-effective, seamless website management. Each project is crafted with high-quality system development and creative design, delivering a polished final product.

For businesses seeking a fully customised website, Monokus creates engaging, user-focused designs that go beyond templates. Built on WordPress for easy updates, their sites are also SEO-optimised for improved search rankings.

Conclusion

As Japan’s digital landscape continues to evolve, choosing the right web design agency is key to building a strong online presence. Whether you need custom development, branding, SEO optimisation, or ongoing support, the agencies featured in this list offer tailored solutions for your diverse business needs. By selecting an agency that aligns with your goals, industry, and budget, you can ensure a website that not only looks great but also delivers measurable results. 

Looking to enhance your digital presence from abroad? Explore our one-and-only high-quality bilingual web design services and take the next step toward a stronger, more impactful online strategy.