Dynamic President with a highly successful track record of achieving profitability and growth in LEAN and Six Sigma manufacturing environments. Global marketing expertise includes B2B and B2C strategic planning, branding, communications, and customer-focused, innovative, new product development (NPD). Proven ability to grow business by improving customer satisfaction, operations, profitability, asset management, and by capturing new and emerging market business. Change leader with an open communication style that empowers the organization. Divestiture, contract negotiation and supplier management experience.  Bachelor of Science in Engineering and MBA. Six Sigma Green Belt from the Chicago Deming Association-Six Sigma Masters Program and Lean Management Certification


Advent specializes in developing customized business solutions to help clients and companies increase revenues and profitability.  Advents service offering includes Management Consulting, Marketing, Online Marketing and Lead Generation. 


Our experienced professionals are available to help businesses who may not have expert personnel on staff, or who need additional support for their already busy personnel. 


Our goal is to help your company increase revenues and profits through improved business strategies, processes and marketing to attract more customers, raise customer awareness and increase sales.


Whether you need help with strategy to full implementation, contact Advent today to discuss your needs and learn more about our management consulting and marketing solutions.


About Us

Advent Business Solutions is a division of Advent Enterprises Inc.  © 2023  ALL RIGHTS RESERVED.


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Kelly Leithner


ph. 847.532.4484

Kelly Leithner

Founder & President


General Management & Consulting

Strategic Business Planning & Implementation

Marketing Strategy & Implementation

New Product Development

Lean Six Sigma Operations

Online Marketing