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Companies in Foothill Ranch, California

2,487 companies in Foothill Ranch, California.

Find 2,487 companies in Foothill Ranch, California. From manufacturers to industrial suppliers, each listing carries the firm's address, website, size, and NAICS/SIC codes. You can also browse nearby cities such as Los Angeles, San Francisco, San Diego.

Of the 2,485 with a known headcount, 96% employ 1-50 people and 5 employ more than 1,000. 97% of those reporting revenue are under $10M.

2,487Companies
8500+ employees
0$1B+ revenue
Jul 17, 2026Last updated
Todd LandgrenFoothill Ranch, California, United States · ConsumerAdventure Managed Services LLCFoothill Ranch, California, United States · Industrial & mechanicalJ Engineering IncFoothill Ranch, California, United StatesCartridge ExpressFoothill Ranch, California, United StatesPlatinum Yacht ServiceFoothill Ranch, California, United StatesHazem Yousef Dds, Mds IncFoothill Ranch, California, United States · Healthcare & Life ScienceKerr Engineering & Sales IncFoothill Ranch, California, United StatesL & J Morris Investments LPFoothill Ranch, California, United States · FinancialSantosmichelleFoothill Ranch, California, United StatesAll City Mobile Garage DoorFoothill Ranch, California, United StatesJkb Homes and Property Management LLCFoothill Ranch, California, United States · Industrial & mechanicalADVANCED BUSINESS GROUP...https IncFoothill Ranch, California, United States · Industrial & mechanicalMg Jiu Jitsu Fullerton IncFoothill Ranch, California, United StatesBong Media TVFoothill Ranch, California, United States · CommunicationKimberly J Evans OTFoothill Ranch, California, United States · Healthcare & Life ScienceGRIFFIN GROUP INVESTMENTS IncFoothill Ranch, California, United States · FinancialCantrell Properties LLCFoothill Ranch, California, United States · Real EstateCoronadocomputersFoothill Ranch, California, United StatesIranzamin Publishing LLCFoothill Ranch, California, United States · CommunicationDibs Properties LLCFoothill Ranch, California, United States · Real EstateTrs Golf IncFoothill Ranch, California, United StatesFoothill Ranch Medical OfficesFoothill Ranch, California, United StatesFoothill Ranch CoFoothill Ranch, California, United States · Food & BeverageThe Garden Mediterranean GrillFoothill Ranch, California, United States

These pages show the first 120 of 2,487 companies. Narrow the list with the filters above or open one of the related lists below to see the rest.

Foothill Ranch, California companies by size and revenue

By number of employees
EmployeesCompaniesShare
1-502,39596.4%
51-200722.9%
201-1000130.5%
1001-500040.2%
5001+10.0%
By annual revenue
RevenueCompaniesShare
Under $10M2,40396.9%
$10M-$50M672.7%
$50M-$250M90.4%
$250M-$1B20.1%
$1B+00.0%

Share is of companies with a known value — 2,485 with headcount and 2,481 with revenue on file, as of Jul 17, 2026.

Frequently asked questions

How many companies are in Foothill Ranch, California?

2,487 companies in the directory are located in Foothill Ranch, California.

How many large companies are in Foothill Ranch, California?

8 of the 2,487 companies in Foothill Ranch, California employ more than 500 people. See the size and revenue breakdown above for the full distribution.

What size are most Foothill Ranch, California companies?

Most are small and mid-sized businesses: the size and revenue tables above show the full spread, from under $10M up to $1B+, across the 2,481 companies with revenue on file.

What information is included for each company?

Every listing includes the company name, location, website, employee size, revenue range where available, and NAICS/SIC classification, with a link to the full profile.

Where does this directory come from?

Listings are compiled and maintained by Factur, a sales and marketing firm for B2B manufacturers. Any company can request an update or removal from its profile page.