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Healthy Buildings.
Built on Science.

9 Foundations offers strategic advising and custom healthy buildings solutions to improve the indoor environment and its impact on health and performance.

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Trusted by the World's Best Companies

Healthy Buildings:
9F Science-based Tools and Services

The great convergence of healthy, sustainable, smart, and safe buildings is underway. Our science-first approach is protecting the health of millions across the globe in the places they work, live, and learn.

About Us

About Us

Learn about the origin of The 9 Foundations of a Healthy Building.

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Meet Our Experts

Meet Our Experts

Learn more about the 9F team of world-class scientists and indoor environmental experts.

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Career Opportunities

Career Opportunities

9F is always on the lookout for extraordinary public health talent. If you are an expert in environmental health, industrial hygiene, climate science, or the built environment and are committed to advancing health and sustainability, we want to hear from you.

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Contact Us

Contact Us

For prospective clients, employees, and media inquiries, please complete this form to get in touch with the 9F team.

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