Southern Avionics Company

What Southern Avionics Company does

Southern Avionics Company (SAC) is a privately held, Beaumont, Texas-based manufacturer of low-frequency radio navigation aids founded in 1962/1963 by John B. Goodhue, who invented the first commercial offshore non-directional beacon for Gulf of Mexico oil platforms. The company designs and assembles its products at its Texas facility, producing the SE Series NDB transmitters (SE125 Single/Dual, SE250, SE500, SE1000, and a Transportable variant) with carrier power from 10 to 1,000 Watts operating across 190-1,800 kHz, the SC Series DGPS Reference Station Transmitters (SC200, SC500, SC1000A) which the company discontinued in December 2024, and a complementary accessory line including PC/PV Antenna Tuning Units (PC1000 Series 3/4, PC3000, PV1000, PV3000), land/offshore/marine antennas, MR-5 monitor receivers, WebWatch embedded remote monitoring software, Remote Control Units, IP66 enclosures, and test equipment. Underlying technology uses Renesas microcontrollers and Analog Devices Direct Digital Synthesizers, with Ethernet-based remote monitoring and Built-In Test Equipment (BITE) for troubleshooting.

The company serves four primary verticals: civil aviation authorities (instrument approach NDBs at airports), oil and gas operators (helideck and offshore platform navigation), maritime/lighthouse authorities (harbor and shipping lane navigation via DGPS, now discontinued), military users (independent navigation not dependent on satellite signals), and flight training centers. Documented customers include Airports Authority of India (14-site 500W NDB procurement), ONGC India (33 SE125 Dual IP66 units), BULATSA Bulgaria, Ecuador's civil aviation authority, the US Coast Guard (1997 Nationwide DGPS program), and various offshore operators in Libya, Brazil, and Kenya, with one SS-500 transmitter documented as operational for 32+ years in Brazil.

SAC generates revenue through four streams: (1) hardware sales of NDB and formerly DGPS transmitters and accessories on a quote-based model with no public pricing, (2) installation services delivered by certified field engineers for offshore rigs, platforms, vessels, and land sites, (3) Authorized Field Technician and Operator training held at factory or on-site, and (4) paid technical support (post-warranty at $150/hour with a 2-hour minimum). Go-to-market is hybrid: sales-led direct enterprise engagement from the Beaumont headquarters combined with a global authorized sales and service center network covering the Americas, Europe, Asia, the Middle East, and Africa via partners including Network Innovations, NSSL Global, Station Satcom, Jason Marine, Radio Holland, and Balkantel. Post-warranty support at fixed hourly rates, multi-decade product lifespans (MTBF ~28,153 hours; MTTR 15 minutes), and required FAA/ICAO/USCG/FCC/ANATEL/IEC certifications collectively create a long-tail, recurring service revenue profile layered atop episodic large capital orders.

Name

Southern Avionics Company

Legal name

Southern Avionics Company

Website

https://southernavionics.com

Company type

Private

Founded year

1963

Operating status

Operating

Headcount range

11–50 employees

Short description

Southern Avionics Company, founded in 1962 in Beaumont, Texas, designs and manufactures low-frequency non-directional beacon (NDB) transmitters and antennas serving civil aviation authorities, offshore oil and gas operators, maritime authorities, and military users worldwide through direct sales and an authorized global service partner network.

Ownership category

akta.pro rank

Product category

Aviation and Marine Navigation Equipment

NAICS

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Search, Detection, Navagation, Guidance, Aeronautical Sys (3812), Aircraft Parts & Auxiliary Equipment, Nec (3728)

akta.pro primary industry

GNSS/GPS Navigation & Augmentation Systems (IMABAFAC)

Keywords

• NDB transmitters
• DGPS reference stations
• Aviation navigation aids
• Marine navigation equipment
• Radio beacon systems

Headquarters

HQ city

Beaumont

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Revenue model

1. Navigation Equipment Sales: Sale of NDB transmitters (SE125, SE250, SE500, SE1000, Transportable), DGPS systems (SC1000A, SC500, SC200), Antenna Tuning Units, and antenna systems for aviation and maritime navigation applications.
2. Installation Services: On-site installation services by certified field engineers for offshore drilling rigs, platforms, deep-sea vessels, and land installations. Includes turnkey project implementation.
3. Training Services: Equipment training courses including Authorized Field Technician training and Operator training. Training available at factory or on-site, with custom instruction tailored to customer environments. Certificates issued upon completion.
4. Technical Support Services: Technical support provided by phone, email, and in-person. Remote troubleshooting support, documentation services, PCB repair/replacement, and onsite technical service worldwide. Repair charges at $150/hr with 2-hour minimum.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels7 records

Core offering

Southern Avionics Company designs, manufactures, and sells Non-Directional Beacon (NDB) transmitters and Differential GPS (DGPS) reference station transmitters, along with associated antenna tuning units, antennas, and remote monitoring equipment, for civil aviation authorities, offshore oil and gas operators, maritime authorities, and military users worldwide. All equipment is built at the company's Beaumont, Texas facility and supported by a global authorized sales and service center network.

Product overview

Southern Avionics Company offers a comprehensive portfolio of marine and aviation navigation equipment centered on Non-Directional Beacon (NDB) and Differential GPS (DGPS) systems. The core product line includes SE Series NDB transmitters (SE125, SE250, SE500, SE1000) ranging from 125 to 1000 Watts, paired with SC Series DGPS reference station transmitters (SC200, SC500, SC1000A) for enhanced positioning accuracy. The ecosystem is supported by complementary antenna tuning units (PC1000 Series 3/4, PC3000, PV1000, PV3000) that match transmitter output to antenna impedance, and various antenna types including Guyed Mast, Symmetrical T, Helipad, Whip, and 34 Foot Mast configurations. Remote monitoring is enabled through WebWatch embedded software and Remote Control Units with multiple connectivity options including Ethernet, fiber optic, and serial interfaces. The company discontinued DGPS product line as of December 2024.

Differentiator

Problem solved

Functional benefit

Products and services

• SE Series NDB Transmitters Family of Non-Directional Beacon transmitters offered in 125W (SE125 Single/Dual), 250W (SE250), 500W (SE500), and 1000W (SE1000) carrier power configurations, plus a Transportable variant. Programmable from 190-1800 kHz, with Renesas Microcontrollers, Analog Devices Direct Digital Synthesizers, Built-In Test Equipment, and full Ethernet capability with embedded WebWatch software for remote monitoring. Used by civil aviation authorities for instrument approaches and by oil and gas operators for offshore platform navigation.
• SC Series DGPS Reference Station Transmitters Differential GPS reference station transmitters offered in SC1000A (50-1000W), SC500 (50-500W), and SC200 (10-200W) adjustable carrier power configurations, meeting FCC, USCG, ITU, and IEC 60945:2002 requirements. Incorporates RSIM/Transfer Control System with 24 Binary Control States and 40 Binary Monitor States for harbor navigation and shipping lane management. Product line discontinued as of December 2024.
• Antenna Tuning Units (ATUs) Family of antenna tuning units including PC1000 Series 3, PC1000 Series 4, PC3000, PV1000, and PV3000 providing automatic phase and resistance matching for NDB and DGPS systems from 200W to 3000W continuous power. Include automatic tuning mechanisms, impedance matching, remote control capabilities, and lightning protection with adjustable spark gaps.
• Transmitter Antenna Systems Range of antenna systems including Guyed Mast Antennas (40-145 ft), Symmetrical T Antennas (30-120 ft), Helipad Antennas (CAP437 and CAP670 compliant), 10m Fiberglass Whip Antennas, and 34 Foot Mast Antennas with capacitive top loading for land and offshore NDB/DGPS installations.
• Installation and Turnkey Project Services On-site installation services delivered by certified field engineers for offshore drilling rigs, platforms, deep-sea vessels, and land installations, including turnkey project implementation from early-stage planning through completion for aviation authorities, oil and gas operators, and maritime users worldwide.

Quantifiable outcome

• Mean Time Before Failure of 28,153 hours
• +4 more outcomes

Named customers7 records

Segments5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Ten partnerships are on record, tiered core and major.

• Elektronik LabcoreImplementation/ SI/ Consulting Partner · 1 February 2020Local partner for ONGC India project based in Mumbai (R-13 Navroz Baug, Lalbaug, Mumbai-400012). President Khusru B. Sanjana serves as installer and service provider for turnkey NDB projects in India. Responsible for installation and after-sales support of SE125 Dual IP66 NDB transmitters.
• Balkantel LtdcoreImplementation/ SI/ Consulting Partner · 1 January 2020Project-oriented engineering company established in 1990, based in Sofia, Bulgaria. Specializes in civil and military aviation navigation systems, specialized military communication, railway signaling, and safety systems. Commercial Director Nikola Dourchev leads partnership. Completed BULATSA turnkey project at five sites in Bulgaria.
• Three D Integrated SolutionscoreImplementation/ SI/ Consulting PartnerLocal partner for Airports Authority of India (AAI) project. Staff including Bhupendra Kumar and Nandy Bhatia instrumental in coordination of 14-site NDB installation project across India.
• NSSL GlobalcoreChannel Partner/ Reseller/ DistributorAuthorized Land NDB Sales and Service Center covering Europe and Africa. Located at 6 Wells Place, Gatwick Park Business Centre, Redhill, Surrey, RH1 3DR, UK. Contact Paul Mariner. Provides sales and service support for SAC products in these regions.
• Station Satcom Pvt. Ltd.majorChannel Partner/ Reseller/ DistributorAuthorized Land and Offshore NDB Sales and Service Center for India. Located at 801, Madhava Building, Bandra Kurla Complex, Mumbai 400051, India. Contact [email protected].
• Jason Marine Group LtdmajorChannel Partner/ Reseller/ DistributorAuthorized Offshore NDB Sales and Service Center for Singapore and Southeast Asia. Located at 194 Pandan Loop, #06-05 Pantech Business Hub, Singapore 128383. Contact [email protected] for sales and [email protected] for service support.
• Radio Holland Singapore Pte. LtdmajorChannel Partner/ Reseller/ DistributorAuthorized Offshore NDB Sales and Service Center. Located at 2 Bukit Batok Street 23, Bukit Batok Connection, #06-01/02, Singapore 659554. Contact [email protected].
• Radio Holland Netherlands B.V.majorChannel Partner/ Reseller/ DistributorAuthorized Offshore NDB Sales and Service Center for Netherlands. Located at Droogdokweg 71, 3089JN Rotterdam. Contact [email protected].
• Radio Holland Middle EastmajorChannel Partner/ Reseller/ DistributorAuthorized Offshore NDB Sales and Service Center for Middle East. Located at PO Box 4592, Sharjah, United Arab Emirates.
• Network Innovations (now part of Network Innovations Group)majorChannel Partner/ Reseller/ DistributorAuthorized Land and Offshore NDB Sales and Service Center for North and South America. Located at 8911 S. Sam Houston Parkway W., Suite #130, Missouri City, TX 77489. Contact [email protected]. Applications include LAND and OFFSHORE systems.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Nautel Limited: Nautel is a Canadian manufacturer known historically for NDB transmitters (Nautel NDB product line). Directly competes with SAC's SE Series in the LF/MF aviation navigation aids segment with comparable NDB products targeting civil aviation authorities.
• Saab Sensis / Saab (Indra partnership): Saab, particularly through its Sensis/Indra collaboration, produces ground-based aviation navigation aids including NDBs and related radio navigation infrastructure. Competes for major civil aviation authority contracts for navigation aids similar to SAC's airport deployments.
• Indra Navia (Park Air Systems): Indra Navia (formerly Park Air Systems, prior part of Northrop Grumman) produces NAVAIDs including NDBs, VDF, and airfield systems. Competes directly with SAC in civil aviation navigation aids, particularly with international aviation authorities like BULATSA Bulgaria.

Broad incumbents

• Thales Group: Thales is a broad aerospace incumbent producing avionics, surveillance, and navigation systems including radio navigation aids. While Thales' portfolio spans far beyond NDBs, it competes in the broader navigation aids procurement space where SAC targets civil aviation authorities.
• Honeywell Aerospace: Honeywell is a dominant avionics manufacturer offering navigation and communication equipment as part of a much larger portfolio. Competes with SAC broadly in aviation navigation systems, though Honeywell's focus skews toward newer GNSS-based systems rather than NDBs.
• Leonardo / Selex ES: Leonardo (formerly Selex ES) produces military and civil navigation systems, avionics, and airfield infrastructure. Provides overlapping capabilities with SAC in radio navigation aids, particularly for military and civil aviation customers across Europe.

Emerging players

• Systems Interface (Aerosystem): Systems Interface is a UK-based manufacturer of aviation ground equipment including NDBs and related navigation aids. Competes with SAC primarily in the European civil aviation market with similar low-frequency radio beacon technology.
• Universal Electronics Industries (UEI): Universal Electronics Industries is an Egyptian aviation equipment manufacturer producing NDBs and related airfield navigation aids. Competes with SAC in select emerging markets (Africa/Middle East) where SAC also targets via local distributors.

Others

• Radio Holland: Radio Holland is a maritime electronics distributor and service provider that is one of SAC's key authorized sales and service center partners. Not a direct competitor but a critical channel partner for offshore NDB and DGPS sales across the Netherlands, Middle East, and Singapore.

Regional players

• Tesec (Tokyo Keiki/Tokimec group): Tokimec/Tesec is a Japanese manufacturer of marine and aviation navigation equipment including radio beacons and NDB-like systems. Regional peer in Asian markets where SAC also has authorized service center distribution.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/SoAvionics
• YouTubeyoutube.com/c/Southernavionicscompany
• Facebookfacebook.com/SouthernAvionics
• LinkedInlinkedin.com/company/southern-avionics-company

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

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 Avionics Company