Social media never sits still. New platforms pop up, algorithms change, and the way people consume content shifts almost overnight. For brands, that makes it harder than ever to keep up, but it also means there’s a huge opportunity to stand out with the right approach. That’s where a good social media agency comes in.

From TikTok trends and Instagram Reels to LinkedIn strategy and YouTube storytelling, these agencies know how to take an idea and turn it into something that really connects with people. And if you’re looking for the best of the best, New York is packed with creative talent.

Whether you’re a fashion label, a fast-growing start-up, or an established global brand, the city is home to agencies that can help you build campaigns that get noticed, drive engagement, and actually deliver results.

So, we’ve rounded up 10 of the top social media marketing agencies in New York,  each with their own style, specialisms, and track record of helping clients grow.

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1. Trendy Grandad Social Media Marketing Agency

A creative video production and social-media marketing agency born in NYC. They're experts in bold, high-retention TikToks, Reels, YouTube Shorts, and social media marketing. Known for cinematic storytelling, animation, and strategy, they help brands cut through the noise and generate measurable results.

2. Cool Nerds Marketing‍

A full-service CPG-focused social media marketing agency known for compelling content creation, influencer programs, paid social, and platform-native videos (Reels, TikTok, Shorts). They emphasize storytelling that builds brand recall and results, especially for food, beverage, and beauty brands.

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3. Socialfly‍

A New York-based, female-founded agency specializing in influencer marketing and paid social. They pair polished video content with campaigns that resonate deeply in fashion, beauty, and DTC sectors.

4. SmartSites‍

A full-spectrum digital marketing agency with deep expertise in PPC and eCommerce social advertising. Known for data-driven ad campaigns across Meta, Google, and beyond.

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5. The Charles NYC

A boutique creative and digital agency serving luxury, lifestyle, and fashion brands. They interweave influencer collaborations, high-design aesthetics, and strategic content for upscale campaigns.

6. Sachs Marketing Group

A boutique shop offering tailored social ad campaigns, local reputation management, and content strategies, invaluable for SMBs aiming to grow and maintain a strong local digital presence.

7. The Snow Agency

A DTC and ecommerce specialist. They use UGC-style creative, TikTok/Meta campaigns, and rigorous A/B testing to deliver optimised, conversion-driven content.

8. BAMF Media

Known as “growth hackers,” they focus on building personal brands and B2B visibility. Their strength lies in LinkedIn strategies that help executives and companies expand their social authority.
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9. Power Digital

A performance-first agency blending creative storytelling with analytics. Their services span influencer sourcing, paid ads, and deep campaign insights, ideal for brands seeking scalable outcomes.

10. Viral Nation

A globally recognised influencer marketing powerhouse. They lead celebrity and macro-influencer campaigns aimed at delivering cultural impact, brand visibility, and mainstream attention.

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Choosing the Right Social Media Agency in New York

When selecting the best New York social media agency for your business, think carefully about your goals, your budget, and the platforms that matter most to your audience. Do you need influencer marketing, video production, or full social media management? Are you looking for engagement, sales, or long-term brand awareness?

The truth is, there’s no one-size-fits-all agency. Some focus on creativity, others on data analysis and analytics, while others excel in content creation and campaign development.

What matters most is finding a partner that understands your brand, your customers, and the unique challenges of the New York market. The right agency will deliver not just likes and followers but meaningful growth, better results, and stronger connections with your audience.