AS9100D Certified Cable Assemblies from a Trusted U.S. Manufacturer
Custom Cable Assemblies
Request a QuoteSTI-CO is a U.S.-based cable assembly and harness manufacturer specializing in custom-built solutions for mission-critical applications.
With decades of expertise, we design and manufacture high-performance cable assemblies engineered for aerospace, defense, public safety, transportation, and commercial IoT sectors. Whether you are integrating new technology into existing systems, replacing cabling, or building something new, we can help design custom cables assemblies that meet your cable length, connector, and performance requirements.
Consulting & Custom Cable Design
Kitting Services
Labeling Services
Build to Print Services
Our Services
Our Cables and Connectors
STI-CO® Coaxial Connectors and Their Frequency Ranges
RF Connectors | Common Use |
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UHF | Mostly used in older communications systems or short-range radio applications. |
F-Type | Common for cable television and satellite systems. |
FME | Common in automotive, GPS, and mobile communications. |
Mini UHF | Often found in mobile radios, radio transmitters, and small antennas. |
BNC | Test equipment, video and low-frequency communications |
SMB | Compact connector, used in wireless systems, GPS, and other low to medium frequency applications. |
7/16 DIN | Used for high-power, high-frequency communications, often in telecom and broadcasting. |
MMCX | Used in compact, low-profile connections, often found in wireless devices like antennas and GPS |
TNC | Similar to BNC, but with threaded coupling for improved performance. Common in military and aerospace. |
N-Type | Often used for base station antennas, broadcast equipment, and high-power systems. |
SMA | Used in RF communication, antennas, and Wi-Fi applications. |
QMA | Used in RF communication, antennas, and Wi-Fi applications. |
Why Us
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Comprehensive Transmission Solutions
Coaxial, flexible and hard-line coax, data, power, and wire harnesses.
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Over-Mold & Build-to-Print
Consulting and custom cable engineering built to your precise requirements.
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Quality Assurance
Rigorous testing protocols and certifications including AS9100 (target March 2025), ISO 9001:2015, ITAR, IPC/WHMA-A-620.
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Traceability & Custom Labeling
Full traceability, serialized lot control, and custom labeling for streamlined inventory and identification.
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Advanced Manufacturing
Expanded, state-of-state-of-the-art facility with CNC capabilities for rapid prototyping and secure supply chain.
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CAGE
Code: 55408 -
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05-798-1748
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AS9100D
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334220, 423690, 423510, 541380
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SAM
Registered System for Award Management
Our Process:
From Design to Delivery

1. Design
Our engineering team, led by industry veterans, specializes in creating bespoke cable solutions that not only meet but exceed expectations.
- Build to customer supplied prints
- Create new CAD prints per customer specifications
- New designs created from sample cables
- Review existing designs for electrical compliance

2. Manufacturing
STI-CO’s cutting-edge manufacturing ensures meticulous fabrication, our capabilities ensure that each product delivers exceptional performance, durability, and compatibility.
- New over-mold capability for cable terminations
- Automated cable processing center
- Custom labeling / marking

3. Quality
STI-CO’s builds quality into all our products with rigorous testing performed throughout the fabrication process.
- Pull testing to ensure proper fabrication
- Automated testing for multi-conductor wiring harness
- High voltage dielectric withstand (DW) testing
- Insulation resistance (IR) testing
- RF testing for Isolation Insertion Loss
- MIL traceability tracking
Industries We Serve
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Military Cable Assemblies
From military electronics and drones to secure communications and tactical systems, STI-CO® delivers mission-critical cable assemblies built to perform. Our military-grade, high reliability RF cable assemblies are built to withstand the harshest environmental conditions to maintain clear communication and reliable field performance. We are a Registered US Government Contractor, Certified Commercial and Government Entity – Cage Code 55408, and UL, IPC, and ISO 9001:2015 certified.
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Transportation Cable Assemblies
From train control systems to onboard communications and power distribution, STI-CO® delivers high-reliability industrial cable assemblies that keep transit systems running safely and efficiently. Public transportation and rail systems require rugged, high-performance cable assemblies that ensure safe, uninterrupted operation in demanding environments. We specialize in custom-engineered cable and harness assemblies designed to withstand constant vibration, extreme weather, and electrical interference while maintaining reliable connectivity. We are ISO 9001:2015 certified and our connectors meet EN45545 standards.
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