01
Orchestrates the work faster
Annwn helps find the data, chase the relevant people, reconcile it, draft the disclosure, and flag where judgement is needed. You just review and refine.
The AI native app for sustainability professionals
Do the job you came to do.
Helping sustainability teams work faster, better, and reach further.
Only 21% of executives believe the business case for sustainability is clear.
The strategic work you want to do keeps getting relegated and you can't reach the whole organisation.
You deserve better tools. So we're building them.
70%
say reporting burden risks not delivering impactful programmes
90%
of CSOs spend more time on compliance
43%
More spending on sustainability reporting than sustainability innovation
70%
say reporting burden risks not delivering impactful programmes
90%
of CSOs spend more time on compliance
43%
More spending on sustainability reporting than sustainability innovation
How Annwn will help you and your business
02
Accesses higher quality insight
Your context (e.g. data requests, board notes, plans and performance reports) is combined with our unique corpus of sustainability insight to produce connections and work you couldn't manually.
03
Brings the business on side
Sustainability propositions translated into the language of CXOs, boards, and investors. Risk quantified, cost estimated, investment justified.
04
Finds the strategic wins
Patterns across datasets that point to cost reduction, risk exposure, or untapped commercial value. Annwn uncovers the real next win.
Annwn is where sustainability teams think, talk,
and tackle the work together.
The specific engagements
Annwn will work with you on.
We'll start by helping you with work you'll know well, completing it quicker and better. But you'll quickly see your data working for you in ways it never has before.
Set Pieces
Doing the jobs you have to do faster and better
- CDP
- UKSRS
- Double materiality assessments
Day to day
Helping with everyday work in sustainability
- Other ratings questionnaires
- Weekly horizon scan
- RFP / SAQ responses
Change makers
Performance related sustainability initiatives.
- Business cases for sustainability investment
- Sustainability risks and opportunities
- Preparation for the Board
Our model radically enhances the value and utility of your data
By combining your data with our model, architecture, agents and curated corpus of sustainability knowledge, you can make the connections that allow you to work better and faster, and uncover new value or risk.
Grounded in evidence
Every output connects back to its evidence; the why and how behind each decision, the sources, and the confidence you should place in them. And if anyone leaves, their knowledge and insight stays.
Fifty years experience of the work.
A team that already built a sustainability consultancy together, scaled products, and everything that goes with that. We're building the platform they wish we'd had.
Ben Murray
CEO
Founded Avieco, grew it to be one of the UK's leading sustainability consultancies, exited to Accenture at 30x EBITDA. 25 years in the profession.
Rory McCabe
CRO
Senior Manager at Accenture, led 40-person sustainability data & analytics division. 15 years in sustainability.
Adam Ball
CPO
Built and scaled carbon accounting platform at Avieco. Led sustainability and AI at Accenture. Product lead at Verna.
Ben Patten
COO
Three startups founded and built, fundraising and growth (The Crowd / Green Monday, Farmdrop, Dizzie).
Join our founding cohort
A development partnership with a select group of sustainability leaders. Early access to the platform, a dedicated subject-matter expert from our team, and a direct line to shape the roadmap.
Request Early AccessJoin our founding cohort
A development partnership with a select group of sustainability leaders. Early access to the platform, a dedicated subject-matter expert from our team, and a direct line to shape the roadmap.
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Frequently asked questions
What is Annwn?
Annwn is an agentic AI operating system for sustainability. It brings a sustainability team's data, relationships, and expertise together in one place — then uses AI agents to coordinate the work, so teams spend less time gathering data and more time on strategy and impact.
What does Annwn do for sustainability teams?
Annwn orchestrates the work end to end: it finds missing data, chases the people who own it, reconciles it against frameworks like CDP and UKSRS, drafts the disclosure, and flags where human judgement is needed. It also codifies methodologies and decisions so institutional knowledge compounds instead of walking out the door, and surfaces strategic patterns — cost reductions, risk exposure, commercial value — across your data.
Who is Annwn for?
Annwn is built for in-house sustainability teams and sustainability consultancies — the people responsible for disclosure, reporting, and turning sustainability data into decisions across the wider business.
How is Annwn different from a carbon accounting platform?
Carbon accounting platforms store a version of the truth aligned to their particular function. Annwn builds and maintains a world model of the enterprise and its sustainability work — capturing how numbers were calculated, which sources were used, what methodology was applied, and who approved what and why — so the context that makes the numbers useful is preserved and reused.
Who is behind Annwn?
Annwn is built by a team that founded and scaled the sustainability consultancy Avieco, growing it into one of the UK's leading sustainability consultancies before exiting to Accenture. Between them the founders bring around fifty years of experience in the profession.
Where sustainability teams think, talk,
and tackle the work together.