Tideline

Tideline is a specialist consultant for the impact investing industry, charting a course with expert, tailored and actionable advice to clients developing impact investment strategies, products, and solutions. 

Founded in 2014, Tideline is a recognized leader in the market with experience guiding clients through each step of the impact investment process. From developing new industry nomenclature to collaborating with standard-setters, Tideline is a pioneer in the impact investing industry with a track record of establishing and advancing best practices. 

BlueMark, Tideline's independent impact verification business, was founded in 2020 with a mission to “strengthen trust in impact investing” and to help bring more accountability to the impact investment process. By providing a reliable resource for independent, third-party assurance of impact claims and practices, BlueMark plays an important role in ensuring the impact investing industry scales with integrity.