The 10 Best Online Advertising Agencies in California - 2025 Reviews

Top Online Advertising Agencies in California

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All Online Advertising Companies in California

  • (0 review)

    Where Possibilities Become Prosperity!

    Weprospect.co is a market consultancy firm that helps businesses navigate today's ever-evolving market through our data-driven Lead Generation & Market Research services which are designed to help businesses close deals faster. Our team of consultants leverages cutting-edge research methods and data analysis to identify key market opportunities and tailor campaigns to create better traction and convert more deals. We understand that every business is unique and that's why we take a customised approach to our services. We offer a wide range of services, including market research, sales strategy, and more.
    Looking for work in Online Advertising
    Located in San Francisco, United States
    Budget on request
    Worked in Software & Computer Services
    Speaks English
    11-50 members
  • 5
    (4 reviews)

    We Build Brands Better. Come Play With Us.

    Recommended
    Hi 👋🏼 We're Good Kids.
 We're an an independent agency based in Los Angeles, NYC & Toronto. We create evocative campaigns that connect with audiences. Our powerful marketing strategy & outstanding advertising take our clients further than ever. Want to see where we can take you?
 ✨ We help small brands become big and big brands become giant. 🏆 Our award-winning strategy is on engagement, awareness & authenticity, underlining what's important. We create evocative campaigns that connects with audiences In meaningful ways. We humanize, amplify & relate. This converts, moves the dial and makes it shareable. In Short: We Build Your Reputation & get you results. We’re very good at: 🧠 Marketing Strategy 💥 Creative Production 📱 Social Media Management 💻 Digital Marketing 🤝 Pr & Partnerships 🎪 Pop Up Events 💰 Paid Advertising & SEO - In a world where you can be anything; don’t be boring.
 We'll give 'em something to talk about!
    5 works in Online Advertising
    Located in Los Angeles, United States (+1)
    From €10,000 for Online Advertising
    Worked in Marketing & Advertising (+5)
    Speaks English, French(+1)
    11-50 members
  • (0 review)

    Influencer Marketing, Social Media Growth & Branding Agency based in Los Angeles.

    Runway Influence is a top influencer agency for strategic marketing and campaign solutions. We leverage innovative and cutting-edge data analytics, along with industry insights, to amplify brand reach and engagement as an influencer marketing agency. We specialize in curating authentic collaborations to elevate brand visibility and resonance within the platform's dynamic community. Additionally, our expertise extends beyond influencer partnerships, as we also excel as a content creation agency, crafting compelling narratives and visuals to captivate audiences across various digital channels. Hire from the top Instagram influencer agency in Los Angeles, New York, and Miami. Contact Runway Influence today!
    Looking for work in Online Advertising
    Located in Los Angeles, United States
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)
    We are your optimal digital partner in : Data driven marketing, Strategic SEO, Paid media, Go to market strategy, Programmatic and native ads., Affiliate marketing . A track record of building North America's best Dispensary & Cannabis/Hemp/CBD E-commerce brands. Experience Matters! Free Consultation We help teams build a business of their dreams with our services.
    Looking for work in Online Advertising
    Located in San Francisco, United States
    Budget on request
    Works in multiple industries
    Speaks English
    51-200 members
  • 5
    (22 reviews)

    Grow Big, Grow Right.

    Highly recommended
    Top awarded
    At Rhillane, we don’t just market your brand—we ignite its full potential. As a full-service digital marketing powerhouse, we’ve helped over 615 clients worldwide, delivering +50 million dollars in client revenue and managing 15+ million dollars in ad spend. From dynamic web design and UI/UX to game-changing SEO, social ads, 2D/3D animation, and lead-generating email campaigns, our multidisciplinary experts ensure every aspect of your online presence works together to drive extraordinary growth. Our results speak louder than words. With 280 Meta Ads clients, a proven track record of +80% campaigns achieving a ROAS of 7 or higher, and a 96% client satisfaction rate, we combine cutting-edge tools, creative brilliance, and deep analytics to create tailor-made campaigns that don’t just attract clicks—they build connections. Whether it’s crafting scroll-stopping social content, executing high-ROI ad campaigns, or designing sleek, user-focused websites, our work is designed to captivate, convert, and keep your audience coming back. At Rhillane, we’re more than a digital agency—we’re your growth partner. With us, you gain access to bold ideas, strategic expertise, and a team passionate about pushing your brand to new heights. Join the ranks of top-performing businesses we’ve transformed, and let’s write your success story together. Your breakthrough starts here.
    26 works in Online Advertising
    Located in Torrance, United States (+2)
    From €1,000 for Online Advertising
    Worked in Clothing & Accessories (+16)
    Speaks English, Arabic(+2)
    11-50 members
  • 4.8
    (4 reviews)

    Empowering Growth, Overcoming Doubt

    Recommended
    Our Expertise Harrington Clark was born to help companies navigate the often confusing world of social media management and advertising. We recognized a significant gap in understanding and a pervasive fear among businesses to trust agencies that promise but don’t deliver. Social Media Management Beyond advertising, our Social Media Management services encompass content creation, community management, and performance analysis. We handle everything from crafting compelling posts and managing interactions to monitoring analytics and optimizing your social media presence. Our goal is to build a strong, engaged community around your brand, fostering loyalty and growth. Social Media Advertising Our Social Media Advertising services are designed to maximize your reach and ROI. We manage monthly advertising budgets ranging from $1,000 to $300,000+, consistently generating healthy returns. By leveraging targeted campaigns and data-driven strategies, we ensure your ads resonate with the right audience, driving engagement and conversions. Why Choose Harrington Clark? Industry Experience: Proven track record with PR, Tech, Startups, Fortune 500 companies, and 20+ more industries. Customized Strategies: Tailored approaches for accounts of all sizes, from 1,000 to 100,000+ followers. Comprehensive Services: Integrated Social Media Advertising and Management for cohesive brand growth. Data-Driven Results: Effective budget management and ROI-focused campaigns. Partner with Harrington Clark to unlock the full potential of your social media channels. Let us manage your online presence while you focus on what you do best—running your business.
    3 works in Online Advertising
    Located in Los Angeles, United States
    From €1,000 for Online Advertising
    Worked in Pharmaceuticals & Biotech (+3)
    Speaks English, Spanish
    11-50 members
  • 4.9
    (13 reviews)

    Grow your business with automated digital marketing.

    Highly recommended
    At 3techagency we’re a ROI-Driven digital marketing agency helping businesses scale up marketing efforts seamlessly through tools & services that grow revenue, improve efficiency & team versatility.
    2 works in Online Advertising
    Located in Nairobi, Kenya (+1)
    From €200 for Online Advertising
    Worked in Consumer Electronics (+4)
    Speaks English, Swahili
    11-50 members
  • 5
    (1 review)

    Expert Digital Marketing | Amplified Growth Strategies

    Launched in 2010, AnjasDev is a premier full-service digital marketing agency based in Modesto, CA. The AnjasDev mission is to provide the most effective digital marketing solutions in the industry, a high-touch customer experience, deliver results, and use profits to reinvest in client success, employee success, and the community. AnjasDev is one of the highest-awarded digital marketing agencies in the industry and works with some of the biggest brands in the world.
    7 works in Online Advertising
    Located in Modesto, United States
    From €1,000 for Online Advertising
    Worked in Beverage (+5)
    Speaks English
    51-200 members
  • 5
    (20 reviews)

    Fortunatos: Your Digital Growth Partners 🚀

    Top awarded
    Ready to Power-Up Your Digital Marketing ? 📈 Whether it's SEO , PPC , Social Media Advertising , Native Ads , or Media Buying – we've got it all. Our compact yet dynamic team of around 40 passionate learners, hard workers, and thoughtful professionals is more than just a workforce - we're a close-knit family. ⭐ We specialize in custom digital marketing solutions: • SEO (B2B, E-commerce, Local, Fintech, etc.) • PPC (Google Ads, Bing Ads) • Social Media Marketing (Meta&IG Advertising, TikTok Ads, Twitter Ads, etc.) • Content Marketing • Email Marketing • Analytics & Reporting
    1 work in Online Advertising
    Located in San Ramon, United States
    From €1,000 for Online Advertising
    Worked in Home Services (+8)
    Speaks English, Russian(+1)
    11-50 members
  • 4.8
    (2 reviews)

    We Build the Moment.

    Recommended
    Top awarded
    Eidetic Marketing l Global Experience Marketing Agency EIDETIC is an award-winning agency specializing in event marketing and brand design, with offices in Seoul, Shanghai and Los Angeles. They excel at crafting unforgettable experiences by illuminating a brand's core essence. Always pushing boundaries to create the new, they design and activate brand personalities in a manner that leaves a lasting imprint on your memory. We have been providing services to global clients such as Google, Samsung, BMW, Tencent, Hyundai, EA, Vivo etc. >> About : https://www.eideticmarketing.com/what-we-do/ >> Submit your RFP at info@eideticmarketing.com ⠀⠀ ⠀⠀⠀⠀ Eidetic Marketing Service area Eidetic’s services are structured to engage beyond on/offline barriers to achieve client goals. From strategic branding to events, we create experiential customer journeys to engrave your brand to memory. Experiential Marketing & Brand Activation - Global Exhibitions - Global Events/eSports Events - Integrated Branding Marketing Strategy & Digital Marketing - Creative Strategy - UI/UX App Renewal - Digital Advertising Social Media & Global Influencers - Global PR services - Global Influencers - Social Media Management >>See More Our works on here: https://www.eideticmarketing.com/work/
    Looking for work in Online Advertising
    Located in El Segundo, United States (+2)
    From €1,000 for Online Advertising
    Worked in Consumer Electronics (+8)
    Speaks English, Chinese(+3)
    11-50 members
  • 5
    (27 reviews)

    Website | Ecommerce Solution | App Development | Branding | Digital Marketing

    Highly recommended
    Top awarded
    Soharon is a full fledge creative agency based in Dubai partnering with various industries in creating an extraordinary web design, e-commerce websites, WordPress websites, Shopify stores, mobile app development, SEO service, google ads, social media marketing and management, digital marketing and graphics design. Our experts with years of experience and passion for digital trends make us top players in the industry ahead of the competition. We are proud of creating an essence for a small and mid level startup showcasing the products or services by creating their branding, crafting the unique website until reaching their right audience with digital marketing.
    26 works in Online Advertising
    Located in Mobile, United States (+72)
    From €3,000 for Online Advertising
    Worked in Others (+35)
    Speaks English
    11-50 members
  • 5
    (4 reviews)

    Data-Driven Return On Investment Delivered by Our Obsessed Quants. Quantikal is a data-driven perfor

    Quantikal is a data-driven performance marketing agency. We help clients scale their business through profitable digital ad spending by constantly obsessing over clients’ key metrics. Quantikal’s experience working in diverse online companies in marketing roles including media buying allows us to provide solutions in the ever-demanding increase of marketing performance, doing more with less thus becoming a strategic growth partner. We are Great Place To Work certified.
    2 works in Online Advertising
    Located in Aventura, United States
    From €1,000 for Online Advertising
    Worked in Clothing & Accessories (+1)
    Speaks English, Spanish
    11-50 members
  • Marketing Ignite Co. Ltd. is Thailand’s pioneer in digital marketing services with experience since 1998. We have helped over 200 companies world-wide with their digital marketing strategy and sales conversions. Digital marketing strategies include Search Engine Optimization (SEO), SEO Audits, Pay-Per-Click in Google Ads, Facebook Ads, LinkedIn Ads, Yahoo/Bing PPC and other PPC networks, Lead Tracking/Marketing & Sales Automation, Online Media Buying, Social Media Strategies, Consultation, Web Copywriting, and Website Performance Analysis. Most of our clients are in the United States, Europe, Singapore, Hong Kong and Thailand. Why Select Us: Google Ads certified partner. We have been rated as the #1 SEO and PPC agency in Thailand by 10SEOs.com. We can demonstrate a proven and successful track record. Check out some of our satisfied clients and case studies: www.marketingignite.com/testimonials www.marketingignite.com/case-studies In-depth, up to date knowledge and experience since 1998. We are senior digital marketing professionals.  Worked on over 200 projects ranging from big corporate clients like Thai Airways, Mercedes, Volvo, Cisco to SME's. Professional services and long-term relationships. Most of our clients work with us for 5 years or more. All strategies are white hat and search engine compliant. Always up to date: We continuously test and research this ever-changing industry (to help maximize each client’s performance). Custom tailored campaigns based on your specific requirements and needs Our difference is that we can help you save tremendous amount of money from all digital advertising. We have developed our own lead tracking, marketing and sales automation platform called Lead-IQ.            https://www.marketingignite.com/lead-tracking-marketing-sales-automation-system/ (you can also read more here lead-iq.com), thus boosting the ROI from all campaigns. Quick & Reliable Support - Chat/Email/Phone support (Mon-Friday). We always go the extra mile for the client to achieve success in our projects. See clients testimonials page. We are transparent, focus on the client first, integrity & accountability is very important for us. We do not lock our clients into yearly contracts. We do not need it as most clients work with us for many years in a win-win relationship.
    3 works in Online Advertising
    Located in Bangkok, Thailand (+1)
    From €1,000 for Online Advertising
    Worked in Others (+1)
    Speaks English, Swedish(+1)
    11-50 members
  • (0 review)

    Clarity is the new currency.

     Brainchild is a next generation agile ad agency founded to meet the needs of companies and clients who are curious about new ways to win. Our core strength is turning daunting complexity into persuasive simplicity. Founded by an international-award-winning creative director and a direct response specialist, Brainchild builds strategic ... see more
    Looking for work in Online Advertising
    Located in San Francisco, United States
    From €10,000 for Online Advertising
    Worked in Automotive (+1)
    Speaks English
    1-10 members
  • (0 review)
    Witness the power of cutting-edge marketing techniques that will set your brand apart from the competition. MarketingGuru offers a comprehensive suite of award-winning digital marketing services. From result-driven social media campaigns to SEO strategies that guarantee visibility, we leave no stone unturned in propelling your brand's growth. Our expertise spans across industries, and our commitment to excellence shines through every project we undertake.
    Looking for work in Online Advertising
    Located in Bangkok, Thailand (+2)
    From €1,000 for Online Advertising
    Works in multiple industries
    Speaks English, Thai
    11-50 members
  • (0 review)
    Driving your online success with 104 years of experience.   Your online success goes beyond search rankings. True results are comprised of hitting your goals, nurturing relationships and increasing brand exposure.   Don’t settle for a one-size-fits-all digital marketing campaign--collaborate with a team that can customize the perfect campaign to fit your needs.   When you work with us, you’ll get: Free Consultation & Site Audit Your Own Account Manager Assigned to Your Campaign Monthly Reports Based on Specific KPIs for Your Business  
    Looking for work in Online Advertising
    Located in Irvine, United States
    From €1,000 for Online Advertising
    Works in multiple industries
    Speaks English
    11-50 members
  • 5
    (5 reviews)

    "Good Design is Good Business!"

    DE: GoldenWing ist eine dynamische Webentwicklungs- und Digitalmarketing-Agentur, die auf innovative, kundenorientierte Lösungen spezialisiert ist. Mit einem Team aus kreativen Köpfen und technischen Experten gestalten wir digitale Erlebnisse, die Marken von der Masse abheben. Unsere Dienstleistungen umfassen maßgeschneidertes Webdesign, fortschrittliche SEO-Strategien und zielgerichtetes Online-Marketing, die alle darauf ausgerichtet sind, unsere Kunden vorwärts zu bringen und ihre Sichtbarkeit im digitalen Raum zu maximieren. Bei GoldenWing verbinden wir Ästhetik mit Funktionalität, um beeindruckende, benutzerfreundliche Websites zu schaffen, die nicht nur ansprechend sind, sondern auch Ergebnisse liefern. EN: GoldenWing is a dynamic web development and digital marketing agency specializing in innovative, customer-centric solutions. With a team of creative minds and technical experts, we design digital experiences that set brands apart from the crowd. Our services include customized web design, advanced SEO strategies and targeted online marketing, all designed to move our clients forward and maximize their visibility in the digital space. At GoldenWing, we combine aesthetics with functionality to create stunning, user-friendly websites that are not only engaging but also deliver results.
    3 works in Online Advertising
    Located in Vienna, Austria (+2)
    From €3,000 for Online Advertising
    Worked in Industrial Goods & Services (+8)
    Speaks English, German(+1)
    11-50 members
  • 4.2
    (4 reviews)

    Digital Marketing Agency in California

    Recommended
    Nexus5 Agency is a top digital marketing agency in San Francisco, California that specializes in helping businesses grow online. Our team of experts provides innovative and results-driven solutions that are tailored to meet your specific needs. From SEO to social media marketing, and paid advertising, we've got you covered. We pride ourselves on delivering exceptional results that help our clients achieve their business goals and stand out in today's competitive digital landscape. Let us help you take your online presence to the next level and drive more traffic, leads, and sales to your business.
    Looking for work in Online Advertising
    Located in San Francisco, United States
    From €1,000 for Online Advertising
    Works in multiple industries
    Speaks English
    11-50 members
  • 4.5
    (8 reviews)
    Somos una empresa de diseño web y marketing online con 15 años de experiencia. Somos de León, pero en los últimos años hemos comenzado nuestra expansión internacional y contamos con una sede en Medellín (Colombia) y otra en Los Ángeles (Estados Unidos). Nuestro propósito siempre ha sido integrar a las empresas en el mercado online ayudándolas a aprovechar las oportunidades que ofrece Internet para mejorar los resultados de su negocio. Aunque contamos con todo tipo de empresas entre nuestros clientes, lo cierto es que la gran mayoría son autónomos, microempresas y pymes. Uno de nuestros principales valores es el trato cercano y personalizado que ofrecemos a todos nuestros clientes Para muchos de ellos Internet es un mundo desconocido en el que están dando los primeros pasos con Dayvo, por eso, es importante para nosotros, no solo ofrecerles el mejor servicio sino además acompañarles y asesorarles de la mejor manera durante todo el camino online. Ofrecemos servicios de diseño de páginas web personalizadas, desarrollo de tiendas online, gestión de redes sociales corporativas, posicionamiento SEO en buscadores y publicidad en Google (SEM) y en redes sociales. Para dar servicio a todos nuestros clientes contamos con un equipo formado por más de 160 trabajadores especializados en diseño y estrategias de marketing online. Durante estos años estamos orgullosos de haber conseguido importantes partnerazgos con 3 de las más destacadas compañías del ámbito digital.  Así, somos empresa partner de Google, Microsoft y Prestashop.  
    9 works in Online Advertising
    Located in León, Spain (+2)
    From €1,000 for Online Advertising
    Worked in Marketing & Advertising (+13)
    Speaks Spanish, English
    51-200 members
  • 5
    (23 reviews)

    We craft videos that drive results

    Top awarded
    We're a creative video agency that helps corporations and brands find their voice, sharpen their profile and connect with their target audience. With the right content, an introduction video can describe in short what your culture is all about and why you care. But we’re aiming for more than that. Our mission is to create beautiful artistic videos that will evoke trust,inspire, and explain to people why your company should matter to them. That's why CRFT takes a different approach toward creative inspirational videos.
    2 works in Online Advertising
    Located in Irvine, United States (+2)
    From €1,000 for Online Advertising
    Worked in Banking & Financials (+8)
    Speaks English
    1-10 members

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