Case studies
MES

Olde Thompson Improves Forecasting and Inventory with Plex MES

Case study showing how Olde Thompson replaced legacy ERP with Plex to enable demand forecasting, reduce inventory by $10M, and reach 99% on-time in-full delivery.

Published
June 4, 2026
Read time
3 min read
Source

Olde Thompson, the largest U.S. private-label spice supplier, implemented Plex cloud MES and DemandCaster supply chain planning after its customized UNIX ERP could no longer support growth. The system delivered real-time shop-floor visibility, accurate lead-time tracking, and scenario-based forecasting. Within 18 months the company cut inventory 35%, freed $10M in working capital, and raised service levels to 99% while onboarding 65 EDI trading partners.

Key takeaways

Replaced aging customized ERP with cloud MES and supply chain planning in 13 months

Implemented DemandCaster forecasting in 60 days, enabling safety stock and manual overrides

Reduced inventory $10M and achieved 35% reduction within 18 months of go-live

Attained 99% on-time in-full delivery rates through improved MRP and supplier visibility

Gained real-time traceability and compliance support for organic and allergen-controlled products

Market overview

SCR methodology note

Vendor landscape

Leaders

Implementation considerations

Important consideration