Client Partner

Stein is a B2B marketing agency and part of the fast-growing MSQ Group. We drive revenue growth from brand to demand with blue‑chip clients on a global scale.

We’re proud to be Global B2B Agency of the Year, and the driving force behind B2B marketing through world‑leading thought leadership, partnerships, and tools.

With unprecedented momentum and growth, we’re looking to build out our EMEA team with best‑in‑class talent to join us on the journey. We’re now looking for an experienced Client Partner to join our London team.

As a Client Partner, you will act as a senior business leader, owning senior client relationships and driving strategic growth for global brands. You will oversee a portfolio of clients and will be responsible for developing and leading integrated marketing strategies, managing high‑value accounts, and mentoring cross‑functional teams to deliver best‑in‑class solutions.

• Build and maintain trusted relationships with CMOs and senior client stakeholders, acting as a strategic advisor.
• Lead the integration of brand and demand, creating seamless customer experiences across channel, media, creative, content, and messaging to drive growth.
• Lead and grow a portfolio of clients, ensuring high levels of client satisfaction and long‑term partnerships.
• Develop and execute cutting‑edge, full‑funnel marketing strategies tailored to client objectives.
• Lead pitches for new business and expand existing engagements through strategic initiatives.
• Inspire, mentor, and lead high‑performing, integrated teams across account management, strategy, and creative disciplines.
• Ensure all client projects are delivered on time, within scope, and meet financial objectives.
• Champion a culture of collaboration, innovation, and professional development.

• Experience: 15+ years in an agency environment, with a proven track record of leading and growing high‑value accounts.
• Marketing Expertise: Strong B2B background with a deep understanding of full‑funnel marketing, digital transformation, and creative strategy.
• Leadership
  
  Skills:
  
  Exceptional ability to engage with C‑suite stakeholders, negotiate high‑level contracts, and drive client success.
• Business Acumen: Proven success in revenue forecasting, financial management, and strategic account growth.
• Passion for Excellence: A relentless drive to deliver top‑tier creative solutions and business results.

Be part of a team that invests in your growth through:

• A great range of company benefits
• Structured, award‑winning training programs; Investors in People, since 2008 & Princess Royal Training Awards)
• Access to cutting‑edge marketing tools and technologies

This is a role for a highly strategic growth driver, a relentless learner committed to continually developing the attitude, skills and competencies required of a truly elite B2B marketer, business‑savvy leader and passionate people manager.

Join us and you’ll be working with some of the industry’s most advanced thinkers, nicest people and the world’s biggest brands.