28 Internship Advertising jobs in Brea, California

Updated daily. Most recent posting: May 13, 2026.

Marketing Internship - 2

You’ll work on the front end of the business—researching opportunities, organizing prospect data, and supporting outreach efforts. This is a practical, execution-focused role designed to build real business skills. Please know this is an_ internship_ with a path to Full-Time, Part-Time, or Contract ...

Riverside, California D.A.M. Good Video Co.
Programmatic AdOps Intern (Unpaid)

ODK Media is seeking a Programmatic AdOps Intern to assist with the technical management and delivery of digital advertising campaigns across web and streaming platforms. The role involves troubleshooting ad delivery, analyzing performance data, and collaborating with the operations team to optimize...

Irvine, California ODK Media
Sales Intern

We’re currently seeking a driven and ambitious Sales Intern to join our Riverside team and gain hands-on experience in a fast-paced, people-focused environment. As a Sales Intern, you’ll represent leading telecommunications brands in retail and event-based settings, engaging directly with customers....

Riverside, California Ascend Marketing
Interns: Business Development - Digital Marketing Agency

We have multiple internship opportunities available in the following roles: Social Media Intern: As a Social Media Intern, you will work closely with our Social Media Manager to develop and execute social media strategies for our clients. 2. Business Development Intern: As a Business Development Int...

Los Angeles, California Digital Delane
Internship - Social Content Creator

The Social Content Creator Intern will ideate, capture, and edit trend-driven content for Monster Energy's portfolio of brands. This role focuses on creating authentic, social-first assets for platforms like TikTok, Instagram, and YouTube Shorts to drive audience engagement....

Corona, California Monster Energy
Internship - Social Content Creator (MCLAW Brands)

Monster Energy is seeking a Social Content Creator Intern to produce trend-driven, short-form video content for platforms like TikTok and Instagram. The role involves ideating, capturing, and editing engaging social-first content that aligns with the brand's authentic and unconventional voice....

Corona, California Monster Energy
Summer Internship

The A List is a full-service communications and experiential marketing agency creating IRL and digital experiences, innovative strategies and campaigns for fashion and lifestyle brands. The A List is seeking passionate and engaged interns for the Summer 2026 term. (The A List / The Honeyman Agency) ...

BEVERLY HILLS, California The A List
Intern - Copywriter

VML is seeking a copywriting intern for their 10-week Emerge internship program. The role involves hands-on project work, team collaboration, and AI integration, including a mock pitch for a real client....

Costa Mesa, California VML
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