Looking to weave sustainability into your business strategy? These five consultancies are reshaping how companies approach ESG, from global giants to niche specialists.
The ESG Consulting Landscape in 2026
The demand for ESG consulting has exploded as stakeholders—investors, customers, and regulators—demand transparency and action. In 2026, companies face a complex web of reporting standards, from CSRD to SEC rules, and need partners who can navigate this terrain. The market now spans from boutique firms offering personalized guidance to global powerhouses with vast resources. For SMEs and social enterprises, finding a consultant that understands your scale and mission is critical. This roundup covers a spectrum of options, ensuring you can find a fit for your unique needs.
How We Evaluated These ESG Consultants
We assessed each firm on service scope, pricing clarity, and local fit. Service scope looks at the breadth of ESG offerings, from strategy to reporting. Pricing clarity considers how transparent they are about costs and engagement models. Local fit evaluates their ability to serve businesses of your size and in your region. We also noted each firm's distinctive strengths, such as industry specialization or innovative tools.
Here's a quick snapshot of the five ESG consultants we're featuring, with their best use cases and what you can expect from their websites.
| Provider | Best For |
|---|---|
| EY | Large enterprises needing global ESG integration |
| Good Endeavours Corporate Social Responsibility consultancy | SMEs and charities seeking personalized ESG strategy and communications |
| RSM US | Middle-market companies seeking practical ESG advisory |
| Inspired | Organizations focused on net-zero and carbon reduction |
| Anthesis Group | Companies seeking a full-spectrum sustainability partner |
The Five ESG Strategy Consultants in Detail
#1 EY
A screenshot of the EY website.
EY is a global professional services giant with a dedicated sustainability and ESG strategy practice. They offer end-to-end support, from materiality assessments to full strategy implementation and reporting. Their scale means they can handle complex, multinational operations and integrate ESG across all business functions. If you're a large enterprise needing a comprehensive, globally consistent approach, EY's resources are unmatched. They also invest heavily in AI and data analytics to drive ESG insights. For a deep dive, check their sustainability strategy services page.
#2 Good Endeavours Corporate Social Responsibility consultancy
A screenshot of the Good Endeavours website.
Good Endeavours is a boutique consultancy with over 20 years of experience in corporate responsibility and marketing. They specialize in developing ESG strategies and communications plans for SMEs, charities, and social enterprises. Their dual focus on strategy and communications sets them apart—they help you not only define your impact but also tell your story effectively. They emphasize building collaborative partnerships and making a positive difference for customers, colleagues, and the community. If you're a smaller organization looking for a personalized touch, they're a great fit. Visit their website to learn more about their approach.
#3 RSM US
A screenshot of the RSM US website.
RSM US offers ESG advisory services as part of their broader business consulting portfolio. They focus on middle-market companies, providing practical guidance on sustainability reporting and strategy. Their approach is grounded in audit and assurance expertise, which adds credibility to their recommendations. They help you navigate the complexities of ESG frameworks and integrate sustainability into your operations. For mid-sized businesses looking for a trusted advisor with a strong US presence, RSM is a solid choice. Their website details their enterprise strategy services.
#4 Inspired
A screenshot of the Inspired website.
Inspired is a UK-based consultancy specializing in energy and sustainability advisory, with a strong focus on net-zero and carbon reduction. They offer a range of services including ESG reporting, compliance, and energy management. Their expertise is particularly valuable for organizations in manufacturing, retail, and the public sector. They emphasize practical solutions that reduce costs and improve resilience. If you're looking to accelerate your net-zero journey, Inspired's specialized approach is worth considering. Their website showcases their service directory and case studies.
#5 Anthesis Group
A screenshot of the Anthesis Group website.
Anthesis Group is a global sustainability consultancy that helps businesses thrive in harmony with the environment. They offer a wide range of services, from carbon credits to human rights and social impact. Their solutions are impact-led and solution-oriented, covering everything from strategy to implementation. They work with a diverse range of sectors, including financial services, technology, and retail. If you need a partner to guide you through the entire sustainability journey, Anthesis's end-to-end approach is compelling. Their website provides a comprehensive overview of their solutions.
How to Choose the Right ESG Consultant for Your Business
Start by defining your goals: are you aiming for compliance, cost savings, or brand enhancement? Consider your company's size and resources—a boutique firm like Good Endeavours might offer more personalized attention, while a global player like EY brings scale. Look for consultants with experience in your industry and with companies of your size. Evaluate their approach to communications and stakeholder engagement, as this is crucial for long-term success. Finally, ask about their pricing structure and what kind of ongoing support they provide.
Streamlining ESG Data Collection with Automation
Modern ESG consultants increasingly use automation to streamline data collection and reporting. Tools like automated data feeds from utility providers and IoT sensors can track energy usage in real time. Software platforms can aggregate data from various sources, ensuring accuracy and reducing manual effort. This allows you to focus on strategy and action rather than spreadsheet management. When choosing a consultant, ask about their use of technology to enhance efficiency.
Final Thoughts: Finding Your ESG Partner
The right ESG consultant can transform sustainability from a compliance burden into a competitive advantage. Whether you're a startup or a multinational, there's a partner on this list that fits your needs. Take the time to assess your priorities and reach out for consultations. Remember, doing good is good for business—and with the right guidance, you can make a lasting impact.