Harvey AI Integrates Mary Tech for Smarter Litigation Fact-Checking

2 min readSources: LegalTech News

Harvey AI now includes Mary Technology’s AI to automate fact-checking in litigation workflows.

Why it matters: Legal teams gain faster, more accurate fact verification directly within Harvey’s platform, reducing manual work and improving case strategies.

  • On Oct 21, 2026, Mary Technology integrated its AI fact investigation into Harvey’s platform.
  • Mary’s AI reads and maps case documents to track and update factual findings as litigation progresses.
  • The integration lets lawyers verify evidence, assess witness statements, and analyze financial data within Harvey.
  • Mary Technology supports 4,000+ lawyers at 150+ firms; Harvey serves 2,400+ customers in 70+ countries.

On October 21, 2026, Mary Technology added its AI-driven fact-checking capabilities to Harvey’s legal AI platform, enabling litigation teams to work with a continually updated, structured foundation of case facts.

Mary’s software scans and organizes all uploaded documents before lawyers ask questions, creating a persistent "fact map" that tracks their findings and evidence reviews throughout the case lifecycle. This dynamic repository lets legal teams evaluate individual allegations, cross-check witness accounts against documents, and scrutinize payments or transfers in financial records – all inside Harvey’s interface.

“The value of AI in litigation depends on the quality of the factual record it works from,” said Daniel Lord-Doyle, co-founder of Mary Technology. Nate Schlein, Head of Product Business Development at Harvey, said, “Integrating Mary lets lawyers leverage their team’s verified facts seamlessly during drafting and research, making case-building much more efficient.”

Mary Technology supports over 4,000 lawyers at more than 150 law firms, while Harvey counts 2,400+ customers spread across 70+ countries. This partnership coincides with Mary’s recent A$7 million funding round aimed at US expansion, and Harvey’s $550 million capital raise in September 2026, raising its valuation to $15.5 billion.

For legal teams, combining Mary’s case fact management with Harvey’s AI tools means faster, more accurate fact validation that can reduce manual review workload and strengthen litigation outcomes.

By the numbers:

  • 4,000+ lawyers — use Mary Technology across 150+ firms
  • 2,400+ customers — Harvey operates in 70+ countries
  • A$7 million — Mary Technology’s recent funding for US expansion