What’s The Difference: PR Firms & Advertising Agencies

If you’ve ever watched a brand launch a new product, handle a crisis, or run a catchy commercial, you’ve probably seen both public relations (PR) and advertising in action. But while these two often work side by side, they’re not the same.

So, what exactly is the difference between a PR firm and an advertising agency?

Let’s break it down in a way that’s simple and easy to understand—perfect for beginners who are curious about the marketing world or considering working with one of these services.

1. What Is a PR Firm?

A PR firm, or public relations firm, helps a company build and maintain a positive public image. They focus on earned media—meaning they don’t pay for space or airtime, but work to get coverage through stories, interviews, or social media buzz.

Think of a PR firm as your brand’s storyteller and reputation manager.

What PR firms do:

• Write and distribute press releases

• Arrange media interviews and press coverage

• Manage crisis situations (like product recalls or negative press)

• Run public events or community outreach

• Manage social media presence and brand reputation

Example: If a fashion brand wants to be featured in Vogue or interviewed on a podcast, a PR firm will pitch that story and handle the media outreach.

2. What Is an Advertising Agency?

An advertising agency focuses on paid media. That means creating and placing ads across platforms like TV, radio, newspapers, websites, and social media.

They are your brand’s creative and promotional powerhouse—their job is to create eye-catching campaigns that grab attention and drive sales.

What ad agencies do:

• Develop marketing strategies

• Design and produce advertisements

• Buy ad space in media (TV, digital, billboards, etc.)

• Create branding assets like logos, taglines, and jingles

• Run targeted social media and digital ad campaigns

Example: If that same fashion brand wants a billboard in Times Square or a Facebook ad promoting a sale, an advertising agency handles that.

3. Key Differences at a Glance

Feature	PR Firm	Advertising Agency
Type of media	Earned or owned	Paid
Main goal	Build reputation & trust	Promote products/services
Control over the message	Less control (journalists/media choose what to publish)	Full control over the ad content
Credibility	High (people trust news stories more than ads)	Medium (ads are seen as sales-focused)
Cost	Often lower upfront (but takes time)	Often higher (pay for space/time)
Measurement	Media impressions, sentiment, public response	Clicks, conversions, ROI

 

4. When Should You Hire a PR Firm?

You may want to work with a PR firm when:

• You’re launching a new business or product and want media coverage

• You need to build long-term credibility

• You’re managing a crisis and need help controlling the narrative

• You want to strengthen your online reputation

• You want to grow through media partnerships or public exposure

PR is especially powerful for brands that want to tell a story or establish themselves as experts in a certain field.

5. When Should You Hire an Advertising Agency?

You may want to work with an ad agency when:

• You have a specific campaign or promotion to push

• You want quick visibility through ads

• You need creative design and branding help

• You want to target specific demographics or audiences

• You have a set budget for paid marketing

Advertising works great when you’re focused on sales, reach, and short-term impact.

6. Can You Use Both?

Absolutely! In fact, many successful businesses use both PR and advertising to get the best of both worlds. PR builds trust and relationships over time, while advertising delivers fast visibility and sales.

Example Combo:

• A PR firm gets you interviewed by a well-known podcast.

• An ad agency runs Facebook ads promoting the podcast episode to your audience.

Together, they build awareness and drive action.

7. PR vs. Advertising: A Simple Analogy

Here’s a quick way to think about it:

• PR is like someone talking about you in a great way at a party (credible and impressive).

• Advertising is like you talking about yourself to everyone at the party (controlled and direct).

Both are useful—it just depends on your goals.

One Great Thing They Have in Common: They’re Essential!

While a PR firm and an advertising agency both help businesses grow, they do it in very different ways. PR focuses on reputation, trust, and earned attention. Advertising focuses on creative campaigns and paid visibility.

If you’re building a brand or launching something new, understanding the difference can help you choose the right partner—or combination of partners-to reach your goals.

Whether you’re a startup founder, marketer, or just curious, knowing the roles of PR and advertising will help you make smarter decisions when it comes to promoting your message.