Decision Models
Excel and Access consultancy building custom spreadsheet models, VBA solutions and decision-support tools for businesses
Highlights
- New on EvolcAdded 2026-11-06
About Decision Models
Decision Models is a UK consultancy that designs and builds custom Microsoft Excel and Access models, VBA solutions and database front-ends. It also publishes its own software tools for Excel users, including FastExcel, which is used to speed up, maintain and clean up spreadsheets, and Formula Explorer, with version 6 in beta in January 2026.
Clients include international blue-chip companies, and recent projects have been in information technology, telecommunications and logistics. Services cover spreadsheet redesign for calculation speed and maintainability, decision support and business case models, forecasting, market sizing, pricing support and Excel-based database solutions. The company earns revenue from consultancy and development work and from sales of its tools.
Decision Models was founded in 1996 by Charles Williams, who previously worked for IBM in software development, forecasting and product management. The company is registered in the United Kingdom as a limited company.
Product: Custom Excel and Access models and VBA solutions, plus FastExcel and Formula Explorer tools for Excel users.
Jobs at Decision Models
Leadership
- Charles Williams · FounderSource: company website
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