Most active commercial contractors in San Francisco

1,201 contractors are named on 3 or more commercial and multifamily building permits in San Francisco’s records, ranked by permit count. Crime Watch Security Sys Llc leads with 335.

Source: building permit records from San Francisco's Socrata open-data portal, checked daily. Data through October 28, 2026. How we count

1. 1Crime Watch Security Sys Llc335 permits · latest Aug 24
2. 2Novo Construction Inc261 permits · latest Oct 27
3. 3Skyline Construction260 permits · latest Oct 29
4. 4Camp Roofing Ltd Dba Camp Construction247 permits · latest Oct 29
5. 5Bcci Construction Company217 permits · latest Oct 27
6. 6Gci, Inc217 permits · latest Oct 29
7. 7Pyro-Comm Systems, Inc.177 permits · latest Sep 29
8. 8Byington Electric Corp172 permits · latest Oct 29
9. 9Rapid Fire Safety & Security Llc168 permits · latest Sep 30
10. 10Principal Builders Inc.162 permits · latest Oct 28
11. 11Siemens Industry, Inc.161 permits · latest Jun 11
12. 12San Francisco Fire Protection146 permits · latest Feb 6
13. 13Source Planning And Construction Inc137 permits · latest Oct 29
14. 14Regency General Contractors Inc134 permits · latest Oct 13
15. 15Pioneer Fire Inc.130 permits · latest Apr 1
16. 16R L H Fire Protection Inc124 permits · latest Apr 14
17. 17Anderson, Rowe & Buckley, Inc.122 permits · latest Sep 14
18. 18Hathaway Dinwiddie Co.115 permits · latest Oct 27
19. 19Field Construction Inc.114 permits · latest Oct 16
20. 20Golden Gate Fire Protection Inc112 permits · latest Apr 9
21. 21M C S Construction Services109 permits · latest Oct 15
22. 22Bilcor Inc102 permits · latest Sep 9
23. 23Peacock Construction101 permits · latest Oct 23
24. 24Ayoob & Peery Plumbing Co Inc96 permits · latest Sep 24
25. 25Sabah International Incorporated85 permits · latest Oct 14
26. 26Sc Builders, Inc85 permits · latest Oct 19
27. 27Commercial Fire Protection Llc80 permits · latest Sep 29
28. 28Everon Llc80 permits · latest Jul 13
29. 29Occidental Express78 permits · latest Sep 17
30. 30Aura Fire Safety76 permits · latest May 5
31. 31International Fire Inc74 permits · latest May 13
32. 32Richlen Construction66 permits · latest Oct 29
33. 33Sure, Inc.66 permits · latest Oct 28
34. 34Johnson Controls Fire63 permits · latest Sep 1
35. 35Honeywell International, Inc58 permits · latest Apr 14
36. 36Bobcomm Llc Dba Pacific Das Llc.57 permits · latest Oct 2
37. 37Ningzhi Hu Signs Company57 permits · latest Jun 5
38. 38Redlog Flooring Services Corp56 permits · latest Oct 23
39. 39D 7 Roofing Services Inc54 permits · latest Aug 4
40. 40Plant Construction Co, Lp54 permits · latest Oct 27
41. 41Dpr Construction A53 permits · latest Oct 27
42. 42Atlas Roofing Bay Area52 permits · latest Jun 23
43. 43C C I Commercial Construction & Improv52 permits · latest Oct 1
44. 44Fog City Roofiing Llc52 permits · latest Jul 30
45. 45The G B Group Inc.52 permits · latest Oct 27
46. 46Build Group Inc.51 permits · latest Oct 22
47. 47G M Building And Construction Inc51 permits · latest Oct 29
48. 48Halyard Inc49 permits · latest Oct 28
49. 49M & L Construction49 permits · latest Oct 14
50. 50Axel8 Construction48 permits · latest Sep 29
51. 51United Systems Fire And Security Llc47 permits · latest Oct 9
52. 52Bay Alarm Company46 permits · latest May 4
53. 53Swinerton Builders46 permits · latest Oct 22
54. 54Apollo Building & Roofing Group Inc.45 permits · latest Jun 10
55. 55Battalion One Fire Protection45 permits · latest Oct 28
56. 56Jemico Llc Dba Renewal By Andersen Of Sf45 permits · latest Feb 6
57. 57Mastec Network Solutions Inc45 permits · latest Oct 26
58. 58Guzman Construction Group Inc.44 permits · latest Aug 21
59. 59Brighter Bay Builders Inc43 permits · latest Oct 29
60. 60Pribuss Engineering Inc42 permits · latest Feb 26
61. 61Singular Builders42 permits · latest Oct 28
62. 62C J Reed Construction Co40 permits · latest Sep 15
63. 63Advance Construction Technology Inc39 permits · latest Oct 2
64. 64De Brus Construction Inc39 permits · latest Aug 7
65. 65Metropolitan Electrical Construction39 permits · latest Sep 1
66. 66B-Side Inc.38 permits · latest Oct 1
67. 67Cahill Contractors Llc.38 permits · latest Aug 20
68. 68Metcon Ti, Inc38 permits · latest Sep 23
69. 69Recon 360 Llc38 permits · latest Oct 17
70. 70Reed Electric Company Inc Dba Century El38 permits · latest Sep 1
71. 71Truebeck Construction38 permits · latest Sep 15
72. 72Marchetti Group37 permits · latest Oct 22
73. 73Acco Engineered Systems Inc. Dba Acco En35 permits · latest Oct 26
74. 74Ad Art Inc.35 permits · latest Jul 2
75. 75West Coast Build Aka Fairway Constructio35 permits · latest Oct 9
76. 76Convergint Technologies Llc34 permits · latest Sep 29
77. 77Hon's Construction Inc.34 permits · latest Sep 29
78. 78Phase One Fire Life Safety Systems Inc34 permits · latest Aug 18
79. 79Thomas Swan Sign Co Inc34 permits · latest Sep 24
80. 80Urban West Construction Inc34 permits · latest Oct 26
81. 81Hp Build33 permits · latest Sep 22
82. 82Nibbi Bros Assoc Inc.33 permits · latest Oct 29
83. 83Star Waterproofing And Roofing33 permits · latest Sep 25
84. 84Amone Corp32 permits · latest Oct 6
85. 85Golden Gate Sign Company Inc.32 permits · latest Sep 15
86. 86Tom Lee Roofing Inc.32 permits · latest Jun 17
87. 87We Do Construction Inc.32 permits · latest Aug 20
88. 88Mcclure Electric Inc31 permits · latest Sep 21
89. 89Rf Fire Alarm Pro Inc31 permits · latest Jun 3
90. 90Saarman Construction,Ltd.30 permits · latest Oct 22
91. 91American Standard Roofing Inc29 permits · latest Jun 4
92. 92Dabl- Rr Builders Inc29 permits · latest Oct 9
93. 93G T M Works Llc Dba Greentree Maint29 permits · latest Sep 28
94. 94Andrew Chekene Enterprises/ Dba Ac Enter28 permits · latest Oct 6
95. 95General Express Construction Dba Roof Ex28 permits · latest Jun 26
96. 96Discount Signs & Neon Inc27 permits · latest Oct 8
97. 97Nelson T Lewis Const Co Inc.27 permits · latest Sep 10
98. 98Pineda Construction Inc27 permits · latest Oct 8
99. 99Turner Construction Co27 permits · latest Oct 9
100. 100Cookline Construction Inc26 permits · latest Sep 21

Data through October 28, 2026.