Cahill & Jensen CPAs, LLC is a full-service public accounting firm serving individual and business clients in Glen Ellyn, IL, the Chicagoland area, and beyond. The firm provides accounting and tax support for clients such as individuals, small businesses, and high net worth individuals, with services spanning tax preparation, planning, bookkeeping, payroll, and business advisory needs.

Its listed capabilities include business and individual tax preparation, estate and trust tax planning and preparation, exempt organization tax preparation, IRS and state tax controversy representation, sales and payroll tax preparation, and financial statement reporting. The firm also supports QuickBooks accounting services, software selection, implementation, training, financial projections, internal control analysis, and management advisory work.