BlueMark, a Tideline company, is a leading provider of independent impact verification services for investors and companies.
BlueMark 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.
Consistent with our goal of contributing to public education, and continued practitioner learning and improvement, we are committed to analyzing verification data and results, and publishing research based on our sample set of verifications so that the impact investing field can learn from best practices and address shared challenges.