Cornerstone is Will Lammers and Ben Thompson, two forward-deployed engineers in Charleston, South Carolina. We started it in 2026 to give mid-market companies the kind of AI brain tech companies already run on.
You’ll only ever talk to Will or Ben. The people in your first meeting are the people writing the code, and we’ll come to your office, church or jobsite to see the work.
Co-founder, engineer
Before Cornerstone, Will was a forward-deployed engineer embedded in Fortune 500 operations, building automation platforms and internal tools for some of North America’s largest retailers and manufacturers. That work saved them millions. He leads engineering on most of our builds.
Co-founder, engineer
Ben builds full-stack, from the database to the screen, and runs the business side: proposals, contracts and invoices. He turned a coaching firm’s 11-step hiring process into a working app in six days.
Our meetings and email go into our own brain. It pulls out the to-dos, dollar amounts and decisions, and nothing is filed until one of us approves it. Every change can be undone.
We use it every day, on the web, from our phones and inside the AI tools we work in. Whatever we build for you, we’ve tried on ourselves first.
Each project says where it stands: live, rolling out, built or a prototype. When that changes, the page changes.
The first visit is free, and you’ll leave it knowing what we’d build first.
It’s in your name, along with the code and the accounts, with plain-English docs any good developer could pick up. All we keep is the know-how.
It’s the two of us. If that ever changes, you’ll hear it from us first.
A cornerstone is the first stone set in a building’s foundation. Every stone after it is laid in line with it. That’s the job we want our software to do for a business: the first piece you set, the one the rest of the work lines up with.
The mark is a cube drawn as a C, built on an isometric grid, five units to an edge. One edge of the cube is left open. We drew it as exact geometry, so it stays sharp from a browser tab to the side of a truck.