SBDC Template

Mark Lumsden

Mark Lumsden


Mark E. Lumsden is a Tax Partner at the Boulder office of ACM, a full-service accounting firm. He works with clients in a variety of industries but primarily focuses in the middle market on closely held, private companies. Mark's specialties include: S-corporations, C-corporations, Partnerships, Start-ups, Tax planning, Succession planning, Tax minimization consulting. Industries include: Technology, Manufacturing, Professional firms, Construction, and Real estate. Mark joined ACM’s team in 2012, and has been in public accounting since 2005. He graduated from the University of Colorado, Boulder, with degrees in accounting and economics. Mark is a CPA and CCIFP and is a member of the Construction Financial Management Association, the Institute of Certified Construction Industry Financial Professionals, the American Institute of Certified Public Accountants, and the Colorado Society of Certified Public Accountants.

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