Blue J
Blue J is an AI tax research platform that answers tax law questions for accounting and law firms.
Ark Legal AI vs Blue J
At a Glance
| Detail | Ark Legal AI | Blue J |
|---|---|---|
| Category | Research & Analytics | Research & Analytics |
| Total raised | Not disclosed | $298M |
| Rounds tracked | Not disclosed | 2 |
| Latest round | Not disclosed | Series E, $176M · Nov 2026 |
| Last valuation | Not disclosed | $700M |
| Lead investors | Not disclosed | JMI Equity, Oak HC/FT, Sapphire Ventures |
| Built for | In-house teams, Large firms, Boutiques | In-house teams, Large firms, Mid-size firms |
| Headquarters | US | Canada |
Funding, Side by Side
Ark Legal AI rounds
No public rounds tracked yet.
Blue J rounds
- Nov 2026Series E$176M
- Aug 2025Series D$122M
Our Take
We have not tested these two head to head yet. The numbers above come from public funding announcements. If you use either one, tell us what you found and it may become a Field Note.
Quick Answers
- Which has raised more, Ark Legal AI or Blue J?
- Blue J has raised $298M in disclosed funding, compared with no disclosed amount for Ark Legal AI.
- What is Ark Legal AI best for?
- ArkLegal AI is a legal AI research and writing platform for U.S. law.
- What is Blue J best for?
- Blue J is an AI tax research platform that answers tax law questions for accounting and law firms.
Source: Legal Tech Circle funding data, from public announcements. Updated November 12, 2026.