| NVNoe Valley Coffee CO | San Francisco | CA | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| NONokia of American Corporation | San Francisco | CA | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| NCNorth Coast Steel | San Francisco | CA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| NDNotre Dame Plaza, Dba: Notre Dame Senior Plaza | San Francisco | CA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| NCNueva Castilla Iron Works, INC. | San Francisco | CA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| NNumerai | San Francisco | CA | Transportation Equipment Manufacturing336992 | — | ◇ UNVERIFIED |
| OCOakes Children's Center | San Francisco | CA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| ODOberon Design | San Francisco | CA | Textile Product Mills314120 | — | ◇ UNVERIFIED |
| OSOcean Sash & Door INC | San Francisco | CA | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| OGOctagon Graphics INC | San Francisco | CA | Printing and Related Support Activities323122 | — | ◇ UNVERIFIED |
| OIOhio INC | San Francisco | CA | Furniture and Related Product Manufacturing337122 | — | ◇ UNVERIFIED |
| OBOlivier's Butchery | San Francisco | CA | Food Manufacturing311612 | — | ◇ UNVERIFIED |
| OHOne Hat One Hand LLC | San Francisco | CA | Leather and Allied Product Manufacturing316110 | — | ◇ UNVERIFIED |
| OIO'neill INC | San Francisco | CA | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| OROne Rincon Hill Association | San Francisco | CA | Textile Mills313310 | — | ◇ UNVERIFIED |
| OPOriginal Pattern, Inc. | San Francisco | CA | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| OGOsterhout Group INC Dba Osterhout Design Group | San Francisco | CA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| OEOtis Elevator Company | San Francisco | CA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| OBOyster Bed Sleep Shop | San Francisco | CA | Furniture and Related Product Manufacturing337122 | — | ◇ UNVERIFIED |
| PCPacific Cement CORP | San Francisco | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| POPacific Oral and Maxillofacial Surgery Center | San Francisco | CA | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| PRPage Rockwell | San Francisco | CA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| PSPan-glo Services INC | San Francisco | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| PEParamount Elevator Corporation | San Francisco | CA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| PBParisian Bakeries INC | San Francisco | CA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| PFParkway Four Properties, LLC | San Francisco | CA | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| PFPascual's Furniture | San Francisco | CA | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| PIPasqua INC | San Francisco | CA | Food Manufacturing311920 | — | ◇ UNVERIFIED |
| PFPatrick & Friends INC Dba Aimss | San Francisco | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| PLPatterns Ltd., INC. | San Francisco | CA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| PSPdp San Francisco Mob LLC | San Francisco | CA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| PTPendulum Therapeutics, INC. | San Francisco | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| PBPhoto Booth Museum - Photomatica Photo Booth CO | San Francisco | CA | Chemical Manufacturing325992 | — | ◇ UNVERIFIED |
| P3Pier 33 | San Francisco | CA | Food Manufacturing311712 | — | ◇ UNVERIFIED |
| PPPirates Press, INC. | San Francisco | CA | Printing and Related Support Activities323112 | — | ◇ UNVERIFIED |
| PLPlnt Labs | San Francisco | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| PLPopsockets LLC | San Francisco | CA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| POPort of San Francisco | San Francisco | CA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| POPort of San Francisco - Pier 70 | San Francisco | CA | Transportation Equipment Manufacturing336611 | — | ◇ UNVERIFIED |
| PIPre-press International Dba Digital Pre-press Int. | San Francisco | CA | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| PWPress Works | San Francisco | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| PAPrima Acquire INC. | San Francisco | CA | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| PIPrimera Iglesia Bautista Del Sur | San Francisco | CA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| PCPrintime Corporation | San Francisco | CA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| PMProperty Mangement Consultancy | San Francisco | CA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| PMProperty Mangement Consultancy | San Francisco | CA | Machinery Manufacturing333923 | — | ◇ UNVERIFIED |
| PBProsetta Biosciences INC | San Francisco | CA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| PSPurple Star Md | San Francisco | CA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| PSPurple Star Md | San Francisco | CA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| QQQ Q Printing | San Francisco | CA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |