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Gis

GIS serves the oil and gas, power, renewables, and critical infrastructure industries nationally and internationally.

Professional Services
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Headquarters
Galliano, Louisiana, United StatesSource: RevenueBaseRetrieved October 13, 2026
Employee range
1001 to 5000Source: RevenueBaseRetrieved October 13, 2026
Published list appearances
53 supported appearances ↗Source: RevenueBase lists
The company at a glance

What does Gis do?

GIS was established in Grand Isle, Louisiana, in 1948 and began by serving the commercial fishing industry. GIS aligns its services with major projects from development through construction, commissioning, and decommissioning.

Based on the company’s public LinkedIn information, supplied through RevenueBase.

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Company lists.

Supported appearances on published RevenueBase lists, including available memberships beyond displayed rankings.

Positions describe ordering within each source list. See how lists are built ↗

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BADGE PREVIEWGis listed #2 on Offshore platform power suppliers, September 28, 2026Open the published source list.
Gis

#2 Offshore platform power suppliers

Snapshot: September 28, 2026

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Company information

Sources & data notes.

RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 4, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 14, 2026, September 15, 2026, September 16, 2026, September 18, 2026, September 19, 2026, September 20, 2026, September 28, 2026, October 9, 2026, October 10, 2026 and October 11, 2026. How the company lists are built.

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