Cornerstone has roots in St. Louis dating back to 1971. It's our mission to give back to the the place we call home, to strengthen our community and the people who work in it, and to help the businesses we partner with in every capacity possible.
Wilson & Associates founded and opens its first office in downtown St. Louis. Wilson & Associates was a commercial insurance firm founded by David D. Wilson.
Corporate Benefit Consultants founded in Chesterfield, MO, by Richard Steinbaum, co-founder of Cornerstone Insurance Group.
Cody Wilson, co-founder of Cornerstone Insurance Group, joins Wilson & Associates.
Cody Wilson becomes President of Wilson & Associates, serving clients alongside his father David and overseeing 15 employees.
Corporate Benefit Consultants grows to employ 17 employees.
Wilson & Associates merges with Corporate Benefit Consultants to form Cornerstone Insurance Group. The merger allows Cornerstone to offer clients more resources, including TPA services.
Also this year, Cornerstone grows to 35 employees and moves to Creve Coeur, Mo.
Cornerstone grows to employ more than 70 people.
Cornerstone wins the 2012 Healthiest Employer Awards, hosted by the St. Louis Business Journal. CIG has placed as a finalist in the competition every year since its inception in 2011, placing first in the small employer category in 2012 and 2014.
Cornerstone partners with St. Louis nonprofit Lift for Life Gym. For more than three years, Cornerstone employees prepared dinner for the youth involved in the after-school program, serving more than 1,700 dinners over the years at Lift for Life Gym!
Also this year, the Cornerstone team grows to more than 100 employees.
Cornerstone Employer Solutions founded. CES is a Professional Employer Organization, providing Cornerstone clients with more resources and options for their benefits, HR, payroll, and workers’ compensation needs.
Baugher & Associates, an employee benefits firm located in Glen Carbon, Il., joins the Cornerstone team.
Also in 2014, Cornerstone is named a Top Company in St. Louis by Small Business Monthly.
Cornerstone dedicates board room to Wilson & Associates founder David D. Wilson.
Cornerstone named a best place to work in St. Louis by the St. Louis Business Journal.
Also in 2017, employees begin leading a community outreach committee, providing 8 hours of paid volunteer time annually for each employee. The Cornerstone Initiative benefits a local nonprofit every quarter.
Cornerstone named a Best Place to Work in St. Louis by the St. Louis Business Journal for the second year in a row!