| American Picture Frame, Inc. | Manufacturing | 000126674 | 2002-08-26 | Active | WARWICK |
| AMERICAN PIERCED EARRINGS INTERNATIONAL, INC. | — | 000036484 | 1985-11-15 | Revoked | — |
| AMERICAN PIEZ INC | — | 001686621 | 2018-07-24 | Revoked | — |
| American Pile and Foundation LLC | Construction | 001724662 | 2021-05-26 | Active | SOMERVILLE |
| AMERICAN PILE DRIVING CORPORATION | — | 000020166 | 1980-04-03 | Revoked | — |
| American Piping System, LLC | — | 000143312 | 2004-10-12 | Dissolved | CRANSTON |
| American Pit Bull Terrier Club of New England | — | 000039462 | 1986-07-17 | Revoked | — |
| American Pizza, LLC | — | 000792026 | 2012-07-27 | Revoked | PROVIDENCE |
| American Planning Association - Rhode Island Chapter | — | 000930905 | 2014-05-08 | Revoked | PROVIDENCE |
| American Plant Maintenance, Inc | Professional services | 000876768 | 2014-01-02 | Withdrawn | WOBURN |
| American Plant Maintenance, LLC | Professional services | 001663754 | 2016-05-31 | Active | WOBURN |
| American Plant Products & Services, Inc. | — | 000911423 | 2014-03-14 | Revoked | OKLAHOMA CITY |
| American Plant Services, Inc. | — | 000142815 | 2004-09-17 | Dissolved | PASCOAG |
| AMERICAN PLASTERING AND PAINTING INC | Construction | 001727749 | 2021-08-04 | Active | FALL RIVER |
| American Plastic Products, Inc. | — | 000067734 | 1992-04-08 | Revoked | CRANSTON |
| American Plating Co., Inc. | Manufacturing | 000240038 | 2007-09-17 | Active | EAST PROVIDENCE |
| American Plaza I, Inc. | — | 000070737 | 1992-12-23 | Revoked | RUMFORD |
| American Plumbing & heating Co. | — | 000000919 | 1973-03-27 | Revoked | — |
| American Plumbing & Heating Corporation | — | 000144630 | 2004-12-17 | Revoked | NORWELL |
| AMERICAN POLISH MUTUAL ASSOCIATION | — | 000047514 | 1988-06-30 | Dissolved | — |
| AMERICAN POLISH MUTUAL ASSOCIATION INC | — | 000056700 | 1989-07-17 | Revoked | — |
| American Polish Political Club | — | 000026387 | 1911-08-23 | Revoked | PROVIDENCE |
| American Polishing Co., Inc. | — | 000000920 | 1982-01-29 | Revoked | — |
| American Port Security Services, LLC | — | 000146580 | 2005-03-17 | Dissolved | PROVIDENCE |
| American Portfolio Mortgage Corporation | Finance and insurance | 001701366 | 2019-10-28 | Active | PALATINE |
| AMERICAN PORTFOLIOS ADVISIORS, INC. | Finance and insurance | 001687507 | 2018-08-21 | Revoked | HOLBROOK |
| American Portfolios Advisors, Inc | — | 000593702 | 2011-03-07 | Revoked | HOLBROOK |
| American Portfolios Advisors, Inc. | Finance and insurance | 001754867 | 2023-03-22 | Active | HOLBROOK |
| American Portfolios Financial Services, Inc. | Finance and insurance | 000575904 | 2011-01-28 | Withdrawn | HOLBROOK |
| American Portuguese Studies Association (APSA) | Other services | 001744864 | 2022-08-16 | Active | PROVIDENCE |
| American Postal Workers Union of R.I., Inc. | — | 000045982 | 1988-02-11 | Revoked | — |
| AMERICAN POSTPARTUM CARE ALLIANCE, INC. | — | 000071828 | 1993-03-23 | Revoked | WARWICK |
| American Power & Gas of RI, LLC | Utilities | 001785704 | 2025-02-13 | Active | SEMINOLE |
| American Power Development, LLC | Utilities | 001782392 | 2024-12-16 | Active | PROVIDENCE |
| American Power Metrics, LLC | — | 000792498 | 2012-08-17 | Dissolved | EAST GREENWICH |
| American Powerboats, Inc. | — | 000042151 | 1987-03-11 | Revoked | — |
| American Powergy, Inc. | — | 000090128 | 1996-06-20 | Revoked | PROVIDENCE |
| American PowerWash, LLC | — | 000133676 | 2003-07-30 | Revoked | CRANSTON |
| American Prankster, LLC | — | 000321797 | 2008-03-27 | Revoked | PAWTUCKET |
| AMERICAN PRECISION BELLOWS, INC. | — | 000062200 | 1990-10-22 | Revoked | — |
| American Premier Underwriters, Inc. | Company management | 000025837 | 1978-10-24 | Withdrawn | CINCINNATI |
| AMERICAN PRIDE CONSTRUCTION L.L.C. | Construction | 000154058 | 2006-02-27 | Active | COVENTRY |
| American Pride Development, LLC | Real estate and leasing | 001672355 | 2017-03-30 | Revoked | EAST PROVIDENCE |
| American Pride Insulation Co., Inc. | — | 000716533 | 2011-10-06 | Revoked | PROVIDENCE |
| American Pride Plumbing & Heating, LLC | Construction | 000658936 | 2011-05-06 | Active | WARWICK |
| American Pride Promotional Products, Inc. | — | 000770821 | 2012-01-23 | Revoked | # |
| American Pride Properties Group LLC | Construction | 001677316 | 2017-09-19 | Active | DARTMOUTH |
| American Printing House for the Blind | Manufacturing | 001755693 | 2023-04-07 | Active | LOUISVILLE |
| AMERICAN PRIVAD CORPORATION | — | 000091221 | 1996-08-29 | Revoked | — |
| AMERICAN PROCESS CONSULTANTS, LTD. | — | 000058856 | 1989-12-28 | Revoked | — |