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Tech Bureau, Corp.
Tech Bureau, Corp. is a Japanese blockchain technology company. It develops the mijin private-blockchain solution and operates DocuTracker, a blockchain-backed digital archive certification SaaS; it also operated the COMSA NFT marketplace, whose service closure was announced and reported in 2025–2026.
Osaka, JP
Funding Rounds
Funding Round: Unknown
Funding Date: 1 Nov, 2017
Raised Amount: $767K
Funding Round: Series B
Funding Date: 1 Sep, 2017
Raised Amount: $15M
Funding Round: Series A
Funding Date: 1 May, 2016
Raised Amount: $6.2M