What INSITU CONTRACTORS INC. does

Insitu Contractors Inc. is a privately held, 100% Canadian-owned groundwater control specialist founded in 1994 by Harry Oussoren and headquartered in Guelph, Ontario, with a second office in Orillia opened in 2021. The company provides an "All-In-One" suite of construction dewatering, environmental remediation, exploration and environmental drilling, and engineering services spanning project investigation, design, installation, operation, and post-construction decommissioning. Insitu has completed over 1,400 groundwater control projects across Ontario with operational reach extending to both coasts of Canada and into the United States.

The firm deploys four primary pump-based dewatering systems — Deepwell, Eductor, Wellpoint, and Sump Pumping — alongside proprietary sonic drilling rigs that advance through challenging geological formations at twice the rate of conventional methods (and 4-5x faster in heavy tills, heaving sands, coarse gravels, and cobbles). Insitu designs and manufactures its own vacuum wellpoint pumps and peripheral equipment and operates a telemetric monitoring system (developed with Smartrek) that delivers 24/7 real-time data on vacuum levels, pressure, flow, and water levels. Water treatment systems can handle up to 3,750 liters per minute. The technical team includes in-house Professional Engineers with 20+ years of experience, Certified Engineering Technologists, Environmental Specialists, and 15+ licensed well technicians, supported by COR certification under IHSA since August 2016 and multiple Ontario Ministry of the Environment Environmental Compliance Approvals.

The business model is project-based professional services revenue derived from large Ontario infrastructure tenders (TTC Sheppard Subway, Eglinton Crosstown LRT, Keswick WWTP), highrise development, environmental remediation, mining and exploration drilling, and smaller residential and petrochemical engagements. Go-to-market is direct, with no formal sales staff — customers engage technical specialists via phone, email, website contact forms, or through technical seminars and Lunch-and-Learn sessions. Pricing is fully bespoke and quote-based, with no published rates. Capital intensity is meaningful: a fleet of 6x6 truck-mounted and track-mounted rigs, dual rotary and sonic drills, custom Deere Drills, track loaders, and specialized pumping equipment underpins service delivery, while no external funding rounds have been disclosed, consistent with founder/family ownership.

Name

INSITU CONTRACTORS INC.

Legal name

Insitu Contractors Inc.

Website

https://insitucontractors.com

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

11–50 employees

Short description

Insitu Contractors Inc. is a privately held Canadian groundwater control specialist founded in 1994, providing construction dewatering, environmental remediation, drilling, and engineering services to heavy civil, highrise, transportation infrastructure, mining, and industrial clients across Ontario and the U.S.

Ownership category

akta.pro rank

Product category

Construction Dewatering Services

NAICS

Water and Sewer Line and Related Structures Construction (23711), Site Preparation Contractors (23891), Pump and Compressor Manufacturing (33391)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Heavy Construction Other Than Bldg Const - Contractors (1600), Pumps & Pumping Equipment (3561)

akta.pro primary industry

Dewatering & Groundwater Control (Wellpoints, Deep Wells, Cutoff Systems) (IMAFAOAF)

akta.pro secondary industries

Dewatering & Temporary Groundwater Control (IMAFAKAH), Dewatering, Groundwater Control & Construction Hydrogeology (EUAHAFAG), Water, Wastewater & Hydraulics Engineering Consulting (BPAHAIAD)

Keywords

• Construction dewatering services
• Groundwater control systems
• Environmental drilling services
• Environmental remediation services
• Sonic drilling services

Headquarters

HQ city

Guelph

HQ country

Canada

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction Dewatering Services: Project-based dewatering services including installation, operation, and decommissioning of groundwater control systems. All-In-One solutions include engineering design, equipment installation, maintenance visits, and all required equipment with no hidden costs.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

INSITU Contractors is a groundwater control specialist providing an All-In-One solution covering engineering consultancy, design, installation, operation, and decommissioning of construction dewatering systems. The company delivers project-based services using four pump-based dewatering methods (deepwell, eductor, wellpoint, sump pumping) combined with sonic drilling for environmental and exploration drilling, plus environmental remediation and water treatment services.

Product overview

INSITU Contractors is a groundwater control specialist offering an All-In-One solution for construction dewatering and environmental services. The company provides a unified portfolio combining Construction Dewatering (with four pump system types: Deepwell, Eductor, Wellpoint, and Sump Pumping), Engineering Services (Pumping Tests, Design & Consultancy, Instrumentation & Monitoring, Peer Review, and Telemetric Monitoring), Environmental Remediation (water treatment and equipment), Exploration Drilling, and Environmental Drilling (Sonic drilling). These services work together to deliver comprehensive groundwater management from engineering consultancy to complete done-for-you dewatering services.

Differentiator

Problem solved

Functional benefit

Products and services

• Construction Dewatering Groundwater control services for construction sites, offering four pump-based dewatering systems: Deepwell Systems for large volumes, Eductor Systems for deep excavations with low permeability soil, Wellpoint Systems for shallow excavation up to 6 meters depth, and Sump Pumping for low permeable soils and bedrock. Designed for contractors and infrastructure developers.
• Engineering Services Professional engineering services for groundwater control projects including Pumping Tests, Design & Consultancy, Instrumentation & Monitoring, Peer Review, and Telemetric Monitoring. Used by construction contractors, developers, and infrastructure clients to mitigate groundwater-related project risks.
• Environmental Remediation Environmental treatment services using recovery wells, product recovery pumps, oil/water separators, dual-phase vacuum extraction, vapor extraction systems, biological treatment, and carbon treatment for contaminated site remediation. Serves environmental consultants, regulators, and industrial property owners.
• Exploration Drilling

Quantifiable outcome

• Reduced a proposed 45 well eductor system to 12 deep wells at Eglinton LRT Launch Shaft 2, saving the client several weeks on construction schedule and lowering power consumption by 75%
• +3 more outcomes

Named customers5 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• SmartrekcoreTechnology or IntegrationINSITU partnered with Smartrek to develop a telemetric monitoring and alarm system for 24/7 real-time monitoring of dewatering equipment including vacuum levels, pressure levels, flow meter information, and water levels.

Scale indicators6 records

Recent moves10 records

Expansion highlights5 records

Broad incumbents

• Stantec: Stantec is a major Canadian-headquartered engineering, environmental, and water consultancy offering hydrogeology and dewatering design services that overlap with INSITU's engineering services portfolio on public and private infrastructure work.
• Hayward Baker (Keller): Hayward Baker is a North American ground improvement and groundwater control specialist within Keller Group, offering dewatering and related geotechnical services on transit, commercial, and industrial projects comparable to INSITU's core work.
• Schnabel Foundation Company: Schnabel is a U.S. geotechnical contractor offering earth retention, underpinning, and groundwater control services, competing with INSITU on dewatering and shoring for infrastructure and building projects.
• Keller Group plc: Keller Group is a global ground engineering company with a large dewatering and ground improvement business (including Hayward Baker), serving as a much larger, multi-product incumbent comparable to INSITU in dewatering for infrastructure and commercial projects.
• Layne (a Granite Construction company): Layne, now part of Granite Construction, is a major North American water well, dewatering, and ground improvement provider offering pump installation and groundwater management services comparable to INSITU's pump-based dewatering portfolio.
• WSP Global (incl. legacy Golder): WSP, with the former Golder Associates, is a global engineering consultancy with strong hydrogeology and dewatering design practices that compete with INSITU's engineering services on major transit and environmental projects.

Direct peers

• Moretrench: Moretrench is a U.S.-based specialty groundwater control and geotechnical construction contractor offering dewatering, ground freezing, and earth retention services — a close functional analogue to INSITU's construction dewatering and engineering services in the North American market.
• Bencor Global (formerly AW Cook Construction): Bencor Global specializes in slurry walls, deep foundations, and groundwater control for heavy civil and tunneling projects, directly competing with INSITU on transit and infrastructure dewatering scopes in North America.

Others

• Boart Longyear: Boart Longyear is a global drilling services and equipment provider for mineral exploration, geotechnical, and environmental drilling — adjacent to INSITU's sonic drilling and exploration drilling service lines rather than a direct bidder on dewatering contracts.

Regional players

• Paterson Group: Paterson Group is a Canadian geotechnical, environmental, and materials engineering consultancy with groundwater and dewatering expertise, often working alongside or competing with INSITU on Ontario-based infrastructure projects.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/insitu-contractors-inc-

Compliance2 records

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 INSITU CONTRACTORS INC.