Works from the data you have.
Spend exports, utility bills, meter readings and supplier answers all go in as they are, and the footprint meets you at whatever data quality you can offer today.
Honest carbon accounting,
whatever data you start with.
Every number comes with its range and its working, traceable to the row. On founding workspaces and Managed plans, a Hemera carbon accountant looks over it too. Start from the spend, bills or activity data you already have.
app.hemerascope.com / workspace / overview
FY2024 · Apr 2024 to Mar 2025
Total emissions · FY2024
13,688
tCO₂e
tonnes CO₂ equivalent
▼ 8.3% vs FY2395% range 11,200 to 16,800GSD 1.42 · methodology · pinned
Where the tonnes flow
Activities to scopes to hotspots · all 13,688 tCO₂e accounted for
Scope 1Scope 2Scope 3
Carbon budget · SBTi 1.5°COn pace
13.1%
of 2020s decade budget consumed
0%SBTi pace · 10%100%
Projected exhaustion 2034 against a target of 2030. 4-year gap closing through delivered reductions.
Top hotspotsFY2024
Raw materialsS3
4,200tCO₂e
Grid electricityS2
2,106tCO₂e
Outbound logisticsS3
1,890tCO₂e
Other inputsS3
1,980tCO₂e
Reduction trajectory · SBTi 1.5°C
Current pace projects 9,500 tCO₂e by 2030. SBTi-aligned target 8,400.
HistoricalCurrent paceSBTi target
Methodology v4 · hash 3a4f2b89
2,341 records · DEFRA UK GHG 2024 v1.1 · 95% range per row
Open queue
3 todayQ3 declaration ready to file
Tier-1 supplier · PCF received
3 supplier conversations open
Recent activity
View allMethodology v4 sign-off by J. Martin (workspace owner)
A Tier-1 supplier submitted primary data
Analyst pinned a market-based factor
Recalc: top hotspot share 26.4% to 18.3%
A supplier moved Tier 2 to Tier 1
Why HemeraScope
What makes HemeraScope different
A 95% range on every number.
Each headline figure carries a 95% range, computed by Monte Carlo from a published methodology, so you can see how firm the number is.
What to improve next, ranked.
We tell you what to do next. The data you could add is ranked by how much each addition would tighten your range, with what it would take to get it, so an afternoon of effort goes where it changes the answer.
Reduction claims tested against the range.
Before you put a reduction in front of a customer, we test it against the range, and we say plainly when the range cannot show the reduction you are claiming.
Anyone can check our arithmetic.
Every number traces to its activity, its factor and the person who signed it off, and we publish an offline verifier so your customer, your council or your accountant can re-run the file themselves.
A carbon accountant on Managed plans.
On Managed plans a named carbon accountant goes through your workspace, so the judgement calls get a person's attention before you put a number in front of anyone.
Sector estimate
See a first number before you sign up.
Pick your sector and enter annual turnover. We show a provisional screening estimate of your annual carbon footprint, with a 95% range for one business in that sector, from the spread between businesses in the sector and your turnover converted to 2022 prices. It is a starting point, not your real data.
Platform
Everything in one workspace.
The operational side is handled too: multiple sites and entities, and the people who work the data.
Multi-entity rollup
Multiple sites, business units, or legal entities consolidate into a single workspace. Group-level reporting at the top, per-entity data for local filing.
Roles and permissions
Finance, operations, sustainability and procurement all work side by side. Role-based access controls who edits what; an audit log records every change.
Reporting periods that close
A period runs open, then locked for sign-off, then published, with the methodology and factor library pinned at lock. Last year's number stays exactly as it was published.
HemeraScope
Complete carbon accounting, without the barrier to entry.
01Full Scope 3, not a shortcut.
Scope 1, 2 and 3 from your activity and spend, including the categories most tools leave out.
Full Scope 3, not a shortcut.
Scope 1, 2 and 3 from your activity and spend, including the categories most tools leave out.
We classify every transaction, match your suppliers, and calculate emissions against recognised factors. Scope 3 is included in full, not just the two or three categories that are easy to count. It is built on the GHG Protocol Corporate Standard, so your board and your auditor read the same number.
02Numbers you can read.
What is driving the total and what to do next, not just a figure.
Numbers you can read.
What is driving the total and what to do next, not just a figure.
Every figure breaks down into the activity behind it, the factor applied, and what is driving the total. Insight cards surface the hotspots that move the number and the data-quality fixes that would tighten it. You get something to act on, not just a total to report.
03Supplier data, handled.
Primary data from the source, without the chasing.
Supplier data, handled.
Primary data from the source, without the chasing.
Most supplier requests fail because they arrive as a spreadsheet nobody knows how to fill in. We ask in plain terms your suppliers can answer, and on Managed plans our analysts run the follow-up and track each conversation to closure. You get primary data from the source instead of spend-based estimates.
04See how you compare.
Benchmark your footprint against peers, by sector and by category.
See how you compare.
Benchmark your footprint against peers, by sector and by category.
Curated peer cohorts show how your footprint compares with organisations like yours, matched on sector, revenue band and geography. A cohort is never fewer than five organisations, and comparisons are shown as quartiles, not a league table, so no single peer can be picked out. Peer comparisons appear once at least six peers have published.
05Always up to date.
Continuous, not a once-a-year scramble.
Always up to date.
Continuous, not a once-a-year scramble.
Your footprint stays current as activity records come in through the year, so it is ready when a customer, investor or regulator asks, not rebuilt from scratch each spring. Model reduction scenarios against SBTi pathways or any target you have set.
06Auditable to the row.
A full audit trail and quantified uncertainty behind every number.
Auditable to the row.
A full audit trail and quantified uncertainty behind every number.
Quantified uncertainty on every figure, a full audit trail, and a versioned, hash-chained ledger where each number traces to its activity, its factor and the person who approved it. The same records project to GHG Protocol, SECR and CBAM disclosures without re-keying anything. It re-runs to the same number, year after year.
Methodology
How a number gets made.
01Activity
28,500kWh
An activity record, mapped against your taxonomy. The platform works with whatever data you have today, from spend ledgers to operational quantities to primary measurements, and flags where moving one tier up would tighten the result most.
Activity ladder · this row
Spend records (£)
Industry-typical activity
Operational activity
Primary measured
×
02Factor
0.207kgCO₂e / kWh
The platform matches each row to a DEFRA factor, a Defra spend factor for its sector or a factor your supplier has reported. The factor and its version are locked with a hash, so the same row reproduces the same number when re-run in 2027.
Factor ladder · this row
Spend-based intensity (Defra EEIO)
DEFRA category default
Supplier-specific PCF
=
03Emission
5.90tCO₂e
The result and its 95% range (the 2.5th to 97.5th percentiles) come from Monte Carlo simulation. Each input’s spread is built from named terms: the published uncertainty of the factor source, the factor’s age, its geographic match, the spread between candidate factors, the error in the quantity and a structural term for the data tier. Every input, factor, methodology version and timestamp is chained in the Footprint Ledger so any figure can be traced back to its source.
Built onGHG Protocol Corporate & Scope 3ISO 14064 reportingISO 19011 samplingSBTi targetsISSA 5000 / ISAE 3410 structured for your assurer
Collaboration
We work alongside your team.
For your business
The carbon accounting work, done.
On Managed plans we model the footprint, build the methodology, and draft the reports. Your team owns the reductions and the supplier relationships.
For your suppliers
A clean portal for primary data.
Suppliers submit primary data directly. Their data replaces the platform's default factors and makes every figure that depends on them more accurate.
For the network
It compounds over time.
Every supplier that answers once makes the next footprint faster to build and better sourced. Your data stays yours, the shared registry lifts the coverage and quality everyone starts from, so the platform gets stronger the more it is used.
Included in your subscription
More than an annual footprint.
Product carbon footprints
Per-unit footprints, ISO 14067.
Declare the embodied carbon of each product you make across the EN 15804 life-cycle stages, from a bill of materials priced against recognised factors.
Event carbon
A carbon account per event.
Categories, attendee travel and a methodology that names its inputs, with a public page that shows how each figure was worked out.
See it in action
Watch a footprint get built.
The fastest way to judge it
Open a real workspace.
A fully worked example account, seeded with real data, spend classified into scopes, uncertainty on every figure, an audit pack. No signup.
Where we are
A founding cohort.
We are onboarding our first clients now, so we have no customer logos or testimonials to show yet. We would rather earn them than borrow someone else's. If you want to be one of the first, apply for one of the 10 founding places. If you only need a document for a tender, the Procurement-Ready report is a fixed-price alternative.
Step into a live workspace.
No signup required.
ICO registered ZC141869SIG Lite available on request