Contractor Profile

I. Mass + Sons

I. Mass + Sons is a specialist multifamily alteration contractor in New York City — all 23 of its segment-eligible permits fall in multifamily alteration. Its permit record in New York City spans 1990–1998.

First permit: Jul 26, 1990 (13,232d ago)Latest permit: Mar 18, 1998 (10,440d ago)
The sales record
Market
New York City
Active
1990–1998 · 8 yrs
Licence IDs on their permits
1
Reliable value
—
Coverage
—
Reliable filings
—
Rank in New York City
#14,466
Permits (all-time, all segments)
39
Filings 90d
0
Filings 30d
0
Latest permit
Mar 18, 1998
Typical project sizeNot enough valued permits to summarize.
Where they work

Primarily Multifamily Alteration — 100% of 23 segment-classified permits

Ranked #8,517 in the New York City Multifamily Alteration leaderboard →
Firmographics
License & registration IDs on file
  • 0004797

As named in the permit records — identifiers we surface, not verified state licensure.

Direct contactNot in our data — we don’t fabricate firmographics.
What we won’t fabricate

I. Mass + Sons has 39 permits, but too few carry a value we can stand behind — so we publish — for reliable value, never a guess. They still rank by volume; the dollar figure stays honest.

—Below our reliability threshold — too few filings carry a value we stand behind
Service area

Typical service area ~3 mi in New York City

The p90 footprint of where I. Mass + Sons has pulled permits in New York City — drawn from all 39 of their indexed permits. It reflects detected permit activity, not a guaranteed service-area claim.

  • NYC39
Find Multifamily Alteration contractors near your branchEnter your address — see who’s pulling these permits in your radius.
Recent permits

Showing 20 of 23 permits by I. Mass + Sons in the indexed window · most recent first

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4 East 95 Street, Manhattan, NY 10128
Multifamily Alteration
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4 East 95 Street, Manhattan, NY 10128
Multifamily Alteration
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4 East 95 Street, Manhattan, NY 10128
Multifamily Alteration
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40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
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40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
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40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
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40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
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40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
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40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
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239 Central Park West, Manhattan, NY 10024
Multifamily Alteration
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239 Central Park West, Manhattan, NY 10024
Multifamily Alteration
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333 East 30 Street, Manhattan, NY 10016
Multifamily Alteration
Residential
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1107 5 Avenue, Manhattan, NY 10128
Multifamily Alteration
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880 Fifth Avenue, Manhattan, NY 10021
Multifamily Alteration
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226 East 73 Street, Manhattan, NY 10021
Multifamily Alteration
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226 East 73 Street, Manhattan, NY 10021
Multifamily Alteration
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226 East 73 Street, Manhattan, NY 10021
Multifamily Alteration
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1107 5 Avenue, Manhattan, NY 10128
Multifamily Alteration
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1107 5 Avenue, Manhattan, NY 10128
Multifamily Alteration
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1107 5 Avenue, Manhattan, NY 10128
Multifamily Alteration
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Sites I. Mass + Sons returns to6 in New York City

Addresses where I. Mass + Sons has pulled repeat permits and the site itself has a deep permit history (25+ permits, all contractors). Each links to that parcel’s full record.

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