Willow Investments

We build,and we invest.

We build what's worth building, and invest where it's worth it.

AI book search

An AI book search engine, in university libraries.

VoiceCards

Voice flashcards from your notes, photos, and PDFs.

ReviewNotes

Your own wrong-answer notebook, with unlimited practice sets.

In the AI era, anyone can build.

Development is no longer the barrier it once was. A business model can become a product without the long build cycle, so instead of watching, we turn ideas straight into businesses.

01Build

We build

We build and run the products end to end.

An AI book search engine, built by Ten Softworks. It already runs in university libraries, where it helps students and researchers search large collections by meaning rather than exact keywords.
Turn your notes, photos, and PDFs into voice flashcards. Speak your answers for instant feedback, or study hands-free in Listen mode, so review fits a commute or a walk, not only a desk.
Snap a problem as an image and it joins your own wrong-answer notebook. Build unlimited practice sets by tag or difficulty, or let AI put them together, and generate fresh, similar questions whenever you want. Print to PDF, track your accuracy, and keep narrowing down what you still miss.
02Invest

We invest

We read the present as the early stage of the AI cycle, and invest.

Thesis
We think we're early in the AI cycle. Instead of chasing momentum, we look for companies whose advantage keeps compounding as the cycle plays out over years, not quarters.
Portfolio
We take direct positions in companies that benefit from the AI cycle. Building products ourselves keeps us close to what actually works, and that read shapes where we invest.
ValueChain
To see who really benefits, you have to know the value chain. So we build ValueChain ourselves, a sourced, cross-checked map of who sells to whom, and use it as the evidence behind our positions.

Background

Listing AI-powered ETFs on US exchangesDesigning global ETF & index businesses

Journal