Custom Electrical Cable Assemblies,
Built for Complexity
From factory floors to military fields, Extrema Cables delivers precision-built wiring harnesses and custom assemblies — designed to your specs, manufactured with care, and priced for real-world budgets.
Stop Letting Cable Suppliers
Delay Your Build
You’re down to the final components. But vague lead times, inflated pricing, and vendors who avoid complex or low-volume specs are holding everything up. It’s frustrating—and it’s not how engineering should work.
Built for complexity and custom specs
Ideal for 20–200 unit quantities
Transparent quoting + realistic timelines
Military-grade experience and precision
POPULAR CABLE NAME HERE
POPULAR CABLE NAME HERE
POPULAR CABLE NAME HERE
POPULAR CABLE NAME HERE
POPULAR CABLE NAME HERE
Custom Assemblies for Complex Applications
We specialize in low- to mid-volume custom electrical cable assemblies and wiring harnesses designed for performance in demanding environments. Whether you need a 500-foot trunk with M12 drops or a signal cable with embedded electronics, we’ve done it — and we’re ready to do it again.
Every assembly is made to spec, in-house, by trained technicians — and often to military-level standards.
We’re Built for Precision, Not Mass Production
If you’re looking for high-volume, commodity cables turned overnight, we’re probably not your shop. But if you need a complex build done right the first time — and you’re okay with realistic lead times — then you’re exactly who we’re built to serve.
A Clear Process. No Surprises.
Because everything we build is custom, we take the time to get it right—
from the first quote to final delivery. Here’s how we work:
Send Us Your Specs
Send us your drawings, part requirements, or conceptual notes — we’ll review everything thoroughly.
Receive a Custom Quote
Quotes take 2–3 weeks. That’s because we analyze every detail to ensure your cable is feasible, buildable, and fairly priced.
Build & Delivery
Once approved, production takes 90–120 days, assuming all parts are available. We’ll keep you in the loop every step of the way.