MarksNelson (formerly Block Small Business) is the 17th fastest growing CPA firm in the country and offers accounting, tax and consulting services to businesses with less than $30MM in revenue. Our offering is the best combination of service and technology in which every client is served by a designated team that uses state-of-the-art software to bring speed, simplicity and transparency to you and the client.



We enable B2B CFOs to rely on us to handle the transaction and light controller work for your clients. As a result, B2B CFOs receive high-quality, consistent work product for each and every client we share and can focus exclusively on the CFO-level work. We remove the friction that comes with servicing a diverse client base so you are freed up to take on more clients or spend more time on the golf course.

Jennifer Katrulya

Outsourced Accounting

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