The 25 contractors pulling the most building permits in Gilroy, ranked by PermitStack's activity score — built from 44,177 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | LENNAR HOMES OF CALIFORNIA INC | 622 | 100 | addition, battery, demolition | Jan 2025 |
| 2 | KB Home South Bay | 455 | 76 | addition, electrical, fence | Dec 2024 |
| 3 | SUNPOWER CORPORATION SYSTEMS | 331 | 99 | battery, electrical, interior_remodel | Jan 2025 |
| 4 | ERNIE'S PLUMBING & REPAIR SERVICE | 196 | 56 | fire_alarm, hvac, plumbing | Mar 2023 |
| 5 | Vivint Solar Developer, LLC. | 184 | 99 | addition, battery, electrical | Oct 2021 |
| 6 | SHAPELL INDUSTRIES INC | 171 | 52 | addition, fence, fire_alarm | May 2013 |
| 7 | Sunrun Installation Services, Inc | 162 | 100 | addition, battery, electrical | Jun 2026 |
| 8 | RESIDENTIAL WALL SYSTEMS | 143 | 57 | fence, interior_remodel, plumbing | Sep 2022 |
| 9 | JIMMY SHRULL ROOFING INC | 125 | 52 | renovation, roofing | Jul 2022 |
| 10 | MERITAGE HOMES OF CALIFORNIA INC | 107 | 92 | addition, electrical, fire_alarm | Feb 2019 |
| 11 | THORPE DESIGN INC | 84 | 71 | fire_alarm, new_construction, solar | Oct 2025 |
| 12 | DR HORTON BAY INC | 84 | 60 | new_construction | Dec 2023 |
| 13 | Tri Pointe Homes | 69 | 93 | battery, demolition, electrical | Nov 2024 |
| 14 | RENEWAL BY ANDERSEN LLC | 64 | 100 | addition, electrical, interior_remodel | Jun 2026 |
| 15 | DeNova Homes Inc | 54 | 64 | fence, fire_alarm, grading | Aug 2017 |
| 16 | ARCADIA HOMES LLC | 53 | 71 | fire_alarm, interior_remodel, new_construction | Jun 2010 |
| 17 | SunPower Corporation | 52 | 99 | electrical, roofing, solar | Oct 2024 |
| 18 | VICTORY FIRE PROTECTION INC | 46 | 70 | fire_alarm, interior_remodel, new_construction | Nov 2019 |
| 19 | ASCO SERVICE, INC. | 45 | 56 | hvac, interior_remodel, renovation | Nov 2024 |
| 20 | THERMAL MECHANICAL | 38 | 66 | hvac, interior_remodel, renovation | Jun 2026 |
| 21 | Bright Planet Solar | 35 | 100 | battery, electrical, interior_remodel | Feb 2026 |
| 22 | HOME DEPOT USA INC | 34 | 98 | fence, hvac, interior_remodel | Dec 2025 |
| 23 | SERVICE CHAMPIONS | 32 | 95 | addition, electrical, hvac | Jun 2026 |
| 24 | Bellows Plumbing Heating and Air | 30 | 64 | electrical, ev_charger, hvac | Jun 2026 |
| 25 | BENCHMARK COMMUNITIES, LLC | 29 | 83 | addition, fence, interior_remodel | Sep 2015 |
"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