graphs of performance analytics on a laptop screen
graphs of performance analytics on a laptop screen

Solving problems with machine learning — and teaching others how to do the same.

Focus Areas

🎓 Practical AI Education

Courses and tools to help you apply AI.

🧪 Micro SaaS & Experiments

Small, high-impact products.

green and white circuit board
green and white circuit board
low-angle photography of metal structure
low-angle photography of metal structure
⚙️ Applied ML Projects

Domain-specific AI solution.

About

Hi, I’m Dan — founder of Acorn Four.

I started this company to build practical AI tools that bridge the gap between theory and impact.

My focus is on delivering elegant, user-first solutions that solve problems and provide real value—not just flashy or over complicated systems.

I hold an EngD in predictive maintenance, where I applied machine learning and sensor fusion to monitor abrasive waterjet cutting systems (published in a peer-reviewed journal), along with a Master’s in materials engineering.

In recent years, I’ve built six courses, launched several AI products, and worked with Tetra Tech RPS on automation tools that cut 210 days of work to 24 hours, forecasting sewage overflows, simulation modeling, and computer vision for asset inspection.

Recent Projects

brown and green textile on brown wooden table
brown and green textile on brown wooden table
Predictive Maintenance Course

Practical machine learning course teaching predictive maintenance through hands-on projects on real data.

an overhead view of a street with a lot of water
an overhead view of a street with a lot of water
a person drawing a diagram on a piece of paper
a person drawing a diagram on a piece of paper
Overflow Forecasting Tool (Tetra Tech RPS - part-time)

AI-powered model and real-time application for forecasting sewage overflow events to support decision making.

Automation Tool (Tetra Tech RPS - part-time)

Reduced 210 days of manual work to 24 hours by automating routine water quality assessments.

Services

Available for selective, applied AI work.

low-angle photography of metal structure
low-angle photography of metal structure
Proof of Concept

Rapid, cost-effective AI tool development to validate ideas and guide strategy.

Product Development

Custom AI solutions tailored to your challenges.

Discovery

Data and challenge assessment to define ROI-focused AI plans.

”It is clear that your knowledge and expertise in this subject have provided a really strong foundation... Thank you for all your hard work and enthusiasm.”

- Kathryn Jackson, Programme Lead

”Dan did it really well in such a short timeframe and delivered great work. I would highly recommend him!”

- Tori Foster, Project Co-ordinator

”Dan was a pleasure to work with and I look forward to working with him again in the future. I would highly recommend him to others.”

- Darren Chiu, Director

Testimonials

Get in touch