Shared Standards. No Freelancer Roulette.
Every expert follows the same playbook. Whether you work with a Pharmaceuticals GPO, an Automotive Credit Director, or an FMCG SME specialist — they speak the same language and follow the same governance: the Callisto JGL Framework.
Don't Just Hire an Expert.
Hire an Ecosystem.
Traditional recruitment places an isolated individual. If they get stuck, you get stuck.
Callisto Experts are plugged into the Hive Mind: a real-time network of 5,000+ O2C leaders. They do not guess at benchmarks or local regulations. They query the network and get definitive answers in hours, not weeks.
When you hire one of us,
you get all of us.
Every engagement is backed by a network of 5,000+ O2C practitioners. Your expert doesn't guess. They consult the collective.
Not a Recruiter
We don't sell CVs. We refer operators who have solved your exact problem before.
Not a Consultancy
We don't staff juniors with slide decks. We embed practitioners who build and fix.
Not Freelance Roulette
We don't gamble on independents. Every expert is vetted by peers who know the work.
Three Ways to Engage
Every engagement is designed around your specific problem. No filler. No scoping theatre.
Fractional Leadership
Your next O2C Director is already in our network. We refer leaders who have run multi-billion dollar portfolios across Pharmaceuticals, Automotive, and FMCG.
- Interim GPO / O2C Director
- Transformation Steering
- M&A Integration Leads
- Crisis Stabilization
- Executive Mentoring
- Board-Level Strategy
Surgical Sprints
A 4-week fix. Not a 6-month discovery. We solve specific problems: DSO reduction, SAP migration, dispute resolution overhaul.
- DSO / Cash Acceleration
- Dispute Process Overhaul
- Global Credit Policy Design
- SAP S/4HANA Migration
- AI Readiness Assessment
- Controls & Compliance Fix
Peer Councils
Honest feedback from people who do your job. We assemble 3-5 senior GPOs from non-competing industries to stress-test your strategy.
- Strategy Pressure-Test
- Vendor Selection Validation
- Board Prep & Mock Review
- Transformation Roadmap Audit
- Cross-Industry Benchmarks
- Unbiased External Challenge
Some of the Experts in Our Network
A snapshot of the people behind Callisto Grand. We have unparalleled access to 100s of O2C experts globally — with more joining every month.
Brad Morris
Training & Development
Stephan Glismann-Bringmann
Credit Control & Automation
Mark Harrison
O2C Strategy & Leadership
Nicola Rowland
Programme Management
Tom Dobis
Process Transformation
Let's Start a Conversation
Whether you have questions about our training programs, events, or membership, we're here to help. Reach out and a member of our team will get back to you promptly.
Email Us
info@callistogrand.comGlobal Reach
Serving professionals in 50+ countries worldwide
Response Time
We typically respond within 24 hours
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