Natural Resource Scientists


A memorial service for Matt Heddin will be held on Saturday September 12th 1:00 p.m. at First Christian Church (701 Franklin St. SE, Olympia WA) with a reception to follow. In lieu of flowers, family requests donations be made to Jenny and Henry’s GoFundMe account.

Grette Associates is a professional consulting firm consisting of experienced scientists who provide natural resource services to public and private clients throughout the Northwest.

Grette Environmental Services

We specialize in freshwater, estuarine and marine sciences and research, land use planning, and strategic permitting assistance for waterfront facilities, port developments, habitat design, and restoration actions. We are well-known and respected for the cost-effective resolve of aquatic habitat issues on a full range of public and private sector projects, and for developing innovative mitigation solutions to satisfy state, federal, and local laws and regulations.

Strong client advocacy, effective project management, recognized scientific and technical expertise, effective communications, and long-standing professional relationships form the foundation of our approach to business. This has enabled us to develop and maintain client respect as well as excellent working relationships among tribal governments, policy makers and regulators, community groups and businesses as we help to solve complex problems. As our firm has represented a diverse range of stakeholders, we have the multi-disciplinary experience and insight of the applicant, regulatory agency, and bank developer. Our offices are located in Wenatchee and Tacoma, Washington.