Tellum is a systems integrator
for specialist contractors.
Business systems — not the tools of your trade.
Your jobs, service, costs 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.
- Joblogic
- Sage
- Excel tracker
- Email & WhatsApp
- +156 systems →
- Jobs — margin live
- Service — profit per contract
- Cash — month-end builds itself
- Joblogic
- Sage
- Excel tracker
- Email & WhatsApp
- +156 systems →
- Jobs — margin live
- Service — profit per contract
- Cash — month-end builds itself
The systems your business already runs on.
If your trade has a specialist tool, we've probably connected it — 160 systems across 21 categories. See the full list →
You're not unusual. This is what running a contractor at this stage looks like.
“Same job, three systems, three different numbers. I spend Friday afternoons working out which one is right.”
That's plumbing, not people. We fix the plumbing.
“I hear about the overrun after the job's closed. By then it's a lesson, not a decision.”
An overrun you see after the job closed isn't managed — it's archived. We show it while it's still live.
“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 job, cost-to-date against budget — labour, materials, plant — updated as costs land, with variations where you can see them. The MD opens one screen on Monday morning and knows.
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.
Re-flow for the field, Sage kept for the books, one contract tracker — live in six weeks.
Metres drilled and money spent lived in different worlds.
NetSuite for finance, Excel for rig output, cost-to-complete and day-works.
One portal on top of NetSuite — metres per rig against plan, cost per metre live, day-works captured the day they happen.
Three sources, three answers to "how did the contracts do?".
Rounds in the field system, money in Intacct, a five-day month-end in Excel.
One reporting layer: rounds delivered against contracted, contract profitability, crew utilisation — nightly.
Nobody could see surveys turning into quotes and quotes turning into work.
Money in QuickBooks, pipeline in HubSpot, the fitting schedule in a spreadsheet.
One weekly picture: quote conversion, fitters booked against capacity, cash by client.
Warranty claims arrived years later; the job file was three phones ago.
Photos across phones, materials from memory, sign-offs on paper.
One record per roof: photos, materials and sign-offs attached as the work happens — with weather losses, safety and workforce reporting alongside.
Three acquisitions, three trades, three ways of running a job.
Consolidating P&L by company and division took most of the month.
A consolidation layer on Intacct — common job structure across the trades, month-end 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 specialist trade: Joblogic, SimPRO, BigChange, Commusoft, Re-flow, Procore — 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.