ZS Associates

With ZS, you have a partner committed to getting it right the first time.

One New Ludgate, 60 Ludgate Hill, London, EC4M 7AW

ZS is a global professional services firm that leverages deep industry expertise, leading-edge analytics, technology and strategy to create solutions for clients that work in the real world

Glass Door
Team Size 500+
Established 1983

ZS is a global professional services firm that leverages deep industry expertise, leading-edge analytics, technology and strategy to create solutions for clients that work in the real world

About Us

ZS is an up-and-coming professional services firm that works side by side with companies to help develop and deliver products that drive customer value and company results. We leverage our deep industry expertise, leading-edge analytics, technology and strategy to create solutions that work in the real world.

Our most valuable asset is our people—a fact that’s reflected in our values-driven organisation in which new perspectives are integral and new ideas are celebrated. We apply our knowledge, capabilities and innovation-oriented approach in industries ranging from healthcare and life sciences, to high-tech, financial services, travel and transportation, and beyond.

Mission: We like solving problems—taking things apart, seeing how they work and putting them back together better. We lead the way in combining science and hands-on experience to solve the toughest business challenges.

With ZS, you have a partner committed to getting it right the first time. We work side by side with you at every stage to get to the heart of your problem. It’s about results, not just ideas. That’s why we partner with our clients from strategy to implementation and beyond. Our software products enable your success with leading-edge analytics and domain expertise. From healthcare to high-tech, our deep domain expertise ensures that solutions work for you.

Get industry expertise, advanced analytics, technology and strategy solutions that work in the real world. Solve your most complex challenges so you and your customers thrive.

We have an industry-leading strategy, technology, marketing and sales expertise. We Develop, launch and cultivate focused, industry-specific products and services that are real-world-ready.

Finding your fit

Today’s business challenges require the right combination of capabilities and expertise, and we structure our teams in a way that enables our clients’ success while nurturing our people’s long-term development.

Business consulting

Design and deliver solutions to solve a broad spectrum of challenges, leveraging advanced data analytics and problem-solving techniques to transform our clients’ organisations and drive customer value and company results.

Business operations

Run, improve and transform our clients’ full spectrum of business processes and operations, thoughtfully designing solutions focused on operationalising analytics and implementing leading-edge automation technologies.

Business technology and software development

Conceptualise, design, build, implement and support technology products and solutions that enable end users to make critical decisions and help companies achieve better business results.

Client integrated group

Partner side by side with clients in real time while liaising with the ZS team to take business analytics, operations and reporting to the next level.

Founders & Leaders

Graham Webster Photo

Graham Webster


Graham is ZS’s Chief Financial Officer and is based in the firm’s London office. He has more than 20 years of experience helping global professional services firms manage financial risk while pursuing long-term growth objectives. Before joining ZS, Graham served as the chief financial officer for a global IT professional services company, ThoughtWorks, where he led corporate and regional finance teams, as well as accounting and cash and risk management. Prior to ThoughtWorks, he worked on the finance teams of Unilever and Accenture.

Torsten Bernewitz Photo

Torsten Bernewitz

Principal (Strategy & Advisory)

Torsten has nearly 30 years of experience as a management consultant and business leader. He has set up and leads the global change management expertise center at ZS. Working predominantly with Fortune 500 companies and their affiliates in the United States, Europe, South America and the far East, Torsten helps them transform their organizations to achieve faster growth and superior execution, and to codify and disseminate best practices. Prior to joining ZS, Torsten’s experience includes sales and marketing roles with IBM, work for the Commission of the European Union in Brussels, and research for the Technology Center in Hannover, Germany.

Iain Fratter Photo

Iain Fratter


Iain brings over 20 years of experience in the healthcare sector, with an emphasis on international operations and technology. He is currently the leader of ZS’s EU operations and technology practice. Iain has expertise both in sales and marketing, and in delivering strong analytical solutions. He focuses on supporting clients with global transformation programs involving commercial analytics, operations and IT, including global and regional advanced analytics programs, global forecasting solutions, global sales planning solutions, global incentive compensation administration, and global data warehouse and business intelligence solutions.

ZS Associates - Who We Are
A brief introduction


  • Treat people right - We believe in treating others with respect and dignity
  • Get it right - We prioritize finding the right answer and delivering quality work—no matter how complex the challenge is
  • Do the right thing - We hold ourselves to high ethical standards and approach our work, our clients and each other with integrity.


  • Best Companies to Work For, Vault Consulting 50, 2019-2020
  • Outstanding Workplace for Women, B Peace Women Forward, 2019
  • Best Place to Work for LGBTQ Equality, Human Rights Campaign Foundation, 2018-2020
  • “Consulting 50,” “Best Consulting Firms for Health Care Consulting,” “Best Consulting Firms for Retail Consulting” and “Most Prestigious Consulting Firms”, Vault.com, 2017
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