Design consultancy
End-to-end wiring harness design — schematic, routing, manufacturability, BOM, spec.
Explore service
Wiring harness design, delivered in hours, not weeks.
Independent UK design consultancy for automotive (EDS), motorsport (loom) and off-highway harness programmes. Bespoke in-house software, flexible CAD tooling, manufacturable on day one.
- UK-based · Suffolk
- Manufacturer-neutral by design
- Bespoke harness CAD software
- Build-ready deliverables
Signal Red Consulting is a UK wiring harness design consultancy. We design the schematic, the routing, the 3D model, the bill of materials, the spec sheet and the end-of-line test plan — packaged for whichever manufacturer you choose to build with. We do not own a build shop. We are deliberately, structurally neutral on supply.
The reason customers come to us is speed. Bespoke in-house tooling collapses the longest steps in harness design — routing, BOM generation, spec sheets, test feature setup — from weeks into hours. The reason customers stay is that the work is build-ready when it leaves us. Production drawings, costed BOM, spec, test plan, all in the format your build partner already runs on.
Services
Five services. One unified design pipeline.
Pick the engagement that fits — full consultancy, 3D CAD only, outsourced programme, engineer on secondment, or HV / battery harness.
3D CAD modelling
Full 3D harness models for packaging studies, clash detection and assembly drawings.
Explore service
Outsourced design
Run your harness design programme from our team — costed, scoped, delivered on a fixed timeline.
Explore service
Engineer on secondment
Place an experienced wiring engineer in your team — on-site or remote, by the day or by the month.
Explore service
EV & battery harness
High-voltage (HV) harness design for EV powertrain and battery pack interconnect.
Explore service
Sectors
Where we work
Deep focus in three sectors — automotive, motorsport, off-highway. Aerospace, marine and defence served on request behind a Tier-1's accreditations.
Automotive
OEM and tier-1 wiring harness (EDS) design — passenger vehicles, light commercials, prototypes.
See sector
Motorsport
Race wiring looms — fast turnaround on bespoke builds for series cars, prototypes and one-offs.
See sector
Off-Highway
Construction, agricultural and heavy machinery harness design — JCB-class procurement language, full lifecycle support.
See sector
Why us
The wedge: bespoke software plus design-only neutrality.
The software is the speed story. The neutrality is the trust story. Both matter.
-
Bespoke design software
In-house tooling collapses routing, BOM, spec sheets and test setup from weeks into hours.
-
Tool-flexible
Siemens Capital, Zuken E3, Creo, NX or your in-house CAD — we deliver inside your ecosystem, not ours.
-
Build-partner neutral
Design-only by choice. We hand the pack to whichever manufacturer you choose — or help you tender.
-
Speed differential
Brief on Monday, first-pass scope back by Thursday. Real timeline, not a marketing number.
Project types
The work, anonymised.
A snapshot of the harness programmes our pipeline is built for. Named case studies publish only with explicit client permission.
Engine-bay EDS — Tier 1 OEM
Full schematic, 3D routing, BOM and manufacturability check for an internal-combustion engine bay loom — packaged for the OEM's existing build partner.
EV battery interconnect — automotive OEM
High-voltage and low-voltage harness design for a traction battery pack, including spec sheets and end-of-line test plan for the chosen contract manufacturer.
Motorsport loom — tier-1 race programme
Lightweight loom design, schematic-to-3D pipeline and BOM, sized to programme weight targets and routed against the chassis 3D model.
Representative project types. Client-named case studies publish only with explicit permission.
How we work
From brief to sign-off in four steps.
- 01
Brief
Scope in plain English. Vehicle, programme, timing, deliverables.
- 02
Scope
Costed plan and timeline back within two working days.
- 03
Design
Schematic → 3D routing → BOM, all in one pipeline.
- 04
Sign-off
Manufacturability-checked, packaged for your build partner.
Ready when you are
Send us your scope.
Costed plan and timeline back within two working days. No obligation, mutual NDA available.