NAICS 238160

Roofing Contractors in Millbrae, CA

The 1 ZIP codes assigned to Millbrae contained 3 Roofing establishments in 2023.

Establishments (2023)
3
1 ZIP codes
10 or more employees
n/a
Practical financing floor
Share of county
4%
San Mateo County
City population
22,869
2025 estimate

Figures cover the ZIP codes the U.S. Postal Service assigns to Millbrae (94030). ZIP areas are not municipal boundaries: they can extend beyond city limits and are shared between neighbouring places. This is a count of establishments in Millbrae's ZIP codes, not a count of businesses inside its city limits.

How this market compares

Millbrae against every other city in California on the same measure. City figures cover the ZIP codes assigned to the place rather than its municipal boundary, so they are compared as a share of the businesses in those same ZIP codes rather than per resident. Cities with fewer than 500 businesses in total are left unranked.

Densely served0.56% of local businesses, against 0.22% statewide

This industry takes up a far larger slice of the local business base than it does statewide. A crowded market: expect established competitors and price pressure, but also a deeper pool of businesses to buy.

Vs state share
+155%
Share of local businesses
Rank by count
#188
of 211 cities
Rank by share
#43
of 192 ranked
Since 2020
0%
Change in establishments

This compares how much of Millbrae’s business base is roofing contractors, against the California figure. Base: 539 establishments across all industries in the same ZIP codes, 2023. It does not measure revenue, profitability or whether a market is worth entering.

Business size mix

Millbrae is more consolidated than California as a whole: fewer micro-operators and a larger share of businesses with real headcount. Fewer targets, but the ones that exist are more likely to be financeable.

Share of establishmentsMillbraeCaliforniaDifference
Under 5 employeesOwner-operated, often no management layer0.0%49.4%-49.4%
5 to 49 employeesThe range most individual buyers target0.0%9.5%-9.5%
10 or more employeesPractical floor for acquisition financing0.0%3.4%-3.4%

Nearest comparable markets

The closest places to Millbrae that also have Roofing establishments on record. Useful for spotting a gap next door, or realising the market you are looking at is already served from the town over.

MarketEstablishmentsVs state share
San Bruno4+85%
South San Francisco12+141%
Pacifica5+260%
San Mateo7-25%
Daly City4+19%

The wider San Mateo County market

Employment and payroll are reported at county level only, so the figures below describe the county Millbrae sits in.

County establishments (2023)
69
San Mateo County
County employees
500
Mid-March employment
County annual payroll
$29M
All establishments
Full Roofing data for San Mateo County

What acquirers look at

Storm-driven revenue is lumpy and insurance-dependent; recurring commercial maintenance contracts are the durable part. Diligence should isolate re-roof versus repair mix.

Other industries in Millbrae

Nearby cities

Sources

  1. U.S. Census Bureau, 2023 ZIP Code Business Patterns. Establishment counts and size distribution by ZIP code and NAICS, aggregated over the ZIP codes assigned to each city. Retrieved 2026-09-08.
  2. U.S. Census Bureau, 2023 County Business Patterns. Establishment counts, employment and annual payroll by NAICS. Retrieved 2026-09-08.
  3. U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (2026Q1). Quarterly establishment counts and employment for employers covered by unemployment insurance. Retrieved 2026-09-08.