HomeBostonCommercial Alteration

Every contractor winning Commercial Alteration in Boston.

$36.4B in reliable permit value across 61,090 filings — ranked by who’s pulling them, what they’re worth, and how fast they’re moving.

refreshed Jul 2, 2026 · classified, not scraped

Contractors winning Commercial Alteration in Boston

Ranked by permit volume · 61,090 filings
#ContractorPermitsReliable value90d
1Wise Construction188≈$273M+150%
2Siena Construction Corporation162≈$176M-67%
3The Richmond Group82≈$215M-25%
4PIDC Construction69≈$167M0%
5Berkeley Building Company67≈$28.3Mnew
6Gloucester Builders66≈$16.7M-100%
7Commodore Builders61≈$189M-100%
The ranked list continues — reliable values and contacts for all 128 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
  • Nightly alerts when a new filing lands
  • CRM-ready export — enriched + parcel-joined
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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 →

Get the full Commercial Alteration target list for Boston.

Every ranked contractor, recent projects, and nightly alerts — scoped to your segment and metro.

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Other segments in Boston
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FAQ

Frequently asked about commercial alteration permits in Boston

How many commercial alteration permits are pulled in Boston each year?
61,090 commercial alteration permits are currently indexed for Boston. 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 Boston?
The grid above shows the most recent commercial alteration permits in Boston, 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 Boston refreshed?
Boston 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 Boston 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.