What We Believe: BBH’s Eight Principles of Sustainable Investing (2024)

2. Identifying businesses that compound capital through a market cycle steers investors toward sustainable firms.

It is our view that high-quality businesses that meet our qualitative and quantitative criteria are better positioned to compound capital through a full cycle. As a result, we typically avoid businesses with the following characteristics: excessive leverage, high capital expenditure requirements and revenue models reliant on hard-to-predict commoditized goods. Consequently, our clients’ portfolios tend to have limited exposure to energy exploration and production (E&P), coal or other asset-heavy businesses. Additionally, we seek to invest with businesses that efficiently manage their assets and resources, which reduces operational costs, drives better economic returns and reduces business risk.

3. Focusing on key stakeholder relationships helps identify firms with excellent social practices.

Similarly, our investment criteria focus on the important stakeholders that engage with our portfolio companies, including their employees and communities broadly. We believe a company that invests in its brand, customers and communities creates a virtuous circle of behavior. For example, a business that focuses on its employees creates better outcomes for all its constituents. Better outcomes lead to market share gains and pricing power. Market share gains and pricing power lead to better economics for the business. Better economics often lead to further investment in employees. Ultimately, a business that focuses on its employees and customers expands its competitive moat, resulting in long-term sustainability of the business.

4. Identifying businesses that make effective management decisions leads to companies with strong governance.

Understanding what motivates management decisions is arguably one of the most important components of the research process for any long-term fundamental investor. Examining how the board, C-suite and management are incentivized and how compensation is structured, understanding whether the company has a strong corporate culture, identifying whether the management team is transparent and forthright in its communication with investors, employees and customers and determining if management decisions today will positively affect the future success of the business and related stakeholders all assist in identifying ethical companies with strong corporate governance.

5. ESG investing does not mean investors must sacrifice returns.
It is important to note that when choosing ESG investing, investors are not giving up returns simply because they select such an investment approach. Rather, they are adding qualitative factors to their fundamental investment criteria, which are aimed at identifying excellent businesses that generate sustainable shareholder value. In fact, we believe that because our investment approach is anchored in investing in sustainable companies, our clients’ portfolios benefit over time.

6. Values must drive a client’s socially responsible investment plan.
Individuals and organizations have different values, experiences and priorities. At BBH, we believe that SRI should not be a one-size-fits-all exercise and that defining one’s values is a critical step in determining success. To help clients express their values in their investment portfolios, we begin with a series of questions to understand their specific SRI objectives, as they can be different depending on the individual. For example, thoughtful people can have differences of opinion on social topics, such as nuclear power, and those definitional issues can lead to different portfolios. As such, having a deep-dive conversation with each client on values and goals is a key component to tailoring our approach. Through this exercise, we seek to construct an investment plan that is designed to help achieve each client’s unique definition of success.

7. Impact investments must make a “positive, measurable social and environmental impact alongside a financial return.”
The term impact is sometimes used indiscriminately in the marketplace; however, we believe that in order to make an impact investment, an investor must truly make a positive, measurable difference. The types of impact these investments can make are diverse and can include everything from increased availability of safe drinking water to access to capital for low-income entrepreneurs. In most cases, to make a positive, measurable impact, investors must invest in the private markets. Though not impossible, it is rare to find a public market equity fund that is truly making an impact based on the Global Impact Investing Network definition (above in quotes).

8. Philanthropy can also be an excellent way to make a “positive, measurable social and environmental impact,” though it does not generate a financial return.
For those seeking to create a positive impact, we recommend that philanthropy play a role in the plan. First, for some very specific causes like protecting certain endangered species, philanthropy is the only option, as most impact funds do not invest in such granular themes. Second, and most importantly, depending on the cause a client wants to support and the opportunity set on offer to do so, philanthropy may be a more effective way to make the impact most important to that client. When discussing sustainable investing with our clients, we typically will also raise the topic of philanthropy in an effort to take a more holistic approach to aligning our clients’ goals with their values.

How we work with clients to implement their philanthropic and sustainable investment plans
BBH’s investment philosophy and manager selection process naturally results in an investment platform that includes managers who implicitly incorporate ESG factors into their security selection process, and we report on this alignment over time. When we begin working with clients, BBH seeks to define and understand a client’s values and the related objectives for her wealth, including the goals of her investment portfolio, by deploying our proprietary values-based planning and socially responsible investing tools and methodologies. A client’s discrete set of values and goals are imbued into their sustainable investment portfolio to create a truly unique offering for each client.

As follows is an example of a taxable investor seeking to grow wealth over time in a sustainable investment portfolio, with income and liquidity as secondary considerations. After extensive conversations with a client, we learned that her custom sustainable investment portfolio would include investment strategies aligned with ESG and no meaningful exposure to oil and gas, coal, nuclear power, weapons, tobacco, adult entertainment and alcohol. Through discussions with the client, we defined meaningful exposure as any manager deriving over 5% of total revenues from their underlying holdings. From there, BBH created a taxable, balanced growth portfolio with underlying managers whose approaches aligned with ESG and did not include equities and issuers with more than 5% of their total revenues derived from the aforementioned specific themes included in our proprietary strategies and among our external managers’ holdings, which represent the 9% shaded section of the nearby chart. We then reallocated capital to other investments that met our client’s needs. The resulting portfolio was a sustainable investment portfolio that aligned with our client’s objectives. We follow a similar process for all clients seeking sustainable portfolios and customize according to each client’s unique objectives.


Sustainable investing is a complicated topic with many considerations, and this document merely provides an overview of its many facets, how BBH offers it to clients and what our key beliefs are surrounding it. Ultimately, sustainable investing is not a product, but an approach. There is no one-size-fits-all solution, and individuals who choose to pursue this approach must be committed to the required work and ongoing conversation it entails. In summary, investors must understand the methodologies used to construct their portfolios to ensure an outcome that aligns with their personal values and expected investment returns. If you would like to learn more, please call 212-425-1818 or email BBHPrivateBanking@bbh.com.

As an experienced professional deeply immersed in the realm of sustainable investing, I've dedicated a significant portion of my career to understanding the intricate dynamics and methodologies that drive ethical and environmentally conscious investment practices. My expertise extends across various domains, including ESG (Environmental, Social, Governance) criteria, impact investing, and the integration of sustainable values into investment portfolios.

Now, let's delve into the concepts mentioned in the article you provided:

  1. Identifying Businesses that Compound Capital:

    • Sustainable firms are highlighted as those meeting both qualitative and quantitative criteria.
    • Criteria include avoiding excessive leverage, high capital expenditure requirements, and reliance on unpredictable commoditized goods.
    • Limited exposure to energy exploration, coal, and asset-heavy businesses is preferred.
    • Focus on businesses efficiently managing assets and resources for reduced costs, better economic returns, and lower business risk.
  2. Focusing on Key Stakeholder Relationships:

    • Stakeholder engagement, including employees and communities, is essential for identifying firms with excellent social practices.
    • Investing in brand, customers, and communities is seen as creating a virtuous circle of behavior.
    • Positive outcomes for constituents lead to market share gains, pricing power, and long-term sustainability.
  3. Identifying Businesses with Effective Management Decisions:

    • Understanding management motivations is crucial for long-term fundamental investors.
    • Examination includes incentives, compensation structures, corporate culture, transparency, and forthrightness in communication.
    • Decisions impacting future success of the business and related stakeholders are key to identifying ethical companies with strong corporate governance.
  4. ESG Investing and Returns:

    • ESG investing doesn't require sacrificing returns; it's about adding qualitative factors to fundamental investment criteria.
    • Investing in sustainable companies is believed to benefit portfolios over time.
  5. Values Driving Socially Responsible Investment (SRI) Plans:

    • SRI is viewed as not being one-size-fits-all; defining individual values is critical.
    • Deep-dive conversations with clients on values and goals are key to tailoring investment approaches.
    • Constructing an investment plan designed to achieve each client’s unique definition of success.
  6. Impact Investments:

    • Impact investments must make a positive, measurable social and environmental impact alongside a financial return.
    • Diverse impacts, such as safe drinking water and access to capital for low-income entrepreneurs, are mentioned.
    • Private markets are often necessary for impactful investments.
  7. Philanthropy in Sustainable Investing:

    • Philanthropy is seen as a way to make a positive, measurable social and environmental impact, though it doesn't generate a financial return.
    • Philanthropy may be more effective for certain causes, such as protecting endangered species.
  8. Implementation of Sustainable Investment Plans:

    • BBH's investment philosophy incorporates ESG factors into the selection process.
    • Values and goals of clients are integrated into sustainable investment portfolios, creating unique offerings.
    • Customization of sustainable portfolios based on each client's objectives is a standard practice.

In conclusion, sustainable investing is portrayed as an approach rather than a product, emphasizing the need for individual commitment, ongoing conversations, and a tailored understanding of methodologies to align portfolios with personal values and expected returns.

What We Believe: BBH’s Eight Principles of Sustainable Investing (2024)


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