What Demix Construction does

Demix Construction is a Quebec-based heavy-civil contractor that specializes in road construction and civil engineering for the Greater Montreal region and the Province of Quebec. The company is a division of Groupe CRH Canada inc., itself a subsidiary of the Irish-listed building materials group CRH plc. Demix operates four core service lines: (1) Special Projects covering bridges, viaducts, and major highway infrastructure, (2) Urban Infrastructure for municipal roads, earthworks, and sewer/water networks, (3) Concrete Pavement, where it has executed over 70% of Quebec's concrete pavements over the past decade, and (4) Asphalt Paving, supported by two company-owned asphalt plants (Saulnier for external customers and St-Martin for internal projects). A mobile concrete plant is positioned near job sites to enforce a 45-minute maximum concrete placement window.

The company's technical stack is grounded in conventional civil engineering rather than software: a mobile concrete batching facility, in-house developed mechanical safety attachments for electric tools, and a custom concrete-saw guide system designed to prevent kickback. Backward integration into raw materials is the primary operational lever — Demix draws aggregates from Demix Agrégats and concrete from Demix Béton, both CRH Canada sister divisions, eliminating third-party margin leakage.

The business model is built around competitive bidding for government contracts at the municipal and provincial level, supplemented by direct asphalt sales to external contractors. Revenue is project-based and recognized over multi-year construction windows (e.g., the $1.54 billion CAD Turcot interchange). Customers include Aéroports de Montréal (ADM), Ville de Montréal, and Société de Transport de Montréal (STM), with relationships spanning runways, urban arterials, and bus corridor projects. Pricing is not publicly disclosed; contracts are awarded through tender processes, and the company does not sell through intermediaries. Marketing is essentially reputational — driven by a professional website, LinkedIn presence, and a visible project portfolio rather than paid channels.

Name

Demix Construction

Legal name

Groupe CRH Canada inc.

Website

https://demixconstruction.ca

Company type

Private

Operating status

Operating

Headcount range

251–500 employees

Short description

Demix Construction is a Quebec-based heavy-civil contractor and division of Groupe CRH Canada inc., specializing in road construction, concrete paving, and civil engineering for municipal, provincial, and airport authority clients across Greater Montreal and Quebec.

Ownership category

akta.pro rank

Product category

Road Construction and Civil Engineering

NAICS

Highway, Street, and Bridge Construction (237310), Heavy and Civil Engineering Construction (237), Ready-Mix Concrete Manufacturing (32732)

SIC

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

akta.pro primary industry

Highway & Roadway Construction (Highways, Arterials, Streets) (IMAFAEAA)

akta.pro secondary industries

Tunnels & Underground Rail Civil Construction (IMAFAFAE), Temporary Traffic Control (TTC) Planning, Design & Engineering (MOT/TCP Plans) (TLAJALAA)

Keywords

• Road construction
• Civil engineering
• Concrete paving
• Asphalt manufacturing
• Transportation infrastructure

Headquarters

HQ city

Oakville

HQ country

Canada

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Infrastructure Construction Contracts: Revenue generated from large-scale construction projects including highways, bridges, airports, tunnels, and urban infrastructure. Projects are awarded through competitive bidding processes with government and institutional clients. This is the primary revenue stream.
2. Asphalt Sales: Sale of asphalt (enrobés bitumineux) to contractor clients. Demix operates two asphalt plants - the Saulnier plant serving external customers and the St-Martin plant serving internal projects.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

Demix Construction is a road construction and civil engineering contractor specializing in large-scale transportation infrastructure projects in the Greater Montreal region and Quebec province. The company executes concrete pavement construction, asphalt paving, bridge and highway construction, and urban infrastructure projects, operating two asphalt plants (Saulnier for external customers and St-Martin for internal projects) and a mobile concrete plant deployed near job sites.

Product overview

Demix Construction is a single-service construction company offering road construction and civil engineering services in the Greater Montreal region and Quebec province. The company operates four interconnected service lines: Special Projects (major infrastructure including bridges and highways), Urban Infrastructure Projects (municipal road, earthwork, and utility installation), Concrete Pavement (responsible for over 70% of Quebec's concrete roads), and Asphalt Paving (with two company-owned asphalt plants at Saulnier and St-Martin locations). A mobile concrete plant supports all construction activities by providing on-site concrete production. The company is a division of Groupe CRH Canada Inc.

Differentiator

Problem solved

Functional benefit

Products and services

• Special Projects (Major Infrastructure) Construction of large-scale infrastructure projects including bridges, highways, viaducts, and airport runways for government and institutional clients in Quebec.
• Urban Infrastructure Projects Municipal construction services including road asphalt work, earthworks, and sewer and water supply installation for urban environments.
• Concrete Pavement Construction Specialized concrete road paving services using a mobile concrete plant deployed near construction sites to guarantee concrete quality within a 45-minute placement deadline.
• Asphalt Paving and Manufacturing Asphalt manufacturing and paving services operating two company-owned asphalt plants serving both external contractors and internal projects.

Quantifiable outcome

• Over 70% market share of concrete pavements in Quebec over the past decade
• +1 more outcomes

Named customers3 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

Feature3 records

Partnerships

Three partnerships are on record, tiered core.

• KPH Turcot PartnershipcoreStrategic or Co-development Partner · 29 September 2017CRH Canada is a member of the KPH Turcot partnership responsible for the design-construction of main Turcot interchange infrastructure. The partnership includes construction of four interchanges, nearly 145 km of highways, 5 million m3 of excavation, 2 million tons of aggregates, and 438,000 m2 of concrete paving. Contract value is $1.54 billion CAD.
• Dufferin ConstructioncoreStrategic or Co-development Partner · 1 September 2015Demix Construction partnered with Dufferin Construction for the major runway reconstruction project at Montreal-Mirabel Airport in September 2015. The project involved reconstructing a 3.7 km concrete runway.
• Aéroports de Montréal (ADM)coreStrategic or Co-development PartnerLong-standing client relationship with Aéroports de Montréal for airport infrastructure projects including runway and taxiway reconstruction.

Scale indicators5 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Pomerleau: Quebec-based, employee-owned general contractor specializing in building, civil infrastructure, and industrial construction across Canada. Directly comparable to Demix on Quebec heavy civil, road, and bridge projects, and a frequent co-bidder or competitor on MTQ tenders.
• AECON Group Inc. Canada's largest publicly listed construction company, executing large-scale transportation infrastructure including highways, bridges, airports, and transit across the country. A direct competitor on Canadian road-building tenders and a benchmark for the broader Canadian heavy civil market.
• Dufferin Construction: Sister division of Demix within CRH Canada, performing heavy civil and road construction primarily in Ontario. Directly comparable on capability, equipment, and customer type, though operating in a different geography (Ontario vs Quebec) and therefore a regional rather than head-to-head competitor.
• EBC Inc. Major Quebec-headquartered general contractor executing heavy civil, road, bridge, and institutional building projects across Canada. Directly competes with Demix for Quebec transportation and municipal infrastructure contracts.

Broad incumbents

• PCL Construction: Large North American general contractor with substantial heavy civil and transportation infrastructure work. Overlaps with Demix on road, bridge, and airport construction at the larger end of the contract size spectrum, though PCL is significantly broader in scope.
• EllisDon Corporation: Major Canadian employee-owned construction services company with significant civil infrastructure and road-building capacity. Competes with Demix on larger transportation tenders and brings broader capabilities across buildings, civil, and services.
• AtkinsRéalis (formerly SNC-Lavalin): Global engineering, construction, and nuclear services firm with a major Canadian infrastructure practice covering highways, transit, airports, and bridges. Competes with Demix on large Quebec and Canadian P3/design-build infrastructure projects, and is a broader incumbent with much wider service scope.

Others

• WSP Global Inc. Global engineering professional services firm with a strong Canadian transportation infrastructure practice, often engaged as the design partner on the same mega-projects (e.g., Turcot) where Demix is the construction partner. A frequent collaborator/ecosystem participant rather than head-to-head competitor.
• Demix Béton (sister division): Sister division within CRH Canada producing ready-mix concrete, including supplying Demix Construction job sites. Not a direct competitor, but a key internal supplier that reinforces Demix Construction's vertical integration advantage.
• Holcim Canada (sister brand, formerly Lafarge): Sister brand of Demix Construction under the historical Holcim/Lafarge Canadian operations (Demix's YouTube channel is branded 'HolcimCanada'). Supplies cement, aggregates, and ready-mix; while not a direct construction competitor, it is a key ecosystem supplier and reflects the close-knit materials and construction family across CRH and former Holcim assets in Quebec.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/HolcimCanada
• LinkedInlinkedin.com/company/demix-construction
• Facebookfacebook.com/demixconstruction

Revenue estimate

Valuation estimate

Number of profiles

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 Demix Construction