Leslie Biggins Mollsen is the owner and CEO of American City Bureau, Inc., the nation’s original fundraising consulting firm to not-for-profit organizations, specializing in major gift development. The firm is headquartered in West Dundee, Illinois. 
Ms. Mollsen currently serves on the Board of the National Catholic Community Foundation (NCCF) and the Edmundite Missions, Selma, Alabama, Board of Directors.  For the Missions, she also chairs its advancement committee.  In 2016, she wrote a chapter in the book:  Ask for the World, Catholic Sisters and the Spirituality of Fundraising. In 2013, Ms. Mollsen was ranked as the No. 3 most effective fundraising consultant in the nation in an independent survey by Michael Chatman, the Ambassador of Giving and creator of #WhyiGive, one of Twitter’s most popular social media chats in philanthropy. 
Ms. Mollsen served on the board of directors of the National Catholic Development Conference (NCDC) as a corporate advisor.  Prior to this, she was honored with NCDC’s prestigious George T. Holloway Distinguished Service Award. The award, established in 1975, is given annually to a member who has made an unusually significant contribution to the cause of religious and charitable fundraising.  At the time, she was one of only two corporate members/consultants to receive this award to date.  Moreover, she was named Alumni-of-the-Year by her Catholic high school, St. Edward Catholic Central High School.  She also served on the Giving USA Foundation Board (formerly the American Association of Fundraising Counsel’s Trust for Philanthropy) for nine years. The Giving USA Foundation is the publisher of the renowned publication Giving USA, the standard on annual giving trends in the United States.
Ms. Mollsen speaks at many conferences and seminars nation-wide (and internationally) on the topic of major gift development, volunteerism, leadership, capital campaigns and campaign preparedness. Throughout her career, she has served more than a hundred not-for-profit clients including: Catholic organizations and communities of men and women religious, social service organizations, educational, healthcare, and arts organizations. In addition to serving as the account executive on select projects, Ms. Mollsen is an expert in the field of fundraising communication. Prior to becoming CEO/Owner of the firm, she managed the firm’s Communication Services Division. She is a graduate of Marquette University.