Grette Associates is an environmental consulting firm that provides comprehensive natural resources support for construction, permitting, and planning projects throughout the Pacific Northwest.

We specialize in helping public- and private-sector clients understand and comply with environmental regulations in Washington and Oregon.  Our work supports in-water construction and remediation actions in Puget Sound, the Columbia River, and other waterbodies across the region, as well as land-use planning activities associated with wetlands and other critical habitats.  With demonstrated capabilities for addressing complex biological issues in an ever-evolving political landscape, we excel at solving project-specific challenges related to threatened and endangered species, mitigation planning, and habitat restoration.


Our Services

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