Local directory · Ontario, CA

General Contractors in Ontario, CA

Written & reviewed by Founder, SEO Local · 22 years in SEO · Updated October 2026 · LinkedIn

There's a total of 535 general contractors located in San Bernardino County, CA according to the US Census (County Business Patterns). Here's a list of 20 of them by name - 18 have a phone number and 18 also have a linked website. Any owner can claim their page on our hashtag.org network for free.

General Contractors directory · Ontario

Data: Listings via Google

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Local news · General Contractors · Ontario

General Contractors in Ontario — FAQ

How many general contractors are in Ontario, CA?
According to the US Census (County Business Patterns), there are 535 general contractor business locations in San Bernardino County, CA. 20 of them have been listed here by name.
How many of these general contractors list contact details?
Out of the 20 general contractors listed on this page, 18 provide a phone number and 18 have a linked website.
Is this Ontario general contractors directory free?
Each listing is based on accurate information from the US Census County Business Patterns and Google - and any business can claim their page on the hashtag.org network without having to pay anything.

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