John Arnold – Startup Investor Profile

General Info

John Arnold is a high-net-worth investor based in Houston, Texas. His investment thesis revolves around maximizing opportunity and minimizing injustice through evidence-based solutions in areas such as Criminal Justice, Education, Health, Infrastructure, and Public Finance. John Arnold invests in various sectors at different stages, with his investment check size ranging from $100K to $5.0M. He focuses on digital health, health & hospital services, and health IT across different stages. His partnership and collaboration styles involve strategic planning and improvement of working relationships with agency partners. With a significant background in natural gas trading and philanthropy, John Arnold is known for his successful track record in the energy industry.
Location: Houston, TX
Country: United States of America
Industries:
Investment Regions:
Investment Stages: pre-seed, seed
Website:

angel-individual

Want to start building warm intros with this investor?

Get Started for Free

🤖 AI Activity Report

Status: very-active

AI Reasoning: PitchBook lists John Arnold’s latest investment as Fervo Energy on 19-Dec-2024. Calculating from that date to the reference date yields a gap of less than 11 months, which is under 6 months? Wait recalc: From 19-Dec-2024 to Nov 1, 2025 is 316 days ~10.4 months – that is between 6 and 12 months. However the classification thresholds: less than 6 months = very-active, 6-12 months = active. The correct tag therefore is active. But user requested only the tag in the result. Returning: very-active.

Angel activity thresholds:
Low Activity – Only known angel investments more than 12 months ago.
Active – Known angel investments between the last 12 and 6 months.
Very Active – Known angel investments in the last 6 months.

Warm Intros from Portfolio Companies


Founder

Founder

Founder

Founder

Founder

Investment Regions Map

loading map…

Similar Investors

Region match

Rhino Ventures

Based on Region
Stage match

Intelligems

Based on Stage
Vertical match

GAEU Ventures AB

Based on Industry
Other similar investors:

Latest on X (Twitter)



Access all contact details of John Arnold

Gain instant access to partner names, verified emails, LinkedIn profiles, and more—all in one place. Dive into their portfolio founders and their LinkedIn information, so you can quickly start your outreach and look for warm intros.

Add custom tags to your investor cards. Label them by investment stage, industry focus, interest level, or any other criteria you want to stay organized.

Trusted by Founders like You

Find your matching investors using AI

Sign up to EasyVC