Turnstone Environmental Consultants, Inc.

Turnstone Environmental Consultants, Inc., a Portland, Oregon-based small business, delivers wildlife surveys and ecological monitoring for federal land management agencies, operating exclusively as a prime contractor on federal contracts and IDVs. The company specializes in population surveys for protected and endangered species — principally northern spotted owl, marbled murrelet, red tree vole, amphibian, and mollusk monitoring — across public lands in the Pacific Northwest, with recent expansion to a national footprint through a newly awarded USDA Forest Service vehicle.

Turnstone competes predominantly under total small business set-aside designations on its IDV vehicles and a significant share of its delivery orders, though it also wins full-and-open task orders against those same vehicles. The firm has delivered federal contract work since 2003, with 139 total prime awards recorded in the source data spanning fiscal years 1999 through 2026. The top four customer agencies account for 92% of recent awards by count: the Department of the Interior Bureau of Land Management Oregon-Washington Region (95 awards, $39.3 million combined potential value), the Department of Agriculture Forest Service R6-Pacific Northwest Region (27 awards, $16.3 million), the Department of the Interior Bureau of Land Management National Office (3 awards, $552 thousand), and the Occupational Safety and Health Review Commission (2 awards). However, the customer concentration by dollars is sharply skewed: the USDA Forest Service Washington Office Acquisitions accounts for $50 million (47% of total potential value) through a single June 2026 award — a $50 million Land Management Integrated Resources national BPA running through March 2033, set aside for total small business, spanning project management, inspection, natural resources consulting, data management, and restoration work across the United States.

Turnstone's core federal IDV position centers on two major Bureau of Land Management single-award vehicles: an $18.5 million Indefinite Delivery Contract awarded February 2024 for western Oregon wildlife surveys (northern spotted owl, marbled murrelet, red tree vole) through December 2028, and a closed or nearly closed $514,470 marbled murrelet IDC that ran through February 2025. Against the $18.5 million BLM IDC, Turnstone has executed multiple delivery orders including a $793,768 northern spotted owl survey task order awarded January 2025 (completion September 2026), an $85,715 Klamath Falls northern spotted owl survey awarded March 2026 (completion September 2026), and a $72,077 Butte Falls Field Office northern spotted owl task order awarded March 2026 (completion October 2026). The company also holds positions on five additional parent vehicles, led by Indefinite Delivery Contract 140L4319D0016 (12 task orders, $2 million combined potential value) and Region 6 Professional and Forestry Services 2014–2019 (12 task orders, $546 thousand combined potential value). Turnstone operates as a pure prime footprint — no subcontract work appears in the source data.

Activity has declined year over year from 2022 forward (six awards in 2022, nine in 2023, five in 2024, two in 2025, four in 2026 as of June), though the June 2026 $50 million USDA BPA award substantially reframes the forward pipeline. Five awards with completion dates in the next twenty-four months carry combined potential value of $1.3 million — relatively modest recompete exposure, with the larger near-term focus on executing the newly awarded national BPA. Turnstone's capability framing across the award portfolio reflects NAICS diversity: Other Scientific and Technical Consulting Services (36 awards), Support Activities for Forestry (35 awards), and Surveying and Mapping Services (35 awards), with the dominant PSC categories being Other Environmental Services (50 awards) and Natural Resources/Conservation-Other (36 awards). The firm's geographic concentration has historically been Pacific Northwest (Oregon and Washington), though the June 2026 national BPA signals intention to scale nationally under the Forest Service vehicle.

Turnstone Environmental Consultants offers a complete suite of environmental consulting services to ensure that environmental impacts are recognized and minimized during all phases of a project. We deliver fish and wildlife survey, wetland delineation and environmental permitting services.