Start self-serve, upgrade when you need analyst support, partner with us if you're a consultancy. One platform. Four ways to work with it.
Free during pilot. We are onboarding a founding cohort of organisations who get the full product, analyst support included, free while HemeraScope is in pilot. The prices below are what applies once the pilot ends. Founding members get notice first.
For organisations getting started with carbon accounting.
Analyst-led carbon accounting and reporting, end-to-end.
Multi-entity groups with EU + UK CBAM and complex consolidation needs.
Our Procurement-Ready report is a one-off, fixed-price Carbon Reduction Plan and footprint, shaped to PPN 006 and analyst-reviewed. No subscription. The first 15 are free for a founding cohort.
If you advise clients on carbon, you don't need analyst hours from us. You need our engine, our data, and the ability to run multiple client workspaces from one account.
A different offering, for consultancies running carbon advisory for their own clients.
Annual terms negotiated. Discounts available for bulk client volumes.
Detailed comparison of features, capacity, and support across all four plans.
| Plans | Starter £149/mo | ManagedPopular £549/mo | Enterprise From £999 | Engine £199/mo base |
|---|---|---|---|---|
Pricing | ||||
Monthly | £149 | £549 | From £999 | £199 base |
Annual | £1,490 | £5,490 | Custom | Negotiated |
Per client / month Engine adds a per-client fee on top of the base. | — | — | — | £99 to £149 |
Capacity | ||||
Users included | 5 + £6/seat | Up to 50 | Unlimited | Unlimited (internal) |
Workspaces | Single | Single | Multi-entity (parent → child) | Multi-client (white-label) |
Analyst support | Self-serve | Assigned carbon accountant | Priority analyst pool | Bring-your-own-analyst |
Compliance frameworks | ||||
UK SECR + GHG Protocol | ||||
PPN 006 Carbon Reduction Plan | — | Per client workspace | ||
CSRD ESRS E1 projection (Markdown + PDF) | — | Per client workspace | ||
EU + UK CBAM (per-product rollup, quarterly declaration) | — | — | — | |
Accountant-signed methodology report | — | — | ||
Audit-grade verifier handoff pack | — | Per client workspace | ||
Platform features | ||||
DEFRA factor library (versioned) | ||||
Annual report refresh (footprint + Carbon Reduction Plan) Starter includes a yearly refresh of your footprint and plan. | Per client workspace | |||
Footprint Ledger (hash-chained audit) | ||||
Supplier engagement loop + primary-data trajectory KPI | — | Per client workspace | ||
AI utility-bill extraction (admin-triggered) | — | Per client workspace | ||
Custom factor library extensions | — | — | — | |
Dedicated onboarding wizard | — | — | — | |
Support & access | ||||
Support | Email + in-app | Priority + quarterly calls | Named AM + custom SLAs | |
Quarterly review calls | — | — | ||
Software development priority | — | — | ||
Add-ons available | ||||
Available add-ons | Report top-ups · 45-min expert call (£50) | Additional analyst hours · extra reports | Bespoke consulting engagements | Additional client blocks |
| Get started | Talk to us | Contact sales | Become a partner | |
Most organisations begin on Starter: DEFRA factor library, CSV upload, an auto-generated SECR + GHG Protocol report, and full Footprint Ledger access. If you need an accountant-signed report, supplier engagement, AI utility-bill extraction, or CSRD ESRS E1 / PPN 006 outputs, Managed is the right starting point. Enterprise adds multi-entity consolidation and EU + UK CBAM.
On Managed and Enterprise, a carbon accountant owns your engagement end-to-end: boundary decisions, supplier engagement, data validation, methodology calls, and final sign-off on the report. Enterprise customers get a priority analyst pool and a named account manager on top.
On Managed, we do the analysis for you. On Engine, you (a consultancy) get the platform and benchmarking dataset to do the analysis for your own clients. Engine clients get software-development priority: the platform evolves with their feedback.
Every methodology report is reviewed and signed off by a carbon accountant on the Hemera team. The sign-off attests the method is consistent with recognised standards (GHG Protocol, ISO 14064 and 14067) and the relevant regulatory regime.
Yes, upgrade at any time and we'll prorate the difference. Downgrades take effect at the next billing period. Annual plans can be cancelled at renewal.
Every figure on every report traces back to a versioned emission factor, a hash-chained audit event, and the calculation rule that produced it. The ledger is exportable as CSV or JSON, and the audit pack includes a stdlib-only Python verifier that anyone, your auditor included, can run offline.
We offer a live demo workspace at /demo and a 30-day money-back period on Starter. Managed and Enterprise include a paid onboarding period before the annual term begins.
All data is hosted in the EU on GDPR-compliant infrastructure. We never use your data to train models or share it with third parties. Full details in our DPA and privacy policy.
Book a 15-minute call. We'll walk through your reporting needs and help you pick the right starting point. No pitch deck, no pressure.