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Rosenwach Tank Co.,llc

General contractor · New York City
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rosenwachtank.com(718) 729-4900LinkedIn4025 Crescent St, Long Island City, NY 11101
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Rosenwach Tank Co.,llc is a general contractor with 8 tracked New York City building-permit projects on record, with the latest filing in that record 303 days ago. Its filings (Nov 2024 to Nov 2025) are concentrated in Manhattan and Brooklyn, 63% residential. A typical project in the record declares $50K–$235K. If you work at Rosenwach Tank Co.,llc, claim this page to add a description.

Filed 303 days ago
#1,964
by NYC filing activity
among NYC general contractors, 90 days to Sep 4, 2026
8
projects
from 11 filings
0/16
active weeks
weeks with a filing (16 weeks to Sep 4, 2026)
Portfolio · $399/yearFree during launch
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Permit-backed projects · PermitPipeline’s independent record
No project records yet for Rosenwach Tank Co.,llc.
Neighborhood, filing date, scope and declared value are shown here. Exact addresses, owner names and mailing addresses, and full filing histories are part of the paid product.
Typical project$50K–$235K$100K typical2.0× the NYC median ($50K)Last filed303 days agoManhattan · Nov 5, 2025Last 90 days0 active0 newly filed

Filing activity · 16 weeks to Sep 4, 2026

MAY
JUN
JUL
AUG

Project mix · by use

Residential63%
Other37%

Geography · by borough

Manhattan88%
Brooklyn12%

Shared-project connections

#FirmPrimary roleSharedRelative
1As Engineering Services PCEngineering1
2Cosentini AssociatesEngineering1
3Landmark Facilities Group, IncEngineering1
None on shared filings.

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Owner and developer names, and the projects behind each connection, are part of the Leads product.

Firms that appear on the same New York City permit filings. Association on shared filings, not a proven working relationship.
State licenseNot connectedContractor registration is held by the NYC DOB licensing unit. That register is not part of the New York City permit record, and we do not yet read it.
Repeat working relationships0 firmsFirms this one appears with on more than one project, out of 3 in total.
Permit speed24 days
This firm24d
NYC median19d
5 days longer than the NYC median
based on 10 firm filings vs 98,525 NYC filings

Frequently asked questions

How many NYC projects does Rosenwach Tank Co.,llc appear on?▾
PermitPipeline tracks 8 New York City building-permit projects for Rosenwach Tank Co.,llc (Nov 2024 to Nov 2025). 0 had filing activity in the last 90 days.
Does Rosenwach Tank Co.,llc work on commercial or residential projects?▾
Across its tracked New York City filings, 0% of Rosenwach Tank Co.,llc's projects are commercial and 63% are residential (multifamily, small residential, or single-family). Based on permit records, not self-reported.
Where in New York City does Rosenwach Tank Co.,llc work?▾
88% of Rosenwach Tank Co.,llc's tracked New York City projects are in Manhattan.
What is a typical Rosenwach Tank Co.,llc project worth?▾
The median declared value across the 8 New York City projects Rosenwach Tank Co.,llc has on record that state one is $100K (declared value on the permit filing, not contract value).
Which firms appear most often on the same filings as Rosenwach Tank Co.,llc?▾
Rosenwach Tank Co.,llc most frequently appears on the same New York City permit filings as As Engineering Services PC, Cosentini Associates, Landmark Facilities Group, Inc. Appearing together indicates association on shared filings, not a proven working relationship.
Is Rosenwach Tank Co.,llc a general contractor?▾
Rosenwach Tank Co.,llc is listed as a general contractor on its New York City permit filings. Roles on this profile are derived from the role each firm holds on public NYC DOB filings.
Public aggregate — full project records are part of the paid leads product. Ranking, filing activity, project mix and geography were last recomputed Sep 4, 2026. Project counts, declared values and filing dates are read live from NYC DOB filings.
How far back does this record go?▾
This page covers the recent permit record, not the firm’s full history. A firm’s earliest filing here means it was already working when our record opens, not that it started then.
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Sources

New York City Department of Buildings permit filings.

Record source

Read directly from NYC DOB filings.

Photography

None are shown until the firm supplies them.

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