GHG reporting as rigorous as financial reporting

We built SusDevOS because most sustainability teams are doing serious compliance work in spreadsheets. That creates risk — for the organisation, for the planet, and for the people responsible for the numbers.

When a company publishes its Scope 1, 2 and 3 emissions — in an annual report, an ESG disclosure, or a TNFD nature report — those numbers carry legal and reputational weight. Investors, regulators, and verifiers increasingly scrutinise them. And yet most of those numbers are produced in Excel workbooks that nobody outside the sustainability team has ever audited.

SusDevOS exists to close that gap. We give sustainability managers a calculation engine that applies the right emission factors automatically, tracks every methodology decision, and generates reports that verifiers can actually verify — without weeks of manual work every year.

We also exist for the teams doing nature-based work: developers, ecologists, and land managers tracking tree removals, habitat restoration, and biodiversity impacts across project sites. The same rigour that GHG Protocol brings to emissions accounting should apply to carbon stock calculations and TNFD disclosures. The IPCC methodology exists. The problem is the tooling to apply it.

We are building that tooling — for the project manager who needs to verify carbon credits against Verra and disclose biodiversity impacts under TNFD, and for the ecologist mapping restoration carbon across 40 land parcels in PostGIS.

Principles we build on

Calculations belong on the server

Every emission figure in SusDevOS is computed server-side from authoritative emission factors. Client-submitted amounts are silently rejected. You cannot accidentally break a formula or paste the wrong value into the wrong cell.

An audit trail is not optional

Every calculation, every factor, every approval and every edit is logged with identity and timestamp. Verifiers and auditors get the full methodology — not a number to take on trust.

Standards-aligned means actually aligned

We implement GHG Protocol, IPCC AR6, and TNFD LEAP at the calculation and data model level — not just in the report title. The methodology is documented, not assumed.

The hard parts should be automatic

Emission factor updates, FX conversion, species taxonomy lookup, Verra/Gold Standard validation — these happen automatically. The project manager's job is decisions and strategy, not data wrangling.

What we've built on

Backend

Django 5.1 · PostgreSQL / PostGIS · Celery / Redis · S3

Frontend

Next.js 14 · TypeScript · Tailwind · TanStack Query

Standards

GHG Protocol · IPCC AR6 · Verra/GS · TNFD · ISO 14064

General enquiries

hello@susdevos.com

Product questions, pricing, or anything else.

Security

security@susdevos.com

Responsible disclosure of vulnerabilities. We aim to respond within 24 hours.

Data & privacy

dpo@susdevos.com

GDPR requests, data export, account deletion, DPA enquiries.

Try it for yourself

Free plan available — no credit card required. Full Scope 1 and 2 calculations from day one. Upgrade when you need it.