Blue J, a leading generative AI tax research platform, announced it has secured a $122 million Series D funding round. The investment was led by Oak HC/FT and Sapphire Ventures, with participation from Intrepid Growth Partners and previous investors Ten Coves Capital and CPA.com.
This funding round comes just seven months after the company’s Series C funding round, highlighting strong market confidence in its technology.
Blue J’s platform uses advanced generative AI to provide instant, reliable answers to complex tax questions across U.S. federal, state, and local tax (SALT), as well as Canadian and UK tax law. The platform’s intuitive, conversational interface enables users to ask questions without needing specific legal keywords, and it delivers answers in seconds along with relevant source citations.
In the first half of this year, Blue J more than doubled its revenue and customer base, now serving tens of thousands of tax professionals.
How the funding will be used: The new Series D funding will be used to accelerate team expansion, product development, and market reach, positioning Blue J to become the new standard for AI-driven tax research as global tax complexity continues to rise.
KEY QUOTES:
“We’re thrilled to partner with Sapphire Ventures, Oak HC/FT, Ten Coves, CPA.com, and Intrepid Growth Partners — firms with exceptional track records of backing market-defining companies. Their commitment is a powerful endorsement of our vision to transform tax research. With this capital and industry support, we will accelerate innovation and deliver even greater value to tax professionals. We are building the future of tax. This is just the beginning.”
Benjamin Alarie, CEO and co-founder of Blue J
“Tax research has long been a cumbersome, time-consuming task. Blue J has solved this challenge with an elegant AI solution that dramatically accelerates research while raising the bar for accuracy. We believe Blue J will become the new standard for complex tax questions — and we’re proud to support Ben and the team in their next stage of growth.”
Allen Miller, Partner at Oak HC/FT
“Blue J is exactly what we look for in vertical AI: deep domain expertise, proprietary data and a product that drives meaningful business impact. By applying generative AI to decades of tax rulings, Blue J reduces research that once took hours to just minutes. It’s already trusted by enterprise clients, embraced by top firms, and loved by many practitioners. We believe their momentum shows the industry is ready, and we’re proud to back Blue J as they build the operating layer for global tax cognition.”
Cathy Gao, Partner at Sapphire Ventures and Blue J’s newest board member
“Blue J is a leading example of effective AI deployment in one of the most complex information domains. By leveraging OpenAI’s latest models, Blue J has elevated the standard for accuracy, trust, and insight in tax research. We’re excited to continue working together at the forefront of innovation.”
Marc Manara, Head of Startups at OpenAI
