Online Advertising Agencies in Santa Monica

Ninja Promo is a full-service digital marketing company built around subscription-based dedicated marketing teams. Instead of traditional agencies that bill per project or freelancers with limited bandwidth, you get a stable cross-functional team on a flexible monthly subscription.

CMO-on-demand, strategists, project managers, designers, content creators, media buyers, and analysts work as one unit, giving you predictable costs, faster execution, and the impact of an in-house team without the hiring overhead.

We deliver full-cycle digital marketing across all key channels and disciplines. From market research, positioning, and brand strategy to design, creative and content production (including video), performance marketing, SEO, paid advertising, content marketing, social media, influencer marketing, PR, web and landing page development, and analytics - we run your marketing operations end to end under one roof. Our integrated approach keeps strategy, creatives, and media aligned, so every campaign supports your growth targets, whether you need one core service or a complete marketing transformation.

We work with companies across multiple industries because we believe real marketing expertise is not about being locked into a single niche, but about the ability to research, understand, and win in any market. Our teams follow a research-driven playbook: deep industry and competitor analysis, understanding regulations and audience behavior, and rapid testing to find what truly converts. This approach has already delivered proven results in B2B and SaaS, crypto and Web3, fintech and financial services, IT and software, gaming and iGaming, e-commerce, real estate, healthcare, forex, AI and more, with new verticals constantly added to our portfolio. Cross-industry experience lets us transfer successful tactics from one sector to another, giving our clients an advantage that single-industry agencies simply cannot provide.

Delante is an award-winning international Search Agency specializing in SEO, SEM, and AISO (AI Search Optimization).

With offices in Kraków, New York, London, Italy, Spain, we support global brands across 29 global markets.

Our +65 experts create tailored strategies focused on business impact - not vanity metrics.

We know that marketing has to pay off. That’s why we track ROI, ROAS, and CAC to ensure our clients’ investments generate measurable growth. From increasing visibility to scaling international sales, our result-oriented and data-driven approach makes us the trusted partner behind the success of global e-commerce and B2B leaders.

Our strategies have earned us recognition from Top International Awards, including:

• 🏆 Forbes Diamonds 2025
• 🏆 Deloitte Technology Fast 50 Europe
• 🏆 Financial Times FT1000
• 🏆 Google Premier Partner - Top 3% of Agencies Worldwide 🌍
• 🏆 Global Search Awards 2024 - SEO Agency of the Year
• 🏆 European Search Awards 2024
• 🏆 Global Agency Awards 2024 - Best B2B SEO Agency of the Year
• 🏆 Global Digital Excellence Awards 2024

More visits, more sales - let’s get you in the lead!

Forward is our only direction - because Delante means Forward. It’s our can-do-attitiude mindset.

Noble Publishing Hub is a full-service book writing and publishing company dedicated to helping authors succeed. We provide expert ghostwriting, editing, publishing, and marketing services while ensuring you retain 100% ownership and royalties. From fiction and nonfiction to children’s books, we bring untold stories to life and help authors build powerful, lasting brands in the publishing world.

Best ranked and rated SEO company. See 820+ case studies of wins for our clients. 250+ team members. Work with an SEO services company that gets results.

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.

Write to us via email or WhatsApp so we can respond to your inquiries and provide you with more information!

⚠️ This is the only way we have to contact you ⚠️

Do you have a website or online store and want to attract more people to generate inquiries or sales? Would you be interested in having a better online presence on your social media? Do you need to delegate the design and writing of posts?

We help your company increase its sales through Digital Marketing.

Who are we?

We are a digital marketing agency with vast experience in Google, Social Media, and Email Marketing.

Why should you choose us?

• We are Google Partners: This means that Google recognizes us as an expert agency with experience in its advertising platform.
• Experience: We have been working in Digital Marketing for over 10 years. We have managed over 30 million dollars in digital media, in Argentina, Colombia, Brazil, India, Mexico, Costa Rica, etc.
• Leads and Sales: We specialize in Performance Campaigns, meaning that when we activate campaigns, we focus on generating leads and sales (contacts, phone calls, store visits, online store sales, etc.).
• Service Vocation: We build relationships with our clients and advise them on matters that go beyond Google, Social Media, or Email Marketing, because we are interested in the well-being and progress of each company.
• We adapt quickly: We have clients from various sectors and in different countries (Central America, Argentina, India, Mexico). We study each company, its services, and its environment.

Jeanette Gianfreda, founder at Digital Agency JG:

“I created Digital Agency with the goal of helping small and medium-sized businesses promote their business online and thus achieve increased sales month by month”

“I specialized in the development and implementation of Digital Marketing strategies for companies, particularly in Google Ads for over 15 years.”

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

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In a world where you can be anything; don’t be boring.


We'll give 'em something to talk about!

After Comma is a boutique PR agency that turns ideas into stories and stories into results. We craft strategic PR that works across media and social platforms, create content that captures attention, and support brands at every stage of growth.

Our approach combines creativity, precise strategy, and deep audience insight. We believe PR is not just communication—it’s giving a brand a voice people want to hear.

Desverto is a design-focused agency providing services tailored to Amazon sellers, helping them enhance their product listings and storefronts. Their offerings include listing image design, A+ content creation, storefront design, product descriptions, and packaging design. Desverto’s mission is to create compelling visuals and content that elevate their clients' brand presence, resulting in increased sales and profitability. The company also focuses on optimizing Amazon posts, solving listing issues, and creating a consistent brand identity.

I Think An Idea provides you best & affordable SEO services in USA. We are here to increase your online presence using our high quality and result oriented Internet marketing services & strategies.

Supported by a strong foundation of design, event planning, direct sales, marketing and business management, we are able to offer a full service, digital agency. We’ve been exactly where you are and understand what’s needed for success. Whether it is conceptualization, consultation, strategy formation or implementation, our goal is to help you grow your business. Use our experience and our large network to your advantage.

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.

American Publishers Empire handles every step for your book, providing expert guidance from your initial draft to the final printed book, ensuring a seamless and professional book publishing experience. We are authors and publishing professionals who have walked in your shoes. Our team has guided countless manuscripts to success, providing the expert support you need to thrive. We combine deep industry knowledge with a passion for stories, working with you to honor your vision while ensuring your book reaches its full market potential.

With over 10 years of unwavering commitment, we've carved our niche in delivering exceptional PPC marketing services. Our exclusive focus ensures unparalleled expertise across diverse industry segments.

Why choose Excella PPC:

Direct Communication: You'll have direct access to the professional managing your ads, available for discussions and reporting at your convenience.

Experience & Ethics: Our team comprises seasoned agency partners with a wealth of experience; we uphold ethical standards and never utilize client budgets for training.

Competitive Pricing: We provide competitively priced services without compromising quality by eliminating unnecessary intermediaries, adopting remote work practices, and benefiting from favourable tax rates in our home country.

Long-Term Commitment: As a boutique agency, we prioritize long-term partnerships with a low client turnover rate. Our primary focus is client satisfaction, positive reviews, and expanding our portfolio.

Feel free to contact us with your inquiries!

Quantum IT Innovation is a world-class IT firm specializing in Business optimization solutions, Web Development, App Development, AI, & Digital Marketing for B2B and B2C agencies and companies in the USA, UK, Canada, Ireland, UAE, Australia, the Middle East, India, & across the globe. Our expertise extends to working with startups and global enterprises, crafting innovative products that drive growth and success. With a dynamic team of over 200 talented professionals, we offer end-to-end digital engineering solutions that align with your strategic goals.

Why Partner with Us?

With nearly a decade of industry experience and a portfolio of prestigious clients, Quantum IT Innovation stands at the forefront of digital innovation. Our commitment to excellence is reflected in:

1,000+ clients served globally

2,000+ software solutions delivered

$800 million+ raised in investments for startups

5+ innovation hubs driving cutting-edge research and development

At Quantum IT Innovation, we are dedicated to building transformative digital products that elevate user experiences and propel businesses forward. Join us in shaping the future of technology.

Our Services

- Mobile app development

- Web app development

- Artificial intelligence consultancy

- Android App Development

- Professional SEO Services

- Digital Marketing

- Custom app development

- iOS App Development Company

- Robotic Process Automation (RPA)

- Social Media Marketing Services

A fully-managed growth service where Coast's senior operators become an extension of the client's team. We handle the entire growth lifecycle, from strategy and compliance to execution and reporting, allowing founders to focus on their product and operations.

By focusing on aggregating conversion signals and a consolidated structure, we are able to test multiple creative variables at once without reducing or fragmenting our conversion signal.

We work with D2C brands from Seed to Series C, driving growth through paid ads, creative production, and growth design efforts (landing pages, conversion optimization, etc.)