| $350,000–1 million | OPEN WATER INTERNET, INC. | SAN FRANCISCO, CA | Bank of America, National Association |
| $2–5 million | OPENERP S.A. | SAN FRANCISCO, CA | First Republic Bank |
| $150,000–350,000 | OPENSENSE, INC. DBA SENDERGEN | SAN FRANCISCO, CA | JPMorgan Chase Bank, National Association |
| $1–2 million | OPSWAT, INC | SAN FRANCISCO, CA | First Republic Bank |
| $350,000–1 million | OPTIMISM LLC | SAN FRANCISCO, CA | First Republic Bank |
| $350,000–1 million | OPTIMIZED ASPECTS, LLC | SAN FRANCISCO, CA | Fifth Third Bank |
| $150,000–350,000 | OQTON INC | SAN FRANCISCO, CA | First Republic Bank |
| $150,000–350,000 | ORBITAL SIDEKICK, INC. | SAN FRANCISCO, CA | Silicon Valley Bank |
| $150,000–350,000 | ORCHID LABS INC. | SAN FRANCISCO, CA | Silicon Valley Bank |
| $150,000–350,000 | ORDERFUL INC. | SAN FRANCISCO, CA | Silicon Valley Bank |
| $150,000–350,000 | OREGA INC. | SAN FRANCISCO, CA | Readycap Lending, LLC |
| $350,000–1 million | ORIGIN LABORATORIES, INC. | SAN FRANCISCO, CA | Avidbank |
| $150,000–350,000 | ORIGIN LABS, INC. | SAN FRANCISCO, CA | First Republic Bank |
| $150,000–350,000 | ORIGIN SOLUTIONS | SAN FRANCISCO, CA | Wells Fargo Bank, National Association |
| $150,000–350,000 | ORIGINAL HOSPITALITY GROUP LLC | SAN FRANCISCO, CA | WebBank |
| $150,000–350,000 | ORIGINAL INC | SAN FRANCISCO, CA | Silicon Valley Bank |
| $350,000–1 million | ORIGINAL SHIFT, INC | SAN FRANCISCO, CA | Silicon Valley Bank |
| $150,000–350,000 | ORPHAN ANDY'S | SAN FRANCISCO, CA | Wells Fargo Bank, National Association |
| $150,000–350,000 | ORPHOMED, INC. | SAN FRANCISCO, CA | Comerica Bank |
| $350,000–1 million | OSARO INC | SAN FRANCISCO, CA | Silicon Valley Bank |
| $350,000–1 million | OSBORNE PARTNERS CAPITAL MANAGEMENT LLC | SAN FRANCISCO, CA | First Republic Bank |
| $350,000–1 million | OSHA THAI EMBARCADERO INC | SAN FRANCISCO, CA | Wells Fargo Bank, National Association |
| $150,000–350,000 | OSHA THAI INC | SAN FRANCISCO, CA | Wells Fargo Bank, National Association |
| $150,000–350,000 | OSHA THAI SECOND STREET INC | SAN FRANCISCO, CA | Wells Fargo Bank, National Association |
| $150,000–350,000 | OSPREY SEAFOOD OF CALIFORNIA, INC. | SAN FRANCISCO, CA | Citibank, N.A. |
| $150,000–350,000 | OSSO STEAKHOUSE LLC | SAN FRANCISCO, CA | Wells Fargo Bank, National Association |
| $350,000–1 million | OSSO VR, INC. | SAN FRANCISCO, CA | Silicon Valley Bank |
| $150,000–350,000 | OTHER AVENUES FOOD STORE COOPERATIVE, INC | SAN FRANCISCO, CA | East West Bank |
| $350,000–1 million | OTHER LAB INC. | SAN FRANCISCO, CA | First Republic Bank |
| $2–5 million | OTO ANALYTICS, INC | SAN FRANCISCO, CA | Harvest Small Business Finance, LLC |
| $1–2 million | OUM & CO. LLP | SAN FRANCISCO, CA | First Republic Bank |
| $150,000–350,000 | OUR LADY OF THE VISITACION SCHOOL | SAN FRANCISCO, CA | Bank of San Francisco |
| $150,000–350,000 | OUR NEIGHBORHOOD PLACE | SAN FRANCISCO, CA | Harvest Small Business Finance, LLC |
| $150,000–350,000 | OUR PLANET RECYCLING SF LLC | SAN FRANCISCO, CA | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | OUTCO, INC. | SAN FRANCISCO, CA | Grasshopper Bank, National Association |
| $350,000–1 million | OUTERLANDS, INC. | SAN FRANCISCO, CA | Heritage Bank of Commerce |
| $150,000–350,000 | OUTFIT GENERIC, INC. | SAN FRANCISCO, CA | Celtic Bank Corporation |
| $150,000–350,000 | OUTREACH MEDIA SOLUTIONS, LLC | SAN FRANCISCO, CA | First Republic Bank |
| $350,000–1 million | OUTWARD BOUND CALIFORNIA (BRANCH OF OUTWARD BOUND USA) | SAN FRANCISCO, CA | First Republic Bank |
| $150,000–350,000 | OWEN SCHARLOTTE | SAN FRANCISCO, CA | Cross River Bank |
| $150,000–350,000 | OWEN, WICKERSHAM & ERICKSON, A PROFESSIONAL CORPORATION | SAN FRANCISCO, CA | City National Bank |
| $150,000–350,000 | OXYGEN MASSAGE THERAPY | SAN FRANCISCO, CA | Customers Bank |
| $150,000–350,000 | OXYPOWER INC | SAN FRANCISCO, CA | Intuit Financing Inc. |
| $350,000–1 million | OZUMO SF LLC | SAN FRANCISCO, CA | First Republic Bank |
| $150,000–350,000 | P&F RISTO, INC | SAN FRANCISCO, CA | Cross River Bank |
| $150,000–350,000 | P.I.N.C., INC. | SAN FRANCISCO, CA | City National Bank |
| $150,000–350,000 | P3 CONSTRUCTION | SAN FRANCISCO, CA | First Republic Bank |
| $150,000–350,000 | PABLO INC | SAN FRANCISCO, CA | Bank of America, National Association |
| $150,000–350,000 | PACERPRO, INC. | SAN FRANCISCO, CA | Mortgage Capital Development Corporation |
| $150,000–350,000 | PACIFIC AGENDA HAWAII INC | SAN FRANCISCO, CA | Celtic Bank Corporation |
| $350,000–1 million | PACIFIC BAGEL PARTNERS LP | SAN FRANCISCO, CA | JPMorgan Chase Bank, National Association |
| $350,000–1 million | PACIFIC BUSINESS GROUP ON HEALTH | SAN FRANCISCO, CA | MUFG Union Bank, National Association |
| $150,000–350,000 | PACIFIC CRATING AND SHIPPING LLC | SAN FRANCISCO, CA | Bank of America, National Association |
| $150,000–350,000 | PACIFIC DENTAL ASSOCIATES | SAN FRANCISCO, CA | First Bank |
| $150,000–350,000 | PACIFIC EMPLOYMENT LAW LLP | SAN FRANCISCO, CA | Mortgage Capital Development Corporation |
| $150,000–350,000 | PACIFIC EQUITIES WEST, LLC | SAN FRANCISCO, CA | East West Bank |
| $350,000–1 million | PACIFIC EYE ASSOCIATES, A MEDICAL CORPORATION | SAN FRANCISCO, CA | First Republic Bank |
| $350,000–1 million | PACIFIC GYNECOLOGY OBSTETRICS MEDICAL GROUP | SAN FRANCISCO, CA | Harvest Small Business Finance, LLC |
| $150,000–350,000 | PACIFIC GYNECOLOGY SURGICAL GROUP | SAN FRANCISCO, CA | First Republic Bank |
| $350,000–1 million | PACIFIC HEIGHTS SURGERY CENTER OF SAN FRANCISCO, LP | SAN FRANCISCO, CA | American Riviera Bank |
| $350,000–1 million | PACIFIC HEMATOLOGY ONCOLOGY ASSOCIATES | SAN FRANCISCO, CA | Wells Fargo Bank, National Association |
| $1–2 million | PACIFIC INPATIENT MEDICAL GROUP | SAN FRANCISCO, CA | Westamerica Bank |
| $150,000–350,000 | PACIFIC INTERNAL MEDICINE ASSOCIATES | SAN FRANCISCO, CA | Northeast Bank |
| $2–5 million | PACIFIC LANGHAM NEW YORK CORPORATION | SAN FRANCISCO, CA | Citibank, N.A. |
| $150,000–350,000 | PACIFIC NEUROPHYSIOLOGICAL SYSTEMS | SAN FRANCISCO, CA | Celtic Bank Corporation |
| $350,000–1 million | PACIFIC PARK MANAGEMENT INC | SAN FRANCISCO, CA | Celtic Bank Corporation |
| $150,000–350,000 | PACIFIC PEDIATRICS MEDICAL GROUP, INC | SAN FRANCISCO, CA | Westamerica Bank |
| $150,000–350,000 | PACIFIC PENSION & INVESTMENT INSTITUTE | SAN FRANCISCO, CA | First Republic Bank |
| $350,000–1 million | PACIFIC PRIMARY | SAN FRANCISCO, CA | First Republic Bank |
| $350,000–1 million | PACIFIC RESTAURANT VENTURES, L.L.C. | SAN FRANCISCO, CA | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | PACIFIC SPECIALIST SURGICAL GROUP DBA HAYES VALLEY SURGERY CENTER | SAN FRANCISCO, CA | First Republic Bank |
| $150,000–350,000 | PACIFIC STANDARD LLC | SAN FRANCISCO, CA | United Community Bank |
| $150,000–350,000 | PACIFIC VISION FOUNDATION | SAN FRANCISCO, CA | Celtic Bank Corporation |
| $1–2 million | PACIFIC WASHINGTON DC MANAGER CORP | SAN FRANCISCO, CA | Citibank, N.A. |
| $350,000–1 million | PACIFIC WOMENS OBSTETRICS & GYNECOLOGY | SAN FRANCISCO, CA | Westamerica Bank |
| $350,000–1 million | PACKLANE, INC. | SAN FRANCISCO, CA | Bank of America, National Association |
| $150,000–350,000 | PAGCO CONSTRUCTION, INC. | SAN FRANCISCO, CA | Cross River Bank |
| $350,000–1 million | PAGE & TURNBULL | SAN FRANCISCO, CA | Bank of the West |
| $150,000–350,000 | PAIGE STRUCTURAL GLASS COMPANY | SAN FRANCISCO, CA | Bank of America, National Association |
| $150,000–350,000 | PAKAL TECHNOLOGIES, INC. | SAN FRANCISCO, CA | Silicon Valley Bank |
| $350,000–1 million | PAKIN CORPORATION | SAN FRANCISCO, CA | Bank of America, National Association |
| $150,000–350,000 | PALACE GAMES, LLC | SAN FRANCISCO, CA | First Republic Bank |
| $150,000–350,000 | PALACE OF FINE ARTS LEAGUE | SAN FRANCISCO, CA | CRF Small Business Loan Company, LLC |
| $150,000–350,000 | PALADIN DATA INSURANCE CORP. | SAN FRANCISCO, CA | Silicon Valley Bank |
| $350,000–1 million | PALETTE GS LLC | SAN FRANCISCO, CA | East West Bank |
| $350,000–1 million | PALM DESERT LODGING, LLC | SAN FRANCISCO, CA | Riverview Bank |
| $150,000–350,000 | PALM VENTURES GROUP, INC. | SAN FRANCISCO, CA | Silicon Valley Bank |
| $350,000–1 million | PAN-MED ENTERPRISES | SAN FRANCISCO, CA | First Bank |
| $350,000–1 million | PAN-O-RAMA BAKING, INC. | SAN FRANCISCO, CA | Umpqua Bank |
| $150,000–350,000 | PANGEA LEGAL SERVICES | SAN FRANCISCO, CA | CRF Small Business Loan Company, LLC |
| $1–2 million | PANNA, LLC | SAN FRANCISCO, CA | First Republic Bank |
| $350,000–1 million | PANOPLY TECHNOLOGIES, INC. | SAN FRANCISCO, CA | Comerica Bank |
| $350,000–1 million | PANORAMA ENVIRONMENTAL, INC | SAN FRANCISCO, CA | Bank of San Francisco |
| $150,000–350,000 | PANORAMIC MANAGEMENT LLC | SAN FRANCISCO, CA | Wells Fargo Bank, National Association |
| $150,000–350,000 | PAPA BIRD LLC | SAN FRANCISCO, CA | Bank of America, National Association |
| $150,000–350,000 | PAPAZOTE COLE, LLC | SAN FRANCISCO, CA | TransPecos Banks, SSB. |
| $350,000–1 million | PAPERG, INC. | SAN FRANCISCO, CA | Radius Bank |
| $350,000–1 million | PARADIGM HEALTHCARE SERVICES LLC | SAN FRANCISCO, CA | First Republic Bank |
| $350,000–1 million | PARADIGM STRATEGY INC. | SAN FRANCISCO, CA | Bank of America, National Association |
| $350,000–1 million | PARADIGM STRUCTURAL ENGINEERS, INC. | SAN FRANCISCO, CA | First Republic Bank |