Case Study: Zenith Hygiene Group achieves 99.93% OTIF and cuts inventory by 5 days with RELEX Solutions

Zenith and the Art of Inventory Management

Zenith Hygiene Group, the UK’s largest independent manufacturer and supplier of cleaning and hygienic products, was growing rapidly (turnover up >50% in four years) but still relied on pencil, paper and spreadsheets for replenishment. That led to poor forecasting (especially seasonal swings), frequent stock‑outs, wasted warehouse space for bulky items and an inability to scale operations while meeting its next‑day On‑Time‑In‑Full commitment.

Zenith implemented RELEX—cleansing historic data, integrating with its accounting system and automating replenishment while treating bulky, high‑volume SKUs with a just‑in‑time model. The result was far greater visibility and control, a 99.93% OTIF regularity on core items, a 90% reduction in stock‑outs, inventory reduced from 49 to 44 days, and a much smaller replenishment workload so the team can focus on customer and supplier relationships.

Zenith Hygiene Group

Simon Bower

COO