Hanover Communications UK

You’ve been tasked with finding the right PR agency. Your shortlist has two names on it, MSL vs Hanover Communications. Both are respected and MSL vs Hanover Communications serve serious clients. But they are built for very different briefs. That’s the decision you’re facing, and it’s not a small one. Choose the wrong agency, and you’ll spend months trying to make a relationship work that was never the right fit to begin with. Choose the right one, and you gain a communications partner who genuinely understands your sector, your audiences, and what it takes to move the needle. So let’s break down the MSL vs Hanover Communications comparison in plain language. No jargon or filler. Just what you actually need to know.   MSL: The Publicis-Backed Healthcare and Consumer Influence Powerhouse MSL, formerly Manning Selvage & Lee, is one of the flagship PR agencies within Publicis Groupe, one of the world’s largest communications holding companies. With over 2,000 professionals across more than 100 offices in 40 countries, MSL has built one of the most recognizable reputations in healthcare and consumer communications. According to MM+M’s Agency 100 report, MSL’s healthcare revenue in North America grew 11% from 2022 to 2023, reaching an estimated $19.3 million. That growth continued in 2024, climbing a further 9% to an estimated $21 million. Those aren’t vanity figures. They reflect a consistent demand from clients like Pfizer, Eli Lilly, Invisalign, and GSK who keep growing their accounts with the agency. Additionally, PRovoke Media named MSL one of its 2025 Global Agencies of the Year, a distinction MSL has earned repeatedly, alongside being named Best Midsized Agency to Work For for four consecutive years.   What Makes MSL Different MSL describes itself as an “influence engine for brands, companies and leaders.” That’s more than marketing language. The agency has built a proprietary approach called Fluency for influencer marketing, a CultureIQ tool for algorithmic trend tracking, and Message ShAIping, an AI-powered tool for narrative testing. Furthermore, MSL’s healthcare practice is anchored by a team dedicated to executive thought leadership, patient advocacy, and regulatory communications. The 2024 focus, according to U.S. CEO Diana Littman, was on using earned media as an upstream driver of business decisions, not just communications outputs. Key MSL facts at a glance: Parent company: Publicis Groupe Staff: 2,000+ globally Primary strengths: Healthcare PR, consumer communications, influencer marketing Notable clients: Pfizer, Eli Lilly, GSK, Procter & Gamble, Toyota, The Home Depot 2024 awards: PRovoke Global Agency of the Year 2025, Best Midsized Agency to Work For (4 years running) Hanover Communications: The UK’s Independent Financial and Policy PR Leader Hanover Communications takes a different path entirely. Founded in London in 1998 by Charles Lewington, formerly press secretary to Prime Minister John Major, Hanover built its reputation around one thing; Understanding how power works. That background shapes everything the agency does, from financial services PR to public affairs and regulatory navigation. Hanover is now part of AVENIR GLOBAL, a Montreal-based communications group. However, it operates with full independence and retains its specialist identity. Collectively, AVENIR GLOBAL ranks among the top 15 largest communication firms in the world. The agency has 163 full-time employees across Europe, serves clients including Goldman Sachs, Airbus, Microsoft, Lilly, Novartis, Bristol-Myers Squibb, Roche, and Takeda. They posted revenues of £19 million in 2018 with consistent 25% top-line growth in the years leading to its acquisition.   What Makes Hanover Different Hanover’s strength is at the intersection of financial services, public affairs, and regulatory communications. Its “Rewire” diagnostic tool helps leaders turn reputational vulnerabilities into strategic opportunities. It is a valuable asset for financial services firms navigating regulatory change, investor scrutiny, or government policy shifts. Conversely, Hanover also maintains a growing healthcare practice, specifically focused on NHS policy, pharma access, and patient advocacy within the UK health system. The appointment of Professor Sir Stephen Powis, former National Medical Director of NHS England, as a senior advisor signals how seriously Hanover takes this vertical. The agency describes itself as serving “enterprises, institutions, and individuals”, and that breadth reflects a firm that moves comfortably between corporate boardrooms, Westminster, and Brussels.   Key Hanover facts at a glance: Parent company: AVENIR GLOBAL (part of top 15 global comms groups) Staff: 163+ across Europe Primary strengths: Financial services PR, public affairs, regulatory communications Notable clients: Goldman Sachs, Airbus, Microsoft, Lilly, Novartis, Roche Founded: 1998, London MSL vs Hanover Communications: A Direct Comparison Here is where things get genuinely useful. MSL vs Hanover Communications are excellent. But they serve different needs, different geographies, and different decision-makers. Factor MSL Hanover Communications Parent company Publicis Groupe AVENIR GLOBAL Primary strength Healthcare PR, consumer influence Financial services, public affairs Geography Global (40 countries) Europe & Middle East (primarily UK) Healthcare focus Deep — pharma, biotech, patient advocacy Growing — NHS, pharma access Financial PR Limited Core specialty AI/Tech tools Yes — CultureIQ, Fluency, Message ShAIping Yes — Rewire diagnostic Best for Pharma, consumer health, FMCG brands Financial services, regulated industries, policy Holding company Yes (Publicis) Yes (AVENIR GLOBAL) The core difference is clear. MSL is a better fit if your priority is healthcare communications, consumer influence, or integrated global campaigns. Hanover, conversely, is the stronger choice if you need deep financial services expertise, UK regulatory navigation, or public affairs counsel at a senior level. Read Also:Guaranteed PR Agencies Compared: Honest Truth About Real Results    MSL vs Hanover Communications: Which Agency Is Right for You? This depends entirely on what you actually need, not what sounds impressive in a pitch meeting. Choose MSL if: You’re a pharmaceutical or biotech company needing US or global healthcare PR Your brand requires consumer marketing and influencer-led campaigns at scale You want AI-powered insight tools embedded in your communications strategy You need a large global network coordinating multi-market campaigns simultaneously Choose Hanover Communications if: You operate in UK financial services and need regulatory or policy navigation Your business is navigating a complex government affairs challenge in the UK or EU You’re a pharma or medtech company