The companies already working here.
Grouped by what they do, here is the industry already at work south of the bridge and along Highway 90 and Highway 63, the firms the rest of the coast depends on.
The distributors that keep product on the shelf.
MRC Global
MRC Global is one of the world's largest distributors of pipe, valves, and fittings to the energy sector, a publicly traded company headquartered in Houston with roots going back to 1921. Its Moss Point service center has anchored the Highway 90 corridor since around 2008, holding the inventory that lets a Gulf Coast refinery, chemical plant, or pipeline contractor get the flow-control parts it needs without waiting on a shipment from out of state. When a plant calls during a turnaround, this is the kind of supplier that answers. That depth of stock, sitting inside the city, is exactly what a new industrial operator wants nearby on day one.
LGG Industrial
A short distance down the corridor, LGG Industrial distributes the sealing and flow-control products that keep process piping tight: gaskets, bolting, hose, valves, and the engineered kits a plant orders by the pallet. The branch carries the long-running Lewis-Goetz and Goodall heritage and was rebranded from ERIKS North America in 2024. Its customers are the refineries, petrochemical plants, chemical producers, and power stations strung along the coast. Together with MRC, it means two serious industrial distributors keep stock within a few minutes of each other, right here.
The crews that keep the plants running.
HPC Industrial
HPC Industrial, part of Clean Harbors, is one of the largest industrial-cleaning and plant-services companies in North America. From its branch on the corridor it runs hydroblasting, tank and vessel cleaning, vacuum services, and the turnaround crews that descend on a refinery when it shuts a unit down for maintenance. This is the skilled, around-the-clock work that keeps heavy industry compliant and running. Having that capability based in Moss Point, rather than trucked in from out of state, shortens response time for every plant on the coast.
Analytic Stress Relieving
Analytic Stress Relieving handles the heat. Founded in 1979 and now operating nationwide, the company performs industrial heat treating and post-weld stress relieving: the controlled heating that pulls residual stress out of welded pipe, vessels, and steel so the work passes code. It is woman-owned, with corporate offices in Lafayette and its Gulf Coast operation at 7991 Highway 90. Most people never think about this step, but no refinery, shipyard, or power plant can certify a major weld without it.
Superior Plant Rentals
Superior Plant Rentals rounds out the services cluster with portable, on-site machining. Its crews bring line boring machines, flange facers, and pipe-beveling tools to the job so a plant can be repaired in place instead of being torn apart. The Superior family of companies pulls several specialties under one roof, including York Portable Machine Tools, Cliff's Bits Precision Grinding, and 5M Manufacturing, and serves oil and gas, refining, power, and shipbuilding. Three doors on one corridor, three different ways to keep a plant from going dark.
The supply houses behind the workforce.
Wesco Gas & Welding Supply
Wesco Gas & Welding Supply is the kind of place a working corridor cannot do without. It stocks industrial, specialty, and medical gases, welding machines and consumables, and safety products, and it runs an on-site cylinder dock with testing and gas-apparatus repair. The Moss Point store is one of eleven Wesco locations across the Gulf Coast. For every welder and fabricator on the corridor, this is the daily resupply.
Dixie Rubber & Belting
Dixie Rubber & Belting keeps the material moving. It supplies conveyor belting, industrial hose, and gaskets, and it installs and vulcanizes conveyor belt up to seventy-two inches wide, with 24-hour emergency service for the plants that cannot afford a stopped line. By the company's own account it has served the Moss Point and Pascagoula area for around thirty-five years. When a belt fails at a plant or a yard, the call comes here.
Safety Wearhouse
Safety Wearhouse outfits the people. The family-owned store carries the flame-resistant clothing, work boots, hard hats, gloves, and respirators that every plant and yard worker is required to wear, and it handles embroidery and screen printing on site. Its roots run back to a 1957 Mobile shoe-repair business; the Moss Point store opened on Highway 90 in 2011. A corridor full of industrial jobs needs a place that keeps that workforce safe and outfitted, and this is it.
The largest industrial force on the coast is the neighbor.
Ingalls Shipbuilding
And then there is the anchor. Ingalls Shipbuilding, a division of Huntington Ingalls Industries, is Mississippi's largest manufacturing employer and has built ships for the U.S. Navy and Coast Guard since 1938. Its main yard sits just across the river in Pascagoula, where more than eleven thousand shipbuilders construct destroyers, amphibious ships, and cutters. Ingalls reaches into Moss Point too: it bought property in the city in 2014 and partners with Moss Point High School on its Shipbuilder Academy, training the next generation of welders and fitters. The single largest industrial force on the Mississippi Gulf Coast is, quite literally, the neighbor.
