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Top Web3 Developers in Japan

Ratings Updated: April 23, 2025

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9 Companies

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0 Leaders 9 Contenders

9 Companies

Country: Japan

Blockchain Focus: Web3

List of the Top Japan Web3 Development Companies

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Vauldex

4.9 5 reviews

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Premier Verified

$5,000+

$25 - $49 / hr

50 - 249

Fukuoka, Japan

Services provided

20% Blockchain

30% Mobile App Development

30% Web Development +3

10% Enterprise App Modernization

5% Custom Software Development

5% E-Commerce Development

Focus Areas

40% Web3

40% Ethereum Development

20% Smart Contract Auditing

Vauldex is a Blockchain Development firm specializing in distributed ledger technology, smart contract development, and decentralized system development. The company received consistently positive feedback, with reviews highlighting their reliability, integrity, and responsive project management. One area for improvement noted was the need for 24/7 customer support.

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Reviews mention Passionate about their work

Clients consistently highlight Vauldex's passion for their work, noting their impressive kindness, responsiveness, and speed in project management. One client emphasized being 'very satisfied' with the team's dedication, which contributed to successful outcomes. This sentiment reflects a strong overall impression of Vauldex's commitment to delivering quality results and meeting client needs effectively.

Custom Software Development for Financial Services Company

4.5 May 28, 2024

I'm impressed with their kindness, speed, and passion.

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1 of 1 Blockchain reviews are 5 stars

$200,000 – $999,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Custom Software Development for Financial services

5.0 — Vauldex developed a trading platform for a cryptocurrency company. The team was responsible for the platform's architecture, UI/UX design, blockchain integration, trading features, security, QA, and Read more

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Vauldex is very responsive

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Japan (2)

Philippines (2)

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AMELA Technology

5.0 24 reviews
Premier Verified

$5,000+

< $25 / hr

250 - 999

Koto City, Japan

Services provided

10% Blockchain

35% Web Development

20% Mobile App Development +3

15% IT Staff Augmentation

10% AI Development

10% Custom Software Development

Focus Areas

35% Web3

40% Smart Contract Development

15% Metaverse Development +2

5% Ethereum Development

5% Initial Coin Offering Consulting

AMELA Technology is a distinguished Blockchain Development company known for its expertise in building decentralized systems and blockchain solutions. The reviews are overwhelmingly positive, highlighting the company's technical prowess and efficiency, with 100% of the feedback praising their project management and timely delivery. Notably, their ability to develop secure and scalable blockchain networks is highly commended.

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Reviews mention Accessible

Clients consistently praised AMELA Technology for their accessibility and responsiveness throughout project engagements. Feedback highlighted the team's availability for collaboration and prompt resolution of issues, with one client noting, "They are always available for our questions." Another remarked on their exceptional project management, emphasizing timely deliveries and effective communication via virtual meetings and messaging apps. Overall, the sentiment reflects a strong appreciation for AMELA's commitment to accessibility and support.

Web Design & Dev & SEO for Mental Health & Medication Co

5.0 Sep 10, 2024

AMELA Technology is a truly amazing company to work with. They are professional, highly skilled and a very personable team. Always available for collaboration, questions and delivered in a timely manner. Overall, they’ve provided an exceptional service.

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Custom Software Dev for AR/VR Software Development Firm

5.0 Aug 17, 2023

Everything from AMELA impressed us, from their faithful, sincere, active and positive working style, timeliness, and significantly, the cost optimization they offered. They are always available for our questions Their expertise in Web/Server/iOS/Android/Network/new technologies such as blockchain Their customer service during and even after the project is done. They took my reviews/feedback to ensure we were delighted as well as to improve if needed.

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1 of 1 Blockchain reviews are 5 stars

1 new review for Blockchain in past 6 months

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

App Dev, Blockchain & IT Staff Aug for Business Services Co

5.0 — AMELA Technology has provided staff to develop a Layer 1 EVM-compatible decentralized blockchain with a hybrid PoSA consensus mechanism for a business services company. The team has done a Read more

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1 of 1 reviews is 5 stars

$10,000 – $49,000 avg. project cost

Reviewed 1 time in the past 6 months

Recent reviews for AMELA Technology highlight their exceptional project management and responsiveness, particularly in the development of a 3D arcade game for Fanatee. Clients praised the company's ability to deliver stunning visuals and engaging gameplay, noting on-time delivery and effective communication. Feedback emphasized AMELA's innovative problem-solving skills and alignment with client values, contributing to a successful partnership. Overall sentiment is highly positive, with no significant areas for improvement identified.

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Australia (2)

Brazil (1)

Estonia (2)

France (1)

Hong Kong (2)

India (1)

Japan (2)

Norway (1)

Vietnam (1)

Ukraine (1)

United States (4)

England (1)

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HashPort Inc.

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Minato City, Japan

Services provided

100% Blockchain

Focus Areas

100% Web3

HashPort Inc. Is a midsize Blockchain company. Founded in 2018, the team focuses on Blockchain.
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Desoul Inc.

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Shibuya, Japan

Services provided

50% Blockchain

25% AI Development

25% Custom Software Development

Focus Areas

70% Web3

30% Tokenization

Desoul Inc., a Blockchain company, is headquartered in Shibuya, Japan. The team focuses on Blockchain and Custom Software Development.
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SORAMITSU | 2016-2025

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Shibuya, Japan

Services provided

20% Blockchain

10% Application Testing

10% Blockchain Marketing +6

10% Corporate Training & Coaching

10% Cybersecurity

10% DevOps Managed Services

10% Digital Strategy

10% Marketing Strategy

10% UX/UI Design

Focus Areas

50% Web3

50% Smart Contract Development

SORAMITSU | 2016-2025 is a Blockchain company. Founded in 2016, the firm focuses on Blockchain and Marketing Strategy.
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TEAMZ Inc.

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Minato City, Japan

Services provided

25% Blockchain

25% Mobile App Development

25% Web Design +1

25% Web Development

Focus Areas

100% Web3

TEAMZ Inc. Is a web design company. They were launched in 2017 and focus on Web Design and Web Development.
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KAOPIZ SOFTWARE

5.0 10 reviews

$1,000+

< $25 / hr

250 - 999

Chiyoda City, Japan

Services provided

10% Blockchain

35% AI Development

30% Custom Software Development +3

10% Mobile App Development

10% Web Development

5% E-Commerce Development

Focus Areas

20% Web3

30% Smart Contract Development

20% Ethereum Development +2

15% Initial Coin Offering Consulting

15% Metaverse Development

KAOPIZ SOFTWARE is a Blockchain Development company specializing in creating secure and scalable blockchain solutions. With an emphasis on Cryptocurrency Development and Smart Contract Development, they received overwhelmingly positive feedback, with an 80% client satisfaction rate highlighting their technical expertise and project management skills. Clients praised their deep knowledge of blockchain technology and commitment to security, although some suggested improvements in UI/UX proactivity.

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Reviews mention Customized support

Clients have consistently praised KAOPIZ SOFTWARE for their customized support, highlighting their ability to understand unique business needs and provide tailored solutions. One client noted the team's 'personalized touch' and comprehensive training that facilitated seamless integration of new features. Another emphasized their responsiveness and problem-solving attitude, stating that nothing felt unsolvable. Overall, the sentiment towards KAOPIZ's customized support is overwhelmingly positive, with clients appreciating their commitment to client success and the bespoke nature of their services.

AI Development for IT Outsourcing Company

5.0 May 13, 2024

The team at Kaopiz Software exceled in addressing our needs with a personalized touch, ensuring our unique demands are met. Their project management went the extra mile, offering comprehensive training for effortless integration of new features. Highly recommended for tailored solutions and attentive service.

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Custom Software & E-Commerce Dev for Fashion Company

5.0 Nov 28, 2023

Kaopiz impressed us with their meticulous project management principles and extremely responsive support across the entire website development process. Most importantly, KAOPIZ SOFTWARE listened carefully to all our needs, even if it was last minute. Nothing ever felt like an unsolvable problem to them.

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1 of 1 Blockchain reviews are 5 stars

1 new review for Blockchain in past 6 months

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Blockchain Software Development for IT Consulting Company

5.0 — KAOPIZ SOFTWARE developed a blockchain wallet system IT consulting company. The team was responsible for building an encrypted backend infrastructure and integrating APIs. Read more

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3 of 3 reviews are 5 stars

1 new review for Blockchain services

$10,000 – $49,000 avg. project cost

Reviewed 3 times in the past 6 months

Recent reviews for KAOPIZ SOFTWARE reflect a strong overall sentiment of satisfaction among clients. They have been praised for their excellent project management, timely delivery, and responsiveness. A notable project involved developing a blockchain wallet system, which enhanced transaction efficiency by 40%. Clients also highlighted the company's technical expertise and strategic insights in developing AI-driven solutions. However, suggestions for improvement included a desire for more proactive UI/UX recommendations and additional documentation for future integrations.

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Finland (1)

Singapore (2)

Vietnam (4)

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Consensus Base Inc.

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Shinagawa City, Japan

Services provided

60% Blockchain

40% Business Consulting

Focus Areas

100% Web3

Consensus Base Inc. Is a Blockchain company. Their small team is located in Shinagawa City, Japan. Their team focuses on Blockchain and Business Consulting.
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SOTATEK JSC

5.0 41 reviews

$10,000+

$25 - $49 / hr

1,000 - 9,999

Chuo City, Japan

Services provided

45% Blockchain

15% Custom Software Development

10% AI Development +3

10% CRM Consulting and SI

10% Mobile App Development

10% Web Development

Focus Areas

10% Web3

35% Ethereum Development

35% Smart Contract Development +1

20% Initial Coin Offering Consulting

SOTATEK JSC is a proficient blockchain technology company specializing in Blockchain Development, Smart Contract Development, and Decentralized Application Development. The reviews reflect a 100% positive sentiment, highlighting their expertise, adherence to timelines, and excellent project management. Clients commend their deep understanding of blockchain solutions, efficient communication, and commitment to delivering high-quality projects on time.

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Reviews mention Accessible

Clients consistently highlight SOTATEK JSC's accessibility and responsiveness throughout their projects. One CEO noted the team's commitment to support, stating they were 'reachable at any time' and effectively handled misunderstandings. Another review emphasized the open access provided to all staff members, which facilitated collaboration. Overall, the sentiment regarding accessibility is overwhelmingly positive, with clients appreciating SOTATEK's availability and proactive communication during project execution.

Blockchain Dev Services for Cryptocurrency Wallet

5.0 Jul 4, 2022

The project management was effective. During the process, we ran into a few difficulties and misunderstandings, but the team handled them well. We used Jira to keep track the flow and discussed daily through Slack and GoogleMeets. They were reachable at any time. I really appreciated their spirit team!

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Custom Dev for Fintech Cryptocurrency Platform

5.0 Aug 17, 2021

Sotatek provided a project manager to help organize work. They provided open access to all staff members, which we appreciated.

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2 of 2 Blockchain reviews are 5 stars

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Blockchain & Software Development for Video Game Company

5.0 — SOTATEK JSC has integrated blockchain technology into a video game company's systems. The team has developed a solution to handle in-game transactions and designed a blockchain-based system. Read more

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1 of 1 reviews is 5 stars

$10,000 – $49,000 avg. project cost

Reviewed 1 time in the past 6 months

Recent client feedback for SOTATEK JSC highlights their exceptional project management and timely delivery, with one client commending their ability to build a robust app foundation swiftly. The team's professionalism and commitment were noted as key strengths, alongside their effective communication despite time zone differences. Overall, clients express high satisfaction with the value for cost and have reported no significant areas for improvement.

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Albania (1)

Australia (3)

Virgin Islands (British) (1)

Singapore (2)

Vietnam (9)

Switzerland (1)

United States (3)

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Ability to deliver

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Clutch Leaders Matrix

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A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size. Learn More

Focus (x-axis)

Focus accounts for a company’s specialization within a certain service.

Ability to Deliver (y-axis)

Ability to Deliver considers three criteria:

Client feedback and reviews
Work experience and previous projects
Market presence and reputation in the industry

List of the Top Japan Web Development Companies

HashPort Inc.

Undisclosed

Undisclosed

50 - 249

Minato City, Japan

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

100% Blockchain

100% Web3

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Vauldex

$5,000+

$25 - $49 / hr

50 - 249

Fukuoka, Japan

Ability to deliver

32.6/40.0

17/20 Reviews

10/10 Clients & Experience

5.6/10 Market Presence

Service focus

20% Blockchain

40% Web3

80% Other

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Desoul Inc.

Undisclosed

Undisclosed

2 - 9

Shibuya, Japan

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

50% Blockchain

70% Web3

50% Other

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SORAMITSU | 2016-2025

Undisclosed

Undisclosed

50 - 249

Shibuya, Japan

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

20% Blockchain

50% Web3

80% Other

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TEAMZ Inc.

Undisclosed

Undisclosed

10 - 49

Minato City, Japan

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

25% Blockchain

100% Web3

75% Other

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KAOPIZ SOFTWARE

$1,000+

< $25 / hr

250 - 999

Chiyoda City, Japan

Ability to deliver

36/40.0

18.2/20 Reviews

9.1/10 Clients & Experience

8.8/10 Market Presence

Service focus

10% Blockchain

20% Web3

90% Other

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Consensus Base Inc.

Undisclosed

Undisclosed

2 - 9

Shinagawa City, Japan

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

60% Blockchain

100% Web3

40% Other

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AMELA Technology

$5,000+

< $25 / hr

250 - 999

Koto City, Japan

Ability to deliver

36.5/40.0

19.2/20 Reviews

8.7/10 Clients & Experience

8.5/10 Market Presence

Service focus

10% Blockchain

35% Web3

90% Other

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SOTATEK JSC

$10,000+

$25 - $49 / hr

1,000 - 9,999

Chuo City, Japan

Ability to deliver

38.3/40.0

18.8/20 Reviews

10/10 Clients & Experience

9.5/10 Market Presence

Service focus

45% Blockchain

10% Web3

55% Other

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Decentralized Finance
Ethereum
Initial Coin Offering Consulting
Metaverse Development
Smart Contract Auditing
Smart Contract Development
Tokenization
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Top Web3 Developers in Japan

List of the Top Japan Web3 Development Companies

Reviews mention Passionate about their work

Custom Software Development for Financial Services Company

Custom Software Development for Financial services

Vauldex is very responsive

Reviews mention Accessible

Web Design & Dev & SEO for Mental Health & Medication Co

Custom Software Dev for AR/VR Software Development Firm

App Dev, Blockchain & IT Staff Aug for Business Services Co

Reviewed 1 time in the past 6 months

Reviews mention Customized support

AI Development for IT Outsourcing Company

Custom Software & E-Commerce Dev for Fashion Company

Blockchain Software Development for IT Consulting Company

Reviewed 3 times in the past 6 months