The 25 contractors pulling the most building permits in Gilroy, ranked by PermitStack's activity score — built from 44,914 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | LENNAR HOMES OF CALIFORNIA INC | 943 | 100 | addition, battery, demolition | Nov 2025 |
| 2 | Vivint Solar Developer, LLC. | 892 | 97 | addition, battery, electrical | Oct 2021 |
| 3 | Sunrun Installation Services, Inc | 876 | 100 | addition, battery, electrical | Aug 2026 |
| 4 | ERNIE'S PLUMBING & REPAIR SERVICE | 810 | 67 | fire_alarm, foundation, hvac | Aug 2023 |
| 5 | SUNPOWER CORPORATION SYSTEMS | 793 | 100 | addition, battery, demolition | Jan 2025 |
| 6 | KB Home South Bay | 780 | 80 | addition, electrical, fence | Dec 2024 |
| 7 | MERITAGE HOMES OF CALIFORNIA INC | 645 | 100 | addition, demolition, electrical | Feb 2019 |
| 8 | JIMMY SHRULL ROOFING INC | 449 | 61 | renovation, roofing, solar | Aug 2022 |
| 9 | SHAPELL INDUSTRIES INC | 411 | 63 | addition, electrical, fence | May 2013 |
| 10 | THORPE DESIGN INC | 355 | 100 | addition, demolition, fire_alarm | Nov 2025 |
| 11 | DeNova Homes Inc | 293 | 86 | addition, electrical, fence | Aug 2017 |
| 12 | DR HORTON BAY INC | 270 | 69 | electrical, fire_alarm, grading | Sep 2024 |
| 13 | VICTORY FIRE PROTECTION INC | 252 | 85 | addition, electrical, fire_alarm | May 2020 |
| 14 | RENEWAL BY ANDERSEN LLC | 232 | 100 | addition, demolition, electrical | Aug 2026 |
| 15 | CANTRELL COMPANY INC. | 200 | 48 | fire_alarm | Jan 2008 |
| 16 | Bright Planet Solar | 178 | 99 | addition, battery, electrical | Feb 2026 |
| 17 | HOME DEPOT USA INC | 165 | 100 | addition, demolition, electrical | Jun 2026 |
| 18 | ASCO SERVICE, INC. | 154 | 70 | electrical, hvac, interior_remodel | Apr 2026 |
| 19 | BROOKFIELD NORCAL BUILDERS,INC | 153 | 54 | addition, fire_alarm, foundation | Jan 2017 |
| 20 | RESIDENTIAL WALL SYSTEMS | 149 | 56 | fence, interior_remodel, new_construction | Sep 2022 |
| 21 | O'NEAL ROOFING, INC. | 144 | 77 | renovation, roofing, solar | Jul 2026 |
| 22 | SERVICE CHAMPIONS | 139 | 100 | addition, electrical, ev_charger | Jul 2026 |
| 23 | ARCADIA HOMES LLC | 129 | 78 | demolition, fence, fire_alarm | Jun 2010 |
| 24 | THERMAL MECHANICAL | 126 | 78 | electrical, hvac, interior_remodel | Jun 2026 |
| 25 | FIRE SPRINKLER SYSTEMS INC | 113 | 99 | addition, fire_alarm, interior_remodel | Feb 2024 |
"Score" is a 0–100 activity index from permit volume, recency, project value, and geographic reach. "Permits" counts building permits this contractor pulled in Gilroy.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CA&sort=score