
Tellum is a systems integrator
for fit-out contractors.
Business systems — not another project tool.
Your projects, packages, client changes and cash live in different places — and someone has to stitch them together every week.
We join what you already run into one live picture.
Nothing gets replaced.
- Procore
- Sage
- Excel tracker
- Email & WhatsApp
- +156 systems →
- Projects — margin live
- Packages — bought against allowed
- Cash — month-end builds itself
- Procore
- Sage
- Excel tracker
- Email & WhatsApp
- +156 systems →
- Projects — margin live
- Packages — bought against allowed
- Cash — month-end builds itself
The systems your fit-out business already runs on.
If it's on this list, we've connected it before. If it isn't, we probably still have — .
You're not unusual. This is what running a contractor at this stage looks like.
“Same project, three systems, three different numbers. I spend Friday afternoons working out which one is right.”
That's plumbing, not people. We fix the plumbing.
“The client changed the spec forty times. We priced eleven of them.”
A change you delivered but never priced is a gift. We log every instruction the day it lands and show what's still unpriced.
“Month-end takes the FD a week and one spreadsheet nobody else understands.”
Month-end shouldn't be a build project. It should already be there.
Wherever you are with your systems, there's a version of this for you.
You're picking or replacing something.
We help you choose the tools that fit how you actually work — not the ones the salesman liked. Shortlist, trial, decision. Then we set them up properly.
You already have the tools. They don't talk, or they don't do enough.
We customise, connect and extend what you run: integrations, missing reports, automations, the layer on top. Then we keep it working and growing with you.
You have the systems. People use half of them.
We teach your team to run the tools you already pay for — properly, and with the automations that make them worth the money.
Most clients start in the middle. Some start with training and never need the rest.
Tools get you level. The layer gets you ahead.
Choosing, connecting and training put the right tools in place — the same tools your competitor can buy. The Tellum Operating Layer is ours: it sits on top of what you run and bends to how you work. A new metric lands in days, a new workflow in a week or two. Nothing gets replaced.
One live picture. Three things on it.
Every project, cost-to-date against budget, prelims burn against programme, and the change register — instructed, priced, agreed — updated as it moves. On programmes this short, month-end is too late.
Nothing gets replaced. Your ERP stays your ERP. We add the layer on top.
Small first step. No migration. Nobody retrains.
We sign an NDA, then walk you through what we'd connect and how. A demo, not a sales call.
We pick the right technical approach and build a working prototype on your numbers — free, typically within 48 hours. Static data at this stage; the live connection comes with the build. You decide if it's worth going further.
Implementation, customisation, the connecting layer, training — the actual engagement begins. Your systems stay where they are; your team keeps working the way it works.
Before and after
Examples of what we can help you with — real engagements, anonymised, names and some details changed.
6 of 6 engagements
About to buy an ERP they'd have spent a year fighting.
Sage 50, a dozen spreadsheets and a WhatsApp group.
One project tracker across live jobs, Sage kept for the books, procurement and changes in one place — live in six weeks.
Project controls lived in an eight-tab workbook next to the ERP.
NetSuite for finance, Excel for procurement, cost-to-complete, prelims and the change register.
One portal on top of NetSuite — cost-to-complete and prelims burn per project, changes captured the day they're instructed, finance stays in NetSuite.
Forty sites a year for the same clients — and no two reported the same way.
Each roll-out programme tracked in its own workbook, margins known site by site, months later.
One layer: margin per site and per programme, cost against the client's budget template, programme compliance across every live store.
Nobody could see surveys turning into quotes and quotes turning into work.
Money in QuickBooks, pipeline in HubSpot, the works schedule in a spreadsheet.
One weekly picture: repeat-client pipeline, quote conversion, team utilisation, cash by client.
Practical completion kept slipping on snags nobody could count.
Snags in one tool, O&M documents in folders, the handover date managed by optimism.
One board: snags raised and closed by package, O&M readiness, handover risk per project — with safety and workforce reporting alongside.
Three acquisitions, three ways of running a project, entities that didn't line up.
Consolidating P&L by studio and division took most of the month.
A consolidation layer on Intacct — common project structure, month-end across all entities in days.
Want to see the layer itself? Same numbers, three front-ends — inside NetSuite, as a modern portal, as Power Apps.

You're probably here the way most of our clients arrive — a colleague passed our name on, or you got a note from me. Either way, good to meet you. If the page doesn't answer your question, ask me directly — I read every reply myself.
Questions we get asked
The stack we see most often in fit-out: Procore, Asta Powerproject, Bluebeam, Payapps, PlanRadar, Sage — plus Excel, Microsoft 365 and WhatsApp. In total we work with around 160 systems across 21 categories, listed at tellum.works/vendors. If a system has an API, a database or an export, it can be connected.
Pick your first step.
From a free PDF to a working prototype on your own numbers in 48 hours. Pick one — the form below adjusts.