Top 20 Software Testing Companies in Japan
The Best of December 2025Looking for a top software QA company in Japan?
Hiring a software testing company is a necessity to both test and improve the services your company offers, especially in an increasingly digital world.
To assist you in your search for a partner, we’ve compiled this list of the top software testing companies in Japan. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Japan Software QA Companies
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$5,000+50 - 249 employeesSeattle, WARead More
QA Wolf, an application testing company, was launched in 2019. The company provides application testing and has a small team.
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1$10,000+2 - 9 employeesKobe, JapanRead More
Artifact Consultancy (ARTICON) is an agency in Osaka-shi, Japan. Founded in 2015, they have fewer than 5 employees that serve mostly small-business and midmarket clients in the e-commerce, healthcare, and IT sectors. Their services are specialized in conversion optimization.
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Fractal EngineeringIndustries
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2$50,000+50 - 249 employeesKoto City, JapanCybersecurity company Indo-Sakura Software Pvt Ltd was established in 2006. The agency focuses on Cybersecurity and Blockchain.Read More
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3$100,000+Freelancer employeesKoto City, JapanFounded in 1977, PERSOL PROCESS & TECHNOLOGY is a custom software development firm. The large team offers Custom Software Development and cloud consulting & SI.Read More
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4$5,000+10 - 49 employeesOsaka, JapanEstablished in 2022, G K Intelligent Techsol (Pvt) Ltd is a small ERP consulting and SI company. Their team specializes in ERP consulting and SI and IT staff augmentation.Read More
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5$1,000+10 - 49 employeesIchikawa, JapanLaunch Lab is an Ichikawa, Japan-based branding agency. Their services include Branding and Content Marketing.Read More
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6Undisclosed1,000 - 9,999 employeesWarszawa, PolandRoom 8 Group, an app development firm, was founded in 2011. They specializes in Mobile App Development and Custom Software Development.Read More
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7$5,000+10 - 49 employeesNiigata, JapanIB-Staff is a software development company in Niigata, Japan. Launched in 2020, the team specializes in Custom Software Development and Web Development.Read More
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8$1,000+50 - 249 employeesShinagawa City, JapanTinhvan Outsourcing JSC is a software development company. They specialize in Custom Software Development and Mobile App Development and were established in 2006.Read More
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9Undisclosed50 - 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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10$10,000+50 - 249 employeesMeguro City, JapanWebsite development company CodeComplete Vietnam was founded in 2015. Based in Meguro City, Japan and Danang, Vietnam, the team specializes in Web Development and Mobile App Development.Read More
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11$5,000+50 - 249 employeesChuo City, JapanProtean Studios is a website development firm. In Hanoi, Vietnam and Hai Phong City, Vietnam, the agency was established in 2020. Their team specializes in Web Development and Mobile App Development.Read More
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12$50,000+250 - 999 employeesYokohama, JapanRead More
InApp was founded in 2000 and currently has 300+ employees. Headquartered in Trivandrum, India, their services include web development, custom software development, and mobile app development. They also have another location in Palo Alto, Calif.
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13$25,000+250 - 999 employeesMinato City, JapanRobosoft Technologies Inc. Is a San Francisco, California-based app development company. They offer Mobile App Development, UX/UI Design, Web Development, Custom Software Development, and more and were launched in 1996.Read More
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Warner Bros. Discovery HSBC McDonalds Mercury FinanceIndustries
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14$1,000+10,000+ employeesMinato City, JapanFounded in 1999, FPT Software, a large Digital Strategy company, is in El Segundo, California and Hanoi, Vietnam. Their team focuses on Digital Strategy and cloud consulting & SI.Read More
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15Undisclosed250 - 999 employees千代田区, JapanSollers Consulting, a big data analytics company, offer BI & big data consulting & SI and cloud consulting & SI. They were founded in 2000.Read More
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