HomeNew York CityCommercial Alteration

Every contractor winning Commercial Alteration in New York City.

Classification: not yet measured

$108B in reliable permit value across 780,726 filings, all time — ranked by who’s pulling them, what they’re worth, and how fast they’re moving.

refreshed Aug 26, 2026 · classified, not scraped

Classification scopeClassification precision for Commercial Alteration in New York City has not yet been measured against our ≥99% certification bar. The permits are shown; treat the cohort boundary as provisional until certification.
Classification coverageOf 7,694,673 permit records we hold for New York City, 5,714,617 (74.3%) carry the work markers our cohort rules need — the rest are published without a residential/commercial signal we can classify on. Of those, 5,119,463 (89.6%) are placed in a cohort. Certification measures whether that placement is right — not how much of the corpus reaches it.
Find Commercial Alteration contractors near your branchEnter your address — see who’s pulling these permits in your radius.

Contractors winning Commercial Alteration in New York City

Ranked by permit volume · 780,726 filings, all time
#ContractorCommercial Alteration permitsReliable value90d
1Structure Tone INC1,595≈$5.0B-10%
2Jrm Construction Mgmt LLC1,076≈$2.9B-12%
3Jt Magen + CO INC1,014≈$3.1B-12%
4Jack Piccini, INC891≈$22.2M
5Clune Construction CO LP745≈$776M+83%
6Turner Construction Compa724≈$4.3B-2%
7James E Fitzgerald INC494≈$635M-68%
The ranked list continues — reliable values and contacts for all 10,649 contractors in this segment.See the full leaderboard →

Contractors with too few reliable filings to stand behind a value still rank by volume — their value shows , never a fabricated number.

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
See your territory →

Free to explore — no card.

Why this list is real

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 →
Alert me when Commercial Alteration momentum crosses a threshold.Single-window signal (last 90 days vs the prior 90) — at most once a week, no account.
+%

Email when Commercial Alteration momentum in New York City crosses +25%.

The depth behind this segment

Every commercial alteration filing in New York City arrives roof-sized, HVAC-sized, and owner-matched.

Not a scrape — each permit is parcel-joined and building-modeled. Typical values across this segment’s sampled filings:

Typical roof area28,362 sq ftmedian · 25 of 25 sampled (100%) carry a roof estimate
Typical HVAC load~116 tonsmedian · 25 of 25 sampled (100%) carry an HVAC estimate
Fully-enriched filings in this segment
  • 225 Liberty Street, Manhattan, NY321,289 sq ft roof~5,040 tonsBROOKFIELD PROPERTIES
  • 111 8th Avenue, Manhattan, NY306,282 sq ft roof~4,805 tonsTACONIC MANAGEMENT COMPANY LLC
  • 1271 Sixth Avenue, Manhattan, NY278,078 sq ft roof~4,362 tonsROCKEFELLER GROUP

Roof + HVAC estimates are building-modeled and shown only where the coverage is real — segments and metros without the underlying parcel signal show , never a fabricated number.

Get the full Commercial Alteration target list for New York City.

Every ranked contractor, recent projects, and a daily email when new permits land — scoped to your segment and metro.

See your territory →Pro — $89/mo · self-serve
Keep tabs on your New York City territory — a weekly Commercial Alteration digest.No account needed — new Commercial Alteration permits across New York City, once a day when something new lands. Unsubscribe anytime.
Market chartspoint-in-time snapshot
Typical project size · commercial alteration · New York City$32Kmiddle 50% · across 415,254 valued permits
Aggregate, point-in-time — free to view. Export the underlying numbers with Pro.
Other segments in New York City
Commercial Alteration in other metros
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FAQ

Frequently asked about commercial alteration permits in New York City

How many commercial alteration permits are pulled in New York City each year?
780,726 commercial alteration permits are currently indexed for New York City. 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 New York City?
The board above ranks the contractors winning commercial alteration permits in New York City 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 New York City refreshed?
PermitCore rebuilds the New York City 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 New York City 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.