Technicore Underground

What Technicore Underground does

Technicore Underground is a vertically integrated Canadian tunnelling contractor and tunnel boring machine (TBM) manufacturer headquartered in Newmarket, Ontario. Founded by Tony DiMillo in 1996, the company operates through five wholly-owned subsidiaries — Technicore Underground Inc. (heavy civil construction), Technicore Underground Corp. (TBM design, manufacturing and maintenance), Ewing Fabricators 1845 Inc. (steel and precast fabrication, acquired 2012), TecMix Inc. (specialty concrete ready-mix), and Underground Support Systems Inc. (robotic steel tunnel support products). The group has constructed over 100,000 metres of tunnels across diameters from 400mm to four metres, and owns more than 30 TBMs, EPBTBMs, MTBMs, TDS machines, freeze plants, and rolling stock. Core services include TBM tunnelling (600mm to 6.5m diameter), microtunnelling, shaft construction, design-build construction, ground freezing, and equipment manufacturing, with proprietary technologies including the Controlled Foam Injection (CFI) technique and a patented Compressible Grout (CA2975614A1).

The company serves government and municipal infrastructure owners across Ontario and broader Canada — including Toronto Pearson International Airport, Metrolinx (Eglinton Crosstown LRT), the City of Toronto (Billy Bishop Pedestrian Tunnel), Hydro One, and regional authorities (Hanlan Feedermain, Peel Region, West Trunk Sewer). All named customers are public-sector entities; project acquisition is driven by competitive bidding on public infrastructure tenders and direct negotiation with municipal and transit clients. Revenue is generated through a mix of professional services (heavy civil tunnelling contracts on multi-year terms) and hardware sales (manufactured TBMs, steel pipe, precast tunnel liners, specialty concrete mixes, and robotic tunnel support products distributed across North America).

The business model is capital-intensive and relationship-driven: Technicore self-performs nearly all work using in-house equipment, patents, and a workforce of more than 250 site and office personnel across two manufacturing plants (45,000 sq. ft. in Newmarket and 60,000 sq. ft. in Toronto). Bonding capacity exceeds $500M CAD, enabling pursuit of large-scale contracts. The group holds IHSA COR safety certification and operates with no external PE/VC capital, remaining family-owned under Tony DiMillo's leadership.

Name

Technicore Underground

Legal name

Technicore Underground Inc.

Website

https://technicore.ca

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

251–500 employees

Short description

Technicore Underground is a vertically integrated Canadian tunnelling contractor and TBM manufacturer that self-performs heavy civil underground construction — water, sewer, transit, and utility tunnels — for Ontario municipal and government clients using proprietary equipment and patented materials.

Ownership category

akta.pro rank

Product category

Heavy Civil Underground Construction and Tunnelling Services

NAICS

Water and Sewer Line and Related Structures Construction (237110), Power and Communication Line and Related Structures Construction (237130), Heavy and Civil Engineering Construction (237)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Construction Machinery & Equip (3531)

akta.pro primary industry

Tunnels & Underground Rail Civil Construction (IMAFAFAE)

akta.pro secondary industries

Tunnel Construction (Road, Rail, Utility) (IMAFAEAC), Tunneling & Underground Geotechnics (Ground Treatment, Support, NATM/SEM Interfaces) (IMAFAOAJ), Stations, Platforms & Depot/Yard Construction (IMAFAFAD)

Keywords

• Tunnel construction services
• Underground infrastructure
• Microtunneling services
• Tunnel boring machines
• Heavy civil construction

Headquarters

HQ city

Newmarket

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, Supply Chain

Revenue model

1. Heavy Civil Underground Construction Services: Tunnelling construction and construction services for rail, transit, pedestrian tunnels, water main, sewers, and hydro and utility tunnels. Projects are typically large-scale infrastructure contracts with government and municipal clients.
2. TBM and Mining Equipment Manufacturing: Manufacture and sale of tunnel boring machines and mining equipment through Technicore Underground Corp. Responsible for maintenance, servicing and refurbishing of capital equipment for the Technicore Group.
3. Steel and Precast Products Manufacturing: Ewing Fabricators 1845 Inc. manufactures heavy steel and precast products including steel transmission pipe for potable water, natural gas, oil, concrete pressure pipe, and precast tunnel liners and support systems.
4. Concrete Ready-Mix (TecMix): Proprietary cellular grout and specialty concrete mixes for civil works through TecMix Inc., an integrated manufacturer of concrete ready-mix.
5. Robotically Fabricated Steel Tunnel Support Products: Underground Support Systems Inc. distributes robotically manufactured tunnel support systems to the North American market.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

Technicore Underground is a vertically integrated heavy civil tunnelling contractor that self-performs nearly all work on underground infrastructure projects. The company designs and manufactures its own tunnel boring machines (TBMs), microtunnelling equipment, steel pipe, precast liners, and specialty concrete mixes. It builds rail, transit, pedestrian, water main, sewer, and hydro/utility tunnels for government, municipal, and transit authority clients across Ontario, using proprietary technologies including Controlled Foam Injection (CFI) and patented compressible grout.

Product overview

Technicore Underground is a vertically integrated group of tunneling companies offering a comprehensive portfolio of underground construction services and equipment manufacturing. The group operates through four main subsidiaries: Technicore Underground Inc. (heavy civil underground construction with over $500 million in bonding facilities), Technicore Underground Corp. (equipment design, manufacturing and maintenance), Ewing Fabricators 1845 Inc. (heavy steel and precast product fabrication), and Underground Support Systems Inc. (robotic steel tunnel support products). Core services include TBM tunneling (600mm to 6.5m diameter), microtunneling (600mm to 2.0m diameter), shaft construction, design-build construction, and ground freezing. The company manufactures its own tunnel boring machines including EPBTBM, MTBM, TDS, and TDM models with proprietary technologies such as Controlled Foam Injection (CFI) and compressible grout. Additional manufacturing capabilities include sewer and water pipe, specialty concrete mixes (TecMix), precast concrete segments, and on-site robotic pipe welding. The group also provides haulage services and operates manufacturing facilities totaling over 65,000 sq. ft. across Newmarket and Toronto locations.

Differentiator

Problem solved

Functional benefit

Products and services

• TBM Tunneling Services Large-scale tunnel boring machine tunneling services for projects ranging from 600mm to 6.5 meter diameter tunnels, covering water main, storm and sanitary sewers, rail and transit, hydro and utility tunnels, and pedestrian tunnels. Targeted at municipal, government, transit, and utility clients.
• Microtunneling Services Microtunneling services using remotely controlled laser-guided equipment from 600mm to 2.0 meter diameter for precise excavation and pipe installation in urban environments. Targeted at municipal water and sewer clients.
• Shaft Construction Services

Quantifiable outcome

• Over 100,000 metres of tunnels constructed ranging from 400mm to 4 metre diameter
• +2 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators6 records

Recent moves10 records

Expansion highlights5 records

Direct peers

• Strabag: European-based global tunneling and infrastructure contractor with major North American projects — directly comparable on TBM-driven tunneling for transit and water, but operates at significantly larger scale across multiple geographies.
• McNally Construction: Canadian tunneling and underground construction contractor focused on water/sewer, transit, and utility projects in Ontario — directly comparable to Technicore on geography, customer base (municipal governments), and core trenchless construction services.
• Southland Mole: North American microtunnelling and trenchless construction specialist — directly comparable on laser-guided microtunnelling for water/sewer projects, though smaller scale and primarily U.S. footprint.
• Dragados: International tunnelling specialist with significant North American presence on transit and water tunnels — directly comparable core activity (TBM tunneling, microtunnelling) though larger scale and headquartered in Spain.

Broad incumbents

• EllisDon: Major Canadian general contractor with civil infrastructure and tunneling capabilities — competes on large Ontario infrastructure tenders and is comparable in scale and government client base, though broader in scope than tunnelling.
• Aecon Group: Canada's largest publicly traded construction and infrastructure contractor with significant tunneling and underground utilities work — broader incumbent serving similar Ontario municipal/transit clients with overlapping but more diversified portfolio.
• PCL Construction: Major North American general contractor with civil infrastructure and tunneling experience — competes with Technicore on large municipal and transit projects, though much broader in scope and scale.
• Pomerleau: Large Canadian construction firm with civil infrastructure and underground construction capabilities across Eastern Canada — comparable customer base (provincial/municipal) and pursuit of transit, water, and utility tunneling work.
• Graham Construction: Major Canadian infrastructure contractor with civil and tunneling work across Western and Central Canada — overlaps with Technicore on transit and water infrastructure projects with similar government client profile.
• Bouygues Travaux Publics: Global tunneling and civil infrastructure contractor with North American project presence — comparable on TBM tunneling for transit and water systems, though significantly larger and more diversified than Technicore.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/technicore-group-of-companies
• Xx.com/midtowntunnel

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries4 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 Technicore Underground