Our Story, Our Expertise.
ATA Group, LLP is a full-service public accounting firm based in Arlington Heights, Illinois, serving clients throughout the Chicagoland area and beyond. For more than 40 years, we have partnered with individuals, businesses, non-profit organizations, and government entities, delivering financial guidance grounded in experience, integrity, and clear, timely communication.
Our CPAs take a practical, client-focused approach to accounting, tax, audit, and advisory services. We combine deep technical expertise with personalized attention to help clients navigate complexity, make informed financial decisions, and pursue opportunities for growth.
Our Commitment to Quality.
At ATA Group, quality is more than a standard—it's a responsibility. We maintain rigorous quality control procedures and adhere to the highest professional standards to ensure accurate, reliable, and consistent results.
Our participation in the AICPA Peer Review Program reflects our commitment to accountability, continuous improvement, and professional excellence. Through ongoing education, oversight, and adherence to industry standards, we strive to deliver the assurance and peace of mind our clients deserve.
Please click below to download a copy of our Peer Review Report on the Firm's System of Quality Control.