Meeting Evolving Stakeholder & Regulatory Expectations
The Apex team of sustainability and climate change professionals brings over 200 years of combined experience, assisting a wide range of organizations, including over 50 Fortune 500 firms, with achieving their sustainability goals. Based on our work with public and private clients in a variety of industries, we understand the unique challenges that accompany setting and operationalizing sustainability goals, while also reducing costs and improving efficiency.
Our Sustainability Assurance Solutions
- Greenhouse Gas (GHG), Sustainability and Environmental, Social, and Governance (ESG) Data Verification and Assurance: Our team is well versed in both regulatory and voluntary assurance frameworks, including the CDP, Science Based Targets Initiative (SBTI), Corporate Sustainability Reporting Directive (CSRD), California Corporate Greenhouse Gas Reporting and Climate-Related Financial Risk Disclosure Programs, Dow Jones Sustainability Index, and Global Reporting Initiative (GRI). Our assurance capabilities include greenhouse gas accounting, supply chain disclosure, and a full suite of other sustainability metrics. We are rated as the top ESG & Sustainability Assurance Services provider by Verdantix and we verify GHG emissions and other sustainability metrics for over 300 companies annually, following ISO 14064-3, ISSA 5000, and AA1000AS. We can do the same for you.
- Product Lifecycle Assessment (LCA) Assurance: Apex delivers independent sustainability assurance for product-level environmental data, helping clients verify life cycle assessments, product carbon footprints, and Environmental Product Declarations (EPDs) with confidence under globally recognized standards. We enable organizations to defend environmental claims, strengthen Scope 3 and supplier data, and meet rising regulatory and procurement demands for transparent, credible sustainability information.
- Airport Carbon Accreditation: Apex provides the independent assurance services required for Airport Carbon Accreditation across all program levels, confirming that emissions data and supporting evidence meet accreditation requirements.
Our Sustainability Consulting Solutions
- Sustainability and ESG Program Baseline Review and Consulting: Our team will review your corporate sustainability policies and ensure alignment with your sustainability program strategy and goals. This may include benchmarking, materiality assessment, interviews with key stakeholders, and a review of your existing scorecards and metrics.
- GHG Inventory Development: Apex has deep experience in developing GHG inventory and inventory management plans for clients, including Scope 3 calculations and supply chain engagement programs.
- Supply Chain Solutions: Apex assesses the accuracy and completeness of supplier-reported GHG, decarbonization, energy, and ESG data to ensure it is evidence-based, well-documented, and audit-ready. Apex designs supplier engagement programs and strengthens data management processes to enable a transition from spend-based Scope 3 estimates to verified, supplier-specific data that supports decision-making.
- Product Sustainability: We help our clients to measure and reduce product impacts across the full life cycle while meeting rising expectations from regulators, investors, and procurement through rigorous product carbon footprints and lifecycle assessments.
- Quality Management System (QMS): Apex helps companies design and operate a sustainability-focused QMS that ensures reliable processes, supports verification, and aligns ISO-based foundations with program-specific requirements.
- Building Benchmarking and Performance Standards: Stay ahead of jurisdiction-specific Building Performance Standards with Apex’s team of Certified Energy Managers, engineers, and sustainability experts delivering benchmarking and compliant reporting. We simplify complex, location-specific requirements so you avoid penalties, reduce costs, and improve building performance with confidence.
- Water Sustainability: Apex has deep expertise in water supply, stormwater management, and wastewater treatment and reuse for both public and private sector clients. We offer a wide range of services to help our clients achieve their water sustainability goals, including water reuse, water loss prevention, water efficiency, stormwater management, stormwater reuse, volumetric water benefit analyses, and water risk assessment. We bring a unique mix of engineering and sustainability advisory expertise to every project.
Additional Services
- Climate Risk Assessment and Scenario Analysis
- Commuter Program Sustainability Data Management
- Extended Producer Responsibility (EPR)
- World Gold Council Conflict-Free Gold Standard®
- Zero waste to landfill
- Global real estate sustainability benchmark (GRESB)
- Thematic Bond Second Party Opinion (SPO)
Our Broad Expertise Spans the Following Industry Guidelines
- CDP (Silver verification solutions provider)
- Alliance for Water Stewardship (Member)
- International Standard on Sustainability Assurance 5000 (ISSA 5000)
- California Air Resources Board (CARB) Mandatory GHG Reporting Accredited Verification Body
- Sustainability Accounting Standards Board (SASB)—Sector‑Specific
- Mining and Metals (ICMM Requirements)
- Oil and Gas (IPIECA Guidance)
- GRI G4 Sector Guidance
- Food Processing
- Financial Services
- Construction and Real Estate
