Top 6 Smart Contract Companies in Japan
The Best of December 2025Looking for a top smart contract developer in Japan?
Smart contract development ranges in cost from $5,000 to $100,000 depending on the complexity of programming and deploying the contract. To get started, smart contract developers should define the contract requirements, create the code, test the contract, and deploy it. These steps may sound simple, but smart contracts must consider all rules to ensure a digital transaction works as planned.
Smart contract development is a required skill for any blockchain developer you work with. When hiring a blockchain development company, ask about its experience creating smart contracts and its approach.
To assist you in your search for a partner, we’ve compiled this list of the top smart contract companies in Japan. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Japan Smart Contract Developers
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1Undisclosed50 - 249 employeesShibuya, JapanSORAMITSU | 2016-2025 is a Blockchain company. Founded in 2016, the firm focuses on Blockchain and Marketing Strategy.Read More
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2$1,000+250 - 999 employeesChiyoda City, JapanKAOPIZ SOFTWARE is an AI firm. They are located in Hanoi, Vietnam; Chiyoda City, Japan and Singapore, Singapore and have a midsize team. Their services include Artificial Intelligence, Custom Software Development, Web Development, Mobile App Development, and more. The firm was launched in 2014.Read More
Clients
QuantumTX (Singapore) SPRIX Inc. OMRON SonyIndustries
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3$5,000+250 - 999 employeesKoto City, JapanRead More
AMELA Technology, a web development company, was established in 2019. The midsize team focuses on Web Development, Mobile App Development, IT staff augmentation, Artificial Intelligence, and more. The company is in Hanoi, Vietnam and Koto City, Japan.
Clients
SkystreeIndustries
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4Undisclosed50 - 249 employeesShibuya City, JapanBlueOC is a website development firm. Their midsize team of employees is located in Hanoi, Vietnam and Shibuya City, Japan. Their team focuses on Web Development and Mobile App Development.Read More
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5$10,000+1,000 - 9,999 employeesDa Nang, VietnamLarge Blockchain company SOTATEK JSC, is headquartered in Hanoi, Vietnam; Sydney, Australia; Costa Mesa, California and Ha Noi, Vietnam. Established in 2015, the team focuses on Blockchain, Custom Software Development, CRM consulting and SI, Web Development, and more.Read More
Clients
Klaytn FoundationIndustries
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6$10,000+250 - 999 employeesSeoul, South KoreaIn Hanoi, Vietnam; Mountain View, California; North Sydney, Australia and Seoul, South Korea, Savvycom Software is a midsize software development company. Established in 2009, the team focuses on Custom Software Development, IT staff augmentation, Web Development, Mobile App Development, and more.Read More
Clients
North America & Europe: TaylorMadeIndustries
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