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General Info
Henjes Conner & Williams, P.C. is a Certified Public Accounting and Consulting firm located in Sioux City, IA. The company was established in 1990 when six partners left their regional accounting and consulting firm to form a new company. Today, Henjes Conner & Williams, P.C. has seven shareholders and a support staff of more than twenty people. The firm hires the best graduates from colleges in northwest Iowa, southeast South Dakota and northeast Nebraska. The firm strongly believes that promotions should come from within the company and all partners, and most senior staff, have many years of experience with Henjes Conner & Williams, P.C. The majority of our personnel started with the firm as staff accountants. The clients served by Henjes Conner & Williams, P.C. are primarily located in Siouxland, an area within a fifty mile radius of Sioux City and consisting of Iowa, Nebraska and South Dakota. Our clients include many small and medium-sized family owned businesses, non-profit organizations, professionals, and some of the largest businesses in our practice area. The firm serves clients in a wide range of industries, including manufacturing, construction, colleges, nursing homes, real estate companies, sports teams, medical practices, fast food sales, and financial institutions. Henjes Conner & Williams, P.C. is a firm that is committed to providing outstanding service to all of our clients, opportunities to all of our personnel, and a friendly and professional work environment for our staff. As a firm, we are committed to being contributing members in Siouxland, with a long-standing tradition of community involvement and civic responsibility.
Extra Phones

Phone: 712-277-3931

Fax: 712-277-3931

TollFree: 800-274-3931

Regular Hours
Mon - Fri:
Sat - SunClosed
Social Links
Tax Return Preparation, Accounting Services, Bookkeeping, Business Coaches & Consultants, Business Management, Financial Services, Taxes-Consultants & Representatives
  • Bookkeeping Services
  • Tax Problem Resolution
  • Small Business Tax Return Preparation
  • Estate Tax Returns
  • Payroll Tax Returns
  • Financial Planning
  • Personal Tax Returns
  • Self-Employed Tax Returns
  • Government Auditing
  • Corporate Tax Return Preparation
  • Auditors
  • Tax Consulting
  • Amended Tax Returns
  • Prior Year Tax Returns
  • Electronic Tax Filing
  • Individual Tax Return Preparation
  • Sales Tax Returns
  • PPP Expense Deduction Calculation
  • Business Tax Return Preparation
  • Accounts Payable & Receivable
  • Trusts
  • Tax Planning
  • Payroll Services
  • E-File Status Checking
  • Tax Return Preparation
  • State Tax Returns
  • Federal Tax Returns
  • Trust Tax Returns
  • Business Planning
  • Public Accounting
Payment Options

Certified Public Accountant

Certified Management Accountants

Data provided by one or more of the following: DexYP, Data Axle, Yext.