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Construction company directory

Construction Companies in Maine

Our directory lists 28 construction companies in Maine across 23 cities, built from OpenStreetMap office records and the ENR Top 400 Contractors list. Portland has the most listings. Each listing shows only the facts on record.

Companies
28 companies
Cities
23 cities
Ranked contractors
1 ENR Top 400 contractors

Which cities in Maine have the most construction companies?

Portland has the most construction companies in Maine, with 3 listings, followed by Augusta. Pick a city to see every company listed there.

Which construction companies are listed in Maine?

These are all of the 28 construction companies listed in Maine, with ranked contractors first.

Which large contractors are based in Maine?

The Cianbro Cos. is the highest-ranked contractor listed in Maine, at No. 107 on the ENR Top 400 Contractors list for 2026.

  1. 107The Cianbro Cos.Pittsfield

What are the most common construction trades in Maine?

The most listed trade in Maine is electrical contractors, with 5 companies. A company can be listed under more than one trade.

How do I check a contractor's license in Maine?

Search the Maine Office of Professional and Occupational Regulation by company name or license number before you hire. Maine has no statewide general contractor license. The state licenses electricians, plumbers and fuel technicians; other contractors are licensed locally.

Check a license in Maine

Licensing rules checked October 2026. Requirements change, so confirm on the state site.

FAQ

Construction companies in Maine: FAQs

How many construction companies are in Maine?

Our directory lists 28 construction companies in Maine, from OpenStreetMap office records and the ENR Top 400 Contractors list.

Which cities in Maine have the most construction companies?

Portland (3), Augusta (2), Lisbon Falls (2), Springvale (2) and Auburn (1) have the most listings in Maine.

How do I check a contractor's license in Maine?

Maine has no statewide general contractor license. The state licenses electricians, plumbers and fuel technicians; other contractors are licensed locally. Search the Maine Office of Professional and Occupational Regulation by company or license number before you hire.

Which large contractors are based in Maine?

Ranked contractors listed in Maine include The Cianbro Cos. (No. 107) on the ENR Top 400 Contractors list for 2026.

What construction trades are most common in Maine?

The trades with the most listings in Maine are electrical contractors (5), landscaping contractors (4), carpentry contractors (4) and roofing contractors (3).

For construction companies

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Office locations © OpenStreetMap contributors, available under the Open Database License. Company rankings from the ENR Top 400 Contractors (2026).

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