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The Classification Guru. Here to clean up your data
We’re experts in data classification, supplier normalisation, taxonomy design, and data cleansing, helping organisations reduce costs, improve data quality, and make better, more informed decisions.
Read Susan's book Between The Spreadsheets
Between the Spreadsheets: Classifying and Fixing Dirty Data
covers everything from data classification, normalisation, and taxonomy design, Between the Spreadsheets shows how the COAT framework helps organisations create consistent, trustworthy data.
Our Services
Data classification and normalisation
Make your data more visible and easier to report. We’ll save you money by classifying or normalising your data so you know where you’re spending too much, and can identify fraudulent activity and incorrect supplier charges.
Taxonomy customisation
Get the Goldilocks of taxonomies with customised categorisations that are neither too generic nor too specific. We’ll give you analytics-friendly taxonomies in terminology that everyone in your organisation understands.
Vendor master cleaning
Clean up your supplier database to remove conflicting and duplicated information. You’ll be able to send payments to the correct account, on the correct terms, and contact them at the right address.
Data cleaning
Comply with GDPR regulations, save time and improve your processes by keeping your customer data up-to-date, accurate and relevant. Our data cleansing service is also perfect for any organisation planning to change CRM system.
The COAT framework
No, we haven’t diversified into outerwear. COAT is our proven framework for creating data you can actually trust. It underpins every data classification and data cleansing project we deliver, ensuring results that last, not quick fixes that unravel over time.
By applying the COAT framework consistently, we make data consistent, organised, accurate, and trustworthy, which is why our approach delivers more reliable outcomes than traditional classification methods. The result is data that supports reporting, analytics, automation, and AI, without rework or surprises later.
Why work with The Classification Guru?
Right first time.
We fully classify your data, including tail spend, with no shortcuts. That means no “unclassified”, “misc”, “other”, or “to be reviewed” categories left for you to fix later. Every data point is classified accurately and consistently, giving you clear, reliable visibility from day one.
That level of accuracy doesn’t come from automation alone. It comes from nearly a decade of hands-on spend data classification, combined with years of real-world corporate experience. We understand how data is actually used, where errors creep in, and what needs to be right the first time to support reporting, savings, and confident decision-making.