It is the oldest joke in marketing: the agency too busy with client work to market itself. But prospects check your own channels before they get in touch, and a feed that went quiet in March tells them everything. Your social media is the one case study every lead will look at.
Here are 25 social media post ideas for marketing, web and creative agencies, grouped by what they do for your business, plus a simple weekly plan, ready-made captions, hashtags and the mistakes to avoid.
What should a marketing agency post on social media?
The short answer: results that prove you can do it, opinions and insight that show how you think, the people and culture clients will be working with, and a clear idea of who you help. Three posts a week covering that mix is enough.
Would you rather hand it over? See our white label social media management for agencies, from £99+VAT a month.
Your weekly posting plan at a glance
You do not need to post every day. Three posts a week, each with a different job, is plenty for a busy marketing agency.
A platform change, a trend or an opinion.
A case study, a number or a client win.
Team news, culture or a behind the scenes moment.
One service, who it is for and what it achieves.
Budget season, Black Friday planning, award entries and new year strategy.
A how-to or a template.
Post ideas that prove your results
Prospects want evidence, not adjectives.
Case study snapshots
The challenge, what you did and one headline number.
Before and afters
An old website beside the new one, or a rebrand side by side.
Work in the wild
Your campaign on a billboard, a bus or a client's feed.
Client wins
Their award, their funding round or their sell-out launch. Celebrate them, not you.
Results in numbers
"312% more enquiries in six months." Specific, sourced and honest.
Client reviews
Turn a five star review into a graphic. Here is how to encourage customers to leave a review.
Post ideas that share your thinking
Opinions are what make an agency memorable.
Platform updates
What changed, and what clients should do about it.
Hot takes
A clear opinion on a trend, respectfully argued.
Campaign breakdowns
Why a famous advert worked, or did not.
How-to posts
A quick tutorial or framework from your own process.
Myth busting
"SEO is dead." "You need to be on every platform."
Tools and templates
A free checklist or the tools your team relies on.
Planning prompts
Key dates and seasonal opportunities. Our 2027 social media calendar helps you plan ahead.
Post ideas that show your people
Clients buy the team as much as the work.
Meet the team
Roles, specialisms and something human.
New starters and promotions
Growth signals a healthy agency.
Behind the scenes
Shoots, workshops, whiteboards and brainstorms.
Culture posts
Away days, training budgets and how you work.
Awards and accreditations
Shortlists, wins and partner badges.
Hiring posts
Vacancies and why people stay.
Post ideas that get people talking
These keep you in the feed, so you are the first name people think of. Here is more on how to generate more engagement.
Polls
"Which platform will you invest in most next year?"
This or that
Two logo options or two headlines, and a vote.
Industry debates
AI in creative work, remote versus office, pitching for free.
Founder posts
Lessons learned running the agency, shared from a personal profile.
Throwbacks
Your first website or an early logo. Humility is likeable.
Ask us anything
Invite questions about marketing and answer the best ones.
Marketing agency captions you can use
Swap in your own details and they are ready to go.
312% more enquiries in six months 📈
New website, a tighter message and a search campaign built around what customers actually type.
Want to know how? Message us for the full case study.
Instagram changed its rules again this week.
Here is what it means for small brands, in three points.
Save this for your next planning session.
Help us settle a studio argument.
Headline A or headline B?
Vote in the comments.
Hashtags for marketing agencies
Use two or three of these, then add hashtags for your town and the services you want more of.
- #MarketingAgency
- #DigitalMarketing
- #AgencyLife
- #CaseStudy
- #MarketingTips
- #SocialMediaMarketing
- #CreativeAgency
- #Branding
- #SEO
- #B2BMarketing
Marketing agency social media dos and don'ts
Do
- Lead with client results, not your own cleverness
- Get client approval before sharing work or numbers
- Reply to comments and messages quickly, as questions turn into enquiries. Our community management service can help
- Post to your Google Business Profile as well as your social channels
- Ask every happy client for a review
Don't
- Let your own channels go quiet. It is the first thing prospects check
- Share figures you cannot back up
- Post only about yourselves. Teach, celebrate clients and give opinions
- Post only when things are quiet. Consistent feeds win more enquiries
- Rely on stock photos. Real photos of your own team and work are more convincing
Marketing agency social media FAQs
What should a marketing agency post on social media?
A mix of case studies and results, opinions and how-to content, team and culture posts, and conversation starters. Aim for posts that prove your results, share your thinking, show your people and get people talking.
How often should a marketing agency post on social media?
Three times a week is plenty. Consistency matters more than volume, so a steady three posts a week beats ten in one week followed by silence.
Which social media platforms are best for marketing agencies?
How can a busy agency keep its own social media going?
Treat yourselves as a client with a monthly plan, or outsource it. Many agencies white label their social media to a specialist so client work never crowds it out.
Should agency founders post on their personal LinkedIn?
Yes. Personal profiles get far more reach than company pages, and people buy from people. Share company posts with your own comment.

