Manage sustainability as well as you manage finance.

Flagship helps organisations turn fragmented sustainability efforts into better decisions, stronger resilience and lasting business capability.

Through senior expertise, proprietary technology and continuous learning, we give your organisation what it needs to manage change.

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Trusted by leading organisations across Europe

Amazon Veolia Dr. Max Mattoni Mondelez International Erste Group Vienna Insurance Group Hanwha MONETA Money Bank
50+leading organisations supported
10+years of experience
B CorpB Corp Certified
EcoVadisEcoVadis Training Partner

Complex challenges. One trusted partner.

Sustainability does not belong to a single department. It shapes strategy, finance, operations, procurement, legal, communications and investor relations.

Three capabilities. One trusted partner.

Everything you need to move sustainability forward.

Sustainability isn't a single project. It's an ongoing business capability.

  • Some organisations need strategic guidance.
  • Others need better systems and data.
  • Many need to build the internal knowledge to keep progressing long after a project is complete.
  • Most need all three.

That's why Flagship brings together senior expertise, proprietary technology and continuous learning into one connected ecosystem—supporting your organisation from strategy to implementation and beyond.

Flagship

Senior Expertise

Powered by our professional team with core values

Every project is led by senior consultants who combine sustainability expertise with practical business experience.

  • solve complex challenges
  • make informed decisions
  • turn regulatory expectations into practical action
Flagship Platform

Proprietary Technology

Powered by the Flagship Platform.

The Flagship Platform is the technology behind our consulting.

  • sustainability reporting
  • carbon-footprint calculation
  • supplier assessment
  • collaboration across organisations and corporate groups
Flagship Academy

Continuous Learning

Powered by the Flagship Academy.

The Flagship Academy helps your organisation stay capable as sustainability continues to evolve.

  • expert sessions
  • practical guidance
  • proven methodologies
  • accessible tools
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Trusted by organisations that expect more.

Our clients don't come to us for reports. They come to us for better business outcomes.

Whether supporting investment decisions, preparing for new regulations, improving sustainability data or building long-term capability, we help organisations turn sustainability into practical business value.

17

Portfolio Companies

A unified approach to ESG and carbon management across an entire investment portfolio.

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50%

Faster Data Collection

Digital workflows that reduced reporting effort and improved data quality.

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€450M

sustainable financing

Supporting investment decisions with robust sustainability frameworks.

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Built on values

What we deliver matters. How we work matters just as much.

We believe sustainability creates the greatest value when it becomes part of better business decisions.

The result isn't just successful projects. It's long-term partnerships built on trust.

95%+

Client satisfaction

80%+

Revenue from long-term clients

95%+

Professionalism & integrity

Sandra Feltham
"After years of advising organisations, I realised the biggest challenge wasn't a lack of ambition—it was a lack of practical systems that made sustainability easier to manage."
Sandra FelthamFounder & CEO | President, Business Leaders Forum

Let's build what's next.

Whether you're preparing for new regulation, strengthening your sustainability strategy or building internal capability, we'd love to hear what you're working on.

Let's start with a conversation about your business - and explore how Flagship can help you move forward.