Dalton, Olmsted & Fuglevand

What Dalton, Olmsted & Fuglevand does

Dalton, Olmsted & Fuglevand, Inc. (DOF, also marketed as DOF Northwest) is a privately held Pacific Northwest environmental consulting firm founded in 1989 and headquartered in Poulsbo, Washington. The firm delivers hands-on, senior-level consulting for contaminated marine and upland environments, organized around three service lines: Marine Services (sediment remediation, dredging design, waterway engineering, and aquatic habitat restoration on EPA mega-projects), Upland Services (soil and groundwater investigation and remediation, conceptual site modeling, and remedial design/construction oversight), and Stormwater Services (NPDES permitting, SWPPP development, sampling, and treatment system design). Supporting offerings include Federal/State cleanup program management under CERCLA, MTCA, and RCRA; litigation support and expert testimony; long-term monitoring; and site assessment (Phase I/II ESA).

The firm's underlying technology consists of proprietary engineering methodologies rather than software products — most notably V-SAM (Vibracore Sediment Acquisition Monitoring), developed by Principal Engineer Teal Dreher to improve vertical delineation of contaminated sediment during vibracore sampling — combined with three decades of accumulated project knowledge across CERCLA and state-lead sites. Core competencies are delivered by approximately 30 senior engineers, geologists, and design professionals with specialized credentials (PE, LG, LHG) and advanced degrees from institutions including Drexel, UC Berkeley, Colorado, and the University of Washington. The firm's value proposition rests on principal-level engagement on every project, recognized expertise in sediment characterization and remedial action design, and the ability to navigate multi-agency regulatory frameworks (EPA Region 10, Washington Department of Ecology, Oregon DEQ, USACE).

DOF generates revenue on a project-based professional services model through direct client engagement with government agencies (EPA, USACE, state DEQs, ports such as Port of Seattle and Port of Stockton, and municipalities including the City of Anacortes and Salt Lake City Corporation) and private industrial clients (Boeing, Owens-Brockway Glass Container, Arkema, Puget Sound Energy, Clean Earth/Stericycle). Pricing is determined by scope of work rather than published rate cards, and business development relies on regulatory relationships, conference presence (WEDA, Battelle), peer-reviewed publication, competitive bidding on government contracts, and client referrals. The firm has no external funding rounds, no parent company, and operates from five offices in Washington and Oregon.

Name

Dalton, Olmsted & Fuglevand

Legal name

Dalton, Olmsted & Fuglevand, Inc.

Website

https://dofnw.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

11–50 employees

Short description

Dalton, Olmsted & Fuglevand is a Pacific Northwest environmental consulting firm founded in 1989 that provides senior-level contaminated sediment remediation, dredging design, aquatic habitat restoration, and stormwater compliance services to government agencies (EPA, USACE, ports, state DEQs) and industrial clients.

Ownership category

akta.pro rank

Product category

Environmental Consulting Services

NAICS

Remediation Services (562910), Environmental Consulting Services (54162), Waste Treatment and Disposal (56221)

SIC

Hazardous Waste Management (4955)

akta.pro primary industry

Groundwater Extraction, Treatment & Discharge (Pump-and-Treat, reinjection) (BPALAKAF)

akta.pro secondary industries

Ex-Situ Treatment & Soil Washing / Stabilization (BPALAKAE), Landfill/Impoundment Hydrogeology (Liners, Leachate, Seepage Studies) (EUAHAFAH)

Keywords

• Environmental remediation consulting
• Sediment remediation services
• Marine dredging engineering
• Stormwater compliance services
• Aquatic habitat restoration

Headquarters

HQ city

Poulsbo

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Environmental Consulting Services: Professional consulting services for contaminated site assessment, investigation, remedial design, construction oversight, and compliance support for marine and upland environmental remediation projects. Revenue is generated through project-based consulting engagements with government agencies and private sector clients.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Dalton, Olmsted & Fuglevand is a Pacific Northwest environmental engineering and consulting firm that delivers professional services for contaminated marine and upland environments. Its work spans sediment characterization, dredging design, sediment capping, aquatic habitat restoration, upland soil and groundwater investigation/remediation, and industrial stormwater (NPDES) compliance, with senior-level experts engaged directly on every project.

Product overview

Dalton, Olmsted & Fuglevand (DOF Northwest) is an environmental consulting firm offering a unified suite of professional services rather than a software product. The core offerings consist of three service lines: Marine Services (sediment remediation, dredging, and habitat restoration), Upland Services (soil/groundwater remediation and site investigation), and Stormwater Services (compliance and treatment). These are supported by specialized capabilities including Federal/State Cleanup project management, Field Investigation and Conceptual Site Modeling, Litigation Support, Long-term Monitoring, Remedial Design/Construction/Operation, Site Assessment, and Stormwater Compliance. DOF serves clients across the Pacific Northwest and nationwide on complex sediment and upland remediation projects regulated under CERCLA, MTCA, RCRA, and other federal and state frameworks.

Differentiator

Problem solved

Functional benefit

Products and services

• Marine Services Sediment remediation, dredging and waterway engineering, and aquatic habitat restoration services for contaminated marine environments, including EPA Superfund mega-projects for government agencies and industrial clients.
• Stormwater Services Stormwater compliance, NPDES permitting, SWPPP development, environmental sampling, training, and stormwater treatment system design and operations for industrial and government clients.
• Federal/State Cleanup Project Management Management of cleanup projects under EPA and state Department of Ecology lead, including work plans, sampling, permitting, and long-term monitoring for federal and state cleanup programs.
• Remedial Design, Construction + Operation Pre-design evaluation, design studies, remedial design, and remedial action implementation including construction oversight and operations & maintenance (O&M) for contaminated sites.
• Site Assessment + Technical Support Environmental Site Assessments (Phase 1 and Phase 2), remedial investigations, forensic contaminant source identification, and compliance profiling for property transactions and regulatory submissions.
• Litigation Support Technical expert services and testimony for stormwater, upland, aquatic remediation, and navigation dredging projects in federal and state courts.
• Upland Services Soil and groundwater remediation, field investigation and conceptual site modeling, site evaluation, technical support, and remedial design and construction services for contaminated upland environments.

Quantifiable outcome

• 400,000+ cubic yards of PCB-impacted sediment dredged during Head of Hylebos Superfund project
• +3 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators5 records

Recent moves4 records

Expansion highlights4 records

Regional players

• Landau Associates: Pacific Northwest environmental and geotechnical consulting firm with comparable contaminated site investigation, remediation, and stormwater practices for similar public and private clients.
• Aspect Consulting: Pacific Northwest-based earth and environmental consulting firm with comparable hydrogeology, contaminated site assessment, and remedial design practices serving similar municipal and private clients.
• Hart Crowser (Haley & Aldrich): PNW-rooted geotechnical and environmental consulting firm now part of Haley & Aldrich, with overlapping contaminated site, sediment, and waterfront development work for the same regional client base.

Broad incumbents

• Brown and Caldwell: Environmental engineering and consulting firm focused on water, wastewater, and remediation that overlaps with DOF's stormwater compliance, NPDES, and upland remediation practices.
• Tetra Tech: Global environmental engineering consulting leader with a major sediment remediation and federal cleanup practice. Competes with DOF on Superfund and navigation dredging work and serves many of the same agency clients at much larger scale.
• AECOM: Large diversified engineering and environmental services firm with a substantial remediation, sediment, and water practice that competes on federal and municipal cleanup contracts nationwide.
• Arcadis: Global design and environmental consulting firm with significant sediment remediation, industrial stormwater, and Superfund practices that compete with DOF's core service lines.
• WSP (including Golder legacy): Global professional services firm with deep environmental consulting and remediation capabilities inherited from Golder, competing for federal cleanup and PNW waterfront work.

Direct peers

• Anchor QEA: Pacific Northwest-based environmental and engineering consulting firm with a parallel sediment remediation, contaminated site, and waterfront redevelopment practice. Closest direct peer given overlapping marine sediment, upland remediation, and PNW public-sector client base.
• Windward Environmental LLC: Specialist sediment remediation and environmental engineering consultancy focused on contaminated sediment sites, capping, and dredging. Directly comparable niche expertise and project types to DOF's marine service line.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Dalton, Olmsted & Fuglevand