Stifel, Nicolaus & Company, Inc. Share: Financial Services Stifel, Nicolaus & Company, Inc. Visit Website 1401 Lawrence Street, Suite 900 Denver, Colorado 80202 (303) 291-5292 About Map About Stifel is a diversified global wealth management and investment banking company. In Colorado, Stifel works with local governments and developers to finance infrastructure projects. What's Nearby? Distance: 5 10 15 20 25 50 mi.