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System development that takes UI/UX into account is essential for improving usability. However, implementing effective UI/UX design requires specialized knowledge and expertise. Therefore, working with a development company experienced in UI/UX design can be a great support.
"I want to find a company that excels in UI/UX design."
"I want to know how to choose a UI/UX design company that meets our needs."
To address these concerns, this article explains the benefits of UI/UX design, introduces 12 recommended design companies, and outlines key points for choosing the right partner. If you’re considering implementing or outsourcing UI/UX design, please use this as a reference.
Akira Shimazoe
CEO of Solashi Japan LLC. Engaged in the development and operation of internal systems at Suntory. Founded Yper Inc., serving as CTO and CPO, contributing to product launch and growth.
What is UI/UX?
UI/UX design is a design approach for creating systems that are easy to use and provide high user satisfaction.
UI stands for User Interface, which refers to the parts of websites or apps that users directly interact with.
UX stands for User Experience, which refers to the overall experience users gain through a service.
While system functionality is important, considering UI/UX enables more intuitive and efficient operation. As a result, it leads to higher user satisfaction and continued use of the service.
What you can outsource to a UI/UX design company
The services available vary by company, but most offer the following:
| Available Services | Description |
| Prototype Development | Create prototypes to visualize ideas and test them early on. |
| Design Production | Design websites and apps focusing on both usability and appearance. |
| UX/UI Improvement | Analyze issues in existing services and propose/implement improvements. |
| User Testing | Conduct tests with real users to identify and resolve issues. |
| Design System Construction | Develop a system for efficiently managing consistent design. |
4 Companies That Excel in End-to-End UI/UX Design and Development
Here are four companies known for their strength in supporting everything from UI/UX design to system development. Below, we explain each company's features and appeal.
- Solashi Co., Ltd
- Cloudsmith Inc.
- Spice Factory Inc.
- Glocal Connect Inc.
1. Solashi Co., Ltd
Solashi Co., Ltd is an offshore development company based in Vietnam. They have a large team of engineers skilled in cutting-edge technologies, and offer a wide range of development services that incorporate UI/UX design, from B2B to B2C projects.
The company's strength lies in its excellent proposal capabilities and advanced technical skills. Staff members familiar with business operations conduct thorough interviews and propose systems that directly contribute to business growth. Furthermore, through prototyping and effectiveness testing, they deliver system development that produces tangible results.
In addition to UI/UX design, they offer comprehensive services ranging from consulting to development, maintenance, and operation. This makes them ideal for companies seeking end-to-end support tailored to their needs.
| Item | Details |
| Company Name | Solashi Co., Ltd |
| Established | 2019 / 2022 |
| Capital | Approx. 30 million yen |
| Head Office Address | 1F Ninomiya Building, billage SHIBUYA, 18-4 Sakuragaoka-cho, Shibuya-ku, Tokyo |
| Main Features | Capable of customized development with UI/UX design tailored to each client. Strength lies in efficiently securing skilled overseas talent with great cost performance. |
| Website | https://solashi.com/ |
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For such individuals, we recommend Solashi’s Vietnam offshore development
2. Cloudsmith Inc.
Cloudsmith Inc. is a system development company based in Sendai. They specialize in web system development and website creation with a focus on user experience. The company’s strength lies in its UI/UX design from the end-user’s perspective.
Specifically, they emphasize intuitive usability and efficient information delivery, offering designs that contribute to increased user satisfaction. They are a recommended development partner for companies aiming to build systems with smooth operability and optimal website design.
| Item | Details |
| Company Name | Cloudsmith Inc. |
| Founded | 2017 |
| Capital | - |
| Head Office | Yamaguchi Building 9F, 1-1-31 Ichibancho, Aoba-ku, Sendai City, Miyagi Prefecture |
| Main Features | Strength in “user-centered UI/UX design.” Designs are created from the end-user perspective to achieve results. |
| Website | https://cloudsmith.co.jp |
3. Spice Factory Inc.
Spice Factory Inc. is a system development company primarily engaged in web system contract development. Leveraging its extensive knowledge and experience in UI/UX design, the company offers proposals from both technical and marketing perspectives.
A distinctive feature of the company is the creation of interactive prototypes. By preparing prototypes, clients can interact with the system and make necessary adjustments as needed. This enables early identification of usability issues and improvements before full-scale development begins.
Notably, they also offer proposal services and initial prototypes free of charge. This allows clients to experience their services with minimal risk. Spice Factory is a valuable choice for companies considering UI/UX-focused web system development.
| Item | Details |
| Company Name | Spice Factory Inc. |
| Founded | 2016 |
| Capital | 50 million yen |
| Head Office | 20F South, Tradepia Odaiba, 2-3-1 Daiba, Minato-ku, Tokyo |
| Main Features | Extensive UI/UX expertise with the ability to create interactive prototypes. |
| Website | https://spice-factory.co.jp/ |
4. Glocal Connect Inc.
Glocal Connect Inc. is an IT company headquartered in Nagoya, Aichi Prefecture. Guided by the philosophy of “becoming the IT department that supports all customers' businesses,” they provide a wide range of services including system development, website creation, and IT consulting.
Their strength lies in UI/UX design for consumer-facing application development. They focus not only on visual appeal but also on intuitive usability and ease of use. For example, by analyzing user behavior patterns, they design interfaces that enable users to achieve goals in minimal steps.
They also provide consistent support from system design and development to operation and maintenance. Customization is available to match each client's needs. For companies seeking comprehensive IT services that address diverse needs, Glocal Connect is worth considering.
| Item | Details |
| Company Name | Glocal Connect Inc. |
| Founded | 2021 |
| Capital | 10 million yen |
| Head Office | Takibiru 2F, 3-23-16 Meieki, Nakamura-ku, Nagoya City, Aichi Prefecture |
| Main Features | Specializes in system development with a focus on UI/UX. |
| Website | https://www.glocal-connect.co.jp/ |
4 UX/UI Design Companies Specializing in Website Development
Below is a selection of UX/UI design companies that excel in website development. Refer to this list if you're looking to request a website built with UX/UI in mind.
- Union Co., Ltd.
- Niji Box Co., Ltd.
- GIG Inc.
- Hikarina Co., Ltd.
Let’s take a look at what makes each of these companies unique and appealing.
1. Union Co., Ltd.
Union Co., Ltd. is a web advertising agency based in Shinjuku, Tokyo. As a team of professionals specializing in web advertising and digital marketing, they offer a diverse range of services.
What sets them apart is the ability to request both high-quality UI/UX web development and ad management in one go. For example, they can design sites based on user behavior analysis or plan effective ad distribution strategies. They also offer cost-effective plans tailored to your budget, providing flexibility on the financial front. This makes them a strong choice for companies seeking cost-efficient web strategies or those in need of advertising management support.
| Item | Details |
| Company Name | Union Co., Ltd. |
| Founded | 2012 |
| Capital | 20 million yen |
| Head Office Address | 22F JR Shinjuku Miraina Tower, 4-1-6 Shinjuku, Shinjuku-ku, Tokyo |
| Main Feature | Allows you to request both web development and ad operations in one package. |
| Website | https://union-company.jp/ |
2. Niji Box Co., Ltd.
Niji Box Co., Ltd. is a design company that supports the growth of clients and their services. They offer a wide range of services from UI/UX design to development, operation, and improvement, including website and app development.
Their defining feature is the realization of UI/UX design through a meticulous process. Specifically, they provide detailed support at each stage, including problem identification, concept design, and guideline creation. This enables them to deeply understand the client’s business and challenges, and offer optimal proposals. They are a suitable partner for companies seeking thorough, tailored proposals based on their unique situation and needs.
| Item | Details |
| Company Name | Niji Box Co., Ltd. |
| Founded | 2010 |
| Capital | 100 million yen |
| Head Office Address | 4F Hulic Ginza 7-chome Bldg., 7-3-5 Ginza, Chuo-ku, Tokyo |
| Main Feature | Patiently supports every stage from issue discovery to concept design and guideline development. |
| Website | https://www.nijibox.jp/ |
3. GIG Inc.
GIG Inc. is a digital consulting company headquartered in Tokyo. They provide comprehensive support for web strategies including website development, web marketing, and web service creation. The company also supports data utilization, such as the implementation and analysis of marketing automation (MA).
For example, they optimize site structure based on user behavior analysis and can devise effective marketing strategies. For companies facing challenges in concept design or analysis methods, GIG can be a valuable partner.
| Item | Details |
| Company Name | GIG Inc. |
| Founded | 2017 |
| Capital | 176.65 million yen (including capital reserve) |
| Head Office Address | 4F The Park Rex Nihonbashi-Hamacho, 1-11-8 Nihonbashi-Hamacho, Chuo-ku, Tokyo |
| Feature | Offers UX design from service design to concept development in the web consulting domain. |
| Website | https://giginc.co.jp |
4. Hikarina Co., Ltd.
Hikarina Co., Ltd. is a creative agency focused on UI/UX design for web services and apps. Their standout approach integrates three perspectives: users, business, and development. Their service range is wide, covering new production, improvements to existing websites, content creation, and attracting users.
They are particularly strong in UI/UX design for financial and Fintech services. For example, they can design intuitive interfaces for complex financial services or develop apps that balance usability with security. This makes them an ideal choice for financial or Fintech companies, or any business looking for UI/UX design expertise in these fields.
| Item | Details |
| Company Name | Hikarina Co., Ltd. |
| Founded | 2014 |
| Capital | - |
| Head Office Address | 3F HOLDER, 4-12-8 Roppongi, Minato-ku, Tokyo |
| Main Feature | Track record in brand development. Especially skilled in UI/UX design for financial and Fintech-related services. |
| Website | https://hikarina.co.jp/ |
4 Development Companies Supporting Large-Scale UX/UI Projects
Here is a selection of four companies that can support large-scale UX/UI initiatives.
- Goodpatch Inc.
- Monstarlab Holdings Inc.
- Loftwork Inc.
- AISLEAD Design Inc.
Let's explore the features and strengths of each company in detail.
1. Goodpatch Inc.
Goodpatch Inc. offers end-to-end support from strategy planning to the growth phase. They handle a wide range of needs, from launching new businesses to improving product UI/UX.
They offer a variety of plans tailored to different needs, including large-scale projects and services that propose UI/UX improvements within a week. With experience supporting major corporations like Suntory and JINS, they are ideal for those who want to work with a company that has a proven track record and can stay involved from start to finish.
| Item | Details |
| Company Name | Goodpatch Inc. |
| Year Established | 2011 |
| Capital | 1.77115 billion yen |
| Head Office Address | 3-3 Uguisudani-cho, Shibuya-ku, Tokyo, VORT Shibuya South 2F |
| Main Features | Strong in providing end-to-end support from strategy planning to the growth phase. |
| Website | https://goodpatch.com/ |
2. Monstar Lab Holdings Inc.
Monstar Lab Holdings Inc. is a system development company that supports DX promotion from all angles. Their services include business design, planning, branding, UX/UI design, app development, and growth hacking.
As part of their "experience design" approach, they support the clarification of brand value, UX design, and the creation of UI design that enables smooth operation. With a wealth of development experience, they offer not only excellent design but also seamless development collaboration. If you're looking to design a superior user experience or aim for scalable UI design, this is a great company to consult.
| Item | Details |
| Company Name | Monstar Lab Holdings Inc. |
| Year Established | 2006 |
| Capital | 1.94057 billion yen (as of the end of December 2023) |
| Head Office Address | Ebisu Prime Square Tower 4F, 1-1-39 Hiroo, Shibuya-ku, Tokyo |
| Main Features | Supports branding, UX design, and UI design for smooth operation. |
| Website | https://monstar-lab.com/ |
3. Loftwork Inc.
Loftwork Inc. is a creative company founded in 2000. In addition to UI/UX design, they have extensive experience in content creation and spatial design.
They can make proposals starting from conceptualization and worldview development, not just UI/UX design. They offer concrete support for service design from scratch. With experience working with not only private companies but also educational institutions and government agencies, they're well-suited for large-scale projects.
| Item | Details |
| Company Name | Loftwork Inc. |
| Year Established | 2000 |
| Capital | 26.875 million yen |
| Head Office Address | 1-22-7 Dogenzaka, Shibuya-ku, Tokyo, Dogenzaka Pia 8F/9F/10F |
| Main Features | Strength in proposals starting from concept and worldview development. |
| Website | https://loftwork.com/jp/ |
4. i3DESIGN Inc.
i3DESIGN Inc. is a design consulting firm that blends business, design, and technology. They cover a wide range of fields in UI/UX design.
Their strength lies in realizing intuitive UI design based on a human-centered design process. Specifically, they deeply analyze user behavior and psychology to design user-friendly interfaces. Their services span mobile apps, SaaS products, business apps, and e-commerce sites.
Given their broad scope, they are a suitable choice for companies unsure about which UI/UX design firm to approach.
| Item | Details |
| Company Name | i3DESIGN Inc. |
| Year Established | 2006 |
| Capital | 325.5 million yen (including capital reserves) |
| Head Office Address | 3F, NMF Aoyama Itchome Bldg., 8-1-22 Akasaka, Minato-ku, Tokyo |
| Main Features | Excels in intuitive UI design based on human-centered design. Wide coverage of fields is a strength. |
| Website | https://www.i3design.jp/ |
4 Key Points for Choosing a UX/UI Design Company
Below are key points to consider when choosing a UX/UI design company.
- Request quotes from multiple companies
- Check their areas of expertise
- Choose a company with a strong track record
- Choose a company with flexibility
Request quotes from multiple companies
When selecting a UI/UX design firm, it's essential to get quotes from multiple companies. As their areas of service, technical capabilities, costs, and offerings vary greatly, comparisons are crucial.
Be sure to obtain quotes from at least three companies and carefully evaluate them. When comparing quotes, look not only at price but also at the quality and specificity of proposals, as well as how the project will be managed.
Also, the speed and attentiveness of their response when requesting a quote can be a good indicator of their work style.
Check their areas of expertise
Each UI/UX design company has different areas of expertise. Some may specialize in app design, while others focus on website development.
To ensure a smooth project, choose a company whose strengths align with your needs.
Choose a company with a strong track record
It's also important to choose a company with a solid track record in UI/UX design. Make sure they have relevant experience similar to your project. If they’ve worked within your industry, they’re more likely to understand its specific needs.
Check their website or other materials to assess their past projects. You might also learn about unpublished work by contacting them directly.
Choose a company with flexibility
Choosing a flexible company is also key. During system development, it's common for needs or conditions to change, requiring adjustments to requirements. A flexible company can adapt to such changes as needed.
Our company, Solashi Co., Ltd, has worked on system development in fast-changing environments like startups and new business launches. We adopt agile development, which accommodates changes in requirements and adapts to evolving conditions. Feel free to contact us for an initial consultation.
For UI/UX-Focused Development, Consult Vietnam-Based Offshore Company "Solashi"
This article has introduced an overview of UI/UX design, the types of services you can request, and how to choose a design partner. By incorporating UI/UX design into your development, you can boost user satisfaction and improve system quality. However, skills, areas of expertise, and scope of services vary depending on the development company. That's why it's crucial to select a partner that aligns with your company's needs.
If you're unsure about where to outsource your UI/UX design needs, consider partnering with Solashi Co., Ltd. At Solashi Co., Ltd, we conduct thorough validations to deliver systems that generate tangible results.
We take the time to carefully listen to your needs and propose the most suitable system to fulfill them. During development, we begin by creating a prototype with minimal viable features. By repeatedly validating effectiveness, we steadily deliver systems that perform.
Leveraging Vietnam’s rich pool of IT talent, we’re able to offer high-quality development services at competitive pricing. With several experienced Japanese project managers on staff, even first-time clients outsourcing development overseas can rest easy. If you're interested, feel free to reach out to Solashi Co., Ltd for a consultation.
Akira Shimazoe
Representative of Solashi Japan LLC. Born in April 1989 in Fukuoka Prefecture. Graduated from the Graduate School of Information and Mathematical Sciences at Osaka Prefecture University. Joined Suntory System Technology Co., Ltd., an IT subsidiary of Suntory Holdings, in 2014. Broadly responsible for the development, operation, and implementation of vending machine delivery management, efficiency improvements, and sales management systems. Founded Yper Inc. in 2017, serving as CTO and CPO. Contributed to the launch and growth of the app-linked delivery bag "OKIPPA." Selected for Toyo Keizai's prestigious "Amazing Venture 100" and Forbes' "Forbes 30 Under 30 Asia 2019."
