the Mark

The Benchmark for
Impact Investing Practice


Align their impact objectives with the 169 targets underlying the Sustainable Development Goals

Find out what it takes to be an IMPACT LEADER

Many of the world’s largest and most innovative impact investors, representing $99 billion in impact assets, choose BlueMark to verify the alignment of their impact management practices with key industry standards, like the Operating Principles for Impact Management.

Bain Capital Double Impact, LP | EDFI Management Company (EDFI-MC) | Nuveen, a TIAA company | Big Society Capital Limited | FinDev Canada | Partners Group AG | BlueOrchard Finance Ltd. | Finnish Fund for Industrial Cooperation (Finnfund) | PG Impact Investments AG | Calvert Impact Capital | Franklin Templeton Social Infrastructure Fund | Prudential Financial, Inc., Impact & Responsible Investing | CDC Group plc | FullCycle Management, LLC | Quona Capital Management Ltd. | Community Investment Management LLC | Investment Fund for Developing Countries (IFU) | The Osiris Group | Closed Loop Partners | Kohlberg Kravis Roberts & Co. L.P. | UBS Group AG | DEG – Deutsche Investitions-und | Entwicklungsgesellschaft mbH | LeapFrog Investments | Women’s World Banking Asset Management | European Bank for Reconstruction and Development (EBRD) | LGT Venture Philanthropy Foundation

We are excited to introduce the BlueMark Practice Benchmark, a first-of-its-kind tool based on robust DATA and INSIGHTS that allows market participants to differentiate between impact leaders and impact learners.Explore what differentiates Practice Leaders from Practice Learners in our Practice Benchmark Dashboard, which includes key practice indicators that can be used as a reference for impact investors building and improving their impact management systems.


Align staff incentive systems with impact performance


Assess each investment using the IMP’s five dimensions of impact


Systemically follow up and engage with investees to address ESG gaps and risks

Impact verification is not only important to understand how our own impact standards and practices align with the Principles and where we can improve, it also helps us in our selection and assessment of fund managers through which CDC invests indirectly.

CDC Group
Verification as a due diligence tool

Download the 2021 ‘Making the Mark’ report to learn more about best practices in impact management.

Our engagement with BlueMark has been an important part of our ability to both benchmark and improve our impact management efforts over time. The team brings a unique perspective of what is common and best practice in the impact marketplace and we have benefited from this insight.

Improving practice through verification


Solicit input from key stakeholders to assess impact performance


Monitor and review any unexpected positive or negative impacts

Closed Loop Partners believes in the integration of environmental and social value into markets. BlueMark represents critical accountability, given that impact outcomes have yet to be globally standardized. BlueMark brings transparency to impact processes and empowers market participants and stakeholders to confirm that impact outcomes are credibly derived.

Closed Loop Partners and Nestlé
Impact mandate verification

Download the 2021 ‘Making the Mark’ report to learn more about best practices in impact management.

And to learn more about BlueMark’s approach to impact verification, download last year’s ‘Making the Mark’ report on investor alignment with the Impact Principles or visit our Resources page.


BlueMark, a Tideline company, is a leading provider of impact verification services in the impact investing market. BlueMark was founded with a mission to “strengthen trust in impact investing” and to help bring more accountability to the impact investment process. BlueMark is an independent  subsidiary of Tideline Advisors, LLC, a certified women-owned advisory firm in impact investing. Since its founding in 2014, Tideline has become a recognized leader in impact management and measurement, working with leading asset owners and managers to design and implement impact management systems.

BlueMark is a trademark of Tideline Advisors, LLC.

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Tideline is a specialist consultant for the impact investing industry, charting a course with actionable advice and implementation services.