| NOLTE, CORNMAN & JOHNSON, P.C. | NEWTON, IA | 463 | 111 | 2025 |
| DENMAN & COMPANY, LLP | WEST DES MOINES, IA | 316 | 70 | 2025 |
| WILLIAMS & COMPANY, P.C. | LE MARS, IA | 215 | 52 | 2025 |
| Anderson, Larkin & Co. P.C. | Ottumwa, IA | 188 | 46 | 2026 |
| AUDITOR OF STATE | DES MOINES, IA | 136 | 63 | 2025 |
| KING, REINSCH, PROSSER & CO., L.L.P. | SIOUX CITY, IA | 132 | 29 | 2025 |
| TD&T CPAS AND ADVISORS, P.C. | PELLA, IA | 122 | 27 | 2022 |
| HACKER, NELSON & CO., P.C. | DECORAH, IA | 122 | 22 | 2025 |
| SCHNURR & COMPANY, LLP | FORT DODGE, IA | 122 | 28 | 2025 |
| EIDE BAILLY LLP | DUBUQUE, IA | 115 | 36 | 2025 |
| MERIWETHER, WILSON AND COMPANY, PLLC | WEST DES MOINES, IA | 113 | 16 | 2025 |
| GRONEWOLD, BELL, KYHNN & CO. P.C. | ATLANTIC, IA | 110 | 28 | 2025 |
| HOGAN-HANSEN, P.C. | MASON CITY, IA | 108 | 20 | 2025 |
| FORGE FINANCIAL & MANAGEMENT CONSULTING | WEST DES MOINES, IA | 95 | 40 | 2025 |
| HAMILTON ASSOCIATES, P.C. | COUNCIL BLUFFS, IA | 82 | 23 | 2025 |
| HUNT & ASSOCIATES, P.C. | OSKALOOSA, IA | 76 | 25 | 2021 |
| KAY L CHAPMAN CPA PC | MUSCATINE, IA | 71 | 36 | 2025 |
| Iowa Auditor of State | Des Moines, IA | 67 | 34 | 2025 |
| CORNWELL, FRIDERES, MAHER & ASSOCIATES, P.L.C. | FORT DODGE, IA | 66 | 13 | 2025 |
| NICHOLS, RISE & COMPANY, L.L.P. | SIOUX CITY, IA | 66 | 11 | 2024 |
| VAN MAANEN, SIETSTRA, MEYER & NIKKEL, P.C. | PELLA, IA | 63 | 17 | 2024 |
| SCHROER & ASSOCIATES, PC | COUNCIL BLUFFS, IA | 63 | 21 | 2025 |
| WINKEL, PARKER & FOSTER, CPA PC | CLINTON, IA | 57 | 15 | 2025 |
| Terpstra Hoke & Associates P.C. | Knoxville, IA | 57 | 23 | 2025 |
| AUDITOR OF STATE | DES MOINES, IA | 56 | 36 | 2025 |
| FALLER, KINCHELOE & CO., PLC | DES MOINES, IA | 53 | 21 | 2025 |
| TP ANDERSON & COMPANY, PC | HUMBOLDT, IA | 44 | 15 | 2025 |
| Anderson, Lower, Whitlow, P.C. | Bettendorf, IA | 37 | 12 | 2025 |
| MCGOWEN, HURST, CLARK & SMITH, P.C. | WEST DES MOINES, IA | 35 | 9 | 2025 |
| GARDINER THOMSEN, P.C. | CHARLES CITY, IA | 34 | 10 | 2025 |
| PITTMAN & COMPANY, LLP | URBANDALE, IA | 33 | 4 | 2025 |
| CORNWELL, FRIDERES, MAHER & ASSOCIATES, P.L.C. | FORT DODGE, IA | 33 | 11 | 2025 |
| WINTHER, STAVE & CO., LLP | SPENCER, IA | 32 | 12 | 2025 |
| LARRY PUMP CPA | CHARLES CITY, IA | 26 | 4 | 2024 |
| BROOKS LODDEN, PC | WEST DES MOINES, IA | 24 | 10 | 2019 |
| KEITH OLTROGGE CPA PC | DENVER, IA | 23 | 6 | 2021 |
| Porter & Company, PC | Sioux City, IA | 21 | 15 | 2024 |
| JOHN D MORROW CPA | WALL LAKE, IA | 20 | 4 | 2023 |
| MARTENS & COMPANY, CPA, LLP | WEST DES MOINES, IA | 20 | 5 | 2025 |
| KRONLAGE & OLSON, P.C. | CHARLES CITY, IA | 16 | 2 | 2025 |
| RACHELLE K. THOMPSON, CPA, PLLC | HAMPTON, IA | 16 | 4 | 2025 |
| COMMUNITY CPA & ASSOCIATES INC | DES MOINES, IA | 15 | 7 | 2024 |
| DE NOBLE, AUSTIN & COMPANY PC | ROCK RAPIDS, IA | 13 | 5 | 2025 |
| CPA ASSOCIATES PC | BURLINGTON, IA | 13 | 3 | 2022 |
| HOUSTON & SEEMAN, PC | BOONE, IA | 11 | 5 | 2024 |
| BARR & COMPANY, LLC | OTTUMWA, IA | 10 | 10 | 2025 |
| CARNEY ALEXANDER MAROLD & CO., L.L.P. | WATERLOO, IA | 10 | 2 | 2024 |
| RYUN, GIVENS & COMPANY, P.L.C. | URBANDALE, IA | 9 | 4 | 2021 |
| ROLAND & DIELEMAN CPAS | GRINNELL, IA | 9 | 2 | 2023 |
| O'CONNOR, BROOKS & CO., P.C. | DUBUQUE, IA | 9 | 4 | 2022 |
| BOWMAN AND MILLER, P.C. | MARSHALLTOWN, IA | 8 | 4 | 2024 |
| JIM KIRCHER & ASSOCIATES, P.C. | DUBUQUE, IA | 8 | 1 | 2023 |
| LWBJ, LLP | WEST DES MOINES, IA | 8 | 3 | 2021 |
| AUDITOR OF STATE | DES MOINES, IA | 7 | 2 | 2023 |
| VAN BRUGGEN & VANDE VEGTE, P.C. | ROCK VALLEY, IA | 7 | 1 | 2022 |
| DELOITTE & TOUCHE LLP | DES MOINES, IA | 6 | 1 | 2022 |
| BURKHARDT & DAWSON CPA'S | CHEROKEE, IA | 6 | 2 | 2025 |
| Ted M. Wiegand, CPA | Mount Pleasant, IA | 6 | 3 | 2025 |
| RSM US LLP | DES MOINES, IA | 5 | 1 | 2024 |
| Fort & Schlegel CPA | Fort Dodge, IA | 5 | 3 | 2024 |
| Ryun Givens & Company PC | Urbandale, IA | 5 | 3 | 2022 |
| HUNZELMAN, PUTZIER & CO., PLC | STORM LAKE, IA | 4 | 3 | 2021 |
| Tailored Tax and Accounting LLC dba Taylor CPAs and Advisors, PLLC | Iowa City, IA | 4 | 4 | 2024 |
| SCHNURR & COMPANY, LLP | FORT DODGE, IA | 3 | 1 | 2021 |
| Auditor of State of iowa | Des Moines, IA | 3 | 3 | 2023 |
| DENNIS P. DONOVAN | CHARLES CITY, IA | 3 | 1 | 2019 |
| HAMILTON ASSOCIATES, P.C. | COUNCIL BLUFFS, IA | 3 | 1 | 2020 |
| Desmond, CPA, PLC | West Des Moines, IA | 3 | 1 | 2023 |
| MINER, GILROY AND MEADE CPA, PC | CLINTON, IA | 2 | 2 | 2020 |
| WINKEL, PARKER & FOSTER, CPA PC | CLINTON, IA | 2 | 1 | 2018 |
| RENNER & BIRCHEM, PC | MASON CITY, IA | 2 | 2 | 2018 |
| Ben Lubkeman, CPA | Des Moines, IA | 2 | 1 | 2024 |
| BAC CPA, LLC | DYERSVILLE, IA | 2 | 1 | 2025 |
| AUDITOR OF STATE | DES MOINES, IA | 1 | 1 | 2017 |
| GABELMANN & ASSOCIATES, P.C. | BETTENDORF, IA | 1 | 1 | 2017 |
| AUDITOR OF STATE | DES MOINES, IA | 1 | 1 | 2021 |
| Kay L Chapman CPA, PC | MUSCATINE, IA | 1 | 1 | 2025 |
| Ruzicka & Associates PLLC | La Porte City, IA | 1 | 1 | 2025 |
| Ryun, Givens and Company, PC | Urbandale, IA | 1 | 1 | 2021 |
| CHARLIE BROWN CHILD CARE | CHARLES CITY, IA | 1 | 1 | 2018 |
| HACKER, NELSON & CO., P.C. | DECORAH, IA | 1 | 1 | 2025 |
| PITTMAN & COMPANY LLP | URBANDALE, IA | 1 | 1 | 2021 |
| GOSLING & COMPANY, P.C. | MANCHESTER, IA | 1 | 1 | 2018 |
| ROTH & COMPANY, P.C. | DES MOINES, IA | 1 | 1 | 2016 |
| BERGANKDV, LTD. | WATERLOO, IA | 1 | 1 | 2018 |
| Iowa Auditor of State | Des Moines, IA | 1 | 1 | 2024 |
| AUDITOR OF STATE | DES MOINES, IA | 1 | 1 | 2016 |
| RSM US LLP | CEDAR RAPIDS, IA | 1 | 1 | 2022 |
| Porter & Company, PC | Sioux City, IA | 1 | 1 | 2023 |
| FRED WEBER, CPA | HINTON, IA | 1 | 1 | 2023 |
