Blue J Raises $122M in Series D for AI Tax Research Expansion - InforCapital

Blue J, a prominent GenAI tax research platform, revealed on August 4, 2025, that it has successfully raised $122 million in a Series D funding round. This round was led by Oak HC/FT and Sapphire Ventures, and saw participation from Intrepid Growth Partners, previous investors Ten Coves Capital, and CPA.com. This funding round signifies the market's consensus of Blue J’s dominance in its niche, a mere seven months post the Series C round.

Blue J's CEO and co-founder, Benjamin Alarie expressed his elation over the partnership with these firms, which have a history of supporting market-defining companies. He stated that their commitment is a validation of Blue J's vision to revolutionize tax research. He further announced that this capital and industry backing will allow them to hasten innovation and offer increased value to tax professionals, while continuing to shape the future of tax.

Allen Miller, Partner at Oak HC/FT, highlighted how Blue J's AI solution has efficiently addressed the long-standing challenge of time-consuming tax research. According to him, Blue J is well-positioned to set the new standard for complex tax questions with their solution that accelerates research and improves accuracy.

Cathy Gao, Partner at Sapphire Ventures and the newest board member of Blue J, commended the company for its deep domain expertise, proprietary data, and business-impacting product. She emphasized how Blue J, by applying generative AI to decades of tax rulings, has reduced hours-long research to mere minutes. The company has gained trust among enterprise clients, earned the embrace of top firms, and is loved by practitioners.

Blue J's platform harnesses advanced generative AI to provide instant, reliable responses to complex tax questions spanning U.S. federal, state, and local tax, as well as Canadian and UK tax law. The platform works on a meticulously curated database of authoritative tax laws and is consistently improving through learning from millions of user queries each year. As a result, practitioners can tackle even the most challenging tax issues with unparalleled confidence and speed.

Blue J's user-friendly tax research platform stands out from legacy keyword-based research tools, providing answers in seconds, complete with relevant source citations. The company boasted a more than doubled revenue and customer base in the initial half of 2025, and now caters to tens of thousands of tax professionals across numerous organizations that depend on Blue J for authoritative tax research, analysis, and answers. With the Series D funding, the company plans to further accelerate team expansion, product development, and market reach.

Blue J's growth has been rapid since January 2025, including an expansion to over 80 employees and more than double its rate of new customer acquisition. With its new investment and market momentum, the company is ready to establish the new standard for AI-driven tax research as global tax complexity continues to rise.