Who We Are
Trusted advisors since 1989. Top 500 largest CPA firm. Customized full-service consulting, CPA, technology, and marketing services.
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We are passionate about our work and those who work for us. Learn more about what it’s like to work for one of the Top 5 Best Small Firms and Top 10 Firms For Women.
Business Consulting
Transform Your Business with Eccezion’s Comprehensive Business Consulting Services.
Buying or Selling a Business or Equipment
Software and Automation
Eccezion’s Consulting Process
CFO/CEO Advisory
Client Advisory Services
Certified Public Accountants
Helping clients achieve their financial goals by offering comprehensive accounting, tax, payroll, and audit & review services.
Accounting
Tax Services
Payroll Services
Audit and Review
Business Technology
Reliable solutions for managing your systems, securing your data, and staying ahead of the competition.
IT Security and Training
Small Business IT Consulting
Help Desk Solutions
CIO Services
VoIP Phone Systems
Business Marketing
Unleash your brand potential with tailored marketing services to take your business to the next level.
Branding Services
Digital Marketing
Website Design
Creative Services
Client Resources
Keeping you up to date with the latest tools and information.
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815-344-1300
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McHenry, IL
Eccezion 5400 West Elm Street Suite 203 McHenry, IL 60050
815-344-1320
Hours Monday – Friday 8:00 AM – 4:30 PM
Barrington, IL
Eccezion 800 Hart Road Suite 110 Barrington, IL 60010
847-382-3366
847-382-0608