About Us

Lumen CPA, Inc. is a full service public accounting firm located in the Cleveland, Ohio suburb of Brecksville serving clients wherever they may be. We combine smart technology, smart people, and smart processes with shared knowledge gained from over 25 years in the business to help you achieve your goals. Our success comes from your peace of mind and freedom to pursue the important things in life: faith, family, and friends.

Core Values

• Absolute integrity in all we do
• Continuous learning
• Sharing of knowledge
• Collaborating with other professionals
• Standardizing best practices
• Taking chances and learning from mistakes
• Celebrating victories without resting on our laurels
• Having fun
• Valuing people above all else and
• Trusting in God from Whom all blessings flow and all glory is due

Meet the Team

Martin F. Kopmeyer, CPA - President

Marty is the president of Lumen and responsible for leading company strategy and overseeing client services. He has over twenty five years experience providing accounting, assurance, tax, and advisory services gained at KPMG, a regional firm, and as a partner in a large local accounting firm. Marty launched Lumen in 2013 with a vision to create a firm that fully leverages cloud technology to solve the pain points of small and medium sized businesses and their owners while providing a truly flexible work environment for talented accountants and advisors.

Marty earned a BSBA with a major in Accounting from John Carroll University. He serves as Treasurer of the Board of Directors for Cleveland Right to Life, Inc., Cleveland Right To Life Education, Inc., and St. Joseph’s Businessmen Network. He is an active parishioner and serves on the finance council at Immaculate Conception Parish in Cleveland. He enjoys fishing, soccer, and spending time with his family. He lives in Brecksville, Ohio with his wife Julie and their three children.

Alexander Livecchi - Accountant

Alex is an Accountant at Lumen. He has experience with tax and accounting services at another local accounting firm. In addition, he has worked in both corporate financial accounting and corporate tax. Along with his accounting experience, he brings his passion for technology to help clients navigate the ever-changing digital landscape.

Alex earned a BBA with a major in both Accounting and Information Systems from the University of Toledo. He is currently working on putting together a home workshop where he can enjoy the art of woodworking. He lives in Strongsville with his three cats.

Barbara Morgan Popelmayer, CPA

Barbara is a 25-year veteran with experience in public accounting and private industry. Barbara’s work for our clients includes performing audits, reviews, and compilations of financial statements; preparing business and individual tax returns; and general accounting assistance for a broad range of closely-held businesses.

Barbara earned a BA with a major in Accounting from the University of Akron. She is licensed by the Accountancy Board of Ohio and is a member of both the Ohio Society of Certified Public Accountants and the American Institute of Certified Public Accountants.



Julie E. Kopmeyer, MA

Julie is primarily responsible for keeping Marty in line. She provides invaluable insight into our company strategy, communications, and technical writing. She has worked as an editor for a trade magazine and as a corporate communications consultant for advertising and public relations agencies.

Julie earned a BA with a dual major in English and Communications from John Carroll University and an MA in English from the University of Akron, where she taught freshman composition. Julie is a homeschooling mother, runner, reader, and champion for the unborn. She lives in Brecksville, Ohio with her husband Marty and their three children.