Future-Ready O2C
O2C is evolving fast. What matters now is judgement, governance, and leadership.
Callisto is the professional home for O2C teams navigating this shift. Through insight, training, and peer-level events.
Trusted by Industry Leaders
Partnering with the world's leading O2C technology and service providers
How Callisto Helps
Insight, training, and peer-level events. Everything O2C teams need to stay credible and in control.
Credit Matters XIV
Where O2C leaders come to think ahead.
Credit Matters brings together the practitioners shaping the future of Order-to-Cash. Two days of insight, challenge, and connection, designed for teams serious about staying ahead.
- Two days of practitioner-led insight
- 40+ speakers from global O2C teams
- Networking with peers from 50+ countries
- Gala dinner and awards ceremony
- CPD accredited attendance
Build the Skills That Matter
Judgement. Governance. Leadership. The Callisto Academy develops the capabilities O2C teams need as the function evolves.
Why Choose Callisto Academy?
We develop O2C professionals who can lead through change. With the judgement to escalate, the governance to protect, and the credibility to influence.
The Callisto Global Network
A carefully curated community for senior O2C professionals who want candid peer advice, not vendor pitches. We review every application to protect the quality of conversation our members depend on.
Global Peer Network
Connect with senior O2C leaders from 50+ countries. Vendor-free, practitioner-only.
Vetted Membership
Every application is reviewed to maintain the quality and trust our members expect.
Private Discussion Forums
Candid conversations on S/4 HANA migration, AI adoption, burnout, and leadership.
CPD Accreditation
Structured professional development with trackable progress and recognition.
On-Demand Learning
Exclusive access to webinars, conference recordings, and curated resources.
Benchmark Your Team
The Callisto Performance Measure: see how you compare against global best practice.
Your Professional Home in O2C
Where the world's best O2C teams learn from each other
I've spent forty years in Credit and O2C, working across every operating model you can name. In that time, I've watched this profession evolve from back-office function to strategic capability. The teams that make that leap share three things: sound judgement, strong governance, and leaders who invest in their people.
Callisto exists to accelerate that journey. We bring together senior practitioners from leading organisations to share what actually works, prepare for what's coming, and raise the bar for the profession as a whole.
Whether you join us for a conference, a training programme, or ongoing membership, you'll find a community that values substance over theory and peer insight over vendor pitches.
I look forward to welcoming you.
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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