BlueMark, Tideline’s independent impact verification business, was founded with a mission to “strengthen trust in impact investing” and to help bring more accountability to the impact investment process. We believe impact verification is a key ingredient for establishing and maintaining trust between impact investors and their stakeholders. By providing a reliable resource for independent, third-party assurance of impact claims and practices, BlueMark plays an important role in advancing best practices and ensuring the impact investing industry scales with integrity.

BlueMark’s verification services are designed to strengthen confidence in investors’ impact practices and results. Our services are structured around two key pillars of accountability for impact:

Impact Management Practice: the systems and processes used by an investor or company to manage their impact
Impact Performance: the reporting approach used by an investor or company to communicate their impact strategy, goals and results


We are thrilled to share BlueMark’s third annual Making the Mark report, Spotlighting Leadership in Impact Management!

In support of our commitment to best practice impact management, this year’s report includes an exciting new feature – the BlueMark Practice Leaderboard – which highlights the five BlueMark clients that scored in the top quartile against core features of robust impact management as reflected in the Operating Principles for Impact Management. The report also contains an updated BlueMark Practice Benchmark, which shows the distribution of investor impact management practices by quartile, and a Dashboard of Practice Indicators, which provides a tool for investors to assess their own practices against a peer set.

Download the report here: Making the Mark 2022 Spotlighting Leadership in Impact Management


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