Software that shows its work.
Mach221B is an independent software studio. We build tools that help people understand what they’re looking at — a team’s decisions, a subject someone’s learning, a family history being traced back.
Get in touchHow we build
- Show the work
- Anything our software tells you can be traced back to where it came from.
- Fast, and still right
- Speed shouldn’t cost accuracy. When it does, we treat it as a bug, not a trade-off.
- People decide
- Our software holds the context and does the legwork. It doesn’t make the call.
The name
Two halves of one idea.
Mach measures speed against the conditions — you can’t state it without saying what you’re moving through. 221B is an address remembered for its method: evidence first, conclusion second, the reasoning laid out so someone else can check it.