Carbon Accounting Alliance (CAA)

What Carbon Accounting Alliance (CAA) does

Carbon Accounting Alliance (CAA) is a UK-incorporated not-for-profit collective (Carbon Accounting Alliance Ltd), co-founded in late 2021 by Andrew Griffiths (formerly Director of Policy & Partnerships at Planet Mark) and Emilien Hoet (formerly UK Managing Director at ClimatePartner), with an official public launch on 21 November 2023. The organisation functions as an industry body for the carbon accounting profession, convening software vendors, consultancies, auditors, in-house sustainability managers, standards bodies (GHG Protocol, ISO, SBTi, ISSB), and independent practitioners under Chatham House rule to collaborate on methodology alignment, professionalisation, and policy engagement. Membership has scaled from 35-37 founding organisations to 2,000+ professionals across 65+ countries, with members collectively reporting carbon footprints measured for 200,000+ organisations and >1.1Bn tCO2e.

CAA's core offerings are non-software services: a tiered membership programme (Affiliate free, Individual £120/year, Organisational £300+/year), a Mighty Networks-hosted community platform with eight working groups and an embedded LMS, the ISEP-accredited Technical Associate Certificate in Carbon Accounting delivered in partnership with MyCarbon, the annual Carbon Accounting Conference (inaugural 7 October 2025; second edition 6 October 2026, Senate House London), a member directory, and a jobs board. No proprietary technology products are developed; the value sits in coordination, content (working-group outputs on topics such as FLAG emissions and software interoperability), and the gradual assembly of a professional register (RCAA/CAAR) with ISEP and IEMA.

The business model is sponsorship- and fees-led and non-dilutive. Recurring revenue comes from paid membership tiers (the bulk of members remain on the free Affiliate tier), one-off training cohorts capped at 16 delegates at £2,395-£2,795 + VAT, conference ticket sales across four tiers (£110-£690) with 15% early-bird discounts, and conference sponsorship (Platinum: Xero and Sumday; Gold: Climatiq and Sami; Silver: Sage and 3Keel). Headcount is 21, growth is community-led and event-driven, and the alliance is operationally funded without disclosed institutional investment or acquisition activity.

Name

Carbon Accounting Alliance (CAA)

Legal name

Carbon Accounting Alliance Ltd

Website

https://carbonaccountingalliance.com

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

11–50 employees

Short description

Carbon Accounting Alliance (CAA) is a UK not-for-profit industry body convening 2,000+ carbon accounting professionals across 65+ countries to align methodology, professionalise the field via ISEP-accredited training and the RCAA register, and engage policymakers on climate disclosure standards.

Ownership category

akta.pro rank

Product category

Carbon Accounting Professional Services

NAICS

Business Associations (813910), Professional Organizations (813920)

SIC

Services-Membership Organizations (8600)

akta.pro primary industry

ESG/Sustainability Reporting & Disclosure Platforms (EUABAEAB)

akta.pro secondary industry

Carbon Market & Policy Advisory (Compliance Schemes, ETS Design, Article 6) (EUABADAA)

Keywords

• Carbon accounting training
• Sustainability professional certification
• Emissions reporting community
• Climate accounting conferences
• Carbon standards collaboration

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Marketing or Sales, Operations, Technology or R&D, Others

Revenue model

1. Membership Fees: Tiered membership structure: Affiliate (free), Individual (£120/year), and Organizational (£300+/year). Membership provides access to community platform, resources, discussions, working groups, and events.
2. Training Courses: Technical Associate Certificate in Carbon Accounting - ISEP-accredited 5-day instructor-led training delivered by MyCarbon. Pricing: £2,395 + VAT for CAA members, £2,795 + VAT standard rate. Group discounts available (15% for 3-4 delegates, 20% for 5+).
3. Conference Revenue: Annual Carbon Accounting Conference with tiered ticket pricing: Virtual (£110-£130), Independent/Micro-business (£290-£350), SME (£440-£520), Corporate (£580-£690). Early bird 15% discounts available. Inclusive ticket fund for those who cannot afford attendance.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

Carbon Accounting Alliance is a not-for-profit professional collective that delivers ISEP-accredited carbon accounting training, hosts an annual industry conference, and operates a member-only community platform, member directory, and jobs board. Its offerings support the professionalisation, technical alignment, and policy engagement of carbon accounting practitioners across software, consulting, audit, corporate, standards, and independent segments globally.

Product overview

The Carbon Accounting Alliance (CAA) is a not-for-profit professional collective, not a traditional software product company. Its core offerings consist of five interconnected services: the ISEP-accredited Technical Associate Certificate in Carbon Accounting training course (delivered in partnership with MyCarbon via the community platform's LMS), the annual Carbon Accounting Conference (in-person and virtual), a Member-Only Community Platform (built on Mighty Networks with LMS capabilities), a Member Directory of organisational members, and a Jobs Board for carbon accounting roles. These services collectively support the professionalisation, technical alignment, and community-building of carbon accounting practitioners worldwide.

Differentiator

Problem solved

Functional benefit

Products and services

• Technical Associate Certificate in Carbon Accounting
• Carbon Accounting Conference An annual in-person and virtual conference bringing together carbon accounting professionals, standard-setters, software providers, and corporate sustainability leaders for technical discussions, collaborative sessions, and best-practice advancement. Features interactive formats including roundtables, clinics, multiple tracks, and delegate-led unconference sessions. Ticketed with tiered pricing for virtual, independent/micro-business, SME, and corporate attendees, plus an Inclusive Ticket Fund supported by sponsors.
• Member-Only Community Platform An exclusive online community platform for CAA members providing access to resources, discussions, working groups, and events. Built on Mighty Networks with built-in learning management system (LMS) capabilities, it facilitates networking and collaboration among carbon accounting professionals globally.
• Member Directory A searchable directory of CAA's organisational members, providing visibility into the network of software companies, consultancies, auditors, in-house sustainability managers, standards bodies, and independent professionals that comprise the carbon accounting community.
• Jobs Board A dedicated jobs board hosting live carbon accounting job postings from CAA member organisations, enabling professionals to find career opportunities within the carbon accounting sector.

Quantifiable outcome

• 2,000+ professionals in 65+ countries
• +3 more outcomes

Named customers11 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

13 partnerships are on record, tiered core, minor and major.

• Planet MarkcoreStrategic or Co-development PartnerOne of the two founding organizations of the Carbon Accounting Alliance. Andrew Griffiths (Director of Policy & Partnerships at Planet Mark) co-founded CAA alongside ClimatePartner in November 2023.
• ClimatePartnercoreStrategic or Co-development PartnerOne of the two founding organizations of the Carbon Accounting Alliance. Emilien Hoet (Managing Director at ClimatePartner) co-founded CAA alongside Planet Mark in November 2023.
• Institute of Sustainability and Environmental Professionals (ISEP)coreStrategic or Co-development PartnerISEP is CAA's accreditation partner for the Technical Associate Certificate in Carbon Accounting and the Register of Carbon Accountants and Auditors (RCAA). ISEP developed the competency framework with CAA input. The training course is ISEP-accredited.
• MyCarboncoreImplementation/ SI/ Consulting PartnerTraining delivery partner for the Technical Associate Certificate in Carbon Accounting. MyCarbon's expert team delivers the 5-day instructor-led course built on the ISEP-accredited syllabus. Dr Toby Green, co-founder of MyCarbon, chairs CAA's Professionalisation and Training Working Group.
• Reset ConnectminorGTM or Marketing PartnerPartnership for London Climate Action Week in June 2025. Includes CAA Pavilion with discounted exhibitor rates for members, CAA-hosted workshops and talks, and networking events.
• EMEX ExhibitionminorGTM or Marketing PartnerPartnership for EMEX London exhibition on November 19-20. Creates a CAA Pavilion with exclusive discounted rates for up to 8 CAA Members to exhibit at ExCeL London. EMEX attracts 3,000+ visitors, 100+ exhibitors, and 150+ speakers.
• UK Department for Energy Security and Net Zero (DESNZ)coreOthersCAA engages with UK government to influence climate policy. Recommendations include mandatory Scope 1 & 2 reporting timeline, mandatory landlord-tenant data sharing, green skills education, and nationwide net zero awareness programs.
• XeromajorGTM or Marketing PartnerPlatinum sponsor of 2025 and 2026 Carbon Accounting Conferences. Xero's sponsorship enables the Inclusive Ticket Fund, providing free conference tickets to those who cannot afford attendance. Tamara Somers (GM, Sustainability & Impact at Xero) speaks at conferences.
• SamimajorGTM or Marketing PartnerGold sponsor of the 2026 Carbon Accounting Conference. Sami is a French carbon and ESG data management platform with 1,500+ clients, expanding into the UK market.
• ClimatiqmajorGTM or Marketing PartnerGold sponsor of the 2026 Carbon Accounting Conference. Carbon intelligence platform providing scientifically vetted emissions data. Hessam Lavi (CEO & Co-Founder) is a featured speaker at the conference.
• SumdaymajorGTM or Marketing PartnerPlatinum sponsor of the 2025 Carbon Accounting Conference. Carbon accounting platform co-founded by Jessica Richmond (CEO) and Lindsay Ellis (COO). Sponsorship helped enable inclusive ticket fund.
• SageminorGTM or Marketing PartnerSilver sponsor of the 2025 Carbon Accounting Conference. Duncan Oswald (Climate Science Lead at Sage) participated as a speaker.
• 3KeelminorGTM or Marketing PartnerSilver sponsor of the 2025 Carbon Accounting Conference. Emilien Hoet was previously Strategy Director - LENs at 3Keel before co-founding CAA.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• GHG Protocol: The globally dominant standards setter for corporate GHG accounting (Scopes 1/2/3) where CAA's working groups actively align. GHG Protocol is the upstream authority that determines the technical content CAA members interpret, making it an incumbent peer rather than a collaborator.
• CDP (Carbon Disclosure Project): Global disclosure system used by 18,000+ companies to report environmental data, with a member/funding ecosystem analogous to CAA's. CDP operates a much larger, more established version of the carbon-data convening function CAA is building for carbon accountants.
• WBCSD (World Business Council for Sustainable Development): Global, CEO-led membership organisation of ~200 large companies working on sustainability, with working groups, policy engagement, and member-only resources analogous to CAA. WBCSD targets a different (corporate-only) audience but plays the same convening role at a higher tier.
• SASB Foundation (now part of IFRS / ISSB): Standards-setting body for sustainability accounting and the broader ISSB, with deep engagement with corporate sustainability teams and assurance providers - the same audience CAA serves. Functions as an upstream incumbent rather than a direct competitor, but competes for influence over technical disclosure standards.
• IETA (International Emissions Trading Association): Global business association focused on carbon markets and emissions trading with active working groups and policy engagement. Adjacent (more market-oriented than accounting) but operates the same membership-plus-policy-influence model in the carbon space.

Emerging players

• Green Software Foundation: Member-led non-profit with a working-group-driven model creating open standards (software carbon intensity), analogous to CAA's working groups on FLAG, offsets and software interoperability. Smaller and technically narrower, but structurally similar.
• Net Zero Climate: Membership-based professional community focused on climate/net-zero practitioner education and events, with comparable audience (sustainability managers, consultants). Smaller scope and US-centric, but competes for the same 'convening carbon professionals' niche.
• Climate Action Tracker: Independent scientific body tracking government climate action, with a member/community model and policy-engagement function similar to CAA's DESNZ channel. Smaller and narrower in scope (policy only, no corporate accounting), but operates in the same convening-and-influence niche.

Direct peers

• IEMA (Institute of Environmental Management & Assessment): UK-based chartered professional body for environmental and sustainability practitioners, with a membership model and competency framework very similar to CAA's emerging RCAA register. IEMA's own March 2025 public consultation with CAA on the carbon accountant register makes it a direct co-competitor in the credentialing space.
• ISEP (Institute of Sustainability and Environmental Professionals): UK-based not-for-profit professional body that is CAA's accreditation partner for the RCAA and the Technical Associate Certificate. As both partner and parallel credentialing body in the sustainability profession, ISEP is the closest functional peer.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/carbon-accounting-alliance

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Carbon Accounting Alliance (CAA)