IRIS is the catalog of generally-accepted performance metrics that leading impact investors use to measure social, environmental, and financial success, evaluate deals, and grow the credibility of the impact investing industry.

About IRIS

IRIS is managed by the Global Impact Investing Network (GIIN), a nonprofit organization dedicated to increasing the scale and effectiveness of impact investing. The GIIN offers IRIS as a free public good to support transparency, credibility, and accountability in impact measurement practices across the impact investing industry. IRIS provides added value in the following ways:

1 One-stop Shop

By cataloging the most useful metrics from across the industry in one place, IRIS takes the guesswork out of which performance metrics to use.


2 Aggregate & Compare

By providing a standard common language to talk about results, IRIS makes it easier to compare investments and aggregate information across a portfolio.


3 Increase Credibility

98% of investors recognize the importance of standardized metrics and over 5,000 organizations are using IRIS to evaluate, communicate and manage their social and environmental performance.

4 Reduce Reporting Burden

IRIS doesn’t reinvent the wheel and incorporates and aligns with widely accepted 3rd party standards wherever possible. Organizations can use IRIS as the anchor for their diverse reporting requirements.

Start Using IRIS Metrics

The IRIS catalog contains generally-accepted performance metrics that can be used to understand an organization’s social, environmental, and financial performance. Each IRIS metric is accompanied by a standardized definition and user guidance. With IRIS metrics, investors can compare performance information across their portfolio, or within specific sectors or investment objectives.

Using IRIS does not result in a certification or performance rating. Instead, IRIS metrics provide the foundation for any impact measurement system, and can be incorporated into different performance systems, such as assessment tools, scorecards, and methodologies. Organizations tracking performance data aligned with other measurement systems may already track IRIS-compatible data through the network of 3rd party standards, reporting frameworks, and compatible impact measurement tools

Get Started Using IRIS!

Impact Investing

IRIS is designed to meet the needs of impact investors. Impact investments are investments made into companies, organizations, and funds with the intention to generate measurable social and environmental impact alongside a financial return. Impact investments can be made in both emerging and developed markets, and target a range of returns from below market to market rate, depending upon the circumstances. Learn more

Our Approach

The IRIS catalog is built on more than 40 existing metric taxonomies and 3rd party standards. All metrics are considered for inclusion in IRIS through a rigorous process that involves input and consultation from field leaders and a broad and diverse group of stakeholders. The full IRIS catalog is maintained and updated with support from a formal Advisory Body comprising experts in impact measurement and other relevant specialties. Learn more