Irvine is a planned Orange County city of about 307,700 residents (2020 census) and one of the region's main corporate centers. UC Irvine is its largest employer, and the city is home to companies such as Blizzard Entertainment, Edwards Lifesciences and Razer, plus the North American headquarters of Kia and Mazda. That base shapes the local agency market: Irvine firms commonly serve medical device and health care organizations, B2B and technology companies, automotive and consumer brands, and a large number of ecommerce and professional-services businesses. The Orange County Business Journal tracks the county's ad agencies each year, and several independents on its list are based in Irvine.
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Parker Levi is the publisher and curator of this guide. Based in Delray Beach, Florida, Parker Levi is a full-service digital agency providing brand management, brand services, creative services, design, marketing and paid media.
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454 Creative is an Irvine digital marketing agency, founded in 2003, that builds websites and growth programs for established businesses and emerging brands. Its services include custom and e-commerce web development, brand development, SEO, PPC and lead generation. Clients include the UCI Paul Merage School of Business, Volvo Construction Equipment, Mariners Church and Marshall B. Ketchum University, and its blog details a Chaffey Credit Union campaign that cut cost per conversion in half.
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BrandingBusiness is a B2B branding firm founded in 1994 and headquartered in Irvine, with offices in New York and London. It handles brand research, strategy, naming, identity, messaging and launches, with particular depth in corporate rebrands and M&A branding. Clients named on its site include ZS Associates, Schreiber Foods, Hoag, Children's National Health System and ICU Medical, and Clutch reviewers point to its mergers and acquisitions experience.
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Envoy is a connected customer experience consultancy headquartered in Irvine, with additional offices in San Diego and Chicago. It combines brand strategy, commerce, B2B and B2C websites, digital products, digital environments, and marketing and media. Clients shown on its site include VIZIO, TaylorMade, McDonald's, Arlo, Diageo and Petco. According to Advertising Week, Envoy unified its Bulldog Drummond and Leviathan agency brands under the Envoy name.
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Healthcare Success is an Irvine agency, founded in 2006, that focuses entirely on health care and medical marketing. Its roughly 40-person team handles SEO, paid search, social, content, websites, branding, traditional media and reputation management, and it says it has marketed more than 1,000 health care clients. Named clients include Illinois Bone and Joint Institute and Pomona Valley Health Centers, and the Orange County Business Journal ranked it No. 14 on its 2026 agency list.
What we like
Human is an Irvine digital marketing agency focused largely on ecommerce brands, including companies that have appeared on Shark Tank. Its services span strategy and analytics, branding, conversion rate optimization, web design, paid media, SEO, content, email and SMS, and it also offers generative engine optimization. Clients named on its site include Softies, Thompson Tee, Kwik-Hang and Rinseroo, and one client cites a partnership of more than nine years.
| # | Agency | Specialties | Size | Founded | Save |
|---|---|---|---|---|---|
| 01 | Parker Levi Publisher | Branding, Content Marketing, Creative | — | — | |
| 02 | 454 Creative | Branding, Content Marketing, Paid Media | Boutique | 2003 | |
| 03 | BrandingBusiness | Branding, Content Marketing, Creative | Boutique | 1994 | |
| 04 | Envoy | Branding, Creative, Paid Media | Mid-size | — | |
| 05 | Healthcare Success | Branding, Content Marketing, Creative | Boutique | 2006 | |
| 06 | Human | Branding, Content Marketing, Email Marketing | Boutique | 2015 |
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Irvine agencies frequently work with health care, B2B and technology, consumer and ecommerce brands. Some specialize deeply, such as Healthcare Success in medical marketing and BrandingBusiness in B2B branding.
Yes. The Orange County Business Journal publishes an annual list of the county's advertising agencies ranked by revenue; its 2026 report tracked 21 agencies.
Yes. Irvine has larger experience-focused firms such as Envoy, which has more than 110 employees across three offices, as well as smaller web and digital marketing teams such as 454 Creative and Human.
Ask for case studies in your industry, who will handle your account day to day, and how results are measured and reported. Reading verified reviews on platforms such as Clutch can also help you compare firms.