John Ling

John Ling cofounded and leads Longitude Labs, creator of Meridian, building auditable AI tools for financial modeling. He also coauthored BlueFin and SpreadsheetArena, benchmarks that test how well language models create and modify spreadsheet workbooks. He also co-founded Canopy, a software platform for managing private funds.

Career

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Based in: New York City
Elsewhere

Longitude Labs

2025 — Present

Co-Founder and CEO

Co-Founder and CEO of Longitude Labs, creator of Meridian.

Canopy

Aug 2020 — Present

Co-Founder

Encarte

Jan 2019 — Aug 2020

Co-Founder

DN Capital

Jun 2017 — Jan 2019

Investor

Microsoft

Jun 2014 — Sep 2014

Software Engineering Intern

DALI Lab

Sep 2013 — Jun 2014

Project Manager, Back-End Dev

Dartmouth Tuck School of Business

Dartmouth College

Bachelor's studies in software

National Yang Ming University

Deerfield Academy

Taipei American School

Products & media

techcrunch.com

Making financial models auditable

John Ling explains the reliability and traceability requirements behind Meridian’s AI spreadsheet workspace.

Writing

arxiv.org

BlueFin: testing AI on financial spreadsheets

Coauthored benchmark using expert-designed finance tasks to test spreadsheet creation, edits and understanding, including whether formulas remain correct when assumptions change.

Writing

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John Ling

Longitude Labs

Canopy

Encarte

DN Capital

Microsoft

DALI Lab

Dartmouth Tuck School of Business

Dartmouth College

National Yang Ming University

Deerfield Academy

Taipei American School

Products & media

Making financial models auditable

BlueFin: testing AI on financial spreadsheets

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