Finding the right RF cable assembly manufacturer is about more than just cables. You need assemblies that guarantee signal integrity, minimize loss and hold up under the specific conditions of your industry.
The top 10 RF cable assembly manufacturers in this list combine technical expertise, industry certifications and strong supplier partnerships to deliver RF cable assemblies you can trust in any conditions.
While Cloom Tech takes top spot for their focus on custom assemblies, rock-solid global supplier partnerships and fast turnaround times, each company here stands out for their capabilities, reliability and proven quality.
How We Chose RF Cable Assembly Manufacturers
To create this list, we focused on manufacturers with specialized RF production capabilities, not just generic cable suppliers. Each company was evaluated based on its ability to meet the technical, quality and production demands of RF signal transmission:
- Technical Capabilities: We prioritized manufacturers with defined frequency support ranges, tight impedance matching and verified performance in signal loss control and phase stability. Preference was given to those with in-house tools.
- Quality Control: We looked for companies certified to ISO 9001, IATF 16949 and where relevant, AS9100D or ISO 13485, depending on the industry served.
- Production & Customization: Each supplier on this list offers a blend of rapid prototyping, low- to high-volume scalability and custom design support, including connector integration, non-standard material usage and application-specific RF tuning.
- Global Operations: We evaluated the manufacturing footprint, geographic coverage and supply chain resilience of each company. Companies that offer responsive technical support, local presence and reliable documentation infrastructure were given higher consideration.
Top 10 RF Cable Assembly Manufacturers
1. Cloom Tech
Cloom Tech may be a young company compared to some on this list, but they’re already becoming a go-to partner for those who need fully customized RF cable assemblies built to spec.
They don’t supply off-the-shelf cables, but focus instead on high-frequency performance, EMI shielding, and precision impedance matching, with rapid prototyping available in as little as three weeks and end-to-end testing on every build.
Cloom Tech has good working relationships with global suppliers like Molex, TE Connectivity, Future Electronics and Arrow (to name a few), which means you can trust that the quality of your RF cable assembly will be up to the highest standards.
While they don’t provide in-house RF design services, they’re highly effective at executing client-provided drawings with accuracy and transparency.
| Pros | Cons |
|---|---|
| ✅ Equipped to process high-frequency coax with EMI shielding and controlled impedance. | ❌ Don’t offer standard “off-the-shelf” cables, only custom ones. |
| ✅ Micro-crimp tooling supports RF connectors and fine-gauge coax assemblies down to 40 AWG. | ❌ No in-house design services, so you’ll need to provide your own technical drawings. |
| ✅ Access to verified impedance-rated coax types and specialized RF connectors through their global suppliers. |
Key Specs
| Years of Experience: | 9 years (founded 2016) |
|---|---|
| Factories: | Facilities in the US, China and the Philippines. |
| Certifications: |
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2. Amphenol Custom Cable
Amphenol Custom Cable is a big name in the cable assembly world. They’ve been around for over 4 decades, and being part of the Amphenol group, they give you access to one of the biggest selections of RF connectors and coaxial cables on the market, perfect for those with strict specifications.
One of the things that sets them apart from others is their QuickBuild platform, an online configurator that lets you design your own RF cable assemblies quickly and easily. You do need to create an account with them to use it, but it’s a worthwhile option for those who know what they need.
Regardless of what kind of cable assembly you create in the tool (or provide them), they manufacture everything under strict international standards. If you’ve ordered a cable assembly for a high security application, they also have TL9000 and ITAR compliance for your peace of mind.
Aside from their top-class production of completely customized RF cable assembly solutions, they’re also known for their quick turnaround. If you’re looking for a no-hassle, fast RF cable assembly manufacturer, you can’t go wrong with Amphenol Custom Cable.
| Pros | Cons |
|---|---|
| ✅ Broad catalog of cable/connector combinations via QuickBuild (eg. SMA, N, FAKRA, 1.0/2.3) with support up to high RF frequencies. | ❌ Minimum order quantities may apply for certain RF cable types or configurations. |
| ✅ RF lab validation up to 40 GHz with VSWR, insertion loss, PIM, plus environmental and mechanical stress tests. | ❌ Catalog-focused tool may not accommodate ultra-niche connectors or very high-frequency beyond their defined library. |
| ✅ Automated assembly & scalable throughput to maintain consistency and reduce error rates. |
Key Specs
| Years of Experience: | 45 years (started in 1980). |
|---|---|
| Factories: | 38,000 square-foot facility in Tampa, Florida. |
| Certifications: | Production standards and certifications include:
Also TL9000.2008 and ISO 9001:2008 certified. |
3. Meridian Cable Assemblies
Meridian Cable Assemblies concentrates on custom RF/coaxial cable builds, with a huge tool inventory for flexibility. They lean quite heavily toward custom solutions, so they’re an excellent choice if you need something very specific to be manufactured from a drawing, but their catalog includes standard coax options too.
Their process supports custom extrusion, molded components, shielded assemblies and semi-rigid cables. They build connectorized RF assemblies (eg. SMA) to meet strict performance parameters (insertion loss, return loss, phase stability) and apply rigorous testing in their lab.
| Pros | Cons |
|---|---|
| ✅ Maintains one of the industry’s largest tooling inventories (5,000+ molds & tooling) for rapid changeovers and support for overmolded and molded breakouts. | ❌ Around 70% of their cables are custom, so there’s little choice for those who want immediate access to standard cables. |
| ✅Supports conductor sizes from 34 AWG up to 12 AWG within assemblies, allowing mixed-signal and power + RF bundles in one cable line. | |
| ✅ Performs full RF lab validation (eg. VSWR / return loss/insertion loss) and environmental stress screening (temperature, vibration) on finished assemblies. |
Key Specs
| Years of Experience: | 31 years (started in 1994). |
|---|---|
| Factories: | 7,000 square foot facility in St. Augustine, Florida, and 30,000 square-foot ISO 9001:2008 certified facility in Tanggu, China. |
| Certifications: |
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4. RF Industries
RF Industries have been recognized on Forbes’ “100 Best Small Companies” list, so they’re definitely known in the industry for their service and quality. And with more than 40 years of experience and facilities across the USA, they’re trusted by and easily accessible to the American market.
One of the bonuses of working with them is that you’ll have access to a sizable portfolio of parts, including hundreds of different cable types and over 1,500 connector options. This wide selection makes customizing cable assemblies even easier.
All their RF products are RoHS compliant, ISO-certified and produced in UL-recognized facilities. They have IPC-trained technicians managing the assembly from start to finish, so your RF cable assemblies are in good hands.
RF Industries are also known for maintaining a high level of transparency. They regularly share company updates, partnerships, and industry engagement online, giving potential customers insight into their business. This kind of openness indicates that they’re a trustworthy company that’s worth partnering with.
| Pros | Cons |
|---|---|
| ✅ Extensive product portfolio with over 1,500 connectors and hundreds of cable types available for your custom RF cable assemblies. | ❌ Extended warranty coverage applies mainly to fiber products, not RF assemblies. |
| ✅ 100% PIM testing with serial-numbered performance reporting (via PIM Tracker™) ensures assemblies meet low intermodulation standards. | ❌ For unusual RF components or dielectric materials, additional sourcing or lead-time may be required. |
| ✅ Supports a broad frequency portfolio: assemblies and components rated up to 40 GHz (VSWR, insertion loss, etc.) |
Key Specs
| Years of Experience: | 46 years (founded in 1979). |
|---|---|
| Factories: | An 86,952 square foot facility in San Diego, California (corporate headquarters and advanced production facility), additional operations located in Long Island, New York; Milford, Connecticut; North Kingstown, Rhode Island; Parsippany, New Jersey |
| Certifications: |
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5. Smiths Interconnect (Florida RF)
The Smiths legacy goes back more than 170 years, which means they’ve got more experience and expertise than most other RF cable assembly manufacturers. They also have facilities in 12 different countries, so they’re able to provide fast delivery and localized support for their customers.
Smiths Interconnect’s RF business, including the Florida RF line, is known for advanced coaxial cable series such as Lab‑Flex, Mini‑Flex, Titan‑Flex and especially SpaceNXT, engineered for space and extreme environment applications.
The SpaceNXT QT series is qualified to meet outgassing standards (ASTM E595), supports mode-free performance up to 110 GHz (depending on configuration), and is designed for extreme temperature tolerance, minimal phase shift and high shielding effectiveness (greater than –90 dB). The Q series supports up to 40 GHz, uses low-loss ePTFE dielectrics, and provides 100 % flight test data.
| Pros | Cons |
|---|---|
| ✅ Phase-stable coax with minimal electrical length change across temperature extremes. | ❌ With multiple cable series, customers may find it challenging to select the optimal cable solution without help. |
| ✅ High-frequency capability up to 110 GHz in SpaceNXT QT (depending on cable/connector combination). |
Key Specs
| Years of Experience: | 174 years of corporate heritage |
|---|---|
| Factories: |
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| Certifications: |
They also meet NASA/ESA outgassing specifications when tested per ASTM E595 for space applications, and offer space-grade/ESA/ESCC qualified options for specialized applications. |
6. Star Engineering, Inc
Star Engineering has been manufacturing high-performance RF cable assemblies for over 4 decades in the transit, industrial, military and marine sectors.
They produce assemblies in flexible, low-loss, semi-rigid and conformable formats to match customer-provided specifications. Their organization operates under ISO 9001:2015, with IPC‑610 and IPC‑620 compliance for cable and wire workmanship.
Because Star works closely with clients throughout the development process, they are especially well-suited to custom or niche RF builds where design feedback, iterative adjustments, and traceability matter most.
| Pros | Cons |
|---|---|
| ✅ Offers flexible and semi-rigid coaxial assemblies with a wide connector compatibility portfolio (BNC, SMA, SMB, TNC, etc.) | ❌ US-based operation may limit their ability to serve international customers or provide localized support worldwide. |
| ✅ Maintains control of custom materials and geometries, enabling matching for impedance, mechanical constraints and environmental demands for each run. | ❌ Public information does not explicitly disclose their frequency ceilings, phase stability performance, or shielding performance under extreme environmental stress. |
| ✅ Strong traceability and documented compliant manufacturing, which supports audits and high-reliability deployments |
Key Specs
| Years of Experience: | 44 to 45 years of experience (since 1980) |
|---|---|
| Factories: | Specific facility details such as square footage, exact location, or detailed manufacturing specifications are not clearly provided. |
| Certifications: | ISO 9001:2008 certified. |
7. Y.C. Cable
Y.C. Cable maintains facilities in Fremont, California, and China, allowing them to scale between low- and high-volume RF cable production easily. Their RF assemblies are all tested using advanced systems for parameters such as return loss, insertion loss and impedance compliance before shipment.
They support a broad set of certifications across industries and maintain membership in industry bodies like WHMA and BICSI. Their operations span medical, automotive, telecom and industrial applications.
While their scale and OEM orientation show strengths, there’s not a lot of information about their frequency limits, phase stability or shielding performance for extreme‑environment RF use.
| Pros | Cons |
|---|---|
| ✅ Uses Agilent network analyzers for 100% RF performance validation (return loss, insertion loss, impedance) on every assembly. | ❌ Mainly focused on OEM contracts, which may not suit smaller one-off orders. |
| ✅ Designs and builds coax assemblies for 50 Ω, 75 Ω, and 90 Ω systems with controlled impedance paths and multi-layer shielding (braid + foil). | |
| ✅ Supports a wide connector portfolio (FAKRA, I‑PEX, SMA, BNC, N‑type, etc.) across automotive, telecom, and industrial markets. |
Key Specs
| Years of Experience: | 40 years (since 1985) |
|---|---|
| Factories: | Factories in Fremont, California and China with state-of-the-art manufacturing processes and machinery. |
| Certifications: | Quality Management:
Industry Standards:
Professional Memberships:
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8. Winchester Interconnect
Winchester Interconnect is an RF cable assembly manufacturer often chosen by aerospace, defense, medical and industrial companies, where reliability is non-negotiable. They design and manufacture semi-rigid, phase-stable and high-power coax solutions.
Their PhaseTite® family delivers minimized phase drift across temperature using proprietary dielectric materials. Their TruTest® / DynaTest® series is calibrated for repeatable, low-loss measurements in lab and field settings.
Having facilities across North America, Mexico, Malaysia and China allows them to combine global reach with flexible production capacity. They also run every cable assembly through extensive testing to make sure each one meets the necessary performance requirements before sending them out to customers.
| Pros | Cons |
|---|---|
| ✅ Supports RF performance to 110 GHz, covering mmWave applications. | ❌ Winchester’s large portfolio of brand names may lead to confusion for customers about which brand or product line best suits specific needs. |
| ✅ Built-in phase-stable architectures using proprietary dielectric (PhaseTite®) to minimize drift over temperature swings. | |
| ✅ Offers precision test-grade assemblies (TruTest/DynaTest) with very low VSWR and insertion loss for calibration or troubleshooting use. |
Key Specs
| Years of Experience: | 84 years of experience (since 1941) |
|---|---|
| Factories: | Facilities in Connecticut, Massachusetts, South Carolina, Sonora Mexico, Malaysia and China. |
| Certifications: |
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9. Carrio Cabling
Carrio Cabling is proud to be a 100% USA-made RF cable assembly manufacturer. They operate out of a single facility (in Colorado Springs), but don’t think this means they’re limited in their production scope.
Their manufacturing capabilities include overmolding, custom mold making, tooling, and stereolithography for prototyping. All finished RF cables undergo Agilent network analyzer testing before shipment to validate performance.
While they run everything from a single U.S. facility, their tight process control, vertical integration, and rapid prototyping capability make them a strong option for domestic clients seeking RF assemblies with full traceability and quality oversight.
| Pros | Cons |
|---|---|
| ✅ Supports multi-dielectric overmolding and molded transitions in-house to enhance environmental sealing and mechanical robustness. | ❌ Operate from a single location, which may limit their production capacity and geographic service coverage. |
| ✅ Uses programmable multi-level strippers (eg. Schleuniger) for precise cutting and prep across coax diameters 0.05” to 0.75”. | |
| ✅ Designs and fabricates custom male/female terminals and hardware in brass, copper, stainless steel, aluminum (OD from 0.020” to 1.25”) using CNC and screw machines. |
Key Specs
| Years of Experience: | 37 years (since 1988). |
|---|---|
| Factories: | Facility located in Colorado Springs. |
| Certifications: | Quality Management:
Industry Standards:
Government/Defense:
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10. Rosenberger
Rosenberger has been around since 1958 and were actually the first of the RF cable assembly manufacturers to receive ISO/TS 16949 certification (now called IATF 16949). Today, the company is one of the most qualified RF assembly partners worldwide.
They design and produce a full spectrum of cable types (flexible, semi-flex, semi-rigid, armored and phase-matched assemblies) along with test-grade coax for VNA/metrology use. They can produce standard cable assemblies, but they’re great at more complex customer-specific designs.
You’ll find them across the world, with facilities across the US (north and south), Europe and Asia. Their combination of global reach and extensive certifications makes them an excellent choice if you need reliable, sure-quality RF cable assemblies.
| Pros | Cons |
|---|---|
| ✅ Develops and manufactures RF cable assemblies with a portfolio from DC to 110 GHz, including all common RF cable assemblies and customer specific solutions. | ❌ As a world-leading manufacturer with extensive certifications and high-end capabilities, they’re likely to have premium pricing that may chase away budget-conscious customers. |
| ✅ Supports phase-stable coaxial designs and matched-pair assemblies with very low phase drift over environmental changes | |
| ✅ Delivers armored and ruggedized variants that sustain crush loads up to 1,000 N while preserving RF performance. |
Key Specs
| Years of Experience: | 67 years of experience (since 1958) |
|---|---|
| Factories: |
|
| Certifications: | Automotive:
Aerospace:
Quality and Environmental:
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Final Thoughts
Finding the right RF cable assembly manufacturer comes down to matching their strengths with your requirements for any given project. If you need global scale and premium certifications, companies like Rosenberger and Smiths Interconnect stand out. For US-based control and personalized service, Carrio Cabling or Star Engineering may be the right fit.
And for cost-effective custom builds backed by strong supplier networks, Cloom Tech offers a compelling option. Get in touch with us for a free quote on your project and let’s take you from concept to reality.
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