We transform raw, messy IT cost data into a clean, structured, decision-ready TBM model — aligned to industry-standard ATUM taxonomy. Give your CFO and CIO the financial clarity they need to make smarter technology investments.
Technology Business Management (TBM) is a globally recognised framework that helps organisations understand the cost, quality, and value of the technology services they consume and deliver.
TBM bridges the gap between IT and Finance by providing a common vocabulary, standard cost taxonomy, and structured allocation model — so every stakeholder can have an informed, evidence-based conversation about IT spend.
TBM is governed by the TBM Council and codified in the Apptio Unified Taxonomy Model (ATUM) — the global standard for IT cost transparency adopted by thousands of enterprises worldwide.
TBM Cost Model — Simplified
Without proper TBM data curation, even the best tools give you noisy, untrustworthy data. Here's what we see — and how we fix it.
Our TBM practice is built around three core service pillars — each one designed to give your organisation a deeper level of financial control over your technology investment.
We take your raw General Ledger, CMDB, contract, and HR data and map it precisely to the ATUM taxonomy. Every cost gets a home. Every IT tower gets fully populated. No more unallocated buckets.
We build the allocation rules, drivers, and models that flow your IT costs all the way from infrastructure to the business units, departments, or products that actually consume them.
Cloud spend is the fastest-growing — and least controlled — part of most IT budgets. We bring FinOps discipline to your AWS, Azure, and GCP environments with TBM-aligned cost governance.
Certified Apptio expertise — from greenfield implementations to rescuing struggling existing deployments. We make Apptio work for your organisation.
Executive-ready dashboards and operational reports that tell the story of your IT investment — from board-level summaries to drill-down operational views.
We don't just build your TBM model — we make sure your team can own and operate it. Structured training programmes for IT Finance teams.
A structured, repeatable process that takes your organisation from data chaos to full cost transparency — in as little as 90 days.
We audit all your data sources — GL, CMDB, HR, contracts, cloud billing — and document what exists, what's missing, and what quality issues need resolving before modelling begins.
Raw data is rarely model-ready. We cleanse duplicates, resolve inconsistencies, normalise naming conventions, and validate completeness before a single allocation rule is written.
Every GL account, cost centre, vendor, and asset is mapped to the appropriate ATUM taxonomy node — IT Tower, Sub-Tower, and Cost Pool — with full audit trail documentation.
We design and implement the allocation rules that flow costs from IT towers through to applications and business services — with defensible, documented cost drivers at every layer.
We run parallel validation, reconcile back to source financials, and facilitate sign-off workshops with IT Finance, IT leadership, and business unit stakeholders.
Automated monthly refresh pipelines, executive dashboards, operational reports, and full documentation — so your team can run the model independently after handover.
General Ledger extract · Cost centre list · CMDB / asset register · Active vendor contracts · Org chart & FTE data · Cloud billing exports (AWS / Azure / GCP)
All financial data is handled under strict NDA and data processing agreements. We are GDPR compliant and can work within your existing data governance framework.
Deep expertise across the leading TBM, FinOps, and BI platforms. We integrate with your existing ecosystem — no rip and replace.
These are real outcomes from Appzster TBM engagements — not vendor marketing claims.
A leading UK-based financial services organisation was spending over £180M annually on IT with 45% of costs unallocated at year end. Their Apptio instance had been live for 18 months but the model was broken, untrusted, and unused. Appzster was engaged to perform a full model rebuild — remapping 6,200 GL accounts, redesigning 340 allocation rules, and implementing automated monthly data pipelines integrated with their SAP instance. The result was a fully trusted, board-approved TBM model delivered in 11 weeks.
Our TBM services are designed for specific stakeholders within enterprise organisations who need better visibility and control over technology costs.
Needs full visibility of IT spend to make budget decisions and challenge the IT cost base with confidence.
Needs to justify IT investments to the board and demonstrate the business value of technology spend.
Owns the TBM model day-to-day. Needs it to be accurate, automated, and explainable to non-technical stakeholders.
Needs cloud costs tagged, allocated, and visible within the wider TBM model alongside on-premise costs.
"Appzster rebuilt our entire Apptio model in 11 weeks. What our previous partner spent 18 months failing to deliver, Appzster fixed in under 3 months. The model is now trusted by our CFO."
"We had £40M of IT costs sitting unallocated at year-end. After Appzster's taxonomy mapping work, that figure dropped to under £2M within the first reporting cycle. Game changing."
"The FinOps work Appzster did on our AWS estate identified £1.2M in annual savings we had no visibility of. Their cloud cost governance framework is now standard across our entire group."
Book a free 45-minute TBM consultation with one of our senior consultants. We'll review your current data situation, assess your TBM maturity, and give you a clear roadmap to cost transparency — no commitment required.