Top API Startups in Japan (2025 Update)
Explore the best API companies in Japan. Discover high-growth startups and investment opportunities in our 2025 updated list.
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Explore Top API Startups in Japan featuring 6 Companies
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株式会社TWOSTONE&Sons | - | ～エンジニアと共に、未来に改革を～ あらゆるエンジニアが⾃由に、そして活き活きと... |
ITエンジニアに特化した転職⽀援を⾏う「Tech Stars」 フリーランスへの独⽴⽀援と案... |
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Japan
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- | Japan (HQ) | 2013 | API, IT +4 | - |
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Low
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111
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397 (-100%) | 6 years ago | Corporate Round | 3 | 1.2M | 2 | 5 wcf uzP | |
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Gengo | - | Professional online translation services in 300 languages | Gengo is a global provider of crowdsourced human translation at scale. Via our o... | - |
Japan
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- | Japan (HQ) + 1 | 2008 | API, Education +1 | [email protected] |
1
Low
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968
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369.5K (-12%) | 9 years ago | Series C | 7 | 25.3M | 20718 | 5 months ago | |
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ListenField | - | Gather, process and analyze multilayer data to provide comprehensive precision... |
Predicting Soil to Harvest: Crop Modeling & AI Unlock Sustainable Growth. Data-d... |
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Japan
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- | Japan (HQ) + 1 | 2017 | AI, API +3 | [email protected] |
1
Low
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22
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1.5K (-42%) | 2 years ago | Non Equity Assistance | 5 | Unknown | 1536 | 6 months ago | |
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株式会社スリーシェイク | - | Simplify Infrastructure and Innovate Further | スリーシェイクは、サービス開発する上での労苦〈Toil〉を無くすためにSRE支援ソリュ... | - |
Japan
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- | Japan (HQ) | 2015 | API, Advertising +3 | [email protected] |
1
Low
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62
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8.6K | 6 months ago | - | 2 | 1.5B | 249 | 1 year ago | |
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Kyuzan Inc. | - | We build NFT games and tools for brands and creators to build their own NFT serv... | Kyuzan's mission is to make NFTs and blockchain accessible for everyone. We buil... | - |
Japan
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- | Japan (HQ) | 2018 | API, Blockchain +5 | [email protected] |
1
Low
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5
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1.7K (-19%) | - | - | - | - | 560 | 4 lJD 6ma | |
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Pocketpair, Inc. | - | A top indie game company in Japan | Pocketpair is a leading indie game development company in Japan, attracting atte... | - |
Japan
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- | Japan (HQ) | 2015 | API, Gaming +1 | [email protected] |
1
Low
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12
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484.6K | - | - | - | - | 394 | 10 5yX FeE |