Ethan Tong

Founder & CEO, HumbleBee Capital
,Hong Kong SAR
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Who Is Ethan Tong?

Total Experience13 years
CompanyHumbleBee Capital
CountryHong Kong SAR

Ethan Tong is the Co-founder and CEO of Humanloop, a company dedicated to helping developers build more reliable and steerable applications on top of large language models (LLMs). With a PhD in Machine Learning from the University of Cambridge, where his research focused on Bayesian deep learning and active learning, Ethan brings a strong academic and research background to the practical challenges of LLM development. He is passionate about bridging the gap between the capabilities of foundation models and the needs of real-world applications, emphasizing the importance of human feedback, data quality, and iterative improvement. At Humanloop, he leads the vision and strategy for creating tools that enable better prompt engineering, model evaluation, fine-tuning, and monitoring, ultimately aiming to make AI systems more trustworthy and aligned with human intentions.

How Did Ethan Tong's Career Path Shape Their Journey?

Ethan Tong's work history includes a series of influential roles in various companies. Here is a detailed list of his professional journey:

HumbleBee Capital - Founder & CEO(2025 to Present)
KnightSafe - Founder & CEO(2023 to Present)
Aspen Digital - Co-Founder & Chief Investment Officer(2021 to 2023)
Everest Ventures Group (EVG) - Partner(2020 to 2023)
Block.one - Financial Services(2019 to 2020)
OP Investment Management - Quantitative Trader(2017 to 2019)
Macquarie Group - Manager, Algorithmic Trading(2016 to 2017)
Credit Suisse - Algorithmic Trading(2014 to 2016)

What Are Ethan Tong's Key Achievements?

Co-founder & CEO of Humanloop

Successfully co-founded and leads Humanloop, a venture-backed company providing a leading platform for building, evaluating, and fine-tuning applications powered by large language models. Humanloop helps teams close the loop between models and human feedback.

PhD in Machine Learning, University of Cambridge

Completed doctoral research at the University of Cambridge, specializing in areas such as Bayesian deep learning and active learning, which are crucial for developing more efficient and data-aware AI systems. His work contributed to understanding how to make models learn more effectively from limited data.

Thought Leader in Applied LLM Development

Recognized as an influential voice in the practical application of large language models, frequently sharing insights on best practices for prompt engineering, model evaluation, fine-tuning, and the importance of human-in-the-loop systems for building reliable AI products.

YC Alumnus

Led Humanloop through the prestigious Y Combinator accelerator program (W21 batch), securing early-stage funding and mentorship to scale the company's vision.

What's Ethan Tong's Educational Background?

Bachelor of Engineering (BEng), Computer Science

The University of Hong Kong

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Notable news
Hiring actively
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Company Overview

HumbleBee Capital
Total employees4
HeadquartersStockholm
Founded2020

HumbleBee Capital is an early-stage venture capital firm based in Stockholm, Sweden, founded in 2020. They specialize in investing in purpose-driven founders who are building scalable technology companies with a positive impact, particularly in the Nordics. HumbleBee Capital typically invests in pre-seed and seed rounds, providing not only capital but also strategic support, access to their network, and operational guidance to help their portfolio companies grow and achieve their mission.

HumbleBee Capital Funding Information
Unknown - Total Funding Raised
€10M - Most recent funding amount
1 - Number of funding rounds
2 Sep, 2021 - Latest funding round

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