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List of multinational companies in Louisiana

Tamtam tracks 46 multinational companies headquartered in Louisiana. This list ranks all of them by number of employees on LinkedIn, led by Lumen Technologies, Wipro Technologies and MMR Group. Their median headcount is 607. Half of them were founded in 1982 or later. The most common headquarters are New Orleans (8), Baton Rouge (7) and Lafayette (6).

๐Ÿ‡บ๐Ÿ‡ธ Louisiana46 companiesUpdated Nov 14, 2026

This selection of multinational companies in Louisiana includes large and mid-sized firms. Lumen Technologies provides digital connectivity solutions, while Wipro Technologies offers management consulting. MMR Group is a provider of electrical and technical services, and Lamar Advertising Company specializes in outdoor advertising. PSC Group supports refineries and chemical plants, and POOLCORP distributes swimming pool supplies. Many companies, such as Edison Chouest Offshore, HORNBECK OFFSHOREยฎ, PHI Aviation, and GIS, operate in the maritime and energy sectors.

The companies represent a mix of industries, with a notable presence in technology, business consulting, and maritime transportation. There is also a strong cluster of companies headquartered in Baton Rouge, including MMR Group, Lamar Advertising Company, and PSC Group.

#CompanyIndustryHeadquarters EmployeesFounded
1
Lumen Technologieslumen.com

The company provides digital connectivity solutions, utilizing their network strength to connect people, data, and applications quickly, securely, and effortlessly

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ Monroe 49,357 n/a
2
Wipro Technologieswipro.com

Management consulting company located in New Orleans, providing services to help businesses improve operations and achieve their goals

Business Consulting and Services ๐Ÿ‡บ๐Ÿ‡ธ New Orleans 16,942 n/a
3
MMR Groupmmrgrp.com

Industry-leading provider of electrical, instrumentation, and technical services across a variety of sectors, known for exceptional value, quality, and safety

Construction ๐Ÿ‡บ๐Ÿ‡ธ Baton Rouge 4,338 1991
4
Lamar Advertising Companylamar.com

Offers various outdoor advertising formats, including billboards, transit, and airport displays, to help businesses reach broad audiences across the United States and Canada.

Advertising Services ๐Ÿ‡บ๐Ÿ‡ธ Baton Rouge 3,761 1902
5
PSC Grouppscgroup.com

Provider of product handling, logistics, and support services to refineries, chemical plants, and marine industries with a focus on safety, quality, and employee care

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Baton Rouge 3,200 1952
6
POOLCORPpoolcorp.com

A global distributor of swimming pool supplies and leisure products, serving customers across North America, Europe, and Australia through diverse markets and sustainable practices

Wholesale ๐Ÿ‡บ๐Ÿ‡ธ Covington 2,993 1983
7
Laitramlaitram.com

A global manufacturing leader with over 3,800 employees, 1300 patents, and 11 locations worldwide, committed to integrity, teamwork, and innovation

Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Harahan 2,789 1949
8
Intraloxintralox.com

Global leader in conveyance solutions offering innovative technologies for various industries in over 100 countries, backed by strong guarantees and global support

Automation Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Harahan 2,292 1971
9
Edison Chouest Offshorechouest.com

A global leader in marine transportation solutions, offering diverse and technologically advanced vessels for a growing customer base worldwide

Maritime Transportation ๐Ÿ‡บ๐Ÿ‡ธ Cut Off 2,078 1960
10
HOTWORXhotworx.net

Innovative fitness program combining infrared heat and isometrics for a 30-minute workout, providing better results than traditional hot yoga routines

Wellness and Fitness Services ๐Ÿ‡บ๐Ÿ‡ธ Marrero 1,885 2017
11
HORNBECK OFFSHOREยฎhornbeckoffshore.com

A leading provider of technologically advanced offshore service vessels for the energy industry in the US Gulf of Mexico and Latin America Dedicated to safety and environmental protection

Maritime Transportation ๐Ÿ‡บ๐Ÿ‡ธ Covington 1,490 n/a
12
PHI Aviationphihelico.com

A global leader in helicopter transportation, providing safe and reliable services for energy, medical, government, and military organizations with innovative solutions

Airlines and Aviation ๐Ÿ‡บ๐Ÿ‡ธ Lafayette 1,466 1949
13
GISgisy.com

A company founded in 1948, originally serving the fishing industry, now providing services to oil & gas, power, renewables, and critical infrastructure sectors worldwide

Professional Services ๐Ÿ‡บ๐Ÿ‡ธ Galliano 1,464 1948
14
Wrikewrike.com

Provides a work delivery platform for people and AI, ensuring governed, auditable, and controlled integration of AI into consequential workflows for enterprises.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Diego 1,257 2006
15
EDGedg.net

A global consulting engineering firm serving oil & gas and industrial markets with innovative solutions in various disciplines Offering growth opportunities and value to customers worldwide

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Metairie 1,053 1982
16
Barrister Global Services Networkbarrister.com

A leading provider of IT services in the US, offering competitive pricing, multi-vendor management, and nationwide on-site support for hardware repair and maintenance

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Hammond 923 1972
17
C-Innovation, LLCc-innovation.com

Specializing in advanced subsea solutions, C-Innovation offers ROV services, subsea construction, and field development for the oil and gas sector worldwide

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Mandeville 913 2007
18
Phelps Dunbar LLPphelps.com

A regional law firm with 300+ attorneys serving major commercial centers along the Gulf Coast, specializing in admiralty, business, employment, health care, insurance, and litigation services

Law Practice ๐Ÿ‡บ๐Ÿ‡ธ New Orleans 883 1853
19
EPIC Pipingoneepic.com

Leading global industrial pipe fabrication organization with over 500 years of combined experience, offering turn-key solutions for various industries with cutting-edge technology

Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Baton Rouge 675 2015
20
Globalstarglobalstar.com

Provides satellite and terrestrial connectivity services, offering secure data transmission, asset tracking, and monitoring for global consumers, businesses, and government agencies.

Satellite Telecommunications ๐Ÿ‡บ๐Ÿ‡ธ Covington 637 1991
21
CenturyLink (Formerly Savvis Inc.)centurylink.com

Global communications, hosting, cloud, and IT services provider with a focus on managed hosting, colocation, and cloud solutions for business customers worldwide

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ Monroe 630 1930
22
DelVal Flow Controlsdelvalflow.com

DelVal Flow Controls offers a diverse range of high-quality valves, actuation accessories, and control systems for various industries worldwide with ISO 9001-2015 compliance

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Geismar 613 2006
23
United Vision Logisticsuvlogistics.com

A nationally ranked transportation and logistics provider offering services across the US, with a strong presence in the energy industry

Truck Transportation ๐Ÿ‡บ๐Ÿ‡ธ Lafayette 607 n/a

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24
IMTTimtt.com

A leading industry player in bulk liquid product handling and storage across North America, specializing in petroleum, biofuels, chemicals, and vegetable/tropical oils

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ New Orleans 601 n/a
25
Dynamic Industries, Inc.dynamicind.com

Offshore services company specializing in piping fabrication, installation, and maintenance Provides full line energy services, accommodations, and EPCIM contracting globally

Construction ๐Ÿ‡บ๐Ÿ‡ธ New Orleans 579 1985
26
MECO (Mechanical Equipment Company, Inc.)meco.com

A global leader in designing advanced water purification systems for various industries with locations worldwide, offering valuable and sustainable solutions

Industrial Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Mandeville 510 1928
27
Tulane University Celia Scott Weatherhead School of Public Health and Tropical Medicinesph.tulane.edu

A leading school of public health offering a diverse range of programs, research opportunities, and global experience for students pursuing careers in public health

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ New Orleans 468 1912
28
Taylors International Services, Inc.taylors-international.com

Provider of global life support services, including catering, housekeeping, base operations support, lodging, and facility management for clients worldwide in various environments

Food and Beverage Services ๐Ÿ‡บ๐Ÿ‡ธ Lafayette 466 1996
29
Pinot's Palettefranchise.pinotspalette.com

An upscale art studio combining wine and painting experiences, offering franchise opportunities across the US and Canada with award-winning success

Entertainment Providers ๐Ÿ‡บ๐Ÿ‡ธ Mandeville 458 2009
30
ESS Support Services Worldwide - Gulf of Mexicoessgulf.com

Specializing in offshore and remote site catering and support services, ESS offers innovative solutions with a focus on great people, service, and results worldwide

Hospitality ๐Ÿ‡บ๐Ÿ‡ธ Lafayette 449 n/a
31
JM Test Systems, LLC.jmtest.com

A full-service metrology lab offering NIST Traceable calibration and repair for electronic, dimensional, and mechanical test equipment with ISO/IEC 17025 accreditation

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Baton Rouge 417 1982
32
AFS Logisticsafs.net

Helps companies understand freight costs, optimizes shipping programs, and manages transportation services, ensuring fair payment and deserved outcomes for shippers.

Transportation, Logistics, Supply Chain and Storage ๐Ÿ‡บ๐Ÿ‡ธ Shreveport 398 1982
33
Bilfinger Salamis Incbilfinger.com

An experienced provider of asset life cycle support services to the oil and gas industry, offering integrated solutions in maintenance, repair, and operations

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Broussard 343 n/a
34
Tulane University Law Schoollaw.tulane.edu

Top 50 US law school offering studies in common and civil law systems, with international connections, pro bono service, and community focus

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ New Orleans 313 n/a
35
PECveriforce.com

A global leader in supply chain risk management solutions, providing safety training programs and compliance platforms to optimize business performance

Transportation, Logistics, Supply Chain and Storage ๐Ÿ‡บ๐Ÿ‡ธ Covington 237 1993
36
Quality Companiesqualitycompanies.com

A consortium of oil and gas product and service companies with four industry-leading entities, focused on quality, people, and performance Located throughout the Gulf Coast region

Oil and Gas ๐Ÿ‡บ๐Ÿ‡ธ Youngsville 226 2001
37
AGCOagcocorp.com

An American-based company providing products and services in a specific industry (specific industry not mentioned in the description)

Real Estate ๐Ÿ‡บ๐Ÿ‡ธ Lafayette 221 n/a
38
The Dupuy Groupdupuygroup.com

A global logistics and storage provider with over 27 million square feet of warehouse space offering transportation, logistics, and exceptional customer service

Transportation, Logistics, Supply Chain and Storage ๐Ÿ‡บ๐Ÿ‡ธ New Orleans 102 1936
39
Dwight Andrus Insurance, a division of Hub International Gulf Southhubinternational.com

A leading insurance brokerage offering risk management, employee benefits, retirement, and wealth management services with a focus on tailored solutions and client advocacy

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Lafayette 91 1945
40
Conflandey Industriesconflandey-industries.com

Transforms wire rod into drawn wire for specific applications and dimensions. Products are used globally in automotive, construction, furniture, and paper industries.

Mining ๐Ÿ‡บ๐Ÿ‡ธ Port Sur Saone 62 1901
41
Rabalais Lawestateplanninginlouisiana.com

Louisiana-based law firm specializing in estate planning and settlement services for clients in multiple states, with a focus on professionalism and efficiency

Law Practice ๐Ÿ‡บ๐Ÿ‡ธ Baton Rouge 17 1995
42
Brown Realty Company of Rayvillebrownrealtyco.com

This company offers professional real estate brokerage services for farmland, timberland, and recreational properties in multiple states with over 100 years of combined experience

Real Estate ๐Ÿ‡บ๐Ÿ‡ธ Rayville 14 n/a
43
Honironhoniron.com

A global manufacturing solutions provider specializing in industrial process equipment for various industries, offering innovative and cost-effective solutions to operational challenges

Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Morgan City 11 1852
44
Richter Pumps and Valves USA - A Unit of IDEX Corporationrichter-ct.com

A pioneering manufacturer of lined pumps, valves, and ball valves for challenging production processes, ensuring safe and high-quality operation for over 65 years

Industrial Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Geismar 10 n/a
45
NFP Corporate Services (LA), Inc.nfp.com

A leading provider of comprehensive insurance solutions, empowering clients with expert teams, innovative technology, and strong insurer relationships for achieving their goals

Insurance ๐Ÿ‡บ๐Ÿ‡ธ Baton Rouge 5 1977
46
Prime Cyber Technologiesprimecybertechnologies.com

An international company offers control systems integration, wireless communications, data management, and telecommunication solutions tailored to specific needs worldwide

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ New Orleans 3 2015

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 14, 2026.

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