Liberty Mutual Investments | 2,599 followers on LinkedIn. Liberty Mutual Investments (LMI) is the investment firm for Liberty Mutual Group (Liberty), a global insurance and capital solutions partner. With deep expertise in liquid, credit, and alternative strategies, LMI invests more than $117B of capital globally, taking a long-term approach across its integrated platform. LMI has a clear purpose: build enduring businesses side-by-side with our partners, drive economic growth, and generate superior risk-adjusted returns that power Liberty’s strategy and secure its promises.