We build the software that's eating your margins — for a fixed price, in weeks.
Perimeter Software is an Austin software company, founded in 1994, that builds AI and web projects on a fixed-bid basis — and stands up the AI scoring and ranking infrastructure that tells a sales team which prospects are actually worth the call.
Pick your bottleneck.
AI & Web Development
Web applications, integrations, agentic workflows, and process automation — quoted as fixed-bid projects, not hours. Our mastery of AI tooling is why the same build costs less here and lands in weeks. You see a working demo of your solution before you commit a dollar.
Get a fixed-bid quote →Prospect Scoring & Ranking Infrastructure
Your reps are working a list nobody trusts. We stand up AI discovery, enrichment, and scoring over your whole market — every company ranked 0–100, with a written reason — then train your team to run it. A short consulting engagement; the system is yours.
Score your market →Not a 2024-vintage AI agency.
Perimeter Software shipped commercial SaaS before "SaaS" was a word. We're a 30-year software operation that now builds with AI — not a newcomer riding the hype.
Demo before dollar
Before you sign, we build a small working demo of your solution — your branding, your workflow — so you evaluate a finished flow, not a proposal deck.
Fixed bid, not an open meter
A scoped phase, a price, and a date. Hourly billing pays a vendor for being slow; our speed belongs in your budget.
Quality is a discipline, not a vibe
Specs precise enough to be followed literally, automated evaluation of AI output, and guardrails sized to the cost of a mistake. The seven patterns →
AI where it thinks, code where it must not fail
AI makes the judgment calls; deterministic code does the repeatable work. That's why our systems hold up in production instead of demoing well and failing quietly.
Senior team, no bench-warmers
A veteran founder and an international senior engineering team that has shipped together for years — design, front end, back end, QA — with an overnight-turnaround advantage.
Thirty years of production scars
Multi-tenant SaaS, SOC 2 programs, and architecture audited clean in M&A due diligence. We've maintained what we built, which changes how you build.
Common questions
What does Perimeter Software do?
Two things. We build AI and web software projects on a fixed-bid basis for mid-sized businesses, and we stand up AI prospect scoring and ranking infrastructure for companies that sell to small and mid-sized businesses, then train their teams to run it.
How are projects priced?
Fixed bid. We scope a phase, quote a number and a date, and deliver it. Because our AI tooling makes a senior team far more productive, that productivity shows up in the quote rather than in a longer timesheet.
How do you keep AI-built software reliable?
We separate the layers: plain-language playbooks say what should happen, AI handles judgment and exceptions, and deterministic tested code does anything that must not fail. On top of that we apply seven disciplines — specification precision, automated evaluation, multi-agent decomposition, failure-pattern recognition, trust and security design, context architecture, and token-cost economics.
Do we see anything before we pay?
Yes. For development work we build a small working demo of your solution first. For scoring work we score a slice of your real market and walk you through why each company ranked where it did.
Where are you located?
Austin, Texas — 8911 N Capital of Texas Hwy, Suite 4200, in the Westech 4 building on Loop 360. The engineering team spans several time zones, and we work with clients anywhere in the United States.
The first look costs you nothing.
Tell us what needs building, or which market needs scoring. We'll come back with the three highest-ROI moves — and a working demo of the first one.
Start the conversation