Here are the top 10 largest public relations firms in the USA, along with additional information about their headquarters location, year founded, revenue per employee, estimated profit margin, website URL, and CEO name.

This update uses PRovoke Media’s 2025 Global 250 (2024 fee income) and filters to US-headquartered firms to produce a US-focused top 10.

Top Public Relations Firms: The 10 Biggest US Agencies by Fee Income

Note: PRovoke’s global top 10 includes non-US headquarters. Filtering to US HQ pulls in US-based firms that sit just outside the global top tier, including FTI Consulting and Inizio Evoke.

Fee income isn’t perfect, but it’s one of the cleanest metrics we have for scale, especially for full-service firms that span media relations, crisis communications, and reputation management (often alongside social and digital marketing capabilities).

One merger reshaped the top tier

This ranking also reflects a structural shift: BCW no longer appears as a standalone leader because WPP merged BCW + Hill & Knowlton into Burson in 2024, which immediately reshuffled the top of the market.

What scale buys the top five

Combined, the top five generate ~$4.2B in PR fee income. That advantage shows up in familiar ways:

• brand reputation and enterprise trust
• mature client networks
• recruiting and retaining specialized talent across disciplines like crisis comms, public affairs, healthcare, corporate reputation, and integrated social/digital

Why size doesn’t automatically win anymore

Size helps, but it does not guarantee outcomes. Boutiques often win when the work requires speed, senior attention, or deep category specialization.

The agency label matters more than the logo

Some buyers want a full-service communications agency that can cover everything from media relations to crisis communications. Others need a PR specialist that plugs into a broader digital marketing or marketing agency stack. The right choice depends on the job, the team you’ll actually get, and the metrics you’ll use to define success.

What the shifts signal about where growth is coming from

The leadership roster is evolving. Burson’s formation, The Weber Shandwick Collective’s enterprise branding, and the rise of healthcare-heavy players like Real Chemistry and Inizio Evoke point to the same growth drivers: regulated industries, advisory-led engagements, and integrated communications that blend earned, social, and influence.

What changed since our last Green Flag Digital Top PR Firms list

Method: We now rank by PRovoke’s net PR fee, filtered to US-based companies. 

PR Agencies brand and structure changes

• Weber Shandwick → The Weber Shandwick Collective (TWSC): The current PRovoke dataset lists The Weber Shandwick Collective (not the older single-brand label).
• BCW is no longer on the top-10-by-fee list: Our old list included BCW; the current fee-income top tier now reflects Burson as the #2 US-HQ firm in PRovoke’s ranking.

Firms that entered the top 10 (vs. our prior list)

• Real Chemistry (healthcare-first growth and comms) is now top 5 by fee income.
• FGS Global (high-end corporate, financial, public affairs) is now top 10 by fee income.
• FTI Consulting appears in the top 10 under this US-HQ filter.
• Inizio Evoke (healthcare comms) appears in the top 10 under this US-HQ filter.

Firms that dropped from our prior top 10 (but still matter)

• MSL Group, H+K Strategies, Golin, Ruder Finn were on our prior list, but do not make this US-HQ top-10-by-fee cut under PRovoke’s dataset.

If you’re a buyer, the practical takeaway is simple: the “largest firms” conversation is increasingly about advisory + sector specialization (healthcare, finance, public affairs), not just legacy consumer PR scale.

What each top firm is typically hired to do

Here is how these firms are typically positioned in the market, based on their scale and category footprint.

If you need global scale and broad execution

• Edelman, TWSC, FleishmanHillard, Ketchum, Ogilvy
  These are common picks for multi-market launches, always-on earned media, executive positioning, and integrated strategic communications that blend PR, social media, influencer marketing, and paid amplification.

If you need corporate, financial, or policy-grade advisory

• FGS Global, FTI Consulting
  I see these firms short-listed when the work is board-visible: M&A, litigation comms, investor narratives, high-profile issues management, and public affairs that intersects with Washington stakeholders.

If you live in regulated industries (especially healthcare)

• Real Chemistry, Inizio Evoke
  These are frequently associated with healthcare and life sciences communications—where outcomes are constrained by compliance, clinical nuance, and reputational risk.

Where Green Flag Digital fits in a “top PR firms” conversation

I’m not going to pretend we’re trying to be Edelman. We’re not.

Green Flag Digital is built for teams who want PR that shows up in search, both classic SEO and emerging AEO/GEO surfaces, because that’s where discovery increasingly happens.

If you’re hiring a global network, you’re usually buying scale: multiple geographies, deep benches, and the ability to stand up a cross-functional team fast, especially for high-stakes strategic communications.

Green Flag Digital fits in a different buying moment: when you want PR or digital PR that keeps working after the news cycle ends.

Objections we hear 

“The biggest public relations firms are automatically the safest choice.”

Scale lowers some risk, like capacity and redundancy. It can also add friction, including slower cycles and more handoffs. For lean teams, a specialist with senior delivery often performs better when outcomes are tightly defined.

“PR can’t be truly measured.”

It can be measured when the job is defined upfront. Reputation work needs message pull-through and sentiment trends. Demand support needs branded search lift, referral traffic, and assisted conversions. Search visibility needs links and credible brand mentions.

We’ve also published research that looks specifically at what content gets cited in AI systems. Useful when your PR program is meant to influence those surfaces.

“Digital PR is just link building.”

Outreach-only programs feel like link building. Good digital PR produces newsworthy assets: original data, sharp creative, credible narratives. It then earns coverage that includes links, brand mentions, and lasting discoverability.

Ranking Methodology (what this ranking is and is not)

What this list is:

• The 10 largest PR/communications firms headquartered in the US: Ranked by fee income (USD) as reported/estimated in PRovoke’s 2025 Global 250 dataset.
• Employee counts: PRovoke figures used where available. Other numbers are estimates based on the latest public disclosures. Ogilvy reflects the PR & Influence division only.
• Client counts: Not publicly disclosed by most firms. Any figures shown are conservative estimates.
• Profit margins: Private firms do not publish margins. Industry norms for large PR networks typically range from 10–18%.
• Company leadership: Direct from the company website.

Why fee income:
It’s the cleanest apples-to-apples proxy for firm scale in PR because it reflects the service revenue that supports staff, specialty practices (public affairs, crisis management, social media, influencer marketing), and global infrastructure.

Update log:

3/2/26: Updated top 10 list and supporting copy.