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 improved guidance, navigation support and more.
The corporate questionnaire and guidance are now available to explore in the CDP Portal. The cities, states and regions questionnaires and guidance will be available in due course.
Key dates 2026
Prepare to disclose
Explore our 2026 questionnaires, guidance and scoring methodologies (as these are published) in the CDP Portal. Export these 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.
Explore questionnaires and guidance
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 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 and guidance

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.
The cities, states and regions questionnaires and guidance will be available in due course.

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.
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, when the online form becomes available on June 17.
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:
Prepare to disclose now
Explore our 2026 questionnaires, guidance and scoring methodologies (as these are published) in the CDP Portal. Export these into a simple PDF format based on your sector and the themes you're disclosing on.
FAQs
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.