Carbon accounting for growing companies
Your emissions, layer by layer, traced to the source.
Terralith turns spend, cloud bills and supplier data into an audit-ready inventory across all three scopes, and shows exactly which figures are measured and which are estimated.
Plate I. Fernhill Analytics, FY2025 inventory by scope
tCO₂e · location-based
- Fuel and fleet96 t
- Electricity310 t
- Commuting240 t
- Business travel610 t
- Cloud and hosting1,140 t
- Purchased goods and services2,416 t
One inventory, reported to
- GHG Protocol
- CSRD · ESRS E1
- SECR
- CDP
- SBTi
- ISSB S2
Used by 140 companies
Data coverage
Know which numbers are measured.
Every source shows, month by month, whether its figures come from real activity data or an estimate. Gaps are visible before the auditor finds them.
Reporting model
One ledger, every framework.
Activity data meets a versioned emission factor and lands in a single carbon ledger. Each disclosure is a view of that ledger, so CSRD, SECR and CDP always agree with each other.
01 · Sources
- Ledger and ERP
- Cloud billing
- Travel and expenses
- Meters and fuel
- Supplier portal
02 · Activity data
- £ spend by category
- kWh and litres
- Passenger-km
- Compute hours
03 · Factors
- DEFRA 2025 v1.1
- Supplier-specific
- Cloud region intensity
04 · Ledger
- 4,812 t, every line traceable
05 · Disclosures
- CSRD · ESRS E1Gross Scopes 1, 2, 3 and intensity
- SECRDirectors’ report, UK energy use
- CDPClimate questionnaire, C6 and C7
- SBTiNear-term target tracking
Factor versions locked per period
Restate a prior year in one click when DEFRA updates.
Line-level audit trail
From a disclosed tonne back to the invoice that created it.
Limited assurance ready
Evidence packs formatted for your assurance provider.
Pathway to 2030
SBTi 1.5°C · −50% vs 2023Planned reductions
- Supplier-specific data, top 14−520 t
- Cloud region and rightsizing−380 t
- Travel policy, rail under 5 hours−260 t
- Renewable tariff, all sites−240 t
Reduction
A target with a plan under it.
Set a science-aligned target, then attach the initiatives that will get you there. Terralith tracks each one against the ledger, so the board sees progress in tonnes.
Why Terralith
Numbers that hold up when the auditor asks.
- IMeasured, then estimatedReal activity data first. Estimates fill gaps and stay labelled until replaced.
- IIFinance-grade controlsPeriod locks, approvals and a full audit trail, run like the general ledger.
- IIIEvery framework from one inventoryCSRD, SECR, CDP and SBTi read from the same numbers.
- IVA specialist alongside the softwareA named carbon accountant reviews your first inventory with you.
Four core samples
The same inventory, drilled from where each team stands.
Sustainability leads
Run the inventory, chase supplier data and publish the report from one place.
Annual inventory
Finance and the CFO
Carbon numbers with the same controls and close calendar as the accounts.
Board pack
Procurement
See which suppliers carry the most emissions and request their data in bulk.
Supplier scorecard
Investor relations
Answer due diligence and lender questionnaires with numbers that tie out.
ESG data room
Illustrative outcome · Fernhill
Scope 3 from real data rose from 12% to 61%.
- Measured
- Estimated
Our auditors asked where one supplier figure came from. We clicked through to the invoice in front of them, and the review moved on.
Your first inventory, in six weeks.
Connect your ledger and cloud bills, and a Terralith carbon accountant works through Scopes 1 to 3 with you, ready for your first disclosure.