The 25 contractors pulling the most building permits in Seal Beach, ranked by PermitStack's activity score — built from 37,572 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | GREENWOOD HEATING & AIR INC | 1,703 | 75 | addition, electrical, hvac | Oct 2025 |
| 2 | LOS AL BUILDERS LLC | 840 | 74 | addition, demolition, electrical | Jul 2024 |
| 3 | OGAN CONSTRUCTION INC | 829 | 79 | addition, electrical, foundation | Oct 2025 |
| 4 | ALPINE HEATING & AIR CONDITIONING | 817 | 74 | electrical, hvac, mechanical | Jul 2024 |
| 5 | J C KRESS CONST. INC. | 484 | 69 | addition, demolition, electrical | Feb 2024 |
| 6 | Stevenson Construction | 469 | 84 | addition, electrical, foundation | Feb 2011 |
| 7 | ROOFING STANDARDS INC | 428 | 99 | addition, hvac, interior_remodel | Aug 2026 |
| 8 | MP CONSTRUCTION INC | 319 | 94 | addition, demolition, electrical | Nov 2024 |
| 9 | Dicksons, Inc | 291 | 48 | addition, electrical, hvac | Feb 2012 |
| 10 | HADI CONSTRUCTION | 271 | 67 | addition, electrical, hvac | Jul 2024 |
| 11 | John Nelson Plumbing | 200 | 50 | plumbing | Jan 2019 |
| 12 | Mike Killeen Quality Roofing Company | 176 | 74 | addition, roofing | Jun 2026 |
| 13 | LW DECOR, INC. | 165 | 69 | addition, demolition, electrical | Jan 2026 |
| 14 | NATIONWIDE PAINTING CONCEPT INC | 165 | 50 | addition, demolition, electrical | Nov 2020 |
| 15 | ALPHA MASTER BUILDERS | 157 | 53 | addition, demolition, electrical | Apr 2022 |
| 16 | Marco Construction | 155 | 78 | addition, electrical, hvac | Jan 2026 |
| 17 | J C Kress Construction, Inc | 147 | 72 | addition, electrical, hvac | May 2026 |
| 18 | RUBEN PENA /DBA PENA CONSTRUCTION | 141 | 49 | addition, electrical, hvac | Apr 2015 |
| 19 | GREENWOOD HEATING & AIR CONDITIONING | 141 | 43 | electrical, hvac, mechanical | Apr 2010 |
| 20 | John Mamuscia Construction | 135 | 63 | addition, demolition, electrical | Oct 2024 |
| 21 | SERVICE CHAMPIONS | 132 | 100 | addition, electrical, ev_charger | May 2025 |
| 22 | GREENWOOD HEATING AND AIR | 121 | 45 | addition, hvac, mechanical | Jan 2017 |
| 23 | SEAPORT SASH & DOOR INC. | 119 | 59 | addition, electrical, hvac | Jun 2024 |
| 24 | BRUNO H. ALVAREZ GENEARL CONTRACTOR | 107 | 65 | addition, demolition, electrical | Aug 2025 |
| 25 | COSCO FIRE PROTECTION INC | 103 | 100 | addition, battery, demolition | Mar 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 Seal Beach.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CA&sort=score