Grey Rhino Crash

Building the future of connected systems

We develop graph network technology that reveals hidden connections and creates value from complexity. Our products transform how organisations discover opportunities, optimise resources, and build sustainable systems.

Our family of graph network technology products

GraphKind represents our approach to solving complex matching and optimisation problems through graph network technology. Each product in the GraphKind family uses advanced algorithms to analyse relationships, discover non-obvious connections, and create value from data that traditional systems miss.

GraphKind Products

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Harmonic

"Waste not, want not"

The UK's marketplace for industrial symbiosis, initially focused on waste heat. Harmonic uses graph network technology to connect organisations producing excess heat with those who need heating—from data centres to swimming pools, industrial facilities to greenhouses. Starting with heat, Harmonic will expand to connect other waste streams, creating efficient markets for resources that would otherwise be discarded. Every connection reduces carbon emissions, cuts costs, and supports net zero targets.

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More GraphKind products coming soon...

About Grey Rhino Crash

Grey Rhino Crash Ltd. develops technology that addresses the predictable but neglected challenges facing organisations and society—the "grey rhinos" that are visible but ignored until they become critical. We build platforms that create connections, enable markets, and drive sustainability through intelligent graph network analysis.