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SIC Ltd

SIC Ltd

SIC Ltd (Swansea Industrial Components Limited) manufactures wiring looms, cable harnesses, cable assemblies, battery cables, control panels, control boxes and box build assemblies from its Swansea site, a family-run business making harnesses since 1964. Certified to ISO 9001:2015 and ISO 14001:2015, UL approved for wiring harness supply and with operators trained to IPC/WHMA-A-620, the company runs Komax automatic crimping lines, processes cable from 36 AWG to 2 AWG and tests every product line before shipment. Box build spans small enclosures to PLC and switchgear panels with packaging and labelling included, supported by prototype and pre-production runs, turnkey material supply, and direct line feed, Kanban, just-in-time and consignment stock delivery. SIC serves more than 100 customers across HVAC, medical, automotive, aerospace and rail sectors.

Box Build Assembly Cable & Wire Assembly Design & Engineering Electromechanical Assembly Systems Integration
Wales
Certifications
ISO 9001 ISO 14001 UL IPC/WHMA-A-620
Services
Cable Assembly Box Build Design Material Management Logistics/Distribution
Testing
High Voltage Testing Functional Testing Component Value Check Visual Inspection
Order Type / Volume
Prototype Low Volume Medium Volume High Volume
Box Build Capabilities
Panel/Cabinet Build Enclosure/Chassis Assembly Electro-Mechanical Assembly System/Product Integration Final Product/System Test Packaging for Shipment
Cable & Harness Assembly Capabilities
Wire Harness Assembly Discrete Cable Assembly Crimping Heat-Shrink/Sleeving Continuity/Electrical Test
Industries Supported
Automotive Aerospace and Defense Medical Industrial Lighting Railway Technology Telecom Energy Building Technology Consumer Electronics Computer Technology Commercial
Component Sourcing / Procurement Model
Turnkey (Full Supply)
Headcount 51-200
Visit Website Send Email
66-70 Morfa Road, Strand, Swansea, SA1 2EF
Last Updated
2026-10-02
SIC Ltd
google maps embed
Company Registration Number 02707045
Companies House URL
Verification History

2 Oct 2026 — Scheduled verification (Lite). No changes.

12 Sep 2026 — Scheduled verification (Max). Added prototype, low- and medium-volume order types; design, material management and logistics services; crimping, heat-shrink and continuity testing; high-voltage, functional, component and visual testing; electro-mechanical assembly; IPC/WHMA-A-620 workmanship; and Lighting, Rail, Telecom, Energy, Building Technology, Consumer Electronics, Computer Technology and Commercial sectors.

12 Sep 2026 — Scheduled verification (Lite). No changes.

9 Sep 2026 — Scheduled verification (Lite). No changes.

6 Sep 2026 — Listing added to EMS Directory, pending verification checks.

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