Terrascope
Singapore-built carbon measurement platform working to the GHG Protocol, including the Land Sector Guidance.
Why we listed themListed as the APAC software option.
View profile →Carbon software
Platforms and tools for collecting activity data, calculating emissions and producing disclosures — listed as software, not as consultancy.
Curated · chosen by us, not paid for
One Click LCA
Life-cycle assessment and EPD software covering buildings, infrastructure and manufactured products.
Why we listed themListed as software rather than consultancy.
View profile →Preoptima
Software for whole-life carbon assessment of buildings at concept stage.
Why we listed themListed as software, not consultancy.
View profile →These listings rotate daily, so nobody holds the top spot. Paying would add a listing to a separate sponsored section above this one — it never buys a position inside the curated list, and it never changes who appears in it.
Before you appoint one
- Does an export carry the factor, its source and its version — or only a total?
- Can a number be reproduced a year from now, after the factor set has moved?
- Is the calculation method documented, or described as proprietary?
We do not verify these answers for you — we check that a provider states them publicly before we list it. The rest is yours to ask.
Or tell us the job
Want a shortlist instead?
If you’d rather not read every profile: say what needs doing and where you are, and we send back the two or three names here that fit. Answers come from the curated list only — a paid listing never buys a place in an answer.
Forwarded to jeremiah@greencalculus.com and discarded — no list, no marketing. Shortlists are pointers, not endorsements: the same checks in “how we chose them” apply, and the appointment is yours to make.
Other categories
Assurance & verificationCarbon accounting & inventoryEmbodied carbon & LCAFinanced emissionsRegulatory reporting
For providers
Do this work? A listing puts you at the top of this page, with your logo, a named contact and an enquiry form that reaches them — US$390 a year.
How listings work →Listings are selected by us and are not recommendations, endorsements or an assurance of quality. We do not verify providers’ claims. Nothing here influences our emission factors, methodology or calculator results.