Construction companies in Denver: 9,143 contractors, who pulls the city's permits and how to check a license

This report is for property owners and developers hiring a contractor in metro Denver, subcontractors and suppliers looking for work, people researching the market and B2B sellers covering the Front Range. It combines Census counts, the City and County of Denver's own permit and license records, and company filings.

Metro Denver in Census data

County Business Patterns (CBP) 2023, construction sector (NAICS 23), Denver-Aurora-Centennial, CO Metro Area (CBSA 19740):

In three bands: 8,180 establishments have 1 to 19 employees, 792 have 20 to 99, and 171 have 100 or more.

Limits. CBP counts establishments (locations) with paid employees in mid-March 2023, not companies, and leaves out self-employed contractors. A firm with an office in Lakewood and a yard in Commerce City counts twice.

Denver County is fourth

Clear Creek and Gilpin counties hold the other 66. Jefferson County leads on count, with smaller firms averaging 7.9 employees; Arapahoe and Adams lead on employment, with larger contractors averaging 12.5 and 13.1. A Denver city license only matters for work inside the City and County of Denver, so check where the job is.

Big civil and line crews

Nationally, heavy and civil firms employ 13.7% of construction workers and power and communication line contractors average 41 employees. In metro Denver the figures are 20.2% and 99. That fits the region's public companies: MYR Group, a specialty electrical contractor for electric utilities and commercial and industrial customers with about 9,000 employees, is headquartered in Thornton.

Who pulls Denver's commercial permits

The City and County of Denver publishes commercial and residential construction permits as open data, with the contractor named on each. For permits issued in 2024 and 2025:

Alterations and tenant finishes were 1,993 of the 2,527 commercial permits in 2025; new buildings were 142. The contractors with the most reported commercial permit value in 2025, as named in the city's data:

Valuation is what the applicant reports, and names are typed, so one firm can appear under two spellings. Read this as who filed for the most work in the city in 2025, not a revenue ranking.

Across the whole metro, the Census Bureau's Building Permits Survey counts 15,948 housing units authorized in 2025, against 15,570 in 2024. Single-family units fell from 9,012 to 7,477 while units in buildings of five or more rose from 6,429 to 8,195.

Licenses in Denver

Denver runs its own contractor licensing. It's a two-step process: first a supervisor certificate (held by the applicant or an employee), or a Colorado electrical or plumbing license in its place, then the contractor license itself. Plumbing contractors must keep their state contractor and master plumber cards current with the Colorado Department of Regulatory Agencies before Denver renews them. Denver doesn't accept or reciprocate contractor licenses or certificates from other counties or states, so a license from Aurora or Lakewood doesn't cover a job in the city. Work in the public right-of-way, such as sidewalks, sewer and paving, needs a separate right-of-way license.

For state highway work, the Colorado Department of Transportation (CDOT) publishes a list of prequalified general prime contractors with their work codes, prequalification expiration dates and the dollar amount each is prequalified to bid up to.

How to check a Denver contractor

1. Search the license on Denver's contractor license search and confirm it's active and in the name on your contract.
2. Look up its permits in Denver's open data by contractor name: how many, how recent, residential or commercial, and the reported values.
3. For electrical or plumbing work, confirm the state license with the Colorado Department of Regulatory Agencies as well.
4. Get a certificate of insurance naming you, and lien waivers with each payment.
5. Ask for references from jobs of the same size in the same jurisdiction; a firm that works mostly in Douglas County may not know Denver's inspectors.

Public companies headquartered in the metro

All figures are company-wide from each company's latest 10-K.

Selling to Denver contractors

The city's permit data makes timing easy: contractors with 10 or more commercial permits a year (63 names in 2025) are steady buyers of subcontractors, equipment and materials, and a first permit from a new name often means a firm entering the market.

Illustrative example. The company and its assumptions are invented; the counts are from CBP 2023.

Mile High Telematics (milehightelematics.example) sells GPS tracking and maintenance software for heavy equipment fleets. Its best fit is heavy and civil contractors: 398 establishments with 20,712 employees, plus 338 site preparation firms. If half have 20 or more employees and enough equipment to justify tracking, that's about 370 accounts. At 30 machines per account and $40 per machine a month, winning 12% (44 accounts) is $633,600 a year. Knowing which firms just won a CDOT or city contract is the slow research; Bebop does it for each account in the list and drafts the opening email.

Sources for names

Next step: build the list itself with the construction companies industry guide, or see how a desert metro compares in the Phoenix construction companies report.