Governed Modernization

We replace legacy systems
in weeks — without
breaking production

AI-augmented development delivers speed. Governance ensures that speed doesn't become your next outage.

AI increases leverage. It also increases blast radius.
We design systems so leverage increases — but blast radius does not.

Three ways modernization
goes wrong

Most companies are stuck between options that all carry unacceptable risk.

The enterprise consultancy

$500K+ budgets. 9–12 month timelines. Half the deliverable is documentation you'll never read. By the time they ship, your requirements have changed.

The "vibe coding" agency

Ships fast using AI. No governance. No review gates. One hallucinated dependency or untested migration script and your production database is gone. The savings from AI vanish in a single incident.

🔧

The internal DIY team

Your developers experiment with Copilot and Claude between sprint commitments. No AI governance framework. No migration methodology. Progress stalls after the easy parts are done.

Risk-controlled modernization
with governed AI workflows

We combine AI-augmented development speed with enterprise-grade governance. Every engagement starts with a structured diagnostic.

01

Proprietary Risk Scoring

Our Modernization Risk Index evaluates your codebase across seven weighted dimensions — complexity, dependencies, data architecture, integration surface, team readiness, business criticality, and deployment maturity. No guesswork. Quantified risk.

02

AI Development Governance

We score your organization's readiness for AI-assisted development across prompt governance, output review protocols, dependency validation, context isolation, rollback safeguards, access control, and data leakage prevention. Most agencies skip this. We've seen what happens when they do.

03

Phased Gate Methodology

Every engagement is structured in phases with explicit Go/No-Go gates. No lump-sum commitments. You approve each phase before the next begins. Exit at any gate with full deliverables for work completed.

Modernization Readiness Assessment

$7,500 USD · Fixed Price · 5 Business Days
  • Current-state architecture map
  • Modernization Risk Index score
  • AI Development Risk Index score
  • Phased migration roadmap
  • Risk register with mitigations
  • Go/No-Go recommendation
  • 45-minute executive readout
  • Optional feasibility spike
Your time required ~2 hours total
Code access needed None
Delivery PDF + live readout
Monthly capacity 4 assessments

Where we sit

We're not the cheapest. We're not the slowest. We're the only ones who combine AI speed with governance discipline.

Enterprise Consultancy Gatehouse Systems AI-First Agency
Timeline 6–12 months 4–8 weeks 2–4 weeks
Typical cost $300K–$1M+ $75K–$115K $15K–$50K
AI governance Policy docs, no execution Built into every phase None
Risk methodology Generic frameworks Proprietary MRI + ADRI scoring Ad hoc
Contract structure Large upfront SOW Phased gates, exit anytime Fixed price, hope for the best
Production risk Low (slow = safe) Low (governed speed) High (speed = risk)

Phased execution with
gate approvals at every step

No lump-sum commitments. You control the pace. Exit at any gate with full deliverables.

0

Modernization Readiness Assessment

$7,500 · 5 days · No code access required

Structured diagnostic via architecture walkthrough and documentation review. Produces MRI score, ADRI score, migration roadmap, risk register, and Go/No-Go recommendation.

1

Discovery + Feasibility Spike

$15,000–$20,000 · 2 weeks

Deep-dive into codebase. Validated target architecture. Working proof-of-concept on one module demonstrating migration feasibility. Refined cost and timeline estimates.

2

Core Migration

$40,000–$60,000 · 4–6 weeks

Phased migration of core modules using AI-augmented development under governed workflows. Integration testing. Performance baseline validation. Continuous rollback capability.

3

Hardening + Handoff

$15,000–$25,000 · 2–3 weeks

Production-readiness audit. Security review. Runbook delivery. Rollback testing. Knowledge transfer to your team. Clean handoff with full documentation.

15+
Years in enterprise
systems modernization
200K+
Lines of legacy code
successfully migrated
0
Production incidents
from governed migrations
4/mo
Maximum assessment
capacity

Start with a Modernization
Readiness Assessment

60-minute architecture walkthrough. Decision-grade blueprint in 5 business days. No code leaves your environment.

Limited to 4 assessments per month
Request Assessment →