HomeBostonMultifamily Alteration

Every contractor winning Multifamily Alteration in Boston.

$681M in reliable permit value across 3,170 filings — ranked by who’s pulling them, what they’re worth, and how fast they’re moving.

refreshed Jun 26, 2026 · classified, not scraped

Contractors winning Multifamily Alteration in Boston

Ranked by permit volume · 3,170 filings
#ContractorPermitsReliable value90d
1Romain Strecker89≈$491K
2Akelius79≈$10.3Mnew
3HomeWorks Energy46≈$240K
4Neeeco39≈$350K-50%
5Renewal by Andersen35≈$995Knew
6Fisher Windows35≈$624K0%
7NEWPRO29≈$524K
The ranked list continues — reliable values and contacts for all 55 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.

90-day movers

9 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
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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 Multifamily 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 Multifamily Alteration target list for Boston.

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FAQ

Frequently asked about multifamily alteration permits in Boston

How many multifamily alteration permits are pulled in Boston each year?
3,170 multifamily 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 multifamily alteration permits in Boston?
The grid above shows the most recent multifamily 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 multifamily 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 multifamily 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 multifamily alteration permit filings.