CDP Disclosure 2026
Environmental disclosure enables organizations to uncover data and insights that offer immediate value, while building long-term resilience.
Last year, over 23,100 organizations responded to the continued market demand for disclosure data. This year, we are laser-focused on simplifying the disclosure process with better guidance and other improvements.
The response window is now open for the 2026 cycle.
Disclose nowExplore questionnaires, guidance and scoring methodologies
Key dates 2026
Disclose now
Log into the CDP Portal to disclose for the 2026 disclosure cycle. You can also export our questionnaires, guidance and scoring methodologies into a simple PDF format based on your sector and the themes you're disclosing on. Additional disclosure and scoring materials are available alongside step-by-step instructions to disclose.
Disclose nowExplore questionnaires, guidance and scoring methodologies
Need to register to disclose? Get access to the CDP Portal if you're a new user or wish to disclose voluntarily. Learn more below

Disclose as a company
Over 22,000 companies disclosed through CDP in 2025 – including over 4,400 companies doing so for the first time.
Some of the world’s largest and most impactful companies disclose through CDP. These companies represent nearly two thirds of global market capitalization, 97% of the Nikkei 225, 83% of the IBOVESPA, 75% of the S&P 500, and 78% of the STOXX Europe 600.
Disclose nowExplore questionnaires, guidance and scoring methodologies
How are organizations using CDP data?
Disclosure Dividend 2026
Demonstrating the business value of environmental action, the second annual Disclosure Dividend report – based on 2025 CDP disclosure data for over 11,260 large and mid-sized companies – comes at a time of serious market volatility.

Disclose as a Small or Medium-Sized Enterprise (SME)
In its second year, CDP’s dedicated SME questionnaire saw nearly 11,000 companies disclose through it, supporting and empowering smaller businesses to measure their environmental impacts.
Explore questionnaires, guidance and scoring methodologies

Disclose as a city, state or region
Over 1,000 cities, states and regions disclosed through CDP last year. For local governments, building resilience through disclosure surfaces benefits such as improved food security, increased social inclusion, and job creation en route to tackling wider societal issues.
Disclose nowExplore questionnaires, guidance and scoring methodologies

Founded in 2000, CDP runs the world’s only independent environmental disclosure system.
With unparalleled depth and breadth across regions, sectors and environmental issues, we are repeatedly ranked as a market leader for quality and usefulness by sustainability professionals (Source: ERM Sustainability Institute).
Disclosure through CDP provides a window of opportunity for companies, cities, states, and regions to demonstrate their environmental progress over the past year.

Letter to the Board
CDP’s ‘Letter to the Board’ is sent to a company’s senior stakeholders, annually. It is a formal invitation to disclose environmental information on behalf of their investors via CDP’s corporate questionnaire.
In 2026, CDP’s Capital Markets Signatories – over 540 financial institutions with US$110+ trillion in assets – are requesting over 43,000 organizations to disclose data which can be used to inform business and financing decisions.
This is proof that the market values and continues to demand comprehensive environmental information.
Why disclose?

Need to register to disclose?
New users who require access to the CDP Portal to disclose, and those volunteering to ‘self-disclose’ (as a Self-Selected Company, or SSC), may need to register to disclose.
Note, new Disclosers requested by their customers or capital markets don’t need to register to disclose – they'll receive a direct link to activate their CDP account (and get access to the Portal).

Changes to the 2026 questionnaire
In 2026, we will be making some changes to the questionnaire to support organizations navigating an increasingly complex global landscape. From accelerating climate impacts to resource insecurity and biodiversity loss, markets need intelligence that fills critical data gaps.
High quality data helps organizations navigate risk, build resilience and identify opportunities for Earth-positive action.
CDP’s 2026 updates are designed to strengthen the link between data and action. We are committed to:
Deepening alignment with global standards;
Expanding our coverage to ocean; and
Enhancing the usability and accessibility of the data we surface.
What changes are we making?Why we are making these changes
Watch our short video explainers to learn more about these changes:
Ready to disclose in 2026?
Log into the CDP Portal to disclose for the 2026 disclosure cycle.
Disclose nowExplore questionnaires, guidance and scoring methodologies
FAQs
View our full FAQs covering disclosure, scoring, the admin fee, and more.
Learn more

About CDP
CDP runs the world’s only independent environmental disclosure system with unparalleled depth and breadth across regions, sectors and environmental issues.

How to disclose
Find step-by-step instructions to disclose through CDP in 2026, plus guidance and scoring materials for corporates, SMEs, cities, and states and regions.

Request data
Learn more about who can request environmental, how to request this and more.

Why disclose?
Disclosing through CDP puts the right data in the hands of those who can make changes the planet and economy need.

Alignment with disclosure frameworks and standards
By bringing frameworks and standards together in one questionnaire, we simplify the process and make it easier to share information back to the market in one dataset.
Further support and services

CDP Reporter Services
Get tailored support, enhanced data access and thought leadership on reporting and managing environmental risk.

CDP Accredited Solutions Providers (ASPs)
Access our global network of expert support for disclosure and other environmental services.

CDP Help Center
Browse our library of knowledge articles covering specific steps in the disclosure process, and raise a case with our support team.