| $1–2 million | BECK READYMIX CONCRETE CO LTD | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | BECKWITH ELECTRONIC ENGINEERING CO | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BEHAVIOR KEYS, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $2–5 million | BELDON ROOFING & REMODELING CO. | SAN ANTONIO, TX | Zions Bank, A Division of |
| $150,000–350,000 | BELL HYDROGAS, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BELLAIRE-HAGEN, LTD. | SAN ANTONIO, TX | Texas Partners Bank |
| $150,000–350,000 | BENEFIT MANAGEMENT ADMINISTRATORS INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BENJAMIN, VANA, MARTINEZ, & CANO LLP | SAN ANTONIO, TX | Texas Partners Bank |
| $1–2 million | BENSON NISSAN INC | SAN ANTONIO, TX | First Source Federal Credit Union |
| $150,000–350,000 | BENTLEY SHEET METAL & ROOFING CO., INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BERLTEX REAL ESTATE HOLDING INC | SAN ANTONIO, TX | International Bank of Commerce |
| $350,000–1 million | BERNICE GONZALEZ, M.D., P.A. | SAN ANTONIO, TX | PlainsCapital Bank |
| $150,000–350,000 | BEST LANDSCAPES, LLC | SAN ANTONIO, TX | Zions Bank, A Division of |
| $2–5 million | BESTICA INC | SAN ANTONIO, TX | Texas Partners Bank |
| $150,000–350,000 | BEXAR CARE HOME MEDICAL EQUIPMENT & SUPPLIES LLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BEXAR COUNTY HOME CARE, INC. | SAN ANTONIO, TX | Wells Fargo Bank, National Association |
| $350,000–1 million | BEXAR COUNTY PERFORMING ARTS CENTER FOUNDATION | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BEXAR EXCAVATING & HAULING LLC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $350,000–1 million | BEYER AIR CONDITIONING AND HEATING, LLC | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | BEYER MECHANICAL LTD | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | BEYER PLUMBING COMPANY, LTD | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BHE AND ASSOCIATES LTD | SAN ANTONIO, TX | Wells Fargo Bank, National Association |
| $350,000–1 million | BIESENBACH, INC. | SAN ANTONIO, TX | American Bank National Association |
| $350,000–1 million | BIG BROTHERS BIG SISTERS OF SOUTH TEXAS, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BIG D'S MOTORSPORTS LLC | SAN ANTONIO, TX | American Momentum Bank |
| $150,000–350,000 | BIG STAR BRANDING INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BIGA INTERNATIONAL, LP | SAN ANTONIO, TX | Broadway National Bank |
| $5–10 million | BILL MILLER BAR-B-Q ENTERPRISES LTD | SAN ANTONIO, TX | Jefferson Bank |
| $350,000–1 million | BILLING CONCEPTS, INC. | SAN ANTONIO, TX | Simmons Bank |
| $150,000–350,000 | BILLY LONG ENTERPRISES, INC | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | BING LONG L L C | SAN ANTONIO, TX | Bank of America, National Association |
| $150,000–350,000 | BIOAFFINITY TECHNOLOGIES, INC. | SAN ANTONIO, TX | Texas Partners Bank |
| $1–2 million | BIODYNAMIC RESEARCH CORPORATION | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | BIRD BAKERY, LLC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | BIRDS' RDA PROMART | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BIRDY PROPERTIES LLC | SAN ANTONIO, TX | Texas Partners Bank |
| $150,000–350,000 | BIRNBAUM PROPERTY COMPANY | SAN ANTONIO, TX | Simmons Bank |
| $150,000–350,000 | BITTERBLUE, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BIZDOC, INC. | SAN ANTONIO, TX | Zions Bank, A Division of |
| $150,000–350,000 | BJN TECHNOLOGIES, LLC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | BJORNS STEREO DESIGNS, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BKNM, INC. | SAN ANTONIO, TX | River City FCU |
| $350,000–1 million | BLACK AND GOLD MOVING, LLC | SAN ANTONIO, TX | First National Bank of Omaha |
| $350,000–1 million | BLANCO CREEK FARMS | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BLCCS,LLC | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | BLEND DOCUMENT TECHNOLOGY LLC | SAN ANTONIO, TX | Bank of America, National Association |
| $350,000–1 million | BLESSED SACRAMENT CATHOLIC CHURCH | SAN ANTONIO, TX | Broadway National Bank |
| $350,000–1 million | BLUE DUCK EXPRESS, INC | SAN ANTONIO, TX | BayFirst National Bank |
| $350,000–1 million | BLUE LINE CORPORATION | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | BLUE RIBBON AUTO COLLISION CENTER, INC | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | BLUE STAR CONSTRUCTION SERVICES, L.L.C. | SAN ANTONIO, TX | Texas Partners Bank |
| $2–5 million | BLUEBONNET FOODS LP | SAN ANTONIO, TX | Truist Bank |
| $150,000–350,000 | BNG PLAZA CLUB, LLC | SAN ANTONIO, TX | Citizens Bank |
| $150,000–350,000 | BOB JENKINS PEST CONTROL, INC. | SAN ANTONIO, TX | Zions Bank, A Division of |
| $350,000–1 million | BOHANAN'S, LTD | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BOHANNON INVESTMENTS | SAN ANTONIO, TX | U.S. Bank, National Association |
| $150,000–350,000 | BOHLS EQUIPMENT COMPANY | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BOLDBRUSH, INC | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | BOLNERS INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BOTIKA CHIFA NIKKEI, LLC | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | BOURBON STREET CAFE INC | SAN ANTONIO, TX | Zions Bank, A Division of |
| $350,000–1 million | BOYS & GIRLS CLUB OF SAN ANTONIO, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | BPG & BRG LLC | SAN ANTONIO, TX | First Source Federal Credit Union |
| $150,000–350,000 | BRACKEN COLLISION 281 BULVERDE, INC. | SAN ANTONIO, TX | Broadway National Bank |
| $1–2 million | BRADFIELD PROPERTIES, INC | SAN ANTONIO, TX | Frost Bank |
| $2–5 million | BRAINATION, INC. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BRANDCAMY, INC | SAN ANTONIO, TX | Credit Human Federal Credit Union |
| $150,000–350,000 | BRANDY L MCCRAY, MD, FAAP | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | BRANNEN'S INC. | SAN ANTONIO, TX | Lone Star Capital Bank, National Association |
| $2–5 million | BRASADA FORD, LTD. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BRETT SYSTEMS INC | SAN ANTONIO, TX | Sunflower Bank National Association |
| $350,000–1 million | BRIDGEHEAD IT, INC. | SAN ANTONIO, TX | Zions Bank, A Division of |
| $150,000–350,000 | BRIGHT VANGUARD LLC | SAN ANTONIO, TX | First United Bank and Trust Company |
| $1–2 million | BRIGHTON CENTER | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BRIT-TEX NURSING SERVICES INC. | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | BRIT-TEX NURSING SERVICES, INC. | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | BRITTEX FINANCIAL INC | SAN ANTONIO, TX | Sunflower Bank National Association |
| $150,000–350,000 | BRITTON FARNSWORTH ORTHODONTICS, PLLC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BRITTS & ASSOCIATES, LLP | SAN ANTONIO, TX | Frost Bank |
| $1–2 million | BROADWAY LONE STAR, LTD | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | BROCK GUERRA STRANDMO DIMALINE JONES PC | SAN ANTONIO, TX | Wells Fargo Bank, National Association |
| $150,000–350,000 | BROKERAGE ENGINE INC | SAN ANTONIO, TX | Texas Partners Bank |
| $350,000–1 million | BROOKS HOTEL HOSPITALITY, LLC | SAN ANTONIO, TX | International Bank of Commerce |
| $150,000–350,000 | BROUSSARD GROUP | SAN ANTONIO, TX | American Bank, National Association |
| $350,000–1 million | BROWN & BROWN RESOURCES, INC. | SAN ANTONIO, TX | First Source Federal Credit Union |
| $150,000–350,000 | BROWN & ORTIZ PC | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | BROWN EXCAVATION AND UTILITIES, LLC | SAN ANTONIO, TX | Broadway National Bank |
| $150,000–350,000 | BRS INCORPORATED | SAN ANTONIO, TX | Jefferson Bank |
| $350,000–1 million | BSK RODRIGUES INVESTMENTS, LLC | SAN ANTONIO, TX | International Bank of Commerce |
| $2–5 million | BST SENIOR LIVING WEST, INC. | SAN ANTONIO, TX | Frost Bank |
| $350,000–1 million | BTL TECHNOLOGIES, INC. | SAN ANTONIO, TX | Truist Bank |
| $150,000–350,000 | BUCKHORN INVESTORS, LTD. | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BUD JONES MEAL A MINUTE CAFE INC | SAN ANTONIO, TX | Bank of America, National Association |
| $5–10 million | BUFFETS LLC | SAN ANTONIO, TX | Arizona Bank and Trust, A Division of HTLF Bank |
| $150,000–350,000 | BULVERDE GLASS INC | SAN ANTONIO, TX | Frost Bank |
| $150,000–350,000 | BURCH ENTERPRISES LLC | SAN ANTONIO, TX | First Bank |
| $350,000–1 million | BURGER ENTERPRISES INC | SAN ANTONIO, TX | Jefferson Bank |
| $150,000–350,000 | BUSINESS FINANCIAL GROUP HUMAN RESOURCE MANAGEMENT LLC | SAN ANTONIO, TX | American Bank National Association |
| $350,000–1 million | BUYERS BARRICADES SAN ANTONIO, LLC | SAN ANTONIO, TX | JPMorgan Chase Bank, National Association |
| $350,000–1 million | BWARNER, LLC | SAN ANTONIO, TX | International Bank of Commerce |