5.3.7.4Vertical

Port & Marine Construction

Marine contractors building docks, wharves, and marine infrastructure.

Market snapshot

These figures describe Heavy & Highway Construction (5.3.7), the segment that Port & Marine Construction sits within. They are not figures for Port & Marine Construction on its own.

Market size
~$194B
Growth
~5.3%CAGR (2017–22, nominal)
Companies
~12,974 firms
Firms by employee count

74.1% of firms have fewer than 20 employees: 9,619 micro-businesses, below most mandates.

The investable universe3,355 firms with 20+ employees
20–99
2,51975%
100–499
64119%
500+
1956%

Demand is a public budget line, not a market: highway and bridge work follows federal and state programs, so the 2021 infrastructure act underwrites volume well past this data. Barriers are bonding capacity and aggregates access rather than skill, and incumbents with materials positions are structurally advantaged.

NAICS 237310, 237990. U.S. Census Bureau, 2022 Statistics of U.S. Businesses; U.S. Census Bureau, 2022 Economic Census.

Business model & economics

Revenue model

Public and private heavy-civil project contracts

Key economics

Revenue per firm
$14,980,617
Revenue per employee
$474,716
Employees per firm
30.0
Recurring revenue
Low

project- and bid-based

EBITDA margin
Equipment- and bonding-driven
Capex intensity
High

Characteristics

  • Scale-driven: payroll is only 18% of revenue, so the cost base is assets, not headcount
  • Deep strategic-buyer pool: 195 firms exceed 500 employees, so a scaled asset has trade buyers
  • Capital-, equipment-, and bonding-intensive.
  • Federal infrastructure funding a multi-year tailwind.
  • Largely public-sector clients (DOTs, municipalities).

NAICS 237310, 237990. U.S. Census Bureau, 2022 Statistics of U.S. Businesses; U.S. Census Bureau, 2022 Economic Census.

Geographic concentration

AlabamaArizonaColoradoFloridaGeorgiaIndianaKansasMaineMassachusettsMinnesotaNew JerseyNorth CarolinaOklahomaPennsylvaniaTexasWyomingConnecticutMissouriWest VirginiaIllinoisNew MexicoArkansasCaliforniaDelawareDistrict of ColumbiaHawaiiKentuckyMarylandMichiganMississippiMontanaNew HampshireNew YorkOhioOregonTennesseeUtahVirginiaWashingtonWisconsinNebraskaSouth CarolinaIdahoNevadaVermontLouisianaRhode IslandAlaskaNorth DakotaSouth DakotaIowa

Road work follows lane-miles, not people: the most concentrated states are the least dense ones, where each resident's share of highway network (and of the budget maintaining it) is largest.

AlaskaSouth DakotaIowaNorth Dakota

U.S. Census Bureau, 2022 Statistics of U.S. Businesses (firms by state), NAICS 237310/237990. Concentration shown by location quotient.

M&A deal context

Deal activityModerate

Who’s acquiring

  • Heavy-civil strategics
  • Aggregates & materials-integrated players
  • Infrastructure investors

What’s driving deals

  • Infrastructure-funding-driven demand.
  • Vertical integration with aggregates.
  • Regional heavy-civil consolidation.

Find Port & Marine Construction acquisition targets

Search Acquisera’s index for companies classified under Port & Marine Construction (5.3.7.4) and build a targeted deal pipeline.

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