NAICS 2379Industry group · 4-digitregional market1 market record

Other heavy and civil engineering construction

SoftwareHeavy Civil Construction Estimating & Operations 237

This industry group comprises establishments, not classified to any other industry group, primarily engaged in constructing heavy and civil engineering works. The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialized trade activities related to these civil engineering construction projects (such as marine pile driving) are included. Construction projects involving water resources (e.g., dredging and land drainage), development of marine facilities, and open space recreational construction projects (e.g., parks and trails) are included in this industry. — Statistics Canada, NAICS 2022A

Establishments · CanadaA: 1,430
Under 10 employeesA: 62%
Establishments · USA: 4,673
Employment · USA: 82,453
Payroll · USA: $7.5B

Size and shape

How many businesses there are and how small they are. Fragmentation is the first thing an entrant — or anyone selling software into this industry — needs to know, and it is one of the few things that is actually measured.

Canadian establishments by number of employeesA

1–459341%

5–929421%

10–1919614%

20–4918413%

50–99695%

100–199544%

200–499312%

500+91%

Of 1,430 Canadian establishments with employees, 62% have fewer than ten — mostly small operators.

Where they areA

Quebec37927%

Ontario35925%

British Columbia28220%

Alberta20614%

Largest four provinces by establishment count. Establishments with employees only — sole operators with no payroll are not in this table, so in trades and personal services the true number of businesses is higher.

How many new establishments are still tradingA

Construction, US · opened 2020

83.2%

1 year

68.2%

3 years

56.5%

5 years

42.6%

10 years

opened 2015

Measured, not forecast: the share of US establishments opening in one year that were still active later. It counts good operators and bad ones together, which is exactly why it is the honest answer to “what are the odds”. It is for the whole sector rather than this market, and the ten-year figure comes from an older cohort because no younger one has reached ten years.

How businesses here compete

The structural profile of subsector 237, which every industry beneath it inherits. This is analyst judgment from how the subsector is organised — not research into this industry, and not a measurement.

regional competitionhigh capitalUNVERIFIEDinherited from 237 Heavy and civil engineering construction

Equipment-heavy and bonded, won on the lowest compliant bid. A market of established regional firms with their own pits and plants.

Who sets the price: Public owners, by low-bid tender.
The software it runs on: Heavy-civil estimating, fleet telematics, project controls.

Market screens and studies

Market-entry records filed along this branch of the hierarchy. A record at or beneath this code is about this industry; one above it is about something wider that contains it.

Operating businessScreened

Marine Construction & Dredging ContractorStructure decides

binding constraint: capital intensity

The pre-screen called this the corner of heavy civil where a small contractor can still get in, and the business counts half agree: 62% of the 1,430 Canadian establishments have fewer than ten employees [A]. But the code holds two different businesses. The open end — parks, trails, drainage, small shoreline work — is open because nothing protects it: any contractor with an excavator can bid a municipal tender, and it meets the same prequalification and bonding wall that cut Utility System Construction (2371), without that record's funded programmes behind it. The end that is protected is on the water, and what protects it is the fleet. Great Lakes Dredge & Dock, the largest US dredger, reported record 2025 revenue of $888.3M and spent $143.9M on capital in the same year — sixteen cents of every revenue dollar — of which $69.1M went into a single vessel, the Acadia, and $32.3M into another [A]. In February 2026 it agreed to be bought by Saltchuk for $17.00 a share, a $1.5B transaction [A]: the price of a working fleet with its crews and its backlog, which fell from $1.2B to $763.2M of dredging work in the year [A]. Marine work is awarded to the contractor who already owns the barge, the crane and the dredge and can show them working. An entrant has to buy the plant before it can qualify to bid, then keep it busy on lumpy public tenders. The enterable end is undefended; the defended end is bought with steel.

NAICS 23794 vendors named11 sourced figuresOpen →

Software serving this industry

The vertical software markets filed along the same branch — who sells to these businesses and who they would have to displace — and then the generic categories every business buys whatever it does.

Sold across the wider branch

Vertical softwareScreenedfiled at 237 Heavy and civil engineering construction

Heavy Civil Construction Estimating & OperationsOne thing must be true

binding constraint: incumbent vulnerability

Incumbent HCSS (Thoma Bravo) and Trimble B2W

The switching cost is the estimating database, not the software — a contractor's historical production rates live inside HCSS and are the asset that wins bids. Trimble and Kiewit's InEight have the rest. The building-construction record at 2362 faced Procore; this one faces a data moat that is older and harder to copy. Nothing is disclosed here. Every vendor named on this record is private, or sits inside a parent that does not break the line out, so no revenue floor can be built and the market size is genuinely unknown rather than estimated.

NAICS 2374 vendors namedOpen →

And what every business buys · 25 generic categories

Sold to every industry rather than this one, so they are filed against the software industry's own code. The same few vendors recur across most of them.

Companies in this industry · 4

Every company this research names that is filed here or beneath — the operators, and the vendors that sell to them — largest disclosed revenue first. The rank is within the company’s own six-digit industry.

Company	Filed under	Revenue	Rank
Great Lakes Dredge & DockDelisted	Other heavy and civil engineering construction2379	$888M	1/4
Manson ConstructionPrivate	Other heavy and civil engineering construction2379	—	2/4
Orion GroupNYSE:ORN	Other heavy and civil engineering construction2379	—	3/4
Weeks MarinePrivate	Other heavy and civil engineering construction2379	—	4/4

Who works here

The occupations employed in Construction, most concentrated in it first. The share is measured against the whole sector, not this industry — the published cross-tabulation stops there.

Tagged to this industry

Operators, drillers and blasters Crane operators and water well drillers

Concentrated in this sectorA

Concrete finishers, tilesetters and plasterers One industry 94.3%

Bricklayers and insulators One industry 87.5%

Trades helpers and labourers One industry 80.7%

Carpenters and cabinetmakers One industry 79.9%

Plumbers, pipefitters and gas fitters One industry 79.8%

Roofers, glaziers, painters, decorators and floor covering installers One industry 73.7%

Contractors and supervisors, technical industrial, electrical and construction trades and related workers One industry 70.5%

Technical electrical trades and electrical power line and telecommunications workers Mostly one sector 60%

Managers in construction and facility operation and maintenance Mostly one sector 57.7%

Crane operators and water well drillers Mostly one sector 48.9%

These jobs are mostly done here. An operator in this industry is competing for them against others in the same industry, not against the whole economy.

And the jobs every business has

Building maintenance installers, servicers and repairers Across the economy 24.7%

Technical inspectors and regulatory officers Across the economy 14.4%

Technical occupations in electronics and electrical engineering Across the economy 12.7%

Legislative and senior managers Across the economy 10.4%

Administrative, property and payroll officers Across the economy 7.4%

Financial, insurance and related administrative support workers Across the economy 7.4%

Accounting, insurance and related business administrative occupations Across the economy 6.7%

Other technical trades Across the economy 6.1%

Office administrative assistants - general, legal and medical Across the economy 5.6%

Administrative services managers Across the economy 4.3%

Found across at least fourteen of the twenty sectors. In a small establishment several of these are usually one person, or an outside provider.

All 162 occupations →

Inside this industry

1 row sits directly beneath 2379, and 2 in all once every level is counted. Each has a base report of its own.

Code	Industry	Establishments · CA	What is known
23799	Other heavy and civil engineering construction	1,430	screened at 2379

Alongside it, under 237 Heavy and civil engineering construction

Code	Industry	Establishments · CA	What is known
2371	Utility system construction	3,382	Utility System Construction
2372	Land subdivision	2,259	Land Subdivision & Development
2373	Highway, street and bridge construction	2,092	Road Paving & Highway Contracting