The 25 contractors pulling the most building permits in Pasadena (CA), ranked by PermitStack's activity score — built from 412,451 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | Ashwood Construction Inc | 481 | 85 | addition, demolition, electrical | Nov 2003 |
| 2 | ALAMITOS BUILDING INC | 171 | 50 | electrical, fence, grading | Sep 1997 |
| 3 | Massie Roofing Co | 142 | 74 | roofing | Aug 2004 |
| 4 | A-1 ROOFING SERVICE INCORPORAT | 126 | 45 | roofing | Nov 1993 |
| 5 | ARROYO PLUMBING INC | 111 | 77 | electrical, fence, fire_alarm | Aug 2026 |
| 6 | ACTION CONTRACTORS INC | 106 | 85 | addition, electrical, hvac | Jul 2004 |
| 7 | SEISMIC SAFETY INC | 91 | 88 | addition, foundation, interior_remodel | Sep 2026 |
| 8 | LA CANADA AIR CONDITIONING INC | 85 | 54 | electrical, hvac, interior_remodel | Jul 2004 |
| 9 | NUMBER 1 STATE PLUMBING | 82 | 37 | plumbing | Jul 2004 |
| 10 | GEORGE HANEY & SON INC | 81 | 49 | electrical, hvac, mechanical | Jul 2004 |
| 11 | ADVANCE FIRE PROTECTION CO INC | 71 | 92 | addition, demolition, electrical | Jul 2026 |
| 12 | MUIR-CHASE PLUMBING CO INC | 71 | 90 | demolition, electrical, hvac | Sep 2026 |
| 13 | AMC AJEMIAN MECHANICAL COMPANY | 70 | 22 | electrical, hvac, mechanical | Jul 2004 |
| 14 | RIVAS ROOFING INC | 67 | 79 | roofing | Oct 2026 |
| 15 | A J CONTRACTING OF CALIFORNIA | 65 | 44 | electrical, interior_remodel, mechanical | Jun 1992 |
| 16 | Talbott Electric | 65 | 36 | electrical, interior_remodel | Jul 2004 |
| 17 | CAMPAGNA ROOFING | 64 | 74 | roofing | Jun 2026 |
| 18 | HENRIK PLUMBING COMPANY | 63 | 22 | plumbing | Jul 2004 |
| 19 | Johnston & Associates, Inc. | 57 | 47 | demolition, electrical, fire_alarm | May 2004 |
| 20 | Arnola Plumbing Inc | 56 | 37 | plumbing | Jul 2004 |
| 21 | A-1 All American Roofing Co | 55 | 92 | renovation, roofing, sign | Aug 2004 |
| 22 | REGENCY FIRE PROTECTION INC | 55 | 78 | addition, electrical, fire_alarm | Aug 2004 |
| 23 | MASTERSERV INC | 54 | 67 | electrical, hvac, interior_remodel | Jul 2008 |
| 24 | GENERAL HEATING AND AIR CONDITIONIN | 53 | 21 | electrical, hvac, mechanical | Aug 2004 |
| 25 | CORPORATE CONTRACTORS INC | 52 | 77 | addition, demolition, electrical | Aug 2004 |
"Score" is a 0–100 activity index from permit volume, recency, project value, and geographic reach. "Permits" counts building permits this contractor pulled in Pasadena (CA).
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CA&sort=score