Businesses in San Marcos, California
3,515 local businesses across 110 categories, from doctors & clinics, restaurants and more shopping. 0.3% of everything listed in California.
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Quick answer
San Marcos, CA has 3,515 businesses listed on USA Business Search in 110 categories across 10 ZIP codes. The most-listed are doctors & clinics, restaurants and more shopping.
Updated October 2026Most listed in San Marcos
Doctors & clinicsRestaurantsMore shoppingSchools & tutoringManufacturing & wholesaleAuto repairGeneral contractorsReal estate agentsGyms & fitnessDentists
Home services
General contractors (104)Landscaping & lawn care (34)House cleaning (31)Flooring (29)Roofers (25)Plumbers (21)Kitchen & bath remodeling (19)Windows & doors (18)HVAC & heating (15)Locksmiths (15)Water & fire restoration (14)Concrete & paving (13)Movers & hauling (13)Electricians (10)Painters (10)Interior design (9)Pest control (8)Handyman services (6)Garage doors (5)Solar (4)Home inspectors (2)
Marketing & advertising
Auto
Food & drink
Health & medical
Beauty & personal care
Professional services
Real estate
Finance & insurance
Legal
Shopping & retail
Pets
Fitness & recreation
Hotels & travel
Education & childcare
Events & entertainment
Business & industrial
Community & faith
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More businesses in San Marcos
Campgrounds & RV parks (1)
Event venues (2)
Bellagala Events, Inc
Williams' Barn
Graphic design (4)
Clear Sign & Design Inc
Rich Designs
Square Root Design Studio
Microfab Mfg Sheet Metal Product Design
Home inspectors (2)
Ertman Property Inspections
Shoreline Special Inspection Inc.
Solar (4)
Sunrun Inc.
Precision Solar
Solnova
Solar Universe
Towing (4)
California Towing & Recovery
24 Hour Towing Service of San Marcos
Western Towing
Western Towing
Vacation rentals (1)
San Diego Coastal Homestays
Web design (1)
Ascential Media
Common questions
How many businesses are listed in San Marcos, California?
USA Business Search shows 3,515 businesses in San Marcos across 110 categories.
How does San Marcos compare with other California cities?
San Marcos is #93 of 1,980 California cities and towns we cover by number of listings, with 0.3% of everything listed in the state.
What kinds of businesses are most common in San Marcos?
The most-listed categories are doctors & clinics, restaurants and more shopping.
How do I add a San Marcos business?
Listings are free. Use Add your business, or the Claim or fix link on any listing.