How to Use Social Media to Grow Your Marketing Agency

More often than not, digital marketing agencies completely forget about their own social media presence.

The truth is, your potential clients are likely to dig into your social media channels long before they hire you.

And if they are actively looking for solutions to their social media problems, using the right keywords on social media can help you start building trust and credibility before they even know they're talking to an agency.

So instead of vying exclusively for your client's praise, why not put your heads together with your team and create a social presence that even competing agencies will want to copy?

We know you're tight on time and would rather use your creativity to boost your clients' social media. But think of the long-term gain. The number of digital marketing agencies will only continue to grow, and you need to set yourself apart.

The A-C-E framework for marketing agencies

The secret to a successful social media presence for your agency is to focus on these three core pillars:

1. Authenticity: Show the real people behind your brand, and build trust.

2. Consistency: Stay top-of-mind with a regular posting schedule and a cohesive brand voice.

3. Expertise: Position your agency as an industry leader by sharing valuable knowledge.

When you master these three principles, your social media channels will do more than just exist—they’ll become a powerful lead-generation engine.

Let’s get into how to implement each part of the framework.

1. Authenticity: Show the people behind the brand

Authenticity is a core part of Sendible's brand personality (R.E.A.L.), and for good reason: people connect with people, not logos.

By showing the faces behind your agency, you build an instant connection and humanise your brand. This transparency makes your agency feel more approachable and trustworthy.

In fact, we've seen massive success on our own Threads account by embracing an unfiltered, authentic voice that truly connects with our audience.

• Behind-the-scenes content: Show your team's brainstorming sessions, office life, or how a project comes together.

• Employee spotlights: Celebrate your team members with short interviews or "a day in the life" videos. This not only builds team morale but also gives potential clients a glimpse of the talent they'll be working with.

• Show off your personality: Don't be afraid to be real. Use your authentic voice. Test on appropriate channels (for example, Threads and TikTok), unfiltered tone, reactive content, and different personalities of your social media managers.

Roys Digital Media is doing a great job ensuring that their personality is recognisable in every piece of content they publish. Just take a look at the style of this video and the copy.

2. Consistency: Build a cohesive brand presence

Consistency is about more than just posting regularly. It’s about having a clear, unified voice and look. When your potential clients see you online, they should immediately recognise your brand, no matter the platform.

• Establish a consistent brand voice: Decide on a tone that reflects your agency’s personality. Once you have a voice, stick to it across all your social media content, from captions to video scripts. 

• Use branded templates and guidelines: Create a set of templates for your visuals, including fonts, colours, and layout. And don't stop there. Write clear guidelines for your photos and videod. This ensures your content is instantly recognisable and builds a professional brand image.

• Maintain a consistent posting schedule: This is where Sendible’s features can help. Smart Queues are perfect for planning evergreen content and scheduling it up to two years in advance. Just imagine having your content calendar packed with regular, non-time-sensitive content that you can recycle once the queue is done. We're talking customer testimonials, case studies, quotes, and audience pain points. This ensures your calendar is packed and your presence is consistent, freeing up time to hop on trends and post reactive content at the moment.

The digital marketing agency Oh My Digital is an excellent example of consistency. They focus on sharing useful, thought-provoking content and maintain a coherent brand image and voice across all their accounts.

3. Expertise: Become a trusted industry leader

You’re a marketing agency, so you're already an expert. Now it's time to prove it.

Your social media is the perfect portfolio to showcase your knowledge, skills, and results without a hard sell.

• Employee advocacy: Your employees are your best brand ambassadors. At Sendible, we empower our colleagues to share content on their personal LinkedIn profiles. We even created a custom AI assistant to help our team write content, and our Content Library feature allows everyone to grab and schedule company content with just a few clicks.

• Share your knowledge: Create educational content like how-to guides, quick tips, and industry insights. This provides value to your audience and positions you as a go-to resource.

• Use case studies: Showcase your client wins as case studies. Remember to include the client's pain points, the strategies you used, and the data-backed results. This is the most powerful form of social proof. The agency Onlinedrea created a series of "Client Showcases" as a powerful way of showing prospects how strong their social media marketing strategies are.

• Repurpose content: Make the most of your expertise by repurposing long-form content. Turn a blog post into a carousel on Instagram, a YouTube video into a series of short-form clips for TikTok and Threads, or a case study into an infographic on LinkedIn.

Goodby, Silverstein & Partners (GS&P) does a great job of this. They keep their fingers on the pulse of the industry and share how their work is changing the way people interact with products. They also monitor brand mentions and reshare them on platforms like Facebook and X, which is a great form of self-promotion that isn't pushy.

Content pillars and post ideas for agencies

Now that you have the strategic framework, the next step is to create content pillars.

Here are some social media agency-appropriate content pillars and post ideas you can use to attract new clients and build your brand. We also highlighted how it fits into the A-C-E framework.

1. Educational tips and tutorials (Consistency and Expertise)

This type of content positions your agency as a thought leader and a valuable resource. By offering helpful advice, you build trust with your audience before ever making a sale. Tips and most of the tutorials count as evergreen content that you can schedule months or even years ahead! 

And this will allow you to populate your Queues and calendar whenever inspiration strikes, ensuring consisten presence that matters.

• "5 Instagram Reels ideas for small businesses this month" (carousel).

• Short-form video explaining a trending platform update (e.g., TikTok SEO).

• Quick tips for writing captions that drive clicks.

2. Portfolio highlights and case studies (Expertise)

Showcasing your work with real results is the ultimate proof of your credibility and expertise.

• Before-and-after visuals of client accounts.

• A mini case study carousel explaining, "How we grew X brand’s engagement by 150% in 3 months."

• Client video testimonials.

3. Behind-the-scenes (BTS) agency life (Authenticity)

This content humanises your brand, makes you relatable, and creates stronger connections with your audience and potential new hires.

• A "day in the life" Reel of a social media manager.

• Snapshots of team brainstorming sessions.

• Funny bloopers from video shoots.

4. Industry news and trend insights (Expertise)

This pillar shows that your agency stays ahead of the curve. Sharing valuable insights demonstrates authority and keeps your audience coming back for more. Just look at what Pretty Little Marketer and Girl Power Marketing are doing on LinkedIn (yes, LinkedIn). They have gained hundreds of thousands of followers because they focused on sharing social media news.

• "3 updates you need to know from last week’s Meta announcement."

• A carousel debating, "Hot trend: AI-generated social content — is it worth it?"

• A weekly roundup of trending TikTok sounds.

5. Social proof and testimonials (Consistency and Expertise)

Nothing builds credibility faster than hearing from happy clients. This content increases trust and helps reduce objections for new prospects.

• Short testimonial graphics with client quotes.

• Video interviews with happy clients.

• Screenshots of positive DMs and reviews.

6. Thought leadership and opinions (Expertise)

Differentiate your agency with unique perspectives and bold statements that make people think.

• A LinkedIn post on, "Why follower count is a vanity metric in 2025."

• An opinion poll asking, "Do you think Threads will replace X for brands?"

• An "unpopular opinion" carousel with your agency’s insights.

7. Interactive content (Authenticity)

Interactive content boosts engagement, encourages participation, and helps with algorithm visibility.

• Instagram Stories with a poll like, "This or That: Which ad style do you prefer?"

• Polls on LinkedIn about content types.

• A "Caption this" post with a fun, industry-related image.

8. Tips for business owners (your target clients) (Consistency and Expertise)

Speak directly to the pain points of your ideal clients, showing empathy and providing solutions. Needless to say, this is 

• A post on "3 content mistakes small businesses make (and how to fix them)."

• A carousel: "Struggling with low engagement? Here’s what you can try today."

• A short video tip: "How to repurpose one post into five."

9. Agency culture & values (Authenticity)

This content attracts clients who are aligned with your values while also making your agency appealing to top talent.

• Celebrate work anniversaries or birthdays.

• Share your company values in a visual series.

• A post about a fun Friday team ritual (e.g., coffee runs or brainstorming games).

10. Service & offer highlights (Expertise)

This pillar is designed to convert followers into clients by clearly explaining what you offer.

• A carousel breaking down, "What’s included in our Social Media Starter Package."

• A side-by-side breakdown: "DIY social media vs. done-for-you service."

• A limited-time offer graphic: "3 free audits this month — DM us to claim."

The best social media channels for your marketing agency

You don't need to be on every single social media platform. A strong presence on a few key channels beats a weak one across all of them. It’s better to be strong on 2–3 channels where your target clients actually spend time.

• LinkedIn: The ideal B2B platform for client acquisition.

• Instagram & TikTok: The home of visual storytelling for showcasing creativity and culture.

• YouTube: Best for longer-form tutorials and building SEO authority.

• Threads & X: Great for quick takes, industry news, and trend commentary.

Remember, quality beats quantity.

Summing up

Promoting your digital marketing agency is hard work. But using various social media channels can help you get the word out about your business.

Especially in today's AI world, when organic traffic is going down.

I know what you mean - but our impressions have doubled!

Yes, but you can never compare an impression from an out-of-context answer to a how-to query and your unhinged Thread that shows your agency's values and personality.

*This article was created in collaboration with blogger Evie Harrison.