The 25 contractors pulling the most building permits in Upland - Development Services, ranked by PermitStack's activity score — built from 15,072 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | Kb Home Coastal Inc | 290 | 99 | addition, demolition, electrical | Dec 2025 |
| 2 | LENNAR HOMES OF CALIF | 273 | 68 | fence, interior_remodel, new_construction | Apr 2024 |
| 3 | Sunrun Installation Services, Inc | 173 | 100 | addition, battery, electrical | Jul 2026 |
| 4 | T&G Roofing Company | 172 | 90 | electrical, roofing, solar | Jul 2026 |
| 5 | LENNAR HOMES | 134 | 100 | addition, demolition, electrical | Jan 2024 |
| 6 | Vivint Solar Development, LLC | 128 | 97 | roofing, solar | Oct 2025 |
| 7 | HOME DEPOT | 96 | 100 | addition, battery, demolition | Jun 2026 |
| 8 | LA ROCQUE BETTER ROOFS INC | 70 | 93 | addition, interior_remodel, renovation | Jul 2026 |
| 9 | FAST WATER HEATER COMPANY | 56 | 100 | electrical, hvac, interior_remodel | Jun 2026 |
| 10 | SERVICE CHAMPIONS | 56 | 100 | addition, electrical, hvac | Jul 2026 |
| 11 | V3 Electric, Inc | 54 | 100 | battery, electrical, mechanical | Jun 2026 |
| 12 | RC HOMES INC | 52 | 74 | electrical, grading, interior_remodel | Jan 2023 |
| 13 | SUNPOWER CORPORATION SYSTEMS | 46 | 99 | addition, battery, electrical | Mar 2024 |
| 14 | TESLA INC | 42 | 100 | addition, battery, electrical | Jul 2026 |
| 15 | SunPower Corpoation Systems | 42 | 44 | interior_remodel, solar | Jun 2022 |
| 16 | RENEWAL BY ANDERSEN LLC | 40 | 100 | addition, demolition, electrical | Jul 2026 |
| 17 | Tim Orr Enterprises | 40 | 70 | interior_remodel, roofing | Apr 2026 |
| 18 | Sunrun Inc | 37 | 100 | addition, battery, electrical | Feb 2025 |
| 19 | BENCHMARK COMMUNITIES, LLC | 37 | 98 | addition, demolition, electrical | Jan 2025 |
| 20 | Marvista Construction | 36 | 82 | addition, demolition, electrical | Jan 2025 |
| 21 | Master Roofing Solutions, LLC | 35 | 93 | hvac, roofing, solar | Jul 2026 |
| 22 | COMPETITION ROOFING | 35 | 77 | grading, roofing, solar | Jul 2026 |
| 23 | Current Home Inc | 33 | 99 | battery, electrical, roofing | May 2026 |
| 24 | GORDON PERRY ROOFING A PARTNERSHIP | 32 | 43 | roofing | Jun 2026 |
| 25 | Energy Service Partners, Inc. | 31 | 100 | battery, electrical, hvac | Dec 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 Upland - Development Services.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CA&sort=score