Overstory
Measuring the light

ESG reporting
One report that answers everyone who asks.
The regulator, the bank and the customer want different tables from the same data. We build the data once and write all three.
- A−
- First disclosure score, Aldine Hotels
- 12 weeks
- From kickoff to assured report
Three readers
Built once, read three ways.
Pick who is asking. The data underneath is the same; only the table on top changes.
Who is asking?
The regulator
They ask for
A disclosure in the required format, with every material topic covered and every figure traceable.
We write
The double materiality assessment, the data points mapped to the standard and the assurance file behind each one.
Frameworks
- CSRD
- ESRS
- UK SRS
Twelve weeks
From kickoff to an assured report.
- Weeks 1 to 3MaterialitySixty stakeholders interviewed, topics ranked by impact and by money.
- Weeks 3 to 5Gap analysisWhat you already collect set against what the standard asks for.
- Weeks 5 to 9Data buildOne data model across sites, owners and suppliers.
- Weeks 9 to 12Writing and assuranceThe report written with finance and walked through the verifier.
Three readers
Built once, read three ways.
Pick who is asking. The data underneath is the same; only the table on top changes.
Who is asking?
The regulator
They ask for
A disclosure in the required format, with every material topic covered and every figure traceable.
We write
The double materiality assessment, the data points mapped to the standard and the assurance file behind each one.
Frameworks
- CSRD
- ESRS
- UK SRS
Twelve weeks
From kickoff to an assured report.
- Weeks 1 to 3MaterialitySixty stakeholders interviewed, topics ranked by impact and by money.
- Weeks 3 to 5Gap analysisWhat you already collect set against what the standard asks for.
- Weeks 5 to 9Data buildOne data model across sites, owners and suppliers.
- Weeks 9 to 12Writing and assuranceThe report written with finance and walked through the verifier.
Three readers
Built once, read three ways.
Pick who is asking. The data underneath is the same; only the table on top changes.
Who is asking?
The regulator
They ask for
A disclosure in the required format, with every material topic covered and every figure traceable.
We write
The double materiality assessment, the data points mapped to the standard and the assurance file behind each one.
Frameworks
- CSRD
- ESRS
- UK SRS
Twelve weeks
From kickoff to an assured report.
- Weeks 1 to 3MaterialitySixty stakeholders interviewed, topics ranked by impact and by money.
- Weeks 3 to 5Gap analysisWhat you already collect set against what the standard asks for.
- Weeks 5 to 9Data buildOne data model across sites, owners and suppliers.
- Weeks 9 to 12Writing and assuranceThe report written with finance and walked through the verifier.
In their words
Clients who can show their working.




01 of 05They rebuilt our footprint from the vans up. For the first time the board and the depot managers were looking at the same number.
Other firms gave us a target. Overstory gave us the order to do things in and what each step would cost.
Our first report passed assurance without a single restatement. I did not think that was possible in year one.
They told us not to buy two sites. That advice has already paid for the next ten years of their fees.
The power contract was explained to us in one page. We signed it knowing exactly what we were exposed to.
In their words
Clients who can show their working.




01 of 05They rebuilt our footprint from the vans up. For the first time the board and the depot managers were looking at the same number.
Other firms gave us a target. Overstory gave us the order to do things in and what each step would cost.
Our first report passed assurance without a single restatement. I did not think that was possible in year one.
They told us not to buy two sites. That advice has already paid for the next ten years of their fees.
The power contract was explained to us in one page. We signed it knowing exactly what we were exposed to.
In their words
Clients who can show their working.




01 of 05They rebuilt our footprint from the vans up. For the first time the board and the depot managers were looking at the same number.
Other firms gave us a target. Overstory gave us the order to do things in and what each step would cost.
Our first report passed assurance without a single restatement. I did not think that was possible in year one.
They told us not to buy two sites. That advice has already paid for the next ten years of their fees.
The power contract was explained to us in one page. We signed it knowing exactly what we were exposed to.

Start here
Book a baseline call.
Thirty minutes with a consultant. You leave with a rough footprint, the two biggest cuts and what a full pathway would cost.
Your call: Pick a size and a service
No cost, no deck. Replies inside one working day.

Start here
Book a baseline call.
Thirty minutes with a consultant. You leave with a rough footprint, the two biggest cuts and what a full pathway would cost.
Your call: Pick a size and a service
No cost, no deck. Replies inside one working day.

Start here
Book a baseline call.
Thirty minutes with a consultant. You leave with a rough footprint, the two biggest cuts and what a full pathway would cost.
Your call: Pick a size and a service
No cost, no deck. Replies inside one working day.