By Sam Smith, Operations Head at GrowthEdge Marketing · Last updated: October 7, 2026
Marketing promotes your products to drive sales, mostly through paid and owned channels you control, such as ads, email, and your website. Public relations (PR) builds your reputation and trust, mostly through earned media and relationships you don’t control, such as press coverage and expert commentary. Marketing creates demand. PR creates the credibility that makes people believe you. Most growing businesses need both.
Many people use public relations and marketing interchangeably, which leads to the wrong budget, the wrong hires, and the wrong expectations. Below you’ll find a side-by-side comparison, clear definitions, the differences that matter in practice, where the two overlap, why the gap matters more now that people search with AI tools, and how to decide what your business needs.
In this article
- PR vs Marketing at a Glance
- What Is Public Relations?
- What Is Marketing?
- The Key Differences Explained
- Where PR and Marketing Overlap: The PESO Model
- Why the Difference Matters More in AI Search
- Do You Need PR, Marketing or Both?
- FAQs
- Marketing Creates Demand, PR Creates Trust
PR vs Marketing at a Glance
Here’s the difference between PR and marketing across nine factors.
| Public relations (PR) | Marketing | |
|---|---|---|
| Main goal | Reputation, trust and credibility | Demand, leads and sales |
| Primary audience | Many “publics”: media, customers, investors, employees, communities | Customers and prospects |
| Main channels | Earned media: press coverage, expert commentary, bylines, awards | Paid and owned media: ads, email, website, content, social campaigns |
| Control over the message | Low. Journalists decide what runs and how | High. You decide what, where and when |
| Credibility | Higher, because a third party chose to publish | Lower, because readers know it’s promotion |
| Cost model | Time, expertise and agency fees; no payment per placement | Media spend plus production; you pay for reach |
| Timeline | Builds over months; one story can keep working for years | Can deliver within days; paid results usually stop when spend stops |
| Typical metrics | Coverage quality, links, share of voice, branded search, sentiment | Leads, conversion rate, cost per acquisition, return on ad spend, revenue |
| Typical activities | Media relations, digital PR campaigns, crisis communications, thought leadership | Advertising, SEO content, email campaigns, promotions, product launches |
What Is Public Relations?
Public relations is “a strategic communication process that builds mutually beneficial relationships between organizations and their publics,” according to the Public Relations Society of America (PRSA).
Two words in that definition do most of the work. “Relationships” means PR plays a long game, built on trust rather than a single transaction. “Publics” means PR speaks to more than customers: journalists, investors, employees, partners, regulators, and local communities all shape how an organization is seen.
PR works mainly through earned media: coverage, mentions and links you persuade others to give you because your story is worth telling, rather than coverage you pay for. Typical PR work includes media relations, reputation and crisis management, and thought leadership.
Digital PR is the online form of this work. It earns coverage and links from online publications, which also strengthens search visibility. For the full picture, see our complete guide to digital PR.
What Is Marketing?
Marketing is “the activity, set of institutions, and processes for creating, communicating, delivering, and exchanging offerings that have value for customers, clients, partners, and society at large,” according to the American Marketing Association.
In practice, marketing focuses on customers and the journey from first awareness to purchase. It decides who to target, what to say, where to say it, and how to turn interest into revenue.
Marketing relies mainly on paid media (search and social ads, sponsored content) and owned media (your website, email list, blog and product pages). Because you pay for or own these channels, you control the message, the timing, and the audience. That control makes marketing measurable and scalable, and it’s why marketing is usually tied directly to revenue targets.
The Key Differences Explained
Goals: reputation vs revenue
PR’s main goal is to shape how an organization is perceived over time, while marketing’s main goal is to generate demand and sales. A PR win might be a respected trade publication quoting your CEO. A marketing win might be a campaign that fills the sales pipeline this quarter. Both help the business, on different timelines.
Audience: public vs customers
Marketing speaks to people who might buy. PR speaks to everyone whose opinion affects the organization, including people who will never buy anything, such as journalists, investors, and future employees. That’s why PR messages tend to focus on the company’s story and credibility, while marketing messages focus on the offer.
Control and credibility: earned vs paid
With marketing, you control the message, and readers know it. With PR, an independent publisher decides whether to cover you and how. You give up control, but you gain credibility, because a third party chose to put its name next to yours. This trade-off is the heart of the difference. It’s also why paid placements dressed up as editorial coverage must be clearly labeled, and why they don’t carry the same weight.
Measurement and ROI: influence vs conversion
Marketing is measured with direct-response metrics: leads, conversion rates, cost per acquisition, return on ad spend, and revenue. PR is measured by coverage quality, links, share of voice, branded search and, increasingly, mentions in AI answers. Good PR measurement avoids advertising value equivalency (AVE), which the industry’s Barcelona Principles 4.0 call an invalid measure. Our guide to how to measure digital PR sets out a practical framework.
The result is that the two show ROI differently. Marketing ROI is direct and quick to prove. PR ROI builds up over time, and much of it shows in search rankings, branded demand, and AI visibility rather than in one campaign report.
Where PR and Marketing Overlap: The PESO Model
The clearest way to see how PR and marketing fit together is the PESO model, which splits media into four types:
- Paid: advertising and sponsored content, mostly led by marketing
- Earned: press coverage, reviews and mentions, mostly led by PR
- Shared: social media and communities, where both work
- Owned: your website, blog and email, where both work
The overlap is growing. Content marketing and thought leadership blur the line between the two teams, because the same research report can feed a press pitch, a blog post and an email campaign.
Digital PR sits right on the boundary. Its method is PR (earning coverage on merit), but its results are marketing results: links, referral traffic and better rankings. In our work with a long-established healthcare brand, earned coverage and links were a core part of a program that grew average monthly organic visits from around 3,000 to around 12,000. That’s why we treat digital PR as an SEO strategy as much as a communications one. For how it differs from press-release PR, see digital PR vs traditional PR.
At GrowthEdge Marketing, we run both earned and paid work, including digital PR, media placement, and sponsored content. That means we see where the line falls every day: both have a role, but they’re different tools, and they should be labeled and measured differently.
How to make PR and marketing work together
- Share goals and a baseline. Agree on two or three business outcomes, such as qualified leads, branded search, and organic traffic, and report both teams against them.
- Keep one calendar. Plan launches so PR secures coverage while marketing has paid and owned support ready to capture the attention.
- Reuse earned coverage. Put press mentions and quotes into ads, emails, landing pages, and sales decks, where third-party credibility lifts conversion.
- Send PR traffic somewhere useful. Make sure the pages coverage links to are built to convert, not just to inform.
Why the Difference Matters More in AI Search
When people ask ChatGPT, Gemini, or Claude about a category, those tools draw overwhelmingly on earned media, not on paid content.
Muck Rack’s May 2026 “What Is AI Reading?” study analyzed more than 25 million links cited by ChatGPT, Claude, and Gemini. It found that 84% of AI citations came from earned media, while paid and advertorial content made up just 0.3%.
The practical lesson: advertising can buy you a place in search results, but it does very little to shape what AI assistants say about your brand. If you want to be mentioned when buyers ask an AI tool for recommendations, you need coverage and mentions you’ve earned, and a marketing budget alone won’t get you there. Community discussions matter here too. See our post on Reddit mentions and AI search.
Do You Need PR, Marketing or Both?
Most growing businesses need both, but the balance should follow the situation you’re in:
- You’re launching a product or announcing funding. Lead with PR, since coverage gives the news credibility and reach. Support it with marketing to capture the demand.
- Your sales pipeline needs leads this quarter. Lead with marketing, because paid and owned channels deliver fastest.
- You’re a startup with a small budget. Start with focused PR, such as expert commentary and one strong data story, to build credibility cheaply, plus owned content that can rank in search. Add paid marketing once you know what converts.
- You’re in a new category, or buyers don’t trust you yet. Prioritize PR. Third-party coverage and expert commentary build the credibility ads can’t.
- Your SEO has stalled. Prioritize digital PR. Earned links from real publications are among the strongest signals you can build.
- You’re facing a crisis. PR leads, always. Marketing should pause or follow PR’s lead on messaging.
- You’re scaling an offer that already works. Lead with marketing, with PR supporting brand trust in the background.
If you’ve decided PR should play a bigger role, our guide to how to choose a PR agency covers the questions to ask before you hire. To see how we combine earned coverage with search results, explore our digital PR services.
FAQs
Is PR part of marketing?
In many companies, PR sits within the marketing department, but it’s a distinct discipline. PR serves a wider set of audiences, works through earned rather than paid media, and focuses on reputation rather than sales. The two work best as partners with shared goals, not as one function under another name.
Which is better for a startup, PR or marketing?
Neither on its own. Early on, focused PR is often the cheaper way to earn credibility and links, while marketing turns that credibility into leads. Most startups do best by starting with a small amount of both and shifting budget toward whichever channel shows results first.
Which pays more, a career in PR or marketing?
According to the US Bureau of Labor Statistics, the median annual pay for public relations specialists was $74,750 in May 2025. For marketing managers, it was $166,790. These are different job levels, a specialist role compared with a management role, so compare like for like when weighing careers.
Is digital PR part of marketing or PR?
Both. Digital PR uses PR methods, earning coverage and links on the strength of a story, but it delivers marketing outcomes such as backlinks, referral traffic, rankings, and visibility in AI answers. That’s why it often sits between SEO, content and communications teams.
Marketing Creates Demand, PR Creates Trust
PR and marketing aren’t competing for the same job. Marketing gives you control, speed and measurable demand. PR gives you credibility, reach you can’t buy and, increasingly, visibility in AI answers. The strongest growth comes from using marketing to capture attention and PR to make that attention trust you.
If you want help building the earned side of that equation, get in touch with GrowthEdge Marketing.
