What Is a PR Agency, What Does It Do, and How Do You Choose the Right One?

A PR agency is a firm hired to manage how an organisation communicates with the public, media, investors, and other key audiences. It earns coverage, builds reputation, and responds to crises — using earned media rather than paid advertising to do it.

What Does a PR Agency Actually Do?

Most people have a rough sense of what PR means. Fewer understand what an agency actually delivers week to week. The short version: a PR agency works to shape how your organisation is perceived, primarily by building relationships with journalists, editors, analysts, and influencers — and getting your story into the right channels without paying for ad space.

That said, the work varies considerably depending on the type of client and the agency's focus.

Media Relations

This is the core of most PR agency work. Teams pitch stories to journalists, respond to media enquiries, arrange interviews, and work to secure coverage in publications relevant to the client's audience.

In practice, media relations is less glamorous than it sounds — it involves a lot of relationship maintenance, follow-up, and timing. Teams commonly report that consistent, incremental outreach over months tends to outperform any single press release.

Crisis Communications

When something goes wrong — a product recall, a leadership scandal, an operational failure — a PR agency helps the organisation respond quickly, clearly, and in a way that limits long-term reputational damage.

This is one area where having an experienced agency relationship already in place genuinely matters. Starting from scratch with a new agency during an active crisis is rarely effective.

Reputation Management

Beyond crisis response, PR agencies work on longer-term reputation positioning. This includes monitoring what is being said about a brand, managing negative search visibility, and building a consistent public narrative over time.

What's often overlooked is that reputation management is mostly preventive — the agencies that do it well are the ones working quietly before problems surface.

Thought Leadership and Executive Visibility

Many agencies help senior leaders become recognised voices in their sector — through op-eds, speaking opportunities, industry awards, and media profiles. This is increasingly common in B2B sectors where the credibility of the leadership team directly influences buyer decisions.

Content and Digital PR

PR agencies increasingly produce content — articles, white papers, data studies — designed to earn links, coverage, and search visibility. This sits at the boundary between PR and SEO, and not every agency does it equally well. It's worth asking specifically what a given agency's digital PR output looks like before assuming it's included.

How Modern PR Agencies Are Incorporating AI

This is worth paying attention to. Several agencies now use AI tools for audience analysis, media monitoring, sentiment tracking, and identifying emerging story angles before they go mainstream.

Some larger independents have built what they call generative engine optimisation (GEO) practices — focused on ensuring clients appear in AI-generated search results, not just traditional search. This space is evolving quickly, and how agencies handle it varies significantly. It's a reasonable question to ask any agency you're evaluating.

How Is a PR Agency Different from a Marketing or Advertising Agency?

The confusion between PR, marketing, and advertising is real and understandable — especially since many large firms now offer all three. The functional distinction comes down to message control and payment model.

Dimension	PR Agency	Marketing Agency	Advertising Agency
Primary Goal	Manage reputation and earn third-party coverage	Drive awareness, leads, and conversions	Deliver paid reach to a defined audience
Core Method	Earned media — journalists, analysts, influencers	Mix of content, SEO, email, paid campaigns	Paid placements — TV, digital, print, outdoor
Who Controls the Message	Third parties (journalists, editors) shape coverage	Brand controls content directly	Brand controls ad copy entirely
How Results Are Measured	Coverage quality, share of voice, sentiment	Traffic, leads, conversions, ROI	Impressions, click-through rate, cost per acquisition
Typical Budget Structure	Monthly retainer or project fee	Retainer or performance-based	Media spend + agency commission or fee

At first glance this seems like a clean split. In practice, the lines blur — particularly with digital PR, where content created for earned coverage also improves SEO. Many businesses use PR agencies alongside marketing agencies rather than choosing between them.

Types of PR Agencies — and Which One Fits Your Situation

Not all PR agencies operate the same way. Size, ownership structure, and specialisation all affect what you actually get.

Large Global Network Firms

Firms like Edelman, Weber Shandwick, FleishmanHillard, and Ketchum operate across dozens of countries, employ thousands of people, and generate hundreds of millions in annual fee income. They suit multinational corporations, publicly traded companies, and organisations dealing with complex, cross-border communications challenges.

The trade-off: at large network firms, senior strategists typically pitch the account, but day-to-day work may be handled by more junior teams. This is a widely reported frustration among clients who move from large networks to smaller firms.

Mid-Size Independent Agencies

This is a broad and active category — firms typically generating between $20 million and $150 million in annual fee income. They often have deep sector expertise without the overhead of a global network. Organisations in this space typically find the partner-level attention more consistent than at larger firms.

Boutique and Specialist Agencies

Small agencies — sometimes fewer than 20 people — that focus on a specific sector (healthcare, fintech, luxury goods) or a specific service (crisis only, executive communications, digital PR). For businesses in niche sectors, a boutique with genuine domain knowledge often delivers more relevant results than a generalist agency at any size.

In-House PR Team vs. External Agency

Factor	In-House Team	External PR Agency
Brand knowledge	Deep and immediate	Built over time
Sector breadth	Narrow — focused on one brand	Broad — across multiple clients
Media relationships	Strong in one niche	Typically wider and more varied
Cost structure	Fixed salary cost	Retainer or project fee
Scalability	Limited by headcount	Can scale up or down
Independence of perspective	Lower — internal pressure applies	Higher — external viewpoint

Many organisations run both — an in-house communications lead who manages the agency relationship, sets strategy, and handles internal communications, while the agency handles media outreach, content production, and specialist work.

When Does a Business Actually Need a PR Agency?

Early Signs Your Business Is Ready

• You have a defined story to tell but no relationships with journalists or media
• A product launch, funding round, IPO, or major partnership is coming up
• You're entering a new market where you have no brand recognition
• Leadership is being asked for media comment and there's no process for handling it

High-Value Situations for PR Agency Involvement

Crisis communications, IPO preparation, product recalls, major leadership changes, and market expansion are consistently cited by communications teams as situations where external agency support earns its cost most clearly.

The reason is straightforward: these situations require speed, experience, and media relationships that take years to build.

When a PR Agency May Not Be the Right Move Yet

This is worth being honest about. If your business has no clear story, no news to generate, and no defined audience — a PR agency will struggle to deliver meaningful results regardless of their capability.

Agencies report this as one of the most common sources of client disappointment: engaging PR support before the fundamentals (product, positioning, audience clarity) are in place.

How Much Does a PR Agency Cost?

Pricing varies widely depending on agency size, geography, scope, and specialisation. Below is a general framework — specific figures are not publicly standardised across the industry.

According to data from Statista, most billion-dollar companies in the US spend between $250,000 and $25 million on PR annually, which reflects how broadly costs scale with business size and scope.

Engagement Model	Typical Monthly Range	Best Suited For	Key Considerations
Monthly Retainer	$3,000 – $30,000+	Ongoing media relations, reputation work	Scope needs to be clearly defined upfront
Project-Based	$5,000 – $50,000+ per project	Product launches, event PR, one-off campaigns	Deliverables and timeline must be agreed in writing
Hourly Rate	$150 – $500+ per hour	Advisory, crisis response, short-term counsel	Can escalate quickly without clear hour caps
Performance-Based	Varies	Coverage guarantees or outcome-linked work	Rare; most reputable agencies avoid pure pay-for-coverage models

What Affects PR Agency Pricing

Agency size, seniority of team assigned, geographic market, and scope of services are the primary pricing variables. A boutique agency in a mid-size city will typically cost meaningfully less than a network firm's team in New York or London — for comparable scope.

What Is Included — and What Is Typically Billed Separately

Most retainers cover strategy, media outreach, coverage reporting, and a defined number of hours. Event support, content production, photography, media monitoring subscriptions, and travel are commonly billed as separate costs. Clarifying what sits inside and outside the retainer before signing avoids the most common contract disputes.

Contract terms typically range from three months (project) to twelve months (retainer), with thirty to ninety day notice periods for termination. Shorter initial terms are worth negotiating if you're working with an agency for the first time.

PR Agency Specialisations Explained

The PR industry broadly organises itself around client sectors and service types. Newsweek and Statista's 2024 ranking of America's best PR agencies identified 11 client sectors and 13 service specialisations as the primary organising framework.

Sector Specialisations

Sector	What It Covers	Example Client Types
AI, Technology & Telecommunications	Product PR, analyst relations, tech media	SaaS companies, hardware brands, telecoms
Healthcare & Life Sciences	Regulatory-sensitive communications, patient advocacy	Pharma, medical devices, health systems
Financial Services	Investor relations, regulatory comms, fintech	Banks, asset managers, fintech startups
Consumer Goods	Brand PR, retail, lifestyle media	FMCG brands, direct-to-consumer products
Professional Services	B2B reputation, thought leadership	Law firms, consulting firms, accountancies
Public Affairs	Government relations, policy communications	Trade associations, advocacy groups
Automotive & Transportation	Product launches, recall comms, mobility tech	OEMs, EV companies, fleet operators
Energy & Environment	ESG communications, sustainability reporting	Utilities, renewables, oil and gas
Nonprofit & Social Impact	Donor communications, cause campaigns	Charities, foundations, NGOs
Real Estate	Development PR, investment comms	Developers, REITs, property platforms
Sports & Entertainment	Talent PR, events, sponsorship comms	Teams, athletes, event organisers

Service Specialisations

Beyond sector, agencies often specialise by service type — crisis communications, influencer relations, executive visibility, media strategy, event planning, or digital and content PR. A business evaluating agencies should assess both: does this agency know our sector, and are they genuinely strong in the service we actually need?

How PR Agencies Measure Results

This is one of the least-discussed but most practically important questions to ask before signing with any agency.

Media Coverage Metrics

Volume of coverage (number of articles), tier of publication, and whether key messages were included are the most common tracking points. Most agencies provide monthly coverage reports summarising placements.

Share of Voice

Share of voice measures how much of the total media conversation in a given sector involves your brand compared to competitors. It's a useful directional metric, though it tells you more about volume than quality.

Reputation and Sentiment Tracking

Sentiment analysis — tracking whether coverage is positive, negative, or neutral — is increasingly standard. More sophisticated agencies track net sentiment trends over time rather than individual article tone.

What to Be Cautious About — Vanity Metrics

Interestingly, some of the most-cited PR metrics are also the least meaningful. Advertising value equivalency (AVE) — which assigns a monetary value to coverage based on equivalent ad spend — is widely criticised within the industry as a poor proxy for actual communications impact.

As documented by the Barcelona Principles on Wikipedia, this globally recognised framework agreed upon by PR practitioners from 33 countries explicitly states that "AVEs are not the value of communication" and rejects the metric as a valid measure of PR outcomes. If an agency leads with AVE in their reporting, it's worth asking what else they track.

How to Choose the Right PR Agency

Step 1 — Define Your Goals and Budget Before You Start

Before approaching any agency, be specific about what you're trying to achieve — media coverage in which publications, for which audience, around which narrative. Vague briefs produce vague proposals.

Organisations that enter the agency search with a written brief consistently report more useful and comparable responses.

Step 2 — Match the Agency's Specialisation to Your Sector

A technology PR agency with strong relationships among tech journalists is more valuable to a SaaS company than a generalist public relations firm with broader but shallower reach. Sector fit matters more than agency size for most businesses.

Step 3 — Evaluate the Team, Not Just the Agency Name

Ask specifically who will work on your account day-to-day. Request CVs or bios of the proposed team members. The agency's reputation is built on its senior talent — but that talent may not be your team.

Step 4 — Understand Their Reporting and Measurement Approach

Ask what metrics they track, how often they report, and what a typical monthly report looks like. An agency that struggles to answer this clearly is worth approaching with caution.

Step 5 — How to Write a Basic PR Brief or RFP

A functional PR brief should include: your organisation overview, the communications challenge you're trying to solve, your target audiences and publications, your budget range, your timeline, and how you'll evaluate success. You don't need a lengthy document — a clear two-page brief outperforms a vague ten-page RFP in most agency searches.

Red Flags to Watch For in the Selection Process

• Guaranteed media coverage promises — reputable agencies do not guarantee specific placements
• Senior-only pitch teams with no indication of who handles day-to-day work
• Vague measurement frameworks or heavy reliance on AVE
• No relevant sector experience in the team being proposed
• Pressure to sign long contracts without a trial period option

Top PR Agencies — How the Industry Is Ranked and What the Numbers Mean

PR agency rankings are published annually by several industry bodies. The two most widely referenced are O'Dwyer's (US-focused) and PRovoke Media (global). Both rank agencies by fee income — which is the total amount billed for PR work during a calendar year, minus third-party costs like media spend or production.

Agency	HQ	2024–25 Fee Income (approx.)	Known Specialisation
Edelman	USA	~$950M–$986M	Broad — corporate, consumer, health, tech
Weber Shandwick	USA	~$849M	Corporate reputation, healthcare, public affairs
Burson	USA	~$956M	Corporate communications, crisis
FleishmanHillard	USA	~$743M	Corporate, healthcare, public affairs
Real Chemistry	USA	~$560M–$665M	Healthcare and life sciences
Ketchum	USA	~$510M	Consumer, food and beverage, healthcare
APCO Worldwide	USA	~$237M–$239M	Public affairs, corporate advisory
Finn Partners	USA	~$199M	Technology, health, travel

Fee income figures sourced from O'Dwyer's 2026 rankings and PRovoke Media's 2025 Global Rankings. Some figures represent estimates where agencies did not publicly disclose financials.

How PR Agency Rankings Are Compiled

O'Dwyer's collects self-reported net fee data, attested to by agency leadership. PRovoke Media follows a similar model but uses its own estimates for publicly traded firms that decline to disclose. Neither ranking is independently audited in the manner of a financial statement.

What Fee Income Does and Does Not Tell You as a Buyer

Fee income reflects size, not quality. A firm billing $50 million annually may or may not deliver better results for your specific needs than one billing $5 million. Rankings are a useful starting point for understanding the industry landscape — not a shortcut to the right agency for your organisation.

Geographic Considerations When Evaluating Agency Rankings

O'Dwyer's rankings break down by city and region, which reflects a practical reality: media relationships are often geographically concentrated. An agency with strong New York or Washington D.C. relationships may have limited reach in regional markets — and vice versa.

If your target media are primarily local or regional, geography should factor into your agency selection more heavily than overall ranking position.

Conclusion

A PR agency earns media coverage, manages reputation, and guides communications through high-stakes moments. Choosing the right one depends on sector fit, team quality, and clear measurement — not rankings alone. Define what you need before you search, and ask the harder questions early.

Frequently Asked Questions

Is a PR agency worth it for a small business?

It depends on whether you have a clear story and defined media targets. PR works best when there's genuine news or a distinct perspective to communicate. Without that foundation, results are difficult to generate regardless of agency quality.

What is the difference between PR and public affairs?

PR focuses on media, reputation, and public perception broadly. Public affairs specifically addresses relationships with government, regulators, and policymakers — it's a specialised subset, though many agencies offer both.

Can a PR agency guarantee media coverage?

No reputable agency guarantees specific placements. Journalists make editorial decisions independently. Agencies can pitch effectively and build strong relationships — but outcomes ultimately depend on editorial judgement and news value.

What is net fee income in PR agency rankings?

Net fee income is the revenue a PR agency earns from its work — total billings minus any third-party costs passed through to clients, such as media spend or production. It's the standard measure used in industry rankings.

How long before a PR agency delivers results?

Meaningful results typically take three to six months to materialise. Media relationship-building, narrative refinement, and consistent outreach take time. Campaigns tied to specific events can show results faster, but sustained reputation-building is a longer process.