# Top 32 manufacturers in Louisiana

Tamtam tracks 32 manufacturers headquartered in Louisiana. This list ranks all of them by number of employees on LinkedIn, led by Laitram, Intralox and Hardware Resources. Their median headcount is 233. Half of them were founded in 1982 or later. The most common headquarters are New Orleans (6), Shreveport (4) and Lafayette (3).

These are the largest manufacturing companies in Louisiana, ranging from industrial machinery and shipbuilding to specialized components and food products. Many are well-established firms, with a significant number founded before the 1970s. Key players include Laitram, a global manufacturing leader with extensive patents, and Intralox, a global leader in conveyance solutions. Stuller, Inc. is a major jewelry manufacturer, while Bollinger Shipyards specializes in offshore and inland vessel construction.

A notable pattern among these companies is the diverse range of manufacturing activities, reflecting a broad industrial base. For example, Hardware Resources manufactures kitchen and bath products, while Metro Aviation, Inc. is an aircraft completion center. Another trend is the presence of companies with long histories, such as MECO, founded in 1928, and Reily Foods Company, established in 1902.

🇺🇸 Louisiana · 32 companies · Updated Nov 14, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Laitram](https://www.tamtam.ai/c/laitram) (laitram.com)<br>A global manufacturing leader with over 3,800 employees, 1300 patents, and 11 locations worldwide, committed to integrity, teamwork, and innovation | Machinery Manufacturing | 🇺🇸 Harahan | 2,789 | 1949 |
| 2 | [Intralox](https://www.tamtam.ai/c/intralox) (intralox.com)<br>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 | 🇺🇸 Harahan | 2,292 | 1971 |
| 3 | [Hardware Resources](https://www.tamtam.ai/c/hardware-resources) (hardwareresources.com)<br>Manufacturer of kitchen cabinet, bath, and closet products since 1990 Offers decorative hardware, vanities, organizers, LED lighting, custom drawer boxes, and more | Wholesale Building Materials | 🇺🇸 Bossier City | 1,362 |  |
| 4 | [Stuller, Inc.](https://www.tamtam.ai/c/stuller-inc) (stuller.com)<br>A jewelry manufacturing company based in Lafayette, Louisiana, offering a wide range of products including bridal jewelry, diamonds, gemstones, tools, and supplies worldwide | Wholesale Luxury Goods and Jewelry | 🇺🇸 Lafayette | 1,206 | 1970 |
| 5 | [Bollinger Shipyards](https://www.tamtam.ai/c/bollinger-shipyards) (bollingershipyards.com)<br>Specializes in new construction, repair, and conversion of offshore and inland vessels with steel fabrication across multiple shipyards. | Shipbuilding | 🇺🇸 Lockport | 1,032 | 1946 |
| 6 | [Metro Aviation, Inc.](https://www.tamtam.ai/c/metro-aviation-inc) (metroaviation.com)<br>Aircraft completion center specializing in installing kits and avionics for air medical, law enforcement, and VIP/corporate customers Also operates aircraft for hospitals | Aviation and Aerospace Component Manufacturing | 🇺🇸 Shreveport | 816 | 1982 |
| 7 | [EPIC Piping](https://www.tamtam.ai/c/epic-piping) (oneepic.com)<br>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 | 🇺🇸 Baton Rouge | 675 | 2015 |
| 8 | [DelVal Flow Controls](https://www.tamtam.ai/c/delval-flow-controls) (delvalflow.com)<br>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 | 🇺🇸 Geismar | 613 | 2006 |
| 9 | [MECO (Mechanical Equipment Company, Inc.)](https://www.tamtam.ai/c/meco-mechanical-equipment-company-inc) (meco.com)<br>A global leader in designing advanced water purification systems for various industries with locations worldwide, offering valuable and sustainable solutions | Industrial Machinery Manufacturing | 🇺🇸 Mandeville | 510 | 1928 |
| 10 | [PT. Soho Industri Pharmasi](https://www.tamtam.ai/c/pt-soho-industri-pharmasi) (soho.co.id)<br>A pharmaceutical company based in Shreveport, LA, United States, specializing in the industrial production of medications | Pharmaceutical Manufacturing | 🇺🇸 Shreveport | 464 |  |
| 11 | [McElroy Metal](https://www.tamtam.ai/c/mcelroy-metal) (mcelroymetal.com)<br>A third-generation family-owned metal components company with a national presence, offering quality products and services to the construction industry | Wholesale Building Materials | 🇺🇸 Bossier City | 456 | 1963 |
| 12 | [Lion Elastomers](https://www.tamtam.ai/c/lion-elastomers) (lionelastomers.com)<br>A premier manufacturer of high-quality elastomeric polymers, offering top-performing rubber materials and innovative solutions for customer needs and new product development | Chemical Manufacturing | 🇺🇸 Geismar | 397 | 1952 |
| 13 | [Acadian Contractors, Inc.](https://www.tamtam.ai/c/acadian-contractors-inc) (acadiancontractors.com)<br>Provides fabrication and offshore services, including blast, paint, exotic metals, and field services, ensuring projects are completed efficiently and correctly. | Construction | 🇺🇸 Abbeville | 290 | 1973 |
| 14 | [Reily Foods Company](https://www.tamtam.ai/c/reily-foods-company) (reilyproducts.com)<br>Family-owned food company based in New Orleans manufacturing and marketing a variety of quality food products nationwide, with a focus on growth and innovation | Manufacturing | 🇺🇸 New Orleans | 258 | 1902 |
| 15 | [Smitty's Supply, Inc.](https://www.tamtam.ai/c/smitty-s-supply-inc) (smittysinc.net)<br>Leading manufacturer and distributor of lubricants and related products, offering high-quality products at competitive prices Distributes major brand products nationwide and internationally | Oil and Gas | 🇺🇸 Roseland | 234 | 1969 |
| 16 | [RNGD](https://www.tamtam.ai/c/rngd) (rngd.com)<br>A top national construction services company with offices in New Orleans and Nashville, known for innovation and value in project delivery | Construction | 🇺🇸 New Orleans | 233 | 2013 |
| 17 | [AGCO](https://www.tamtam.ai/c/agco) (agcocorp.com)<br>An American-based company providing products and services in a specific industry (specific industry not mentioned in the description) | Real Estate | 🇺🇸 Lafayette | 221 |  |
| 18 | [Calcasieu Refining Company](https://www.tamtam.ai/c/calcasieu-refining-company) (calcasieurefining.com)<br>An oil and energy company located in Lake Charles, LA, specializing in refining processes and operations related to the oil industry | Oil and Gas | 🇺🇸 Lake Charles | 118 |  |
| 19 | [CORTEC](https://www.tamtam.ai/c/cortec) (uscortec.com)<br>Design, manufacture, and service of flow control equipment for high-pressure, corrosive, and abrasive fluid applications, meeting API and ISO quality standards | Oil and Gas | 🇺🇸 Houma | 113 | 2004 |
| 20 | [Alloy Piping Products (APP)](https://www.tamtam.ai/c/alloy-piping-products-app) (alloypipingproducts.com)<br>Integrated manufacturer and distributor of fittings and piping components, providing solutions for power, midstream, refining, chemical, and petrochemical industries worldwide | Oil and Gas | 🇺🇸 Shreveport | 82 |  |
| 21 | [GR.A.M.M. GRUPPO ALIMENTARE MEDITERRANEO MILO S.R.L.](https://www.tamtam.ai/c/gr-a-m-m-gruppo-alimentare-mediterraneo-milo-s-r-l)<br>Produces all forms of pasta, baked goods, bread substitutes, and gluten-free foods. Engages in local commercialization and wholesale trade. | Food and Beverage Manufacturing | 🇺🇸 Bitonto | 72 |  |
| 22 | [Frederick's Manufacturing LLC](https://www.tamtam.ai/c/frederick-s-manufacturing-llc) (fredmach1.com)<br>Specializing in CNC machining and manufacturing, this company in Louisiana serves marine, industrial, and oilfield customers with a focus on Sub Sea Structures and Wireline Tools | Oil and Gas | 🇺🇸 New Iberia | 51 | 1965 |
| 23 | [MTP Drivetrain Services](https://www.tamtam.ai/c/mtp-drivetrain-services) (mtpdrivetrain.com)<br>Specializing in remanufacturing drivetrain components for military tactical vehicles, offering immediate exchange and custom programs globally with vast inventory of surplus parts | Truck Transportation | 🇺🇸 Many | 43 | 1993 |
| 24 | [Magic Seasoning Blends, LLC](https://www.tamtam.ai/c/magic-seasoning-blends-llc) (magicseasoningblends.com)<br>A food production company located in Harahan, Louisiana, specializing in creating magic seasoning blends for a variety of culinary applications | Food and Beverage Manufacturing | 🇺🇸 New Orleans | 43 | 1982 |
| 25 | [Steel Forgings, Inc.](https://www.tamtam.ai/c/steel-forgings-inc) (steelforgings.com)<br>Steel Forgings, Inc is an oil & energy company based in Shreveport, LA, specializing in steel manufacturing for the oil industry | Oil and Gas | 🇺🇸 Shreveport | 32 |  |
| 26 | [WHITLIEJO SPECIALTY COMPANY, LLC](https://www.tamtam.ai/c/whitliejo-specialty-company-llc) (whitliejospecialty.com)<br>API-6A licensed manufacturing company specializing in oil & energy products such as wellhead equipment, flanges, fittings, seals, and fasteners Located in Louisiana and Texas | Oil and Gas | 🇺🇸 Broussard | 27 | 2008 |
| 27 | [Honiron](https://www.tamtam.ai/c/honiron) (honiron.com)<br>A global manufacturing solutions provider specializing in industrial process equipment for various industries, offering innovative and cost-effective solutions to operational challenges | Machinery Manufacturing | 🇺🇸 Morgan City | 11 | 1852 |
| 28 | [Richter Pumps and Valves USA - A Unit of IDEX Corporation](https://www.tamtam.ai/c/richter-pumps-and-valves-usa-a-unit-of-idex-corporation) (richter-ct.com)<br>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 | 🇺🇸 Geismar | 10 |  |
| 29 | [Impact Group- Impact Cooling Solutions, LLC](https://www.tamtam.ai/c/impact-group-impact-cooling-solutions-llc) (impactgroupusa.com)<br>An energy solutions provider under the Impact Group, offering energy-saving solutions in the Americas with technical support, warehousing, and logistics services | Industrial Machinery Manufacturing | 🇺🇸 New Orleans | 6 | 1987 |
| 30 | [Tefsco, LLC](https://www.tamtam.ai/c/tefsco-llc) (tefsco.com)<br>A leading provider of oil and gas energy services, drilling operations, production operations, and pipeline operations equipment and solutions worldwide | Oil and Gas | 🇺🇸 Lafayette | 5 | 2010 |
| 31 | [Westport Welding Innovations](https://www.tamtam.ai/c/westport-welding-innovations) (westportadditive.com)<br>A materials research and engineering services company specializing in innovative welding techniques and solutions | Defense and Space Manufacturing | 🇺🇸 New Orleans | 4 | 2016 |
| 32 | [ADVANO](https://www.tamtam.ai/c/advano) (advano.io)<br>Innovative company in New Orleans developing advanced silicon technology for Lithium-ion batteries, aiming to enhance energy storage in electric vehicles and electronics | Renewable Energy Power Generation | 🇺🇸 New Orleans | 1 | 2016 |

## 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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## The same list elsewhere in United States

- [Manufacturers in the United States](https://www.tamtam.ai/l/manufacturers-united-states) (8,677)
- [Manufacturers in California](https://www.tamtam.ai/l/manufacturers-california) (1,065)
- [Manufacturers in Texas](https://www.tamtam.ai/l/manufacturers-texas) (621)
- [Manufacturers in Illinois](https://www.tamtam.ai/l/manufacturers-illinois) (528)
- [Manufacturers in Ohio](https://www.tamtam.ai/l/manufacturers-ohio) (478)
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- [Manufacturers in New York State](https://www.tamtam.ai/l/manufacturers-new-york-state) (398)
- [Manufacturers in Pennsylvania](https://www.tamtam.ai/l/manufacturers-pennsylvania) (364)
- [Manufacturers in Wisconsin](https://www.tamtam.ai/l/manufacturers-wisconsin) (331)
- [Manufacturers in Georgia](https://www.tamtam.ai/l/manufacturers-georgia) (281)
- [Manufacturers in Florida](https://www.tamtam.ai/l/manufacturers-florida) (274)
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## The same list elsewhere

- [Manufacturers in the world](https://www.tamtam.ai/l/manufacturers-in-the-world) (39,568)
- [Manufacturers in North America](https://www.tamtam.ai/l/manufacturers-in-north-america) (10,135)

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Source: https://www.tamtam.ai/l/manufacturers-louisiana