- City of Oceanside
- MiraCosta College
- Mission San Luis Rey
Owned and operated by the Franciscan Friars of California, the mission provides both guided and self-guided tours, a museum, gift shop, Franciscan Retreat Center, cemetery as well as various functions and events.
- California Surf Museum
- Ironman California
Features entry, course, and merchandise information.
- All Access Insurance Services
Car, truck, motorcycle, home, business, and health insurance services.
- Oceanside Museum of Art
Hosts a broad range of international, national, and regional exhibits.
- Oceanside Unified School District
Resource for school and employment information, events, news releases, contacts, bond information, and more.
Offers a variety of inkjet cartridges, papers, labels, barcode systems, and barcode printing.
- Oceanside, California
- Tri-City Medical Center
- Rosicrucian Fellowship
International association of Christian mystics.
- North County Gymnastics and the Gyminny Kids
Boys' and girls' gymnastics classes, stressing fun and fitness.
- Nottingham Center for the Arts
Nonprofit center for the studio arts. workshops, programs, classes, studio space and scholarships for working artists.
- New Song Church
Presents biblical truths in a relevant way, reflecting the belief that attending church should be an enjoyable experience.
Services include graphic and web site design.
- Sandy Vacations
Offers one and two bedroom condominiums.
- Motel 9
Features online reservations and information on local attractions.
- Santourian Manufacturing Inc. (SMI)
Offers precision sheet metal fabrication, stamping, welding, machining, engineering, and assembly.
- Thomson Instrument Company
Distributors of hplc pumps, detectors, software, fittings, and accessories.