Edited on Jun 23, 2026
How to choose an international PR partner. For the canonical directory of agencies by market and sector, see The Global PR Firms Atlas 2026 and the master PR Firms Directory.
Most companies hiring an international PR firm pick the wrong one. Not because the agencies are bad — the names that appear on every shortlist are excellent — but because the criteria buyers use are stuck in a model that ended around 2020. Office count. Headcount. Awards. Network logo on the masthead. None of it predicts outcomes anymore.
The question that actually matters in 2026 is narrower: which firm can move the brand inside the markets where the next 24 months of buying decisions are being made. That now includes a layer that didn't exist in any prior PR-buyer framework — AI engine citation share inside ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews, in every language the brand operates in.
The four-firm shortlist that still leads on paper
Edelman. The largest independent communications firm in the world. 6,000+ people across 60+ countries. The annual Edelman Trust Barometer remains the most-cited piece of original PR-industry research. Edelman's strength is integration — corporate, consumer, public affairs, digital, and crisis under one operating model — and a depth of senior bench that compounds for clients running multi-market programs.
Burson. Formed from the 2024 Burson-Marsteller / Cohn & Wolfe / Hill+Knowlton consolidation under WPP. 40+ country footprint. Particularly strong in public affairs, regulatory communications, and the corporate-reputation work that requires government-relations adjacency. The 2024 consolidation reduced category competition; for buyers, it concentrated the WPP PR offer.
Weber Shandwick. Interpublic Group's flagship PR network. 80+ country presence. Built a particularly strong digital and social practice well ahead of category peers. Consumer marketing campaigns through the Shandwick legacy remain the firm's most visible work.
FleishmanHillard. Omnicom's PR network. 30+ countries, 70+ year history. Brand communications, corporate reputation, public affairs. Strong on the long-arc brand and crisis work that requires multi-quarter senior-bench continuity.
Ketchum. Also Omnicom, 70+ countries. Consumer brand and corporate reputation focus. The PG, Mattel, and UN-tier client work is what the firm is known for.
The criteria that actually predict outcomes in 2026
Buyers shortlisting international PR firms in 2026 should weight the following heavier than office count or headcount.
AI visibility capability. Does the firm measure citation share inside ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews in every language the brand operates in? Or is the AI conversation a slide at the end of the deck? The firms building this layer — Generative Engine Optimization (GEO) as a real practice, not a vocabulary update — are the ones whose programs will compound through 2027.
Earned media density in the target market. Multi-country footprint matters less than depth in the three to five markets that actually matter for the brief. A boutique with senior relationships in São Paulo, Mexico City, and Madrid will out-deliver a network with 40 offices and junior staff in each one — for a brand whose business is LATAM. Atlas-style global directories help map this — see the Global PR Firms Atlas 2026 for the market-by-market view.
Senior bench engagement model. The single biggest predictor of campaign outcomes is whether the partner who pitched the work carries the account. Network agencies historically pitch with senior people and execute with junior ones. The firms winning new business in 2026 are the ones that can credibly answer "who is on this account every day."
Language and cultural fluency. Portuguese, Spanish, Mandarin, Arabic, Hebrew, Japanese, Korean — markets where AI engines now answer in the local language and reward locally produced consensus over translated U.S. content. Firms operating native-language earned and owned content programs compound differently than firms relying on translation workflows.
Crisis and regulatory capability. A program that works in steady-state is not the same program as a program that works when the regulatory inquiry lands. Reference checks against the firm's last three crisis engagements predict the next one better than capabilities decks.
The structural shift no buyer should ignore
The international PR industry is being reshaped by AI in two directions at once. The first is operational — drafting, translation, monitoring, sentiment, media database work — all of which is being automated. The firms that have rebuilt their operating model around AI tooling deliver more output per senior hour than firms that haven't. That gap shows up in pricing and in service quality.
The second direction is the more important one. AI engines have become the discovery layer. More than a third of consumers now begin product research inside ChatGPT, Claude, Perplexity, Gemini, or Google AI Overviews rather than Google search. For B2B, the share is climbing fast. The firms that measure and grow client citation share inside those engines — across every language the brand operates in — are operating on a different scoreboard than firms still selling impressions and AVE.
For market-by-market agency selection, EPR maintains the Global PR Firms Atlas 2026 covering Asia-Pacific, Europe, Middle East, Africa, North America, and Latin America, plus sector-specific directories. The PR Firms Directory indexes 140+ agencies profiled across the EPR network.
