We’re Joining Forces: Sustainable Advantage, SustainabilityWorks & Ansa

We’re excited to share the news that in the past month we have welcomed two new firms, SustainabilityWorks and Ansa into the Sustainable Advantage Group!

This marks an exciting step for Sustainable Advantage’s growth, following the opening of our French office earlier this year. By expanding the Sustainable Advantage Group, we’re combining our strengths to deliver even more impact, broadening our reach, deepening our expertise, and unlocking new ways to support businessesx across the UK, Ireland, Europe and beyond.

About SustainabilityWorks

Founded in 2019, SustainabilityWorks has grown into one of Ireland’s most trusted ESG and sustainability consultancies. They have partnered with incredible clients, tackled complex challenges, and helped turn sustainability from a lofty ambition into real-world action.

SustainabilityWorks has a team of passionate, multi-disciplinary experts based in Ireland. They offer a bespoke service and take a hands-on, collaborative approach to delivering a range of services, including sustainability strategy and transformation, reporting, sustainable finance, and delivering training for company teams. As a Certified B Corp, they are part of a global community of businesses that meet high standards of social and environmental impact.

Learn more about SustainabilityWorks: sustainabilityworks.ie/about

About Ansa

Since 2017, Ansa has supported private equity funds, major infrastructure players and large corporates on their sustainable transformation journeys. In Latin the name Ansa means ‘to close the loop’, or ‘safe harbour’, reflecting their commitment to circular economy and more sustainable and resilient opportunities and returns.

Based in Paris, Ansa has grown into a leading provider of sustainability strategy and ESG operations, covering strategic positioning and market scanning, sustainable value creation and Net Zero business plans, investment advisory and due diligence work, as well as green financing, and reporting and assessments. They bring a skilled team with proven expertise and trusted partnerships with leading global asset managers and corporates with whom they tackled complex challenges.

Learn more about Ansa: ansa-services.com

What We Bring — Together

Here’s a snapshot of what our combined team can offer:

  1. ESG Advisory: Strategy, materiality, transformation, reporting, climate risk, net zero, and more — all tailored to your business.
  2. Sustainable Finance & Reporting: Guidance on CSRD, ESRS, GRI, TCFD, SFDR, EU Taxonomy, and other key frameworks.
  3. Training & Capacity Building: From boardrooms to public sector leadership, we build the skills to lead on climate and ESG.
  4. Climate Innovation: Supporting climate-tech start-ups, connecting corporates to solutions, and enabling ecosystem collaboration.
  5. Private Equity & Infrastructure: ESG due diligence, portfolio scoring, and digital tools for PE and infrastructure investors.
  6. Energy Services: Procurement, risk management, renewables, audits, and decarbonisation strategies that deliver real savings.
  7. Waste Solutions: Practical, cost-effective waste audits, reduction strategies, and compliance support.
  8. Utility Solutions: Early stage connection feasibility and design expertise on capital programmes that helps our clients to reduce cost and accelerate progress. 

Why This Matters

In a world of shifting headlines and growing urgency, one thing is clear: sustainability isn’t going away. It’s becoming more material, more measurable, and more mission-critical. Clients, investors, regulators, and communities need impact – and we’re here to help you deliver real solutions with real returns.

What’s Next?

This is a new chapter – one that builds on everything we’ve achieved to date and opens the door to even greater impact. We’re just getting started!