An ad agency, or advertising agency, is a company that plans, creates and manages advertising for clients. Clients hire it for skills or capacity they lack in-house. Many agencies focus on Meta ads, running Facebook and Instagram campaigns for brands that want results without building a team.
Types of ad agencies
| Type | What it does | Fits when |
|---|---|---|
| Full-service agency | Strategy, creative, media buying and reporting across channels | A brand wants one partner for everything |
| Creative agency | Concepts, copy, design and video | The brand has its own media buyers |
| Media buying agency | Buys and optimizes paid placements | The brand has creative but not the buying skill |
| Performance or paid social agency | Runs paid campaigns toward sales or leads and reports on them | A brand wants results tied to numbers |
| Freelancer or boutique | One person or a small team on a narrow job | The budget is small and the scope is clear |
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Try for Free ($0 Trial)What a Meta ads agency does
- Strategy. Picks goals, audiences and a campaign structure.
- Creative. Briefs or produces the images, videos and copy, and tests new versions.
- Media buying. Builds campaigns in Ads Manager, sets budgets and bids, and adjusts them as results move. This is the daily work of a media buyer.
- Tracking. Checks that conversions reach Meta, through the Pixel and Conversions API.
- Reporting. Shows the client results such as return on ad spend and the other key performance indicators the two sides agreed on.
Agencies usually work inside the client's own ad account, so the client keeps ownership of the account, its history and its data. Many agencies manage dozens of accounts at once, which makes consistent naming, shared reporting and clear approval steps as important as the ads themselves.
How agencies charge
Common models are a flat monthly retainer, a percentage of ad spend, an hourly or project fee, and performance-based pay tied to results. Which one fits depends on how much spend the agency manages and how much creative work is included. Our answer on Facebook ads management fees breaks down what each model costs.
Agency, in-house team or AI
- Count the spend. At small budgets a retainer can take a large share of what you invest in ads.
- List the skills. Creative, buying, tracking and reporting are four jobs. Check which ones you can cover.
- Check the fit. Ask for experience in your industry, case studies with numbers and access to your own account.
- Compare automation. AI tools now handle part of the daily buying work. Our answer on Meta ad automation versus outsourcing compares the two.
- Agree on reporting. Decide how often and in what form you will see results before you sign.
- Set the exit terms. Know the notice period, and confirm that creative files and account access stay with you.
Example. A bike shop spends $4,000 a month on Meta and is quoted a retainer of $1,200 plus 10% of ad spend, or $1,600 a month in total. That is 40% of its ad budget on top of the budget itself. The owner compares an in-house hire, a freelancer and software, then keeps a freelancer for creative and uses automation for daily budget changes.
In Madgicx. Madgicx is built for agencies running many Meta ad accounts and client reports. One-Click Report and dashboards pull Meta, Google Ads, TikTok, Shopify and Klaviyo data into one place, with reports agencies can share with every client by link or PDF.
FAQ
What does an ad agency do?
An ad agency plans and runs advertising for clients. Depending on the type, that covers strategy, creative, buying ad space, tracking and reporting.
What is a Facebook ads agency?
It is an ad agency that specializes in Meta ads, running campaigns on Facebook and Instagram. It builds and optimizes campaigns, produces creative and reports on results.
How much does an ad agency cost?
Costs vary by model, spend and scope. Retainers, percentage-of-spend fees, hourly rates and performance fees are all used, so get the model and what is included in writing.
Do I need an agency for Facebook ads?
Not always. Small advertisers with time and a simple offer can run campaigns themselves or with automation. An agency helps when spend, skills or capacity outgrow the team.
Should an agency use my ad account?
Yes, ideally. Working in your account, with you as owner, means you keep the account, its history and its data if you change agencies.
Related
- Related terms: Media buyer, Return on ad spend, Marketing dashboard, Ad account
- In depth: How to choose a good ad agency
