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GHG Verification Services for ESG Reporting

It’s that time of year for companies to prepare ESG reporting and third-party ESG assurance and verification for annual submission to stakeholders and regulatory agencies. Start now to submit your 2026 disclosures on time. Talk to one of our experts -- there is no charge or obligation.

OUR THIRD-PARTY REVIEWS RESULT IN ASSURANCE AND VERIFICATION STATEMENTS FOR:

CSRD compliance
Environmental performance metrics submitted to GRESB assessments
Climate-related data submitted to CDP questionnaires
Disclosures within ESG or Sustainability Reports (aligned to GRI or other standards)
Disclosures submitted due to investor, customer or other stakeholder requests

Boost Your Target Sustainability Scores

Ensure Compliance

Meet regulatory standards and avoid submission delays or penalties.

Build Investor & Client Trust

Demonstrate your commitment to transparency and sustainability.

Identify Opportunities

Uncover areas for sustainability performance improvements before submission.

bridge investment group-1 "We thoroughly enjoyed working with Environ's ISOS Group throughout our assurance process. From prompt, clear communication during our engagement to extensive review of our ESG report’s data, Environ's ISOS team made our first assurance experience very seamless. We would recommend them to other firms who are looking to assure their report data for the first time or engage with an experienced partner."

Isela Rosales
Managing Director, Head of ESG & Sustainability
Bridge Investment Group

4 Steps to On-Time Compliance

Big consultancies are looking for big-budget projects with lengthy timelines. Our team works with organizations of all sizes. We're efficient, aware of budget constraints so we're more affordable, and client satisfaction matters.

→ Risk Assessment → Data Verification

→ Compliance Review → Final Certification

Compliance, sustainability, and facilities professionals for commercial real estate, REITs, hospitals and healthcare networks, higher education, data centers, manufacturers, and food and agriculture -- our ISOS Group helps you navigate complex data, and compliance and regulatory standards to achieve your target ESG score and sustainability reporting deadlines.

Deadlines:
GRESB Real Estate: July 1, 2026
CDP to Receive a Score: Week of September 14, 2026

Your Partner

Lauren Anderson Circle Image (1) "Organizations put a lot of effort into meeting regulatory and voluntary sustainability commitments. The information is complex. Validating those efforts and the required reports to ensure accuracy and to instill confidence in their mission is critical to their credibility with customers and investors. We have been a leading independent source in the market for more than 16 years – and we take this work seriously as your trusted advisor."

Lauren Anderson
Director, Assurance & Verification
Environ's ISOS Group

WHY CHOOSE ENVIRON'S ISOS GROUP?
Expertise, Compliance, and Trust

Hundreds of companies rely on ISOS Group, a division of Environ, for independent Assurance and Verification services. This team of industry experts with in-depth regulatory knowledge and a commitment to sustainability understands the nuances of sustainability and ESG reporting across multiple industries, ensuring that your disclosures align with global best practices.

16 +

Years of Experience

500+

Companies Serviced

Quick

Turnaround

We continuously monitor regulatory requirements including:

EU CSRD
Corporate Sustainability Reporting Directive

IFRS/ISSB
Sustainability Disclosure Standards

SEC Climate
U.S. Climate Disclosure Rule

GRESB
Real Estate & Infrastructure ESG

CDP
Carbon Disclosure Project

California Acts
Climate-Related Disclosure Acts

GRI
Global Reporting Initiative

TCFD
Task Force Climate-Related Financial Disclosure