Verified Nov 2026
Electronics & Software
·
Galliano, Louisiana
·
Since 1948
GIS is a design, fabrication, and construction contractor headquartered in Galliano, Louisiana, and founded in 1948. It employs roughly 1,000 to 5,000 people and reports revenue in the $1 billion to $5 billion band, though that figure is an estimate. The company serves the automotive, electric-vehicle, construction, renewable-energy, and industrial-equipment sectors, with a long history in Gulf of Mexico oil and gas work. Recently, it secured a marine, environmental, and site engineering services contract from Argent LNG in July 2026.
GIS at a glance
Revenue
$1-5B
Est. band
Employees
1,000-5,000
Founded
1948
Headquarters
Galliano, Louisiana
Certifications
ISO 9001
Import activity
10
Industries
Automotive
Electric Vehicles
Construction
Renewable Energy
Industrial Equipment
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
10
Named foreign suppliers
4
Top origins
Hong Kong S.A.R. · China
Shared foreign counterparties do not establish that these companies buy from GIS.
What this tells a buyer
GIS announced a marine, environmental, and site engineering services contract with Argent LNG on July 7, 2026, according to a press release distributed through EIN Presswire.
GIS lists steel, aluminum, and valve products among its offerings and operates facilities in Galliano and Broussard, Louisiana, and holds ISO 9001 certification.
GIS is privately held and does not trade publicly, and the record does not list specific named customers.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
STABILITY SIGNALS
Established & active
78 years in operation (founded 1948).
Holds ISO 9001 certification(s) per public sources.
Overview
GIS is a design, fabrication, and construction contractor headquartered in Galliano, Louisiana, and founded in 1948. It employs roughly 1,000 to 5,000 people and reports revenue in the $1 billion to $5 billion band, though that figure is an estimate. The company serves the automotive, electric-vehicle, construction, renewable-energy, and industrial-equipment sectors, with a long history in Gulf of Mexico oil and gas work. Recently, it secured a marine, environmental, and site engineering services contract from Argent LNG in July 2026.
At a glance
Attribute | Detail |
|---|---|
Founded | 1948 |
Headquarters | Galliano, Louisiana |
Employees | 1,000-5,000 |
Revenue | $1-5B (estimated) |
Primary capability | Electronics & Software |
Certifications | ISO 9001 |
What GIS makes
GIS lists steel, aluminum, and valve products among its offerings and operates facilities in Galliano and Broussard, Louisiana, and holds ISO 9001 certification.
Products and capabilities described on the company's own site include Steel, Aluminum, Valve (source: gisy.com).
Certifications
GIS is associated with the following certifications in public sources. Confirm the certified scope for the specific plant producing your part:
ISO 9001 — gisy.com
Trade and customs footprint
GIS announced a marine, environmental, and site engineering services contract with Argent LNG on July 7, 2026, according to a press release distributed through EIN Presswire. US customs bill-of-lading records list 10 inbound shipments across 4 foreign suppliers, with top origins including Hong Kong S.A.R. · China.
Latest developments
2026-09-30 — GIS is proud to play a part in an exciting new project at The National WWII Museum in New Orleans. | GIS (linkedin.com)
2026-07-07 — Argent LNG Awards Marine, Environmental and Site Engineering Services Contract to GIS (einpresswire.com)
2026-05-18 — GIS is expanding what’s possible in industrial engineering and reality capture. | G.I.S. (linkedin.com)
2026-03-02 — GIS Launches New Steel And Supply Webpage – Grand Isle Shipyard (gisy.com)
2025-12-18 — GIS Engineering Acquires Engineering & Inspection Services – Grand Isle Shipyard (gisy.com)
2025-08-19 — New Name, Same Commitment: Introducing GIS Steel & Supply - Grand Isle Shipyard (gisy.com)
Facilities
GIS is headquartered in Galliano, Louisiana. Public sources also reference these locations:
Galliano, Louisiana — einpresswire.com
Broussard, LA — gisy.com
Company details
GIS is privately held and does not trade publicly, and the record does not list specific named customers. GIS was founded in 1948, has an estimated 1,000-5,000 employees, and is headquartered in Galliano, Louisiana. On the LightSource stability read it is rated "Established & active": 78 years in operation (founded 1948). Holds ISO 9001 certification(s) per public sources.
Frequently asked questions
What does GIS make?
GIS is a design, fabrication, and construction contractor headquartered in Galliano, Louisiana, and founded in 1948. It employs roughly 1,000 to 5,000 people and reports revenue in the $1 billion to $5 billion band, though that figure is an estimate. The company serves the automotive, electric-vehicle, construction, renewable-energy, and industrial-equipment sectors, with a long history in Gulf of Mexico oil and gas work. Recently, it secured a marine, environmental, and site engineering services contract from Argent LNG in July 2026.
Where is GIS headquartered?
GIS is headquartered in Galliano, Louisiana (18838 Highway 3235, Galliano, Louisiana, 70354).
When was GIS founded?
GIS was founded in 1948.
How big is GIS?
GIS has an estimated 1,000-5,000 employees, with revenue in the $1-5B range (estimated).
What certifications does GIS hold?
GIS lists ISO 9001 on its website. Confirm the certified scope for the specific plant producing your part.
Does GIS import from overseas suppliers?
US customs bill-of-lading records show 10 inbound shipments for GIS, with top origins including Hong Kong S.A.R. · China.
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Last verified Nov 2026. Is this your company? Request a correction.
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