Name

Olson Ecological Solutions

Legal name

Olson Ecological Solutions

Website

https://olsonecosolutions.com

Company type

Private

Operating status

Acquired

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Ecological Consulting Services

NAICS

Environmental Consulting Services (54162), Environmental Consulting Services (541620)

SIC

Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Wetlands & Waters of the U.S. Delineation / Riparian Assessments (EUAHAHAC)

akta.pro secondary industries

Ecological Restoration Planning & Monitoring (Habitat, Wetland, Stream) (EUAHAHAF), Brownfield Redevelopment Due Diligence & Grant Support (EUAHAEAD), Site Assessment, Planning & Permitting (Reforestation Plans) (AFAMACAC)

Keywords

• Wetland delineation services
• Ecological consulting services
• Habitat restoration services
• Watershed planning services
• Mitigation banking services

Headquarters

HQ city

Not specified

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Ecological Consulting Services: Professional consulting fees for wetland delineations, jurisdictional determinations, threatened and endangered species surveys, and environmental assessments. Revenue generated through project-based engagements with developers, government agencies, and property owners.
2. Mitigation Banking Services: Long-term mitigation banking services including credit generation, monitoring, and performance standard compliance for projects like Bass Creek Wetland Mitigation Bank and Illinois Tollway mitigation projects.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels3 records

Core offering

Olson Ecological Solutions is an ecological consulting firm providing wetland delineation, jurisdictional wetland determination, threatened and endangered species surveys, stream and wetland mitigation banking, EPA Section 319 watershed planning, and stream and habitat restoration services. Engagements are project-based and delivered to developers, municipalities, and government agencies across Illinois and the Upper Midwest, with all staff and services now operating under A3 Environmental Consultants following the July 1, 2025 merger.

Product overview

Olson Ecological Solutions is a professional ecological consulting firm that joined A3 Environmental Consultants on July 1, 2025. The company offers a portfolio of environmental assessment and ecological restoration services focused on wetlands, streams, and watersheds across the Upper Midwest. The core service offerings include Wetland Delineation, Jurisdictional Wetland Determination, Wetland Screen, Threatened & Endangered Species Surveys, Stream & Wetland Mitigation Banking, Watershed Planning & Nonpoint-Source (Section 319) Plans, and Stream & Habitat Restoration. These services are delivered by a team of ecologists, wetland delineators, and restoration technicians, and are now integrated with A3E's Phase I/II ESA, remediation, and due-diligence services under one consolidated environmental consulting practice.

Differentiator

Problem solved

Functional benefit

Products and services

• Wetland Delineation Professional field investigation and mapping of wetland boundaries performed according to the 1987 Corps of Engineers Wetland Delineation Manual and regional supplements. Delivered for developers, municipalities, and government agencies in Illinois and the Upper Midwest needing regulatory wetland boundary determinations for permitting and due diligence.
• Jurisdictional Wetland Determination Official jurisdictional determination of wetlands by the U.S. Army Corps of Engineers, establishing regulatory boundaries and permitting requirements for client projects. Used by developers and government agencies to confirm regulatory status of wetlands on or near project sites.
• Wetland Screen Preliminary screening assessment designed to identify potential wetlands early in project planning in order to avoid costly delays during due diligence. Targeted at developers and property owners evaluating sites before committing to transactions or detailed environmental studies.
• Threatened and Endangered Species Surveys Field surveys to identify the presence of protected species and their habitats as required for regulatory compliance and project permitting. Provided to developers, municipalities, and government agencies across Illinois and the Upper Midwest.
• Stream and Wetland Mitigation Banking Development and long-term management of mitigation banks that provide compensatory mitigation credits for unavoidable impacts to wetlands and streams, including credit generation, monitoring, and performance standards compliance. Includes projects such as the Bass Creek Wetland Mitigation Bank and Illinois Tollway mitigation work.
• Watershed Planning and Nonpoint-Source (Section 319) Plans Comprehensive watershed-scale planning documents prepared under EPA Section 319 to address nonpoint-source pollution, supporting grant applications and regulatory programs. Delivered to municipalities and watershed stakeholders across Northern Illinois and the Upper Midwest.
• Stream and Habitat Restoration Ecological restoration of degraded streams and riparian habitats, including streambank stabilization, naturalization of drainage channels, invasive species control, and establishment of native vegetation. Delivered to municipalities, counties, and government agencies such as Downers Grove, Belvidere, and Cook County.

Quantifiable outcome

• 23 seasonal technicians deployed for restoration work in 2025
• +1 more outcomes

Named customers5 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

Feature4 records

Partnerships

One partnership is on record.

• A3 Environmental Consultants (A3E)coreStrategic or Co-development Partner · 1 July 2025Olson Ecological Solutions officially joined A3 Environmental Consultants on July 1, 2025. Every OES ecologist, wetland delineator, and restoration technician transferred to A3E, bringing expertise in wetland delineation, stream and wetland mitigation banking, watershed planning, and habitat restoration. The merger expanded A3E's ecological services capabilities while providing OES clients with access to A3E's Phase I/II ESA, remediation, and due-diligence services.

Scale indicators3 records

Recent moves3 records

Expansion highlights5 records

Direct peers

• A3 Environmental Consultants: OES's parent company and acquirer; an Illinois-based environmental consulting firm offering Phase I/II ESA, remediation, due diligence, and ecological services including wetland delineation across the Upper Midwest, making it the most direct operational peer now that OES is fully integrated.
• V3 Companies: Illinois-based ecological, environmental, and civil engineering consulting firm with a substantial wetland delineation, mitigation, and natural resource practice serving developers and municipalities in the Midwest — directly comparable in services and geography.
• SWCA Environmental Consultants: National environmental consulting firm with deep ecological services including wetland delineation, threatened and endangered species surveys, mitigation banking, and habitat restoration, comparable in technical service mix though broader geographically.
• Environmental Science Associates (ESA): Employee-owned environmental consulting firm specializing in biological resources, wetland delineation, habitat restoration, and regulatory compliance for development and infrastructure clients.

Broad incumbents

• Tetra Tech: Large global environmental and engineering consulting firm offering wetland delineation, ecological restoration, watershed planning, and environmental compliance as part of a much broader services portfolio, competing for many of the same government and developer contracts.
• Stantec: Global design and environmental consulting firm with established ecological services, wetland mitigation, and watershed planning practices serving transportation agencies and developers across North America.
• Arcadis: Global design and consultancy with a sizable environmental and ecology practice serving infrastructure, real estate, and government clients, including wetland and habitat restoration services.
• TRC Companies: National environmental consulting and engineering firm providing ecological assessments, wetland delineation, mitigation services, and environmental due diligence to government, real estate, and infrastructure clients.
• HDR Inc: Engineering and environmental consulting firm with strong water and ecological practices, including wetland mitigation, stream restoration, and watershed planning for transportation and public-sector clients.

Regional players

• Hey and Associates: Midwest-focused ecological and water resources consulting firm providing wetland delineation, mitigation banking, stream restoration, and watershed planning services similar to OES, though historically more concentrated in Ohio.

Market position

Strengths4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/olson-eco-solutions

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Olson Ecological Solutions