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Brennan Marine INC

818 Bainbridge St, La Crosse, WI 54603

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 2 SOURCES

Operating signal within 12 months from two or more independent sources.

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Homepage of Brennan Marine INC
Their homepage, crawled JUL 2026

What they make

Ship Building and Repairing336611
  • dredging
  • marine construction
  • amphibious
  • side scan sonar
  • mobile water treatment
  • material transport
  • harbor management
  • dam construction
  • underwater inspections

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Where it is

43.83440, -91.26228 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS

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Every listed plant in La Crosse County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 9 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

  • The company’s own websiteOPERATING
    first seen JUL 2026 · last seen OCT 2026
  • SAM.gov entity registrationOPERATING
    Record R5LQV73CELZ3 · first seen JAN 2026 · last seen OCT 2026

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name
SAM.gov: BRENNAN MARINE INC · OCT 2026
Street address
SAM.gov: 818 BAINBRIDGE ST · OCT 2026
City
SAM.gov: LA CROSSE · OCT 2026
State
SAM.gov: WI · OCT 2026
Coordinates
Census geocoder: 43.834402776298,-91.262275871032 · JUL 2026
Website
Company website: http://www.brennanmarine.com · JUL 2026 · ON THIS PAGE
SAM.gov: http://www.brennanmarine.com · OCT 2026 · ON THIS PAGE
CAGE code
SAM.gov: 1F2Z6 · OCT 2026
SAM registration expires
SAM.gov: 2027-10-01 · OCT 2026
State business registrationSOURCES DISAGREE
AK Corporations: J.F. BRENNAN COMPANY INCORPORATED, registered with the Alaska Division of Corporations, Business and Professional Licensing; Corporation formed in Wisconsin; registered 2021-05-14; active · MAY 2021
DC Corporations: J.F. Brennan Company, Inc., registered with the District of Columbia Corporations Division; Corporation; registered 2015-12-16; active, annual report filed 2026-03-18 · MAR 2026
Sunbiz: J.F. BRENNAN COMPANY, INC., registered with the Florida Department of State, Division of Corporations; Corporation formed in Wisconsin; registered 2003-04-07; active, annual report filed 2026-04-15 · APR 2026
IA SOS: BRENNAN MARINE, INC., registered with the Iowa Secretary of State; registered 1992-03-16; active · MAR 1992
OR SOS: J.F. BRENNAN COMPANY INC., registered with the Oregon Secretary of State, Corporation Division; Corporation formed in Wisconsin; registered 2022-02-28; active · FEB 2022
TX Comptroller: J.F. BRENNAN COMPANY INC, registered with the Texas Comptroller of Public Accounts; Corporation; registered 2015-12-11; active · DEC 2015
VA SCC: J.F. Brennan Company, Inc., registered with the Virginia State Corporation Commission; Corporation formed in Wisconsin; registered 2016-03-03; active · MAR 2016

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