The 25 contractors pulling the most building permits in Billings, ranked by PermitStack's activity score — built from 60,028 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | WHITE HEATING & AIR CONDITIONI | 5,299 | 57 | addition, hvac, interior_remodel | Jan 2026 |
| 2 | SPRAGUE CONSTRUCTION ROOFING DIVISION | 2,852 | 58 | interior_remodel, renovation, roofing | Mar 2026 |
| 3 | DONAHUE ROOFING & SIDING LLC | 1,417 | 58 | interior_remodel, new_construction, renovation | Mar 2026 |
| 4 | WEGNER ROOFING & SOLAR CORPORATION | 1,333 | 77 | addition, interior_remodel, new_construction | Mar 2026 |
| 5 | ASPEN CONTRACTING INC | 1,299 | 100 | addition, electrical, fence | Sep 2025 |
| 6 | SINGH CONTRACTING INC | 1,139 | 58 | interior_remodel, renovation, roofing | Mar 2026 |
| 7 | LYNNRICH INC. | 1,091 | 57 | addition, interior_remodel, renovation | Feb 2026 |
| 8 | C'S CONSTRUCTION OF BILLINGS | 844 | 57 | addition, interior_remodel, new_construction | Feb 2026 |
| 9 | KIRKNESS ROOFING INC | 813 | 50 | interior_remodel, renovation | Oct 2024 |
| 10 | RAMBUR CONSTRUCTION INC | 792 | 46 | addition, interior_remodel, renovation | Dec 2023 |
| 11 | Infinity Roofing & Siding, Inc. | 752 | 99 | addition, interior_remodel, renovation | Oct 2025 |
| 12 | AIR CONTROLS BILLINGS INC | 474 | 55 | demolition, electrical, hvac | Mar 2026 |
| 13 | ROCKY MOUNTAIN ROOFING | 460 | 82 | addition, fence, interior_remodel | Oct 2025 |
| 14 | Protech Mechanical | 456 | 62 | addition, electrical, hvac | Jul 2022 |
| 15 | JONES ROOFING INC | 454 | 95 | addition, interior_remodel, renovation | Oct 2025 |
| 16 | CORNERSTONE SIDING COMPANY | 444 | 32 | renovation | Jun 2015 |
| 17 | CORY SIMONS CONSTRUCTION | 423 | 51 | addition, interior_remodel, renovation | Oct 2025 |
| 18 | Yellowball Roofing & Solar | 411 | 75 | electrical, interior_remodel, new_construction | Mar 2026 |
| 19 | MJB TRADES INC. | 399 | 53 | interior_remodel, renovation | Mar 2026 |
| 20 | One Source Construction LLC | 388 | 78 | addition, electrical, interior_remodel | Jan 2026 |
| 21 | WIN-DOR INDUSTRIES, INC. | 386 | 53 | interior_remodel, renovation | Mar 2026 |
| 22 | GREEN POWER SYSTEMS INC | 376 | 74 | addition, electrical, interior_remodel | Mar 2026 |
| 23 | JRJ CONSTRUCTION INC | 330 | 81 | addition, fence, interior_remodel | Feb 2026 |
| 24 | MADSKY ROOFING & RESTORATION, LLC | 328 | 59 | new_construction, renovation, roofing | Apr 2015 |
| 25 | Pure Light Power | 287 | 71 | addition, electrical, interior_remodel | Mar 2025 |
"Score" is a 0–100 activity index from permit volume, recency, project value, and geographic reach. "Permits" counts building permits this contractor pulled in Billings.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=MT&sort=score