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Cronwell

Founder Letter

The Work Between Factories

Robots automate production inside factories. AI agents automate the coordination between them.

By Alex Zhang, Co-founder and CEO of Cronwell · April 2026

The next great wave of AI will not just produce more text, code, and images.

It will help us build more of the physical world.

Cheaper energy. Better batteries. Space data centers. Humanoid factories. New medical devices. Habitats on Mars.

This is the future we are building for: a world where physical abundance becomes easier to create.

But physical abundance does not come from a model alone.

Someone still has to build the thing.

That means materials, machines, tolerances, suppliers, production lines, quality systems, and people who know how to turn a design into something that works every day.

The application layer of the physical economy depends on a manufacturing ecosystem underneath it.

And the real infrastructure of that ecosystem is not only the final factory.

It is the tier two and tier three supplier network: machine shops, PCB assemblers, cable houses, coating companies, materials suppliers, test labs, contract manufacturers, and thousands of specialists most people never hear about.

They are the capillaries of the physical economy.

They carry the knowledge, capacity, and process detail that let hardware companies move from prototype to production.

This is why manufacturing scale matters.

There is a common belief that advanced economies can stay at the top of the value chain by focusing on high-mix, low-volume, differentiated manufacturing.

There is truth in that. Advanced hardware often starts with difficult, technical, low-volume work.

But it misses something important.

High-volume manufacturing does not just make products cheaper. It creates the supplier ecosystem that makes the next product easier to build.

When enough demand flows through a manufacturing ecosystem, tier two and tier three suppliers get stronger. They buy better machines. They learn processes. They specialize. They develop capacity. They see enough edge cases to become useful partners instead of just vendors.

That is why high-volume manufacturing compounds.

It does not only produce the current generation of products. It builds the infrastructure for the next generation.

For founders, this matters enormously. If the supplier ecosystem is dense, they can make and break things faster. They can try a new connector, change a coating, redesign a bracket, or test a different material without rebuilding the entire supply chain from scratch.

Scale creates suppliers.

Suppliers create iteration speed.

Iteration speed creates innovation.

This is one of the least understood advantages of manufacturing ecosystems.

AI and robotics can change this equation.

Robots can close part of the production gap inside factories.

AI agents can close part of the coordination gap between demand and supply.

That second gap is what Cronwell is built for.

Supply chain is a two-sided system.

On one side is demand: hardware companies, OEMs, contract manufacturers, and founders trying to build products, launch programs, reduce cost, qualify alternatives, and move faster.

On the other side is supply: companies with machines, materials, capacity, certifications, process knowledge, and hard-earned manufacturing judgment.

Innovation slows down when these two sides cannot coordinate.

The buyer does not know who can build the part. The supplier does not understand the real demand. A supplier has capacity, but nobody knows. A startup needs a production partner, but only knows the three suppliers a friend recommended.

The visible symptoms are emails, RFQs, quotes, spreadsheets, supplier calls, PO updates, engineering notes, quality documents, and status reports.

But the deeper problem is not the paperwork. It is that demand and supply cannot see each other clearly enough to move fast.

That determines how fast hardware companies learn.

If robots become the workers inside factories, AI agents can become the workers between companies.

Not replacing human judgment.

Not deciding unilaterally which supplier to trust.

Not pretending that qualification, quality, and relationships can be automated away.

The useful work starts with coordination.

An AI agent can help demand become legible to supply: what is needed, when, at what quality, at what volume, with what constraints.

It can also help supply become legible to demand: who has capacity, who has the right process, what tradeoffs exist, what changed, and what alternatives are real.

That includes the daily work of quotes, follow-ups, delivery updates, reports, and what-if analysis. But those are not the point. They are the mechanism.

The point is to make the supplier network easier to use.

This is not just procurement.

It is infrastructure for the physical economy.

If we want better energy, better transportation, better medical devices, better industrial equipment, better robots, and better space technology, we need the supplier networks that make those products real.

And we need those networks to be easier to use.

Today, too much of the network is hidden behind relationships, old emails, local knowledge, and manual coordination. The knowledge exists, but it is hard to access. The capacity exists, but it is hard to discover. The demand exists, but it is hard to translate into supplier work.

Cronwell exists because we think this coordination layer should become intelligent.

We are starting with manufacturing procurement because that is where the coordination problem shows up every day: RFQs, supplier communication, PO tracking, delivery monitoring, reporting, sourcing execution, and what-if analysis.

But the destination is bigger than procurement software.

We want to help demand and supply in the physical economy find each other, understand each other, and work together faster.

The future of AI should not only be more content, more code, and more chat.

It should also be cheaper energy, better products, stronger supplier ecosystems, and a physical world that can improve faster.

That requires production capacity.

It also requires coordination capacity.

Cronwell is building the coordination layer for the physical economy.