O'Rourke

What O'Rourke does

O'Rourke, Inc. is a private environmental, health, and safety (EHS) consulting firm headquartered at 193 Sulphur Springs Road, Owego, New York. Founded in 1994 and led by President Timothy O'Rourke, a Certified Industrial Hygienist (CIH) with 31+ years of experience, the firm delivers three integrated service lines: Industrial Hygiene Services (chemical exposure surveys, noise and ventilation surveys, air sampling, compliance audits, hazardous waste site safety, lead-based paint management, microbial sampling); Asbestos, Mold & Lead Services (asbestos building surveys, project air monitoring, design and remediation oversight, lead surveys, mold assessments); and Indoor Air Quality Services (IAQ investigations, HVAC evaluations, occupant complaint resolution, contaminant sampling, remediation design). All engagements are conducted under the direction of a CIH with NYS-licensed asbestos and mold professionals executing field work.

The firm operates a project-based professional services model, generating revenue through on-call contracts, standing contracts, and project-specific consulting engagements billed on a quote-by-quote basis. Its go-to-market is sales-led and relationship-driven, relying on direct consultation requests, repeat institutional business, and referrals rather than active marketing channels. Clients span healthcare systems (Arnot Health, Excellus, Guthrie Healthcare), educational institutions (Chenango Valley CSD, Elmira College, Ithaca CSD), state and municipal governments (NY State Government, NY State Parks, Ithaca Housing Authority, Town of Owego, Tioga County), industrial and transportation firms (CPP, E-Express), and environmental services companies (FPM Remediations, SERVPRO). Service delivery is regional, concentrated in New York, New Jersey, and Pennsylvania.

On June 6, 2024, O'Rourke divested its construction division to Sessler Environmental Services (SES), an ENR Top 200 environmental services contractor, refocusing the company on its consulting practice. Headcount is reported at 1-10 employees, and no revenue, funding, or institutional investment is disclosed in available sources. The firm does not maintain disclosed AI/ML capabilities, patents, or technology partnerships, operating instead as a credentialed, expertise-driven consultancy.

Name

O'Rourke

Legal name

O'Rourke, Inc.

Website

https://orourkeinc.com

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

1–10 employees

Short description

O'Rourke, Inc. is a private environmental, health, and safety consulting firm founded in 1994 in Owego, New York, delivering industrial hygiene, asbestos/mold/lead, and indoor air quality services to healthcare, education, government, and industrial clients across New York, New Jersey, and Pennsylvania under Certified Industrial Hygienist oversight.

Ownership category

akta.pro rank

Product category

Environmental Health & Safety Consulting

NAICS

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

SIC

Services-Management Consulting Services (8742), Services-Engineering Services (8711)

akta.pro primary industry

Occupational Health & Industrial Hygiene (BPAHAJAD)

akta.pro secondary industries

Asbestos/Lead/Mold Inspection, Testing & Consulting (BPALALAD), Exposure Control & Program Management (IH Plans, Controls, Training) (EUAHAGAI), Waste & Hazardous Materials Management (incl. HazMat) (BPAHAJAK)

Keywords

• Industrial hygiene consulting
• Asbestos mold lead services
• Indoor air quality assessment
• Environmental health safety consulting
• Hazardous materials management

Headquarters

HQ city

Owego

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Environmental Consulting Services: Professional consulting services for environmental, health, and safety issues. Revenue is generated through project-based engagements, on-call contracts, standing contracts, and consulting fees. Services include industrial hygiene assessments, asbestos/mold/lead management, and indoor air quality investigations.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

O'Rourke, Inc. provides environmental, health, and safety consulting services across three integrated service lines: industrial hygiene (chemical exposure, noise, ventilation, air sampling, compliance audits), asbestos/mold/lead management (building surveys, project air monitoring, remediation design), and indoor air quality investigations (HVAC evaluations, microbial sampling, occupant complaint evaluations). Services are delivered through project-based engagements, on-call contracts, and standing consulting arrangements to industrial, institutional, governmental, and commercial clients in New York, New Jersey, and Pennsylvania, with all work performed under the direction of a Certified Industrial Hygienist.

Product overview

O'Rourke Inc is an environmental, health, and safety consulting firm founded in 1994 that operates as a single-service-consulting model rather than a software platform. The company offers three integrated consulting service lines: Industrial Hygiene Services (chemical exposure surveys, noise surveys, ventilation design, air sampling, compliance audits), Asbestos, Mold & Lead Services (asbestos building surveys, project monitoring, lead surveys, mold assessments), and Indoor Air Quality Services (IAQ investigations, HVAC evaluations, air sampling, occupant complaint evaluations). These services are provided to industrial, institutional, commercial, municipal, and governmental clients across New York, New Jersey, and Pennsylvania. All work is performed under the direction of a Certified Industrial Hygienist.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Performed hundreds of building and pre-demolition asbestos building surveys
• +2 more outcomes

Named customers15 records

Segments6 records

Ideal customer profiles5 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.

• Sessler Environmental ServicesmajorStrategic or Co-development Partner · 6 June 2024On June 6, 2024, Sessler Environmental Services (SES) acquired the construction division of O'Rourke Incorporated. SES and O'Rourke have collaborated on numerous projects in the southern tier and central New York regions, leading to this alignment and acquisition. SES is headquartered in Macedon, NY with a branch location in Oriskany, NY, and this acquisition adds a branch location in Owego, NY. SES is part of Sessler Companies, a generational family owned and operated enterprise since 1958.

Scale indicators3 records

Recent moves3 records

Broad incumbents

• AECOM: AECOM is a global infrastructure consulting firm with a large environmental services practice covering industrial hygiene, building sciences, and environmental compliance. Provides overlapping capabilities at a vastly larger scale across global markets.
• Tetra Tech: Tetra Tech is a global consulting and engineering firm providing environmental services, industrial hygiene, and compliance support across energy, water, and infrastructure sectors. Overlaps with O'Rourke in environmental consulting and industrial hygiene but operates at vastly greater scale and breadth.
• TRC Companies: TRC Companies is a large, publicly traded environmental, engineering, and construction management firm offering industrial hygiene, air quality, asbestos, and EHS services nationwide. Provides overlapping capabilities but as part of a much broader portfolio; represents the large incumbent alternative for institutional clients in the Northeast.

Direct peers

• Partner Engineering and Science: Partner Engineering and Science offers EHS consulting, industrial hygiene, building assessments, and indoor air quality services to commercial real estate, institutional, and industrial clients. Comparable in service lines, credentials required, and project-based consulting delivery model.
• Haley & Aldrich: Haley & Aldrich is a specialized environmental and geotechnical consulting firm providing industrial hygiene, building science, and compliance services. Comparable in technical specialization, CIH-led delivery model, and institutional client base, though at significantly larger scale.
• Hillmann Consulting: Hillmann Consulting provides environmental, health, safety, and building science services including asbestos, mold, lead, IAQ, and industrial hygiene. Directly comparable service portfolio and regulatory consulting model, though operating at larger scale across the Eastern U.S.
• Roux Associates: Roux Associates is a mid-sized environmental consulting and remediation firm with strong Northeast U.S. presence, providing industrial hygiene, indoor air quality, asbestos/lead management, and site assessment services. Comparable in service mix, regulatory orientation, and client base to O'Rourke.
• Sessler Environmental Services: Sessler Environmental Services acquired O'Rourke's construction division in June 2024 and operates asbestos abatement, remediation, industrial cleaning, and demolition services across central and upstate New York. Directly comparable as a regional environmental services firm serving the same NY/NJ/PA customer base with overlapping hazardous-materials expertise.

Regional players

• LaBella Associates: LaBella Associates is an upstate New York-headquartered engineering and environmental services firm serving municipalities, schools, and industrial clients across NY and the Northeast. Comparable in regional footprint, client verticals (schools/municipalities), and hazardous materials/environmental assessment work.
• BEC Environmental Solutions: BEC Environmental Solutions is a Midwest-based EHS and hazardous materials consulting firm serving industrial, institutional, and government clients with industrial hygiene, asbestos, and IAQ services. Comparable in service portfolio and compliance-driven consulting model, but operates in a different geography than O'Rourke.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/orourke-inc-

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 O'Rourke