Sealevel Systems
Sealevel Systems designs and manufactures ruggedized embedded computers, industrial I/O and data acquisition modules, tactical communications hardware, and edge AI platforms for defense, aerospace, automation, and industrial customers, with vertically integrated US manufacturing and 350+ standard SKUs.
- Company typePrivate
- Founded1986
- HeadquartersLiberty, United States
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What Sealevel Systems does
Sealevel Systems, Inc. is a privately held industrial hardware company founded in 1986 and headquartered in Liberty, South Carolina. The company designs, engineers, and manufactures ruggedized embedded computers, data acquisition (DAQ) modules, tactical communications products, and edge AI platforms, organized across sub-brands including Relio, Torvex, SeaI/O, SeaNET, SeaPAC, HazPAC, and Flexio. Its portfolio spans more than 350 standard SKUs plus custom-engineered solutions, with technical differentiators in COM Express modular architecture, MIL-STD-1553 FPGA-based tactical interfaces, optically isolated I/O, and SWaP-C2-constrained edge designs built to military shock, vibration, and temperature specifications.
The business makes money through two primary streams: catalog hardware sales of standard I/O, DAQ, USB, and PCI/PCIe products at MSRPs ranging from roughly $79 to $522, and quote-based sales of higher-value embedded computers, rugged panel PCs, and custom engineering services typically structured as multi-year program contracts. Distribution is direct via the company website (e-commerce plus Request a Quote), phone sales, and field engagement at major industry trade shows including Automate and embedded world. Named program customers include the FAA (custom serial computing for nationwide flight data storage), a defense prime contractor (Boeing F-15EX Eagle II avionics test), and a public safety alerting platform vendor, alongside a long tail of industrial automation, energy, medical, transportation, and smart city buyers.
Vertically integrated US manufacturing under AS9100D and ISO 9001:2015 certifications is central to the value proposition, particularly for defense and aerospace buyers. Recent strategic emphasis has shifted toward edge AI (the NVIDIA Jetson-based Torvex platform), predictive maintenance themes tied to multi-million-dollar hourly downtime costs, and selective international trade show expansion (embedded world Germany 2026). Ownership is independent with no disclosed institutional backing, and there are no reported M&A, funding events, or management transitions in the input data.
Sealevel Systems firmographics
Firmographics- Name
- Sealevel Systems
- Legal name
- Sealevel Systems, Inc.
- Website
- https://sealevel.com
- Company type
- Private
- Founded year
- 1986
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Sealevel Systems designs and manufactures ruggedized embedded computers, industrial I/O and data acquisition modules, tactical communications hardware, and edge AI platforms for defense, aerospace, automation, and industrial customers, with vertically integrated US manufacturing and 350+ standard SKUs.
- Ownership category
- akta.pro rank
Sealevel Systems industry classification
Industry- Product category
- Industrial Embedded Computing Hardware
- NAICS
- Computer and Peripheral Equipment Manufacturing (3341), Computer Terminal and Other Computer Peripheral Equipment Manufacturing (334118), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Other Communications Equipment Manufacturing (33429)
- SIC
- Industrial Instruments For Measurement, Display, And Control (3823), Computer Peripheral Equipment, Nec (3577), Communications Equipment, Nec (3669)
- akta.pro primary industry
- Secure Communications, Cryptography & Key Management Systems (IMABAOAK)
Keywords
Where Sealevel Systems is headquartered
LocationHeadquarters
- HQ city
- Liberty
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Sealevel Systems business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Hardware Product Sales: Sale of standard and custom industrial computing hardware, embedded computers, data acquisition devices, serial adapters, USB products, and tactical communications equipment. Products are sold directly and through distribution with pricing ranging from tens to hundreds of dollars per unit.
- Custom Solutions and Engineering Services: Custom hardware development and engineering services for unique problems across industries and platforms. The company develops solutions for specific customer requirements with full lifecycle support from concept to production.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Standard Industrial I/O and Connectivity Products |
| Other | Multi-year contract | Embedded Computers and Panel PCs |
| Other | Multi-year contract | Custom Engineering Solutions |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels5 records
Sealevel Systems product offering
Product offeringCore offering
Sealevel Systems designs, manufactures, and sells industrial embedded computing hardware, data acquisition (DAQ) devices, rugged panel PCs, tactical communications equipment, and USB/PCI/PCIe connectivity adapters for defense, aerospace, automation, and industrial customers. The company also provides custom hardware engineering and full-lifecycle manufacturing services for unique application requirements. Products are built to meet military and aerospace specifications (MIL-STD, AS9100D, ISO 9001:2015) and are produced at a vertically integrated U.S. facility in South Carolina.
Product overview
Sealevel Systems is an industrial hardware company offering over 350 standard computing and industrial I/O products, organized into several interconnected product families. The portfolio is anchored by embedded computing products (Relio R1 family of rugged embedded computers including Relio R1 Edge, Relio R1 Rugged, and Relio R1 HPC+; SeaPAC and HazPAC rugged panel PCs; Flexio fanless industrial computers) and data acquisition products (SeaI/O modules supporting RS-232, RS-485, USB, Ethernet, and wireless interfaces; eI/O Ethernet DAQ devices). Additional product families include tactical communications (MIL-STD-1553 solutions, sync serial radio adapters), Ethernet servers and adapters, USB devices and isolators, and PCI/PCIe expansion cards. The company also offers NVIDIA Jetson-based edge AI platforms (Torvex) for harsh environment AI/ML processing. Products are designed for modularity and SWaP-C2 optimization, with computer-on-module carrier boards enabling customization.
Differentiator
Problem solved
Functional benefit
Brands
- SeaI/O: SeaI/O and SeaNET I/O solutions for industrial data acquisition and control.
- SeaNET
- Relio
- Torvex
- SeaPAC
- HazPAC
- Flexio
- SeaLINK+
- SeaDAC
- SeaLATCH
- SeaISO
- eI/O
Products and services
- Relio R1 Family of Rugged Embedded Computers A family of rugged embedded computers including Relio R1 Edge, Relio R1 Rugged, Relio R1 HPC+, and Relio R1 Industrial variants, designed for demanding industrial, aerospace, and defense applications requiring fanless, solid-state operation, extended temperature and vibration tolerances, and configurable I/O.
- SeaPAC Rugged Panel PCs Rugged touchscreen flat panel computers combining Relio embedded computer durability with resistive touch screens in sizes from 6.5" to 17", designed for industrial environments.
- HazPAC Explosion-Proof Rugged Panel PCs Rugged panel PCs certified to ATEX, IECEx, and Class I Division 2 (Groups A, B, C, D, T4) standards, designed for the harshest environments including hazardous and explosive atmospheres.
- Flexio Fanless Industrial Embedded Computers Fanless industrial embedded computers with solid-state designs, robust I/O options, and extended temperature tolerances, available with Intel Atom and Intel Core i5 processors.
- Torvex Edge AI Platform An NVIDIA Jetson-based edge AI platform that delivers AI/ML processing capabilities at the edge for industrial and defense applications in harsh environments.
- SeaI/O Data Acquisition Modules Family of data acquisition modules supporting RS-232, RS-485, USB, Ethernet, and wireless Ethernet interfaces, with optically isolated inputs, Reed and Form C relay outputs, TTL interfaces, and A/D and D/A functionality for industrial monitoring and control.
- SeaNET Ethernet I/O Solutions Ethernet-based I/O solutions including Modbus TCP interfaces for connecting to Ethernet networks and controlling digital and analog signals remotely.
- eI/O Ethernet Modbus TCP DAQ Devices Ethernet-based data acquisition devices supporting Modbus TCP with various configurations including digital I/O, analog inputs, relay outputs, and PoE options.
- SeaDAC USB Data Acquisition Devices USB data acquisition devices with isolated inputs and Form C relay outputs, supporting configurations such as 16 isolated inputs and 8 Form C relays for industrial control applications.
- SeaDAC Lite USB Relay Modules USB-to-relay output modules providing Form C relay outputs for controlling external devices via USB connection.
- SeaLINK+ USB to Serial Adapters Family of rugged USB to serial adapters for RS-232, RS-422, and RS-485 connections, including DB9 and other connector options for industrial connectivity.
- SeaLATCH Locking USB Cables and Adapters Locking USB cables and panel mount adapters providing secure, high-retention USB connections for industrial environments.
- SeaISO USB Isolators USB 3.0 isolators providing electrical isolation to protect equipment from ground loops and voltage transients in industrial environments.
- COM Express Carrier Boards Computer-on-Module carrier boards supporting COM Express Type 6 architecture, including Type 6 Compact, Type 6 ATX, and evaluation boards, that reduce complexity, cost, and time required for custom computer system design.
- MIL-STD-1553 Tactical Communications Solutions MIL-STD-1553 solutions using software IP cores integrated into FPGA devices for tactical communication applications in military and aerospace systems.
- Sync Serial Radio Adapters Synchronous serial interfaces available in PCI, PCIe, and ACC-188 form factors for radio and tactical communication applications.
- PCIe Digital I/O Cards PCI Express digital I/O cards providing isolated inputs and Reed Relay outputs for industrial control and data acquisition applications.
- PCI Digital I/O Cards PCI form-factor digital I/O cards including asynchronous and synchronous serial adapters and digital I/O cards for legacy industrial applications.
- PCIe Synchronous Serial Adapters PCI Express synchronous serial adapters for high-speed serial communication in industrial and tactical applications.
- SBC-R9 ARM-Based Embedded RISC Computer ARM-based embedded RISC computer available as a quickstart kit with 64MB SDRAM and 256MB Flash for low-power industrial embedded applications.
- Custom Hardware Engineering and Manufacturing Services Custom hardware development and engineering services that design and manufacture solutions for unique customer requirements across industries, with full lifecycle support from concept through production.
Quantifiable outcome
- Unplanned stoppages can cost manufacturers up to $2.3M per hour; predictive maintenance is becoming a strategic imperative
Companies that use Sealevel Systems
Customer profileNamed customers3 records
Segments9 records
Ideal customer profiles4 records
Sealevel Systems technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability4 records
Feature7 records
Sealevel Systems partnerships and signals
Strategic signalScale indicators4 records
Recent moves6 records
Expansion highlights5 records
Sealevel Systems competitors and assessment
Company assessmentBroad incumbents
- National Instruments (NI, now part of Emerson): NI is a long-established leader in data acquisition, test and measurement, and industrial I/O, directly comparable to Sealevel's SeaI/O and SeaDAC DAQ lines. Now backed by Emerson, it is a much larger incumbent with broader catalog and global reach.
- Curtiss-Wright Defense Solutions: Curtiss-Wright supplies rugged COTS computing, secure communications, and defense electronics for aerospace and military programs. Comparable to Sealevel's MIL-STD-1553, Relio R1 Rugged, and HazPAC offerings but at much greater scale and program depth.
Direct peers
- Advantech: Advantech is a major global manufacturer of industrial embedded computers, panel PCs, and DAQ modules. It overlaps with Sealevel's Relio R1, SeaPAC, and Flexio product lines across factory automation and edge computing.
- Kontron: Kontron designs and manufactures embedded computing platforms, COM Express modules, and rugged systems for industrial and defense markets, directly comparable to Sealevel's Relio R1 family and COM Express carrier boards.
- ADLINK Technology: ADLINK produces embedded computing modules, edge AI platforms, and DAQ products for industrial automation, transportation, and defense. It overlaps with Sealevel's Torvex edge AI, Relio R1, and SeaI/O portfolio.
- VersaLogic: VersaLogic designs and manufactures rugged embedded computers for industrial, medical, and defense applications, with a similar focus on extended temperature, shock/vibration tolerance, and long-lifecycle support as Sealevel's Relio R1 and Flexio lines.
- Crystal Group: Crystal Group provides rugged servers, embedded computers, and edge AI platforms for military, aerospace, and industrial customers, comparable to Sealevel's MIL-STD rugged Relio R1 HPC+ and Torvex offerings.
Emerging players
- Diamond Systems: Diamond Systems specializes in rugged embedded single-board computers, DAQ, and COM-based systems for industrial and defense OEMs, comparable in scope to Sealevel's Relio and SeaI/O families but with a smaller catalog and customer base.
- AAEON Technology: AAEON designs industrial motherboards, embedded platforms, and edge AI systems, comparable to Sealevel's Flexio, Relio R1, and Torvex product families across factory automation and edge computing.
- WinSystems: WinSystems produces embedded single-board computers and rugged industrial PCs for harsh-environment applications, overlapping with Sealevel's SBC-R9 and Relio R1 Industrial product lines.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Sealevel Systems social profiles
Digital presenceSealevel Systems financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sealevel Systems leadership team
Management profileNumber of profiles
Profiles3 records
Sealevel Systems funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sealevel Systems M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sealevel Systems
What does Sealevel Systems do?
Sealevel Systems designs, manufactures, and sells industrial embedded computing hardware, data acquisition (DAQ) devices, rugged panel PCs, tactical communications equipment, and USB/PCI/PCIe connectivity adapters for defense, aerospace, automation, and industrial customers. The company also provides custom hardware engineering and full-lifecycle manufacturing services for unique application requirements. Products are built to meet military and aerospace specifications (MIL-STD, AS9100D, ISO 9001:2015) and are produced at a vertically integrated U.S. facility in South Carolina.
Is Sealevel Systems a public or private company?
Sealevel Systems is a private company. It is classified as family owned and is currently operating.
When was Sealevel Systems founded?
Sealevel Systems was founded in 1986. It employs 51 to 100 people.
Where is Sealevel Systems based?
Sealevel Systems is headquartered in Liberty, United States, in the North America region.
How does Sealevel Systems make money?
Two revenue lines are on record. Hardware Product Sales are the primary driver. The others are custom Solutions and Engineering Services.
Who are Sealevel Systems's main competitors?
Broad incumbents on record are National Instruments (NI, now part of Emerson) and Curtiss-Wright Defense Solutions. Direct peers are Advantech, Kontron, ADLINK Technology, VersaLogic and Crystal Group. Emerging players are Diamond Systems, AAEON Technology and WinSystems.
Does Sealevel Systems have an API?
No public API is recorded for Sealevel Systems.
What industry is Sealevel Systems in?
Sealevel Systems's product category is Industrial Embedded Computing Hardware. Its primary akta.pro industry code is IMABAOAK, Secure Communications, Cryptography & Key Management Systems. Its NAICS code is 3341 and its SIC code is 3823.