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Blue J

AI tax research platform giving accounting and tax firms cited answers to tax law questions

Blue J (Blue J Legal Inc.), started in Toronto, now sells an AI research tool that answers tax law questions with verifiable sources for advisory, compliance and tax writing. It reports more than 6,000 firm customers, including RSM and Crowe, and has a partnership with Legora to connect tax and legal research. It raised a $122M Series D led by Oak HC/FT and Sapphire Ventures in August 2025.

Market

Legal Research & Knowledge, Tax law research

Based in

New York, United States

Stage

Series D

Founders

Benjamin Alarie (co-founder, CEO)

Website

bluej.com

Funding and deals

• 2025-08: Series D, $122m, led by Oak HC/FT;Sapphire Ventures

Investors

• Sapphire Ventures
• CPA.com
• Intrepid Growth Partners
• Oak HC/FT
• Ten Coves Capital

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