For problems that don't come in a box.

Not every problem needs custom code. But some outgrow their packages, and some never had one to begin with. That's where we work.

OrchardNumerical is a principal-led consultancy, founded by Colin McNally, Ph.D., doing numerical and computational work: building workflows, solving problems that don't fit standard tools, and producing results that can withstand scrutiny and be trusted. We work with deep-tech startups, small firms without an in-house numerics person, and research groups bringing in outside computational capacity.