| Accordance Systems | Iowa |
| AccordSoftware, Inc. | |
| Accorto, Inc. | California |
| AccountabilIT, LLC | Arizona |
| Accountable Business Solutions | Montana |
| Accountable HQ, Inc. | |
| Accounted4, LLC | Pennsylvania |
| Accounting Advisors, Inc. | Georgia |
| Accounting ASAP | Georgia |
| Accounting Micro Systems | California |
| AcCounting OnComputers, Inc. | California |
| Accounting Software 411, LLC | California |
| Accounting Systems Consulting Group, LLC | Louisiana |
| AccountingSuite | California |
| AccountMate Software Corporation | California |
| Accountnet, Inc. | New York |
| Accram, Inc. | Arizona |
| Accredify, Inc. | |
| Accredited Standards Committee X12 | Virginia |
| Accreon, Inc. | Massachusetts |
| Accrete, Inc. | New York |
| Accretion Digital | |
| Accretive Capital Partners, LLC | Connecticut |
| Accrisoft Corporation | Florida |
| Accrualify, Inc. | California |
| Accrue, Inc. | New York |
| Accruent | Texas |
| AccruePartners | North Carolina |
| Accruit Holdings, LLC | |
| Acctimize | |
| Acctivate Inventory Software | Texas |
| Acctrack Computer Consultants, Inc. | New York |
| AcctVantage | North Carolina |
| Accu-Break Pharmaceuticals, Inc. | |
| Accu-Tax | Oregon |
| Accu-Tech | Georgia |
| AccuBar | Colorado |
| Accubill, Inc. | California |
| Accubits Technologies | Virginia |
| AccuBoost | |
| AccuBuild | Texas |
| AccuChain | California |
| Accucode, Inc. | Colorado |
| AccuData Integrated Marketing | Florida |
| Accudata Service, Inc. | Florida |
| AccuDava, Inc. | |
| Accufix Surgical, Inc. | |
| Accuflow Systems | |
| AccuFund, Inc. | Massachusetts |
| AccuGenomics, Inc. | North Carolina |