Unum | 92,791 followers on LinkedIn. Since our founding in 1848, Unum has been a leader in the employee benefits business through innovation, integrity and an unwavering commitment to our customers. This simple philosophy has guided us through America’s fledgling insurance landscape and helped us become an international leader in financial protection benefits, offering disability, life, accident, critical illness, dental, vision and stop-loss insurance; leave and absence management support and behavioral health services.