What Sumitomo Electric Bordnetze does

Sumitomo Electric Bordnetze SE (SEBN) is a Tier 1 automotive supplier headquartered in Wolfsburg-Hattorf, Germany, that designs, develops and manufactures customer-specific automotive wiring harness systems and related electrical components. The company was founded in 1986 as Volkswagen Bordnetze GmbH, a joint venture between Volkswagen AG and Siemens AG, and was acquired in 2006 by Sumitomo Electric Industries and Sumitomo Wiring Systems, converting to a German AG in 2015 and to a European Societas Europaea in 2016. SEBN operates approximately 39 manufacturing and logistics locations across 13 countries and employs roughly 36,000 people globally, with major production concentrations in Germany, Morocco (approximately 10,000 staff across Tangier and Salé), Poland, Romania, Ukraine, Bulgaria, Slovakia, Moldova, China, Tunisia, Spain and Mexico.

SEBN's product portfolio centers on two categories: cable harnesses (the core product, including conventional harnesses, high-voltage harnesses for electric vehicles, zonal architecture harnesses, and optical fiber harnesses for in-vehicle data transmission) and a broad components portfolio spanning HV connectors (PT502, TKK, SUHV C280-1, Socket Type), charging inlets supporting all major global standards (CCS1, CHAdeMo, GB/T, Type 1, Type 2), ECU connectors (Microflex, 93-way, HPC1), miniaturized 0.5mm terminal systems, and flexible printed circuits/flat cables. The company offers full-service capability from concept development through series production and sequence-precise just-in-time delivery to OEM assembly lines.

SEBN generates revenue through long-term B2B supply contracts with automotive OEMs, primarily VW Group entities (VW, Audi, SEAT, Škoda, Bentley, Bugatti, Porsche, VW Commercial Vehicles, VW Group China), with additional business from Mercedes-Benz, Ford and Lucid Motors. Pricing is contract-based and not publicly disclosed. The go-to-market is enterprise field sales with deep engineering collaboration on vehicle programs from early concept. SEBN holds ISO 14001 environmental certification across all locations and TISAX information security certification as a standard requirement for automotive supplier data exchange.

Name

Sumitomo Electric Bordnetze

Legal name

Sumitomo Electric Bordnetze SE

Website

https://sebn.com

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Sumitomo Electric Bordnetze SE is a Tier 1 automotive supplier that designs and manufactures customized wiring harness systems and electrical components for OEMs, primarily VW Group, across 39 plants in 13 countries with approximately 36,000 employees.

Ownership category

akta.pro rank

Product category

Automotive Wiring Harness Systems

NAICS

Motor Vehicle Electrical and Electronic Equipment Manufacturing (336320), Electrical Equipment Manufacturing (33531), Communication and Energy Wire and Cable Manufacturing (33592)

SIC

Electronic Connectors (3678), Electronic Components & Accessories (3670), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Vehicle Wiring Harnesses & Cable Assemblies Manufacturing (IMACAJAA)

akta.pro secondary industries

High-Voltage Wiring, Connectors & Busbars Manufacturing (IMACACAF), Automotive E/E Architecture Components Manufacturing (Domain/Zonal Controllers, Gateways, Network Switches) (IMACAJAI), Cable Assemblies & Wire Harnesses (HDAHAOAB)

Keywords

• Automotive wiring harnesses
• Cable harness systems
• High-voltage connectors
• EV charging inlets
• Automotive electrical components

Headquarters

HQ city

Wolfsburg

HQ country

Germany

HQ region

Europe

Offices31 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D

Revenue model

1. Wiring Harness Manufacturing and Sales: Development and production of customer-specific wiring harnesses for a wide range of automobiles, from concept to series production to just-in-time delivery to customers. Revenue is generated through long-term supply contracts with automotive OEMs.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

SEBN develops and manufactures customer-specific wiring harness (cable harness) systems and electrical/electronic components for a broad range of automobiles, from concept development through series production to just-in-time, sequence-precise delivery to OEM production sites. The portfolio spans high-voltage wiring harnesses and connectors for EVs, ECU connectors, charging inlets (CCS1, CHAdeMo, GB-T, Type 1/2), miniaturized terminal systems, automotive FPC/FFC flexible circuits, optical wiring harnesses, and zonal wiring harness architectures for next-generation vehicle electrical designs.

Product overview

Sumitomo Electric Bordnetze (SEBN) is a global system supplier of customized automotive wiring harnesses, offering complete solutions from concept development through series production. The product portfolio centers on two main categories: Cable Harnesses (Kabel Harness) as the core product, and Components (Komponenten) encompassing connectors, terminals, and charging systems. The company provides specialized high-voltage connectors (PT502, TKK, SUHV C280-1, Socket Type, 4.8 Type) and charging inlets supporting multiple standards (CCS1, CHAdeMo, GB-T, TYPE1, TYPE2) for electric vehicles. Additional offerings include ECU connectors (Microflex, 93-way, HPC1), terminal systems (0.5mm, SAK 12mm), flexible circuits (FPC, FFC), automotive tab-leads, optical wiring harnesses, and zonal wiring harness designs for next-generation vehicle architectures. The company also provides circular economy solutions supporting sustainable mobility.

Differentiator

Problem solved

Functional benefit

Products and services

• Cable Harness (Kabel Harness)
• Automotive Components (Komponenten)
• High-Voltage Connector Systems (PT502, TKK, Socket Type, SUHV C280-1, 4.8 Type, Plane Contact)
• EV Charging Inlets (CCS1 DC, CHAdeMO DC, GB-T DC/AC, Type 1 AC, Type 2 AC)
• ECU Connector Systems (Microflex, 93-way, HPC1, All-in-One)
• Zonal Wiring Harness
• Optical Wiring Harness
• E-Stealth Wire Harness
• Automotive FPC and FFC (Flexible Printed Circuits and Flexible Flat Cables)
• Sumitomo Ethernet Module (SEM)
• Automotive Tab-Leads
• Circular Economy Solutions for Wiring Harness Production

Named customers13 records

Segments2 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

Six partnerships are on record, tiered minor and core.

• Volkswagen AG (former)minorOthers · 1 January 1986Original founding partner in 1986 as Volkswagen Bordnetze GmbH. Volkswagen sold its stake in 2006 to Sumitomo Electric Industries and Sumitomo Wiring Systems.
• Siemens AG (former)minorOthers · 1 January 1986Original founding partner in 1986 as joint venture with Volkswagen AG and Siemens AG. Siemens sold its stake in 2006.
• Sumitomo Electric IndustriescoreOthersParent company of Sumitomo Electric Bordnetze SE. Part of Sumitomo Electric Group with roots dating back over 400 years. Provides global resources and R&D capabilities.
• Sumitomo Wiring Systems (SWS)coreOthersSister company within Sumitomo Electric Group. SEBN operates as a subsidiary together with SWS, both under the Sumitomo Electric Industries umbrella.
• CSEB (Changchun Sumitomo Electric Bordnetze)coreOthersJoint venture in China for wiring harness production. One of multiple Chinese JV operations including Suzhou, Chengdu, Wuzhou, Changsha, Qingdao, and Tianjin sites.
• SBN (Sumitomo Bordnetze)coreOthersJoint venture operation in China, part of the SEBN global network of manufacturing sites.

Scale indicators6 records

Recent moves14 records

Expansion highlights6 records

Direct peers

• Aptiv: Aptiv is one of the largest global Tier 1 suppliers of vehicle wiring harnesses, electrical architecture, and connectors, serving virtually all major OEMs including European and North American customers that overlap with SEBN's customer base.
• Leoni AG: Leoni is a European-headquartered specialist in wires, cables, and wiring systems for the automotive industry, directly comparable to SEBN as a Tier 1 supplier focused on automotive electrical distribution with strong European OEM relationships.
• Lear Corporation: Lear is a major global Tier 1 supplier with an E-Systems segment producing wiring harnesses, connectors, and electrical distribution products for automotive OEMs, directly competing with SEBN for European and global OEM programs.
• Furukawa Electric: Furukawa Electric is a Japanese manufacturer of automotive wires, wiring harnesses, and electronic components, serving global OEMs with similar product offerings and competing directly in harness and connector technologies with SEBN.
• Sumitomo Wiring Systems (SWS): SWS is SEBN's sister company within the Sumitomo Electric Group, producing wiring harnesses, connectors, and electrical components for automotive OEMs worldwide; the two companies share parent resources and overlap directly in products and customers.
• Yazaki Corporation: Yazaki is the world's largest wiring harness manufacturer by volume, supplying nearly all major OEMs globally with harness systems, connectors, and instrumentation—directly comparable in product portfolio, customer base, and global manufacturing footprint to SEBN.
• Samvardhana Motherson International: Motherson (via PKC Group and SMP) is a global Tier 1 supplier of wiring harnesses and interior modules, directly comparable to SEBN in product portfolio, low-cost-region manufacturing footprint, and global OEM customer base.
• THB Group (HarnSys): THB Group is a specialized automotive wiring harness and connector manufacturer with operations in Eastern Europe, China, and India, directly competing with SEBN for global OEM programs with similar product offerings.

Regional players

• Nexans Auto Electric: Nexans' automotive division supplies wiring harnesses and cables primarily to European OEMs with manufacturing operations in lower-cost regions, making it a regional peer comparable to SEBN's European business and similar product focus.

Broad incumbents

• TE Connectivity: TE Connectivity is a broad incumbent in connectivity and sensor solutions including automotive connectors, terminals, and harnesses; competes with SEBN's component portfolio across multiple end markets with much larger scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@sumitomoelectricbordnetze283
• LinkedInde.linkedin.com/company/sumitomo-electric-bordnetze-se

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries11 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sumitomo Electric Bordnetze