c3 Communications Inc. is a PR firm near Oceanside. The agency works with a wide range of clients, including startups, nonprofits, franchises with multiple units nationwide, and local established enterprises. It can provide all public relations services, from researching the client's target audience and strategically planning communication campaigns to generating content for all media and reaching out to influencers in social media. It also specializes in dealing with crises. The agency's team of PR consultants across the nation has worked with many major brands, including Cirque du Soleil, Massage Envy, The Miami International Boat Show, Westfield Shopping Centers, Disney, Oakley, and Cricket Wireless.

Lee & London Public Relations is a boutique agency serving clients throughout California. Its clients are small businesses and established brands that specialize in an array of products and services, including consumer goods, cultural events, hospitality, and interior design. Its PR professionals have operated throughout the nation, working on big and small projects, such as orchestrating crisis management, coordinating promotional campaigns that utilize social media influencers, and arranging product launches for new businesses. The agency's clients include nonprofits, such as Feeding America and WildAid, and technology companies, such as The Taurus Aerospace Group.

Metz Public Relations is a boutique agency near Oceanside that serves small-to-midsize businesses and nonprofits throughout Southern California. For more than 20 years, it has managed communications in a diverse range of industries, including high tech, law, real estate, agriculture, and interior design. The agency handles all PR services, such as planning campaigns, writing copy, designing graphics, and organizing promotional events and product launches. It also offers website design services. Metz Public Relations’ clients have included Sudberry Properties, HomeFed Corporation, Trammell Crow Residential, inSITE, and the American Society of Interior Designers.

VIB Marketing Agency is a full-service PR firm near Oceanside with over two decades of experience in public relations and marketing. It works with individuals, startups, and small businesses to develop their brands, manage their reputations, and deal with crises. Its clients are municipalities, lifestyle businesses, providers of hospitality, and health care specialists. The agency's services include preparing press kits and releases and reaching out to influencers in online and offline media channels. VIB Marketing Agency's clients include the Huron County Community Library, United Diabetic Supplies, and the East of Eden retreat and spa.