About
Main Four started because too many capable teams were stuck behind a six-month vendor queue for something a focused pair of engineers could ship in six weeks. We kept the team small on purpose — it is the only way the people you meet stay the people who build.
Why we exist
Every one of us has sat on the other side of this. You know exactly what your team needs. You have a rough architecture in your head. And the estimate comes back as two quarters and a number with too many zeros, most of which pays for people who will never open the repository.
The gap is not talent. It is overhead. Large firms carry account managers, delivery managers, and a bench, and all of it lands on your invoice before a line of code is written.
We run without that layer. Four senior people, direct contact from the first call through handoff, and fixed prices you approve before work starts. It means we turn down work that does not fit. It also means when we say six weeks, we mean six weeks.
At a glance
- Founded
- 2026
- Based
- Indianapolis, IN — remote-first
- Engagements
- Fixed-scope, embedded, or diagnostic
- Typical project
- 6–16 weeks
- Code ownership
- Yours, outright
Systems shipped
Since 2023
Median time to production
First release
Client retention
Repeat engagements
Manual work automated
Annualized, all clients
Principles
Six rules we actually follow, not six words on a wall.
These get invoked in real arguments about real tradeoffs. That is the only test of whether a principle is load-bearing.
The demo is the status report
Percentages complete are a story. Working software on a staging URL is a fact. Every sprint ends with something you can click.
Boring technology, deliberately
Postgres before a new database. A queue before a service mesh. We spend novelty budget on the part of your problem that is actually novel, and nowhere else.
Write it down
Architecture decisions, tradeoffs considered, and why we rejected the alternatives. Six months later, when someone asks why, the answer exists in your repo.
Automate the judgment-free work only
Data entry, reconciliation, routing — automate all of it. The call that needs twenty years of context stays with the human who has it.
Leave it better staffed than we found it
A successful engagement ends with your team confidently owning the code. If we are still load-bearing a year later, we did the handoff badly.
Say the uncomfortable thing early
A scope problem raised in week two is a conversation. The same problem in week ten is a crisis. We would rather have the awkward conversation.
Process
How an engagement runs, start to finish.
Same five phases every time. The durations move; the sequence does not.
- 01
Diagnose
Week 0 · FreeA working session with your team to find where time and money actually leak. You leave with a written opportunity map and a rough ROI model — whether or not you hire us.
- 02
Blueprint
Weeks 1–2Architecture, scope, and a fixed-price plan with milestones. No open-ended discovery phase billed by the hour.
- 03
Build
Weeks 2–10Two-week sprints with a working demo at the end of each one. You get access to the repo and a staging environment from day one.
- 04
Harden
Pre-launchLoad testing, security review, observability, and runbooks. We treat "it works on staging" as the halfway point.
- 05
Hand off
OngoingDocumentation, recorded walkthroughs, and paired sessions with your engineers. You own the code outright — plus a support window on every engagement.
Tooling
What we build with.
Deliberately conventional. We spend our novelty budget on your problem, not on the infrastructure underneath it.
Languages
Frontend
Backend
AI / ML
Infra
Work with us
Small team, short queue.
We take on a handful of engagements at a time, which is why the first call is with the person who would build it. Tell us what you are up against.
Typical reply within one business day