Southern Manufacturing

What Southern Manufacturing does

Southern Manufacturing Company, founded in 1939 and headquartered in a 240,000 square foot ISO 9001 facility in Sanford, Florida, designs and manufactures illuminated traffic-control signage and custom aluminum/stainless steel enclosures for the intelligent transportation systems (ITS) market. Its core illuminated-sign product line spans LED edge-lit (Clean Profile), standard "A" body, thin-profile, fluorescent, and induction fluorescent internally illuminated street name signs (IISNS), plus LED blank-out signs, lane use control signals, and UL-listed MUTCD regulatory and warning signs rated to maintain 70% brightness through 60,000 hours of use. The enclosure portfolio includes custom ITS cabinets for CCTV, dynamic message signs, ramp metering, and weigh-in-motion; SCADA enclosures for natural gas, wastewater, and flood control; NEMA 3R and NEMA 4X enclosures; UPS enclosures; CALTRANS-style 330-series enclosures; and flasher detector enclosures. A separately branded product, the ITS Commander (2014), adds remote power management and SNMP-based monitoring for distributed ITS cabinets.

The company earns revenue almost entirely through project-based hardware sales to U.S. state DOTs, city/county transportation departments, and engineering firms under standard government procurement; pricing is quote-based and not publicly disclosed. Go-to-market is direct enterprise field sales by a small named team supplemented by channel distributors (e.g., RAI Products in NC/SC) and engineering specification channels where Southern's products appear in plans from FDOT, CALTRANS, NCDOT, MDOT, and similar agencies. Historical flagship deployments include the 2016 Massachusetts DOT 'Go Time' program (over 400 custom enclosures across 137 sign locations with Jacobs Engineering) and the 2019-2023 FDOT District Five Daytona Beach Event Management project (dynamic wayfinding across 10 arterial corridors, $2.9M, with Atkins North America). Southern has operated as a subsidiary of Earnest Products since 2011, retaining its brand and product focus while leveraging the parent's metal-fabrication infrastructure.

Name

Southern Manufacturing

Legal name

Southern Manufacturing

Website

https://southernmfg.com

Company type

Private

Founded year

1939

Operating status

Operating

Headcount range

51–100 employees

Short description

Southern Manufacturing designs and manufactures illuminated traffic signage (LED and fluorescent street name signs, blank-out, MUTCD, lane control) and custom ITS/SCADA enclosures for U.S. state DOTs, municipalities, and engineering firms, operating from a 240,000 sq ft ISO 9001 facility in Sanford, Florida.

Ownership category

akta.pro rank

Product category

Traffic Control Signage and Enclosures

NAICS

Sign Manufacturing (339950), Electric Lighting Equipment Manufacturing (3351), Relay and Industrial Control Manufacturing (335314)

SIC

Electric Lighting & Wiring Equipment (3640), Electronic & Other Electrical Equipment (No Computer Equip) (3600), Electrical Industrial Apparatus (3620)

akta.pro primary industry

Traffic Systems & Road Safety Infrastructure (Signals, ITS, Barriers, Signage, Markings) (IMAFAEAI)

akta.pro secondary industries

Road Signage, Markings & Delineation (Regulatory/Warning/Guide Signs, Pavement Markings, Reflectors) (TLAJAGAB), Industrial & Commercial Luminaires (High-bay, Low-bay, Troffers, Downlights) (IMAGAIAA), Industrial Control Panels & Enclosures (Panel Building, MCCs, Integration) (IMAGABAJ), Audible-Visual Alarms & Notification Devices (Sounders, horns, siren/strobe combos for industrial use) (IMAGAIAF)

Keywords

• Traffic control signage
• Illuminated street signs
• ITS enclosures
• LED traffic signs
• NEMA enclosures

Headquarters

HQ city

Sanford

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Traffic Control Sign Hardware Sales: Southern Manufacturing manufactures and sells illuminated street name signs, LED blank-out signs, lane use control signals, and regulatory MUTCD signs. Revenue is generated from one-time hardware product sales to government transportation agencies and municipalities. Products are either standard catalog items or custom-engineered to specification.
2. ITS Enclosure and Cabinet Sales: Custom aluminum and stainless steel enclosures for ITS, SCADA, NEMA-rated, UPS, flasher detector, and specialty applications. Sold as bare enclosures or fully wired/configured units with power panels, UPS, AC, and remote monitoring integrated. Revenue is project-based hardware sales to state DOTs, municipalities, and infrastructure operators.
3. ITS Commander Remote Management Device: Sale of the ITS Commander — a remote power management and monitoring device for ITS cabinets. Single unit incorporating IP-addressable power outlets, relays, and monitoring inputs. Sold as a product unit to agencies managing remote ITS equipment.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Southern Manufacturing designs and manufactures traffic control signage including internally illuminated street name signs (LED and fluorescent), LED blank-out signs, lane use control signals, and MUTCD regulatory/warning signs. The company also produces custom aluminum and stainless steel enclosures for Intelligent Transportation Systems (ITS), SCADA, NEMA-rated, UPS, CALTRANS-style, and flasher detector applications, along with the ITS Commander remote power management device.

Product overview

Southern Manufacturing is a manufacturer of traffic control signage and specialty enclosures operating as part of Earnest Products (ISO 9001 certified). The product portfolio includes internally illuminated street name signs (IISNS) in LED and fluorescent variants, LED blank out signs, lane use control signs, and regulatory MUTCD signs. Their enclosure offerings span ITS enclosures for traffic management, SCADA enclosures for natural gas and wastewater applications, NEMA 3R and 4X weather-rated enclosures, UPS enclosures, CALTRANS style enclosures, and flasher detector enclosures. The company also offers the ITS Commander remote management device. Products are manufactured in a 240,000 square foot facility in Sanford, Florida using aluminum and stainless steel construction.

Differentiator

Problem solved

Functional benefit

Products and services

• Clean Profile LED Street Name Signs LED edge-lit internally illuminated street name signs with thin, lightweight parallel-sided design. Available in single or double-sided versions, 4-10 feet long, 15-30 inch heights. Edge-lit LED strips rated 60,000 hours; wind and water tested to 150 MPH.
• Standard "A" Body LED Street Name Signs Traditional trapezoid-shaped LED street name signs designed for optimal visibility at 150 feet. Available in lengths 4-10 feet with 19 or 24 inch heights. FDOT approved and UL listed.
• Thin LED Street Name Signs Low-profile streamlined version of standard LED sign with 19 inch overall height and available widths of 4-10 feet.
• Fluorescent Street Name Signs Internally illuminated street name signs using T12 fluorescent lamps with maximum brightness and superior visibility in any condition.
• Induction Fluorescent Street Name Signs Premium fluorescent signs using Sylvania Quicktronic ICE system with 100,000-hour rated lamps and 8,000 lumens per lamp output. Southern is the only manufacturer offering this technology.
• Lane Use Control Signs Solid state LED lane use control signals available in 18 or 24 inch displays with green, red, and amber LEDs for traffic management.
• Blank Out Signs LED blank-out signs that are visible when illuminated and blank when off. Used for No Right Turn, No Left Turn, and other variable message applications. Through-mounted LEDs on conformal-coated PCBs with single-LED-failure isolation.
• Pedestrian Safety Signs Internally illuminated or blank-out signs supporting pedestrian safety initiatives including Yield to Pedestrians and crosswalk displays. Dual-message versions integrate into intersection signalization.
• Regulatory and Warning MUTCD Signs LED illuminated MUTCD regulatory and warning signs rated to maintain 70% brightness after 60,000 hours. UL listed. Withstand 110 mph hurricane-force winds. 6-year limited warranty.
• Mounting Brackets Mounting hardware for free swinging or rigid mounting of signs including Pelco, MD Solutions, and Cost Cast brackets.
• ITS Commander Remote power management and system monitoring device for ITS cabinets. Single rack unit (1.75") with 8 IP-addressable 15A 120V power outlets, 6 electro-mechanical relays, 12 optically-isolated dry contacts, scheduling, data logging, and SNMP alerts. Meets TS2 temperature specifications.
• ITS Enclosures & Cabinets Custom aluminum and stainless steel enclosures for ITS applications including CCTV, DMS, ramp metering, fiber hub cabinets, wireless nodes, and weigh-in-motion. Available as bare enclosures or fully wired with power panels, UPS, AC, heaters, and remote monitoring. FDOT 785 approved.
• SCADA Enclosures NEMA 3R and NEMA 4X enclosures for SCADA and telemetry applications in natural gas, wastewater, and flood control sectors.
• NEMA 3R Enclosures Weather-resistant enclosures protecting against falling rain, dust, sand, and ice build-up with ventilation and cooling features.
• NEMA 4X Enclosures Highest level weather protection enclosures withstanding direct water exposure, windblown particles, and corrosive materials. Sizes from 16x12x6 to 84x44x26 inches.
• UPS Enclosures Custom enclosures for UPS systems with NEMA 3R or 4X ratings, designed for battery and inverter storage in traffic cabinet applications.
• Specialty Enclosures Custom specialty aluminum enclosures built to specification including battery vaults, splash park covers, and bridge junction boxes.
• CALTRANS Style Enclosures 330 series enclosures built to CALTRANS specifications including 332, 336, 336S, and 340 models with NEMA 3R rating. DOT and UL approved.
• Flasher Detector Enclosures Type I and Type II flasher enclosures made from marine grade aluminum with ventilation, locking, and optional sunshield features. Manufactured at ISO 9001:2008 registered facility.

Quantifiable outcome

• LED signs rated 60,000 hours — over 13 years of service at 12 hours/day average before maintenance is required
• +6 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Eight partnerships are on record, tiered major, minor and core.

• Atkins North America, Inc.majorImplementation/ SI/ Consulting Partner · 1 January 2019Atkins North America was the prime contractor for the $2.9M Daytona Beach Event Management project for FDOT District Five. They deployed the dynamic wayfinding system with Southern's multi-phased LED blankout signs, DMS, and travel time sensors. Southern worked with Atkins to develop custom camera mounting assemblies for the blankout signs.
• Florida Department of Transportation (FDOT) – District FivemajorOthers · 1 January 2019FDOT District Five was the end customer for the $2.9M Daytona Beach Event Management project, which deployed Southern's LED blankout signs, dynamic message signs, and travel time sensors across 10 arterial corridors. The project ran from May 2019 to July 2022.
• Massachusetts Department of TransportationmajorOthers · 1 January 2016MDOT's Go Time project was an innovative statewide project integrating solar powered DMS displays of travel time into static signs. Southern manufactured over 400 custom enclosures for this project, including battery vaults, RTTM cabinets, and Bluetooth enclosures at 137 sign locations. Jacobs Engineering designed the project.
• Jacobs EngineeringmajorImplementation/ SI/ Consulting Partner · 1 January 2016Jacobs Engineering designed the Massachusetts DOT Go Time project. Southern partnered with Jacobs to supply over 400 custom enclosures sized and configured through SolidWorks 3D modeling to meet the project's specific requirements for solar-powered DMS installations.
• SES AmericaminorOthers · 1 January 2016SES America supplied the solar-powered dynamic message signs for the Massachusetts DOT Go Time project. Southern supplied the enclosures while SES provided the signs themselves.
• RAI Products (Charlotte, NC)coreChannel Partner/ Reseller/ Distributor · 1 January 2013RAI Products of Charlotte, NC is a distributor of Southern's Internally Illuminated Street Name Signs in North and South Carolina. This is a formal distribution agreement for the resale of street sign products through the distributor network.
• Earnest ProductscoreStrategic or Co-development Partner · 1 January 2011Since 2011, Southern has been a part of Earnest Products, an ISO 9001 manufacturer of fabricated metal products. Earnest Products operates one of the largest, most modern enclosure manufacturing plants in the United States. Southern relocated to Earnest Products' 240,000 sq ft facility in Sanford, Florida with state-of-the-art equipment including automated punch press, advanced panel bender, and advanced powder coating line. Southern maintains its brand identity and product focus while benefiting from Earnest Products' manufacturing infrastructure and quality systems.
• ITSCommandercoreStrategic or Co-development PartnerITSCommander is an affiliated company of Southern Manufacturing. The ITS Commander is Southern's most recent product innovation, a remote power management and system monitoring device for ITS cabinets. The company maintains a separate website at www.itscommander.com for this product line, indicating a structured separate business unit with dedicated go-to-market resources.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Carmanah Technologies: Carmanah designs and manufactures solar-powered LED traffic signs, school zone flashers, and roadway beacons that directly overlap with Southern's illuminated/LED street name sign and blank-out sign product lines serving DOTs and municipalities.
• TAPCO (Traffic and Parking Control Company): TAPCO manufactures traffic safety products including LED-enhanced warning signs, pedestrian crosswalk systems, and school zone flashers, directly competing with Southern in MUTCD regulatory/warning signs and pedestrian safety signage for public agencies.
• Wanco: Wanco builds portable and permanent dynamic message signs, arrow boards, and traffic safety equipment, overlapping with Southern's lane use control signals, blank-out signs, and dynamic wayfinding product lines for state DOTs and municipalities.
• SES America: SES America manufactures dynamic message signs and solar-powered traffic signs; Southern and SES America partnered on the Massachusetts DOT Go Time project, with SES supplying the DMS and Southern supplying the enclosures.
• Daktronics: Daktronics produces variable message signs, dynamic wayfinding systems, and LED transportation signage, directly comparable to Southern's dynamic wayfinding, lane use control, and blank-out sign offerings for state transportation agencies.
• Polara Enterprises: Polara designs and manufactures accessible pedestrian signals (APS) and pedestrian crossing devices, directly overlapping with Southern's pedestrian safety blank-out and crosswalk sign business.
• Valmont Industries: Valmont's transportation infrastructure segment manufactures highway lighting, sign support structures, and traffic poles, comparable to Southern's traffic control signage and ITS mounting infrastructure serving state DOTs and engineering firms.

Broad incumbents

• nVent (Hoffman brand): nVent's Hoffman brand is a leading global manufacturer of electrical and ITS enclosures including NEMA 3R/4X units, directly competing with Southern's enclosure business and bringing broader portfolio, software, and global distribution advantages.
• Rittal: Rittal is a major global manufacturer of industrial and outdoor enclosures, climate control, and power distribution products, competing with Southern's ITS, SCADA, and NEMA-rated enclosure lines and offering broader integrated solutions to large DOTs.

Emerging players

• Iteris (Peek Traffic): Iteris provides smart mobility infrastructure management including traffic signal systems, detection, and transportation analytics; complementary to Southern's hardware offerings and a potential integrator/competitor for the event management and dynamic wayfinding solutions Southern supplies components into.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/southern-manufacturing

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Southern Manufacturing