• September 2025

Organisations are facing increasing pressure from consumers, regulators, and investors to act on sustainability. Yet, securing investment for these initiatives remains a challenge, especially when benefits are long-term or intangible.

This article explores how the Five Case Model, a robust methodology used by HM Treasury, can help organisations build compelling business cases for sustainability investment.

Why sustainability investment matters

These trends underscore the urgency for businesses to act and secure the funding needed to do so.

  • 76 of businesses say sustainability is central to their strategy
  • 65 of consumers consider sustainability in their purchasing decisions.
  • 94 of investors factor ESG into their decisions.

The Five Case Model

The Five Case Model helps organisations evaluate sustainability initiatives across five dimensions:

  • Strategic Case

    Establishes the rationale and case for change

    Strategic Case

  • Economic Case

    Evaluates value for money by comparing costs and benefits

    Economic Case

  • Commercial Case

    Assesses the procurement and delivery model requirements

    Commercial Case

  • Financial Case

    Demonstrates affordability and financial returns

    Financial Case

  • Management Case

    Details how the initiative will be delivered, governed and monitored

    Management Case

Client story: Circular services funding at a luxury UK automaker

A leading UK-based luxury automotive manufacturer sought to shift from a traditional linear manufacture-and-wholesale model to a circular approach, where vehicle ownership is retained throughout the asset’s life. Using the Five Case Model, BearingPoint assessed the business case and demonstrated positive Net Present Value across all categories, validating the strategic and commercial potential of circularity.

Driving investment forward

Crucially, The Five Case Model gives weight to both tangible and intangible drivers of value. By using the Five Case Model, businesses can move beyond narrow financial metrics and present a holistic and robust case for sustainability investment. This not only secures funding but also accelerates the transition to sustainable practices.

  • Securing Sustainability Investment: Harnessing the Five Case Model
    Securing Sustainability Investment: Harnessing the Five Case Model 538.21 KB Download

Would you like more information?

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  • Tony Farnfield
    Tony Farnfield
    Partner
    United Kingdom
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  • Richard Walters
    Richard Walters
    Senior Manager
    United Kingdom
    Contact me