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 (13,186d ago)Latest permit: Mar 18, 1998 (10,394d 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
#14,465
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 #8,486 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
4 East 95 Street, Manhattan, NY 10128
Multifamily Alteration
4 East 95 Street, Manhattan, NY 10128
Multifamily Alteration
40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
40 East 94 Street, Manhattan, NY 10128
Multifamily Alteration
239 Central Park West, Manhattan, NY 10024
Multifamily Alteration
239 Central Park West, Manhattan, NY 10024
Multifamily Alteration
333 East 30 Street, Manhattan, NY 10016
Multifamily Alteration
Residential
1107 5 Avenue, Manhattan, NY 10128
Multifamily Alteration
880 Fifth Avenue, Manhattan, NY 10021
Multifamily Alteration
226 East 73 Street, Manhattan, NY 10021
Multifamily Alteration
226 East 73 Street, Manhattan, NY 10021
Multifamily Alteration
226 East 73 Street, Manhattan, NY 10021
Multifamily Alteration
1107 5 Avenue, Manhattan, NY 10128
Multifamily Alteration
1107 5 Avenue, Manhattan, NY 10128
Multifamily Alteration
1107 5 Avenue, Manhattan, NY 10128
Multifamily Alteration
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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