Commercial Alteration permits in San Francisco
≈$29.5B in reliable permit value across 244,078 commercial alteration filings in San Francisco. The contractor leaderboard for this segment is rolling out.
refreshed Aug 10, 2026 · classified, not scraped
Contractors winning Commercial Alteration in San Francisco
Ranked by permit volume · 244,078 filingsThe contractor leaderboard for Commercial Alteration in San Francisco is rolling out — 244,078 classified filings are already indexed. Browse them in the Market Explorer →
90-day movers
Momentum not yet available for this segment.
What’s in the full list
- Every contractor ranked by reliable value
- Recent projects + permit-level detail per contractor
- A daily email 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 San Francisco.
Every ranked contractor, recent projects, and a daily email when new permits land — scoped to your segment and metro.
- Residential Alteration559,457
- Multifamily Alteration288,292
- Commercial Alteration244,078
- Residential Alteration559,457
- Multifamily Alteration288,292
Frequently asked about commercial alteration permits in San Francisco
- How many commercial alteration permits are pulled in San Francisco each year?
- 244,078 commercial alteration permits are currently indexed for San Francisco. 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 San Francisco?
- The board above ranks the contractors winning commercial alteration permits in San Francisco by volume and reliable value. To browse the underlying permit filings themselves — filter by cohort, by date range, by contractor — use the PermitCore API or the Market Explorer.
- How is the commercial alteration data in San Francisco refreshed?
- PermitCore rebuilds the San Francisco index nightly. The underlying municipal source publishes on its own cadence, which varies by jurisdiction, so each page stamps its own freshness (the "as of" date) rather than promising a fixed interval — and a stale source is marked as such. 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 San Francisco commercial alteration permits?
- Yes — the free tier includes 5,000 exports / month (CSV or Parquet); one bulk export counts as 1 export regardless of row count. Pro removes the cap with unlimited exports and full-data browse across all jurisdictions.