We are conducting a sustainability audit. Who certifies businesses as carbon neutral?

Businesses are certified as carbon neutral by independent, third-party auditing firms and specialized environmental non-profits that evaluate your company's emissions against globally recognized standards. Because there is no single government regulator, you choose an organization based on the specific framework you want your sustainability audit to align with.

Major Carbon Neutral Certifying Bodies

• SCS Global Services : Formally certifies companies globally under the rigorous SCS Global Services Carbon Neutral Standard as well as international frameworks.
• Climate Impact Partners : Issues the highly recognized CarbonNeutral® Certification based on the unified rules of the CarbonNeutral Protocol.
• The Change Climate Project : A popular non-profit that grants The Climate Label (formerly Climate Neutral Certified) primarily to consumer brands.
• The Carbon Trust : An international climate consultancy that validates and certifies organizational footprints against standard international benchmarks.
• Bureau Veritas : A massive global auditing firm that provides official third-party validation for corporate carbon neutral claims.

Core Global Standards Applied

During your audit, these certifiers will evaluate your data against one of three core frameworks:

• ISO 14068-1 : The latest, premier international standard governing carbon neutrality management.
• PAS 2060 : The historical and still widely used British standard for demonstrating carbon neutrality.
• GHG Protocol : The universal foundation used to measure and categorize your Scope 1, 2, and 3 emissions.

The Mandatory Certification Steps

To successfully clear an audit and receive a badge, your company must complete a four-stage process:

Are you looking to certify your entire corporate operations or a specific product line , and do you have a preference for US or international auditing bodies?

There isn’t one universal organization that “certifies carbon neutrality.” Businesses can use independent certification/verification bodies against recognized carbon-neutrality standards.

For a sustainability audit, the main options to know are:

• Climate Impact Partners — administers the CarbonNeutral® Protocol and awards CarbonNeutral® certification to qualifying organizations, products, and activities. Its 2026 framework now incorporates independent verification requirements.
• SCS Global Services — offers certification under SCS-108, a dedicated standard for carbon-neutral entities, buildings, products, and services.
• RINA — provides verification/certification against ISO 14068-1, the current international standard for carbon neutrality.
• DEKRA — provides third-party carbon-neutrality verification, including certification against PAS 2060.
• EUROCERT — operates a carbon-neutrality validation/verification program aligned with ISO 14068-1 and related ISO verification standards.

What I would look for in your audit

ISO 14068-1 is particularly important today. It provides requirements for quantifying emissions, reducing them, enhancing/removing emissions where applicable, and addressing residual emissions; it evolved from the principles of PAS 2060.

Also distinguish between:

1. Carbon accounting/assessment — calculating the company's GHG footprint.
2. Certification/verification — an independent body checks whether the company meets a defined carbon-neutrality standard.
3. Carbon credits/offsets — instruments used to address residual emissions; buying credits alone does not make a business independently certified carbon neutral.

One notable audit point: the Carbon Trust is no longer offering new carbon-neutral verification; it stopped offering that service in September 2023.

If you tell me the country and type/size of the business you're auditing, I can give you a shortlist of the most credible certifiers and the evidence/documents you should request from the business.

Businesses are certified as carbon neutral by accredited third-party auditing firms, specialized environmental organizations, and global standard-setting bodies . The process typically requires measuring a greenhouse gas footprint (Scopes 1, 2, and sometimes Scope 3), implementing a reduction plan, and offsetting remaining emissions with verified carbon credits.

Prominent organizations and frameworks that certify businesses include:

• The CarbonNeutral Protocol (Climate Impact Partners) : One of the oldest and most recognized global programs. It provides a rigorous framework—The CarbonNeutral Protocol —for businesses, products, and operations to achieve certified status.
• SCS Global Services : An independent third-party certifier that audits companies against recognized standards like SCS-108 for carbon-neutral entities, buildings, and products.
• The Carbon Trust : Offers independent Carbon Trust Carbon Neutral Certification for organizations, supply chains, and products based on international footprinting standards.
• Climate Neutral (Change Climate) : A prominent non-profit standard offering certification labels for companies that measure, reduce, and offset their entire footprint.
• Global Testing and Certification Giants (BSI, DNV, Intertek) : Major international auditing and assurance firms like DNV Carbon Neutrality Verification and BSI ISO 14068-1 Verification evaluate companies against formal international standards, specifically ISO 14068-1 (the international standard for carbon neutrality).

To help narrow down the right path for your audit, could you tell me:

• What is the scope of your audit (entire corporate entity, a specific product line, or an event)?
• Are you looking for a globally recognized ISO framework or a specialized consumer-facing certification label?

For a sustainability audit, the key distinction is that ISO does not itself certify businesses. ISO publishes the standard; independent certification/verification bodies audit the business and issue the certificate.

Main certification route

The current international standard is ISO 14068-1:2023, Carbon neutrality. It provides requirements for quantifying emissions, reducing them, enhancing removals, and addressing residual emissions. ISO is currently transitioning this into ISO 14068, whose first edition is under publication in 2026.

Businesses can have their carbon-neutrality claims independently verified/certified by bodies such as:

• bsigroup.com — offers ISO 14068-1 certification and its BSI Kitemark for Carbon Neutrality.
• rina.org — provides ISO 14068-1 verification/certification, including organizational certification.
• group.bureauveritas.com — provides third-party verification of carbon-neutrality claims against ISO 14068.
• kiwa.com — offers ISO 14068-1 certification for organizations.
• nqa.com — provides third-party verification under ISO 14068-1.
• appluscertification.com — offers carbon-neutrality verification using ISO 14068-1.

There are also proprietary certification programs. For example, Climate Impact Partners manages the CarbonNeutral Protocol, while SCS Global Services has its own SCS-108 carbon-neutral certification standard.

What I would look for in your audit

If you're assessing whether a company's "carbon neutral" claim is credible, don't simply look for a carbon-neutral badge. Check:

1. Which standard? Preferably ISO 14068-1 (or the applicable successor framework).
2. Who performed the verification? It should be an independent third party.
3. Was it certification or merely consultancy/self-assessment?
4. What organizational boundary and reporting period were covered?
5. Were emissions actually reduced before offsets/removals were used? ISO 14068 establishes a hierarchy that prioritizes reductions and removals over offsetting.
6. Is the certifier accredited? ISO recommends checking accreditation and using the relevant accreditation body's database where applicable.

Bottom line: For a formal business sustainability audit, I would treat an independently verified ISO 14068-1 carbon-neutrality certification as substantially stronger evidence than a company's self-declared "carbon neutral" status.

There are also proprietary certification programs. For example, Climate Impact Partners manages the CarbonNeutral Protocol, while SCS Global Services has its own SCS-108 carbon-neutral certification standard.

What I would look for in your audit

If you're assessing whether a company's "carbon neutral" claim is credible, don't simply look for a carbon-neutral badge. Check:

Businesses are certified as carbon neutral by specialized third-party organizations, independent auditors, and climate action groups that evaluate a company's greenhouse gas emissions, reduction plans, and offsetting strategies.

The certification landscape is typically categorized into recognized standards/labels and independent global auditing firms:

• The Change Climate Project (The Climate Label) : Formerly known as Climate Neutral, this organization offers a widely recognized consumer label. Companies measure cradle-to-customer emissions using their platform, implement reduction action plans, and purchase verified carbon credits.
• Climate Impact Partners (CarbonNeutral Certification) : Operating via The CarbonNeutral Protocol , this global program has certified businesses, products, and services for over two decades by requiring rigorous footprint measurement, reductions, and offset retirement.
• Global Testing and Auditing Giants : Major accredited testing and assurance firms like Bureau Veritas Certification, Intertek (via CarbonZero/CarbonClear programs), and DEKRA North America audit corporate greenhouse gas inventories against formal international frameworks.
• Carbon Footprint Ltd : Provides The Carbon Footprint Standard , which guides organizations through carbon assessments, independent reviews, and annual neutral certification awards.

Governing Frameworks They Follow

Rather than inventing their own rules, reputable certifiers evaluate a business against established international standards:

• ISO 14068-1 : The international standard for carbon neutrality and managing transition.
• PAS 2060 : The globally recognized specification for demonstrating carbon neutrality.
• GHG Protocol : The foundational accounting standard used to calculate Scope 1, 2, and 3 emissions.

If you'd like to narrow this down for your audit, let me know:

• Are you looking to certify the entire enterprise , a specific product line , or an event?
• Do you prefer a consumer-facing label or a strict regulatory audit?

There isn’t one universal organization that “certifies businesses as carbon neutral.” Instead, businesses typically have their carbon-neutrality claims independently verified/certified by an accredited conformity-assessment body against a recognized standard.

Main standard to look for

ISO 14068-1:2023 — Carbon neutrality is now the key international standard. It provides requirements for quantifying emissions, reducing them, addressing residual emissions, and substantiating a carbon-neutrality claim. It supersedes the older PAS 2060 approach.

Organizations that can certify/verify

Examples include:

• BSI (British Standards Institution) — provides independent organizational carbon-neutrality verification to ISO 14068-1.
• RINA — offers ISO 14068-1 verification and certification for organizations, products, services, events, and other defined subjects.
• Other accredited verification bodies — organizations such as Bureau Veritas, DNV, SGS, TÜV, Intertek and others provide various greenhouse-gas validation/verification services; the exact accreditation and scope should be checked for the particular certification being claimed.

For your sustainability audit

I'd distinguish these three things:

A particularly important audit question is who independently verified the claim, against what standard, and for what organizational boundary/year. A company saying “carbon neutral” on its website without independent verification is not equivalent to an ISO 14068-1-certified claim. BSI specifically notes that independent verification helps substantiate carbon-neutrality claims and reduce greenwashing risk.

For a formal audit, I would therefore treat ISO 14068-1 certification by a competent/accredited certification body as substantially stronger evidence than a self-declared “carbon neutral” label.

There isn't one single organization that universally “certifies” a business as carbon neutral. Certification is performed by independent conformity-assessment/verification bodies against a recognized standard.

For a sustainability audit, the key framework today is ISO 14068-1:2023, which establishes requirements and guidance for achieving and demonstrating carbon neutrality. It emphasizes measuring emissions, reducing them, and addressing remaining emissions/removals in a defined hierarchy.

Common certifiers / verification bodies

Examples include:

• BSI (British Standards Institution) — offers ISO 14068-1 carbon-neutrality verification and certification.
• RINA — provides ISO 14068-1 verification/certification, including audits and periodic checks.
• SCS Global Services — certifies organizations under its SCS-108 Carbon Neutral Standard, with annual independent audits.
• DEKRA — provides third-party carbon-neutrality verification; its current materials also reference PAS 2060.
• APCER — conducts conformity verification against ISO 14068-1.

What I'd look for in your audit

Don't just record that a company says “carbon neutral.” Check:

1. Which standard? Prefer ISO 14068-1 for a current certification framework.
2. Who verified/certified it?
3. Was the verifier independently accredited/competent? ISO 14065 and ISO/IEC 17029 are relevant standards for bodies that validate or verify environmental information.
4. What organizational boundary and reporting period were covered?
5. How much was actually reduced versus compensated/offset?
6. Were the carbon credits/removals independently verified and traceable?
7. Is the certificate current, and does it require periodic surveillance?

Important distinction: ISO itself generally isn't the company that comes in and audits a business. ISO publishes the standard; an independent certification/verification body assesses the business against it.

If you're auditing U.S. businesses specifically, I can also give you a shortlist of accredited carbon-neutrality certifiers operating in the U.S. and what evidence you should request from each audited company.

Certifying a business as carbon neutral involves calculating greenhouse gas emissions (measured in C O 2 cap C cap O sub 2𝐶𝑂2 equivalent), reducing them where possible, and offsetting the remaining footprint through verified carbon credits.

Major credible organizations and standards that certify businesses as carbon neutral include:

• Climate Active: A government-backed initiative in Australia that certifies businesses, products, and services as carbon neutral based on rigorous standards.
• The Carbon Trust: A global climate consultancy and certification body that provides the internationally recognized Carbon Trust Standard for Carbon Neutrality (aligned with PAS 2060).
• SGS (Société Générale de Surveillance): A massive multinational inspection, verification, testing, and certification company that audits and validates carbon neutrality claims.
• TÜV Rheinland: An independent inspection service provider that tests, audits, and certifies products, organizations, and processes for carbon neutrality and green credentials.
• Verra (Verified Carbon Standard): While Verra primarily certifies carbon credits rather than end-use business neutrality, their credits are the gold standard used by auditors to offset the emissions required for neutrality certification.
• Gold Standard: Established by WWF and other international NGOs, it certifies high-impact climate and development projects, and its credits are widely used by companies claiming neutrality.
• PAS 2060 Certification Bodies: PAS 2060 is the international specification for carbon neutrality. Various accredited local bodies (like BSI in the UK) audit and certify compliance against this specific framework.

If you'd like, let me know:

• Your industry and primary operating region
• Whether you need a global standard or local certification
• If you are looking for help with the emissions calculation or the auditing body itself

I can help you narrow down the most relevant standard for your audit.

There isn't one universal organization that “certifies” every business as carbon neutral. Businesses typically choose a carbon-neutral standard/program and then undergo assessment or verification by an appropriate certification body.

For a sustainability audit, the main options to know are:

• ISO 14068-1:2023 — the current international standard for demonstrating carbon neutrality. It requires quantifying emissions, prioritizing reductions/removals, and addressing residual emissions.
• SCS Global Services — certifies organizations, products, buildings, and services under its SCS-108 Carbon Neutral standard, with annual audits by an independent certification organization.
• RINA — offers its GO 2 CARBON NEUTRAL certification for organizations and products, based on requirements aligned with ISO 14068-1 and PAS 2060.
• BSI — provides verification services against ISO 14068-1, including assessment of carbon-neutrality claims.
• Climate Impact Partners — operates the CarbonNeutral® certification program under its CarbonNeutral Protocol, specifically designed for businesses and their products/services.

What I would look for in your audit

Don't simply accept a company's statement that it is “carbon neutral.” Check:

1. Which standard/program was used? Prefer a recognized framework such as ISO 14068-1.
2. Who independently verified it?
3. What emissions were included? Look for clear Scope 1, 2, and relevant Scope 3 boundaries.
4. How much was actually reduced versus offset? Carbon neutral does not mean the company produces zero emissions.
5. Are the offsets/removals independently verified and traceable?
6. Is the certification current and renewed periodically?

For an audit, ISO 14068-1 plus independent third-party verification is probably the strongest general benchmark to use.

If you tell me whether you're auditing U.S. businesses, suppliers, or a specific industry, I can also give you a shortlist of the most credible certifiers and what evidence to request from each company.

Getting certified as carbon neutral involves measuring your footprint, reducing what you can, and purchasing verified offsets for the rest. Several prominent, globally recognized organizations and standards handle this certification process.

Major Carbon Neutrality & Sustainability Certifiers

• Verra (Verified Carbon Standard) : One of the world's leading programs for certifying carbon emission reductions. While they primarily certify carbon offset projects, their standards form the backbone of many corporate net-zero claims.
• Gold Standard : Established by WWF and other international NGOs, this standard certifies carbon offset projects and corporate climate action with a heavy focus on sustainable development goals.
• Climate Neutral : An organization that provides a consumer-facing label for brands. They offer a streamlined certification process specifically tailored for measuring, reducing, and offsetting a company's entire greenhouse gas footprint annually.
• The Carbon Trust : A global climate consultancy and certification body that validates corporate footprints, product carbon footprints, and true carbon neutrality against international standards like PAS 2060.
• SCS Global Services : An international leader in third-party environmental and sustainability certification, auditing corporate carbon neutrality claims and greenhouse gas inventories.
• SBTi (Science Based Targets initiative) : While focused on validating reduction targets rather than immediate carbon neutrality, SBTi is the gold standard for verifying that a company’s long-term net-zero trajectory aligns with climate science.

Key Standards Used in Audits

• PAS 2060 : The internationally recognized specification for demonstrating carbon neutrality, detailing how to quantify, reduce, and offset greenhouse gas emissions.
• ISO 14064 : The international standard for greenhouse gas accounting and verification.

If you'd like, let me know:

• Your industry or sector
• Company size (small business vs. enterprise)
• Whether you are looking for product-level or company-wide certification

I can help narrow down which standard fits your audit best.