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Three Squares Inc.® (TSI) is an environmental consulting firm which designs sustainability into the internal and external DNA of organizations.

A global leader in green event production and ISO 20121 compliance, TSI maintains the highest standards of environmental integrity across each of its projects.

One Drop Interactive - a cloud-based employee engagement and sustainability education platform - delivers decades of TSI's applied sustainability strategy to a corporate manager's fingertips.

TSI is a certified Santa Monica Green Business, WBE and SBE. CalEPA Climate Leader 2011 | Business of the Year 2012 | Environmental Conservator of the Year 2013.

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