Contractors winning Commercial Alteration in Seattle
Ranked by permit volume · 41,525 filings| # | Contractor | Permits | Reliable value | 90d |
|---|---|---|---|---|
| 1 | U OF W BUILDING PERMIT | 400 | ≈$902M | — |
| 2 | AMAZON.COM | 268 | ≈$169M | — |
| 3 | SEATTLE SCHOOL DISTRICT (A&S) | 234 | ≈$433M | — |
| 4 | BLANKET: BANK OF AMERICA TOWER | 216 | — | — |
| 5 | BURGESS DESIGN, INC | 186 | ≈$20.7M | — |
| 6 | CITY OF SEA F&FD | 177 | ≈$103M | — |
| 7 | BLANKET: TWO UNION SQUARE | 163 | — | — |
Contractors with too few reliable filings to stand behind a value still rank by volume — their value shows —, never a fabricated number.
90-day movers
Momentum not yet available for this segment.
12 more — too few recent filings to score.
What’s in the full list
- Every contractor ranked by reliable value
- Recent projects + permit-level detail per contractor
- Nightly alerts when a new filing lands
- CRM-ready export — enriched + parcel-joined
Free to explore — no card.
These contractors are ranked from classified permits, not keyword scrapes. We read each permit’s work-type, scope, and occupancy fields to place it in Commercial Alteration — so a filing that looks like a generic alteration lands in the right segment, and the ranking reflects real work. When the fields don’t support a confident call we mark it Unclassified — we never force a wrong segment to pad a contractor’s count.
How we classify →Get the full Commercial Alteration target list for Seattle.
Every ranked contractor, recent projects, and nightly alerts — scoped to your segment and metro.
Frequently asked about commercial alteration permits in Seattle
- How many commercial alteration permits are pulled in Seattle each year?
- 41,525 commercial alteration permits are currently indexed for Seattle. Volume varies year over year; PermitCore tracks both historical totals and current rolling-window activity.
- Where can I see the latest commercial alteration permits in Seattle?
- The grid above shows the most recent commercial alteration permits in Seattle, paginated 25 per page. For programmatic access — filter by cohort, by date range, by contractor — use the PermitCore API or download via the Market Explorer.
- How is the commercial alteration data in Seattle refreshed?
- Seattle permit data is refreshed daily from the city's open-data portal. Segment classification is applied automatically by PermitCore's classification engine; field-level data-quality flags surface inline so you can filter for clean rows.
- Can I export Seattle commercial alteration permits?
- Yes — the free tier includes 5K rows of CSV export per month. Paid tiers expand to Parquet export, 50K-2M rows, and webhook delivery on new commercial alteration permit filings.