Sources
Excel workbooks, SQL Server, and systems already in the business. We connect. We do not replace the working systems. We can replace Excel capture.
Management reporting software for operators and group functions
One signed-off model of the business. Built with you and kept by you.
Capstone is that model: the systems, the Excel workbooks, and the rules that turn them into the figures your board sees. Every number is validated where it is captured, and locked once it has been reported.
On the platform today: Anglo American, African Rainbow Minerals, Valterra Platinum, De Beers, Tharisa.
Are your numbers still assembled by hand?
The group figure is copied from systems into a combined worksheet. Nobody can say where it came from, who signed it off, or what changed since the board saw it. Some of the values, like a safety rate or tCO2eq, do not live in any one system. The month closes late, and the audit takes longer.
Demo data.
How Capstone works
Four steps, in order.
- 01
Connect
The plant system stays, the safety system stays, the Excel workbooks stay. Capstone reads all of them, so nobody is copying between them.
- 02
Validate
The person closest to the data signs it off at capture. Data is locked when the reporting period closes. Change requests are tracked and approved. Capstone governs your data quality.
- 03
Calculate
Site figures roll up, then the formulas calculate at each level of the organisation. A ratio is computed from the totals. It is never an average of site ratios.
- 04
Report
Board reports, monthly reports, and dashboards read the same locked figures. Power BI can still draw the chart. They agree because they come from one model.
Connects to Excel workbooks, APIs, SQL Server, and financial systems like Xero and Sage.
A number you can take to an auditor
Every number can answer three questions. That is what an audit is actually asking for.
- Where it came from. The source system, the workbook, the reading. Traced back from the figure on the page.
- Who signed it off. The person who validated it at capture, and when. Periods lock once reported.
- What changed since. Every change request against a locked figure, with its reason, on the record.
Ask the model a question
You can ask the model questions in plain language, and the answers come from the model itself. The same validated figures and formulas that produce your reports, not an AI's general impression of your business.
How much of our March withdrawal came from water-stressed areas?
800 of the 1,095 ML withdrawn in March (73%) came from Sites A and B, which draw from water-stressed catchments. The split is ready for GRI 303-3 and comes from the signed-off site figures.
Why is Site B higher than last March?
Site B withdrew 388 ML compared to 341 ML last year, which is an increase of 14%. The March figure is signed off and locked, and one restatement is open against it. There is a change request (142), awaiting approval.
Enterprise fit
Security and hosting
Your private tenant hosted by us, on Azure, or hosted by you. Row-level access and roles. POPIA applies and we put it in the privacy agreement. Lineage, locks, and change requests stay on the record.
Implementation
You bring the report, source access, and someone who knows the process. We build the group model first, then onboard the sites one by one, about two weeks each. We work until the numbers are correct. Then it is yours to run.
Two ways to buy Capstone
With a team
We build the model with you and stay until the reporting comes out of it. Then it is yours to run.
Licence only
You have the people and you want the product. Build the model yourself. Call us when you want a hand.
Seats are priced by role: view, capture, admin. Implementation is scoped per engagement. We will walk you through both on the call.
In production at
Capstone runs group reporting at these companies today. Most are mining groups. The problem of scattered numbers that have to survive an audit is the same in any industry.
Starting with sustainability? Get ESG out of Excel.
Anglo American
Since 2022
2 months → 2 weeks
Group sustainability reporting closes in two weeks instead of two months.
Capstone validates 3,500 inputs and runs 1,650 calculations, each signed off at source.
“They have been professional and technically strong on the SHE and sustainability system, and the support stays reliable.”
African Rainbow Minerals
8 mines, 1 model
8 mines → 1 model
Eight mines report ESG into a single model.
The 1,153 data points that used to live in spreadsheets are now captured and validated in Capstone.
“We are very satisfied with NxGN. They have the development, data and technical skills to complete the work.”
Tharisa, De Beers, Valterra Platinum
Also in production
Group reporting
Still on the model.
Each runs its group reporting on Capstone today. The case studies show the models.
Frequently Asked Questions
Do we have to replace our systems?
No. Your systems keep doing their job. Capstone reads from them and from the workbooks next to them.
Is this another dashboard?
No. Capstone is not a dashboard. It is the signed-off model your reports and BI tools should be reading from. You can keep the BI tools you already have.
How long before we see something?
The first report is on the model before the full rollout finishes. We start with the report that takes a week and build the group model for it, then onboard the sites one by one, about two weeks each. A three-entity group was in production in nine weeks and closed out in about three months. A group with 160+ operations is a phased programme of six months to a year.
What is Capstone?
One model of the business: the systems, the workbooks, and the rules that turn them into reported figures. Licence and support. The page above is the product.
What does it connect to?
The systems you already run, and the Excel workbooks next to them. We integrate with plant systems, SQL Server, APIs, and financial systems like Xero and Sage.
Where does our data live?
In your private tenant, hosted on our Azure environment, or hosted by you. POPIA applies and we put it in the privacy agreement.
What do we keep if we cancel?
The licence lapses. We export all your data to your data warehouse environment. The model definition is documented and shared with you.
The first report is the conversation.
Twenty minutes. You bring the report that still takes a week. We show what the Capstone model of it would look like.
Straight into the calendar. No form, no follow-up sequence.