
Sam Crombie
Founder of AI-enabled software tools and platforms
samcrombie
San Francisco, California, United States
Joined November 2025
Network
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Summary
Sam Crombie is a serial entrepreneur and product manager with a strong focus on AI-enabled software tools and platforms. He has founded multiple ventures, including Leviathan Encyclopedia (an AI encyclopedia) and Pumpkin (an AI writing product in YC S24), and is co-founder and CEO of Actionbase, which developed the Web Action SDK for web automation. leviathanencyclopedia+3
His career includes significant experience in product management at Microsoft, where he worked on the Edge team focusing on web automation and Copilot integrations like Edge Copilot and Power BI Copilot. This role provided him with expertise in large-scale software development and AI applications. leviathanencyclopedia+1
Sam is an alumnus of Dartmouth College (Class of 2023) with a Bachelor's degree in Computer Science and Human-Centered Design. He further cultivated his entrepreneurial skills through participation in Z Fellows and Y Combinator, demonstrating a consistent drive for innovation and startup building. leviathanencyclopedia+4
Beyond his direct entrepreneurial ventures, Sam actively shares insights on startup building and fundraising, and writes on the intersection of education, economics, and ethics, using platforms like his Substack. He also created a course on how to audit university courses for freeCodeCamp and developed College Compendium, a university course auditing tool. leviathanencyclopedia+3
Work
Education
Projects
Writing
Defining “Artificial Intelligence” in State Legislation: An Analysis of the Current Landscape
July 1, 2024An analysis co-authored with Jack Nicastro about how "artificial intelligence" is defined across U.S. legislation.
Introduction to EEE: Education, Economics, and Ethics
Writings exploring the intersections of AI, economics, education, and ethics.
How to audit university courses
A course he created on freeCodeCamp.
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