No, there are actuaries who work in life and non-life parts

楼主估计是在大不列颠大阴帝国上学的

What kinds of clients do the consulting firms work for?

麻烦楼主动下手，用下google．下面是从TW的网站上贴过来的

Benefits
The complexity, costs and risks associated with employee benefits pose an increasing threat to business performance. An enterprise-wide strategy for managing benefits gives you the framework to develop programs that work in concert to help attract and retain top talent in a cost-effective manner — so you can offer benefits that give you a competitive edge while meeting the needs of your employees.

Learn more about Towers Watson's benefit services
Risk and Financial Services
As companies struggle to improve business performance, they want to combine risk management with their overall financial management framework. Towers Watson understands the crucial link between risk, capital and value, whether you are an insurer concerned about capital management, a CFO trying to manage value creation or an investment committee seeking to balance risk and return.

Learn more about Towers Watson's risk and financial services
Talent and Rewards
At Towers Watson, we help you align your talent and rewards strategy with your business strategy to achieve long-term success. We rely on data, analytics and experience to pinpoint the talent and workforce needs that are vital to your overall performance. We develop strategies, and design and implement programs that address these needs, drive higher performance and ensure the right return on your investment in people. Backed by industry-leading technology, global workforce data, research and insights, we help you quickly transform ideas into action.

Learn More About Towers Watson's talent and rewards services
Mergers and Acquisitions
Towers Watson helps organizations across all industries evaluate and address the people-related costs, risks and challenges of corporate transactions, from due diligence through full integration. We draw on our global expertise in communication and change, talent management, reward strategy and design, leadership, culture and project management. Our insurance consulting business, which specializes in transactions for the industry, draws on our deep industry knowledge and quantitative expertise, with a focus on raising capital, due diligence and restructuring. We collaborate seamlessly with other M&A advisors — including bankers, lawyers, accountants and tax experts — analyzing every aspect of a transaction to provide essential data, insights and perspective for decision making and execution.

Learn more about Towers Watson's mergers and acquisitions services

well, part of the benefit work should be done by actuaries, pension in particular. MA is for sure not actuaries' job. Remember, TW is a human resource consulting firm.
Most of the services a it offers for its clients are not for actuaries. Keep this in mind. Actuary is not like what you think. It would be more than naive to believe that actuaries are the most important roles in the consulting industry. There are many many fields as important as actuarial science.But I am glad to hear your voice here. Thx~