Your Experience. Multiplied.
Experience. Multiplied.
AI doesn't replace great salespeople — it amplifies them. CostiganGPT puts 24 years of sales expertise in your pocket. Costigan Consulting deploys AI agents that make your reps faster, sharper, and more effective.
CostiganGPT
John Costigan. In Your Pocket.
CostiganGPT is an AI-powered sales advisor trained on John's complete methodology — 24 years of real-world selling distilled into an instant-response tool your reps can use before, during, and after every sales conversation.
Need help handling an objection you just heard? Paste it in. Want a pre-call plan for a Fortune 500 prospect? Ask for it. Stuck on how to advance a deal? CostiganGPT has the answer.
Get Early Access
Instant Sales Coaching
Ask any sales question and get expert-level advice based on John's 24+ years of methodology. Like having John in your pocket.
Objection Handling
Paste the objection you just heard and get a battle-tested response in seconds. Real frameworks, not generic advice.
Deal Strategy
Describe your deal and get strategic guidance on next steps, stakeholder mapping, and how to advance to close.
Prospect Research
Get help building pre-call plans, identifying pain points by industry, and crafting personalized outreach.
Costigan Consulting
AI Meets Sales Expertise.
Most companies know they need AI but don't know where to start. Costigan Consulting bridges that gap — combining deep sales expertise with practical AI implementation.
We don't just hand you a report and walk away. Our team of live consultants works alongside your organization to evaluate your sales process, identify where AI can have the biggest impact, and deploy real solutions that make your reps more effective.
From CRM automation to AI-powered prospect research to custom sales agents — we build what your team actually needs.
Sales Process Audit
We evaluate your entire sales motion — from lead gen to close — and identify exactly where deals are dying and why.
Rep Effectiveness Assessment
Individual assessments of your sales team to identify skill gaps, coaching opportunities, and who needs what training.
AI Integration Strategy
We evaluate where AI agents can make your reps more efficient — automating research, follow-ups, and administrative tasks so they can focus on selling.
Custom AI Agent Deployment
We build and deploy custom AI agents tailored to your sales process, CRM, and industry. Real agents that do real work.
Our process
From Assessment to Implementation
Discovery Call
We learn your business, your sales motion, your tech stack, and where the gaps are. No pitch — just listening.
Assessment & Audit
Our team evaluates your sales process, rep effectiveness, and AI readiness. You get a detailed report with clear recommendations.
Strategy & Roadmap
We present a custom roadmap — what to fix, what to automate, and what to build. Prioritized by impact and feasibility.
Implementation
We deploy solutions with your team. AI agents, process improvements, training programs — whatever the roadmap calls for.
Be First in Line for CostiganGPT
Join the waitlist and get early access to the AI sales advisor trained on 30+ years of John's methodology. No spam — just your spot in line.
The Future of Sales Is Here.
AI won't replace salespeople. But salespeople who use AI will replace those who don't. Let's make sure your team is on the right side of that equation.