What DOMAR MS does

DOMAR MS is a Warsaw-based Polish contract manufacturer founded in 1993 by Mariusz Dowbor, specializing in cable harnesses, power and signal cabling, and specialized electrical boxes for defense, military, aviation and aerospace customers. The firm operates as a tier-2/3 supplier into the European defense industrial base, serving the explicitly named "Defense Systems Industry" end-segment alongside aviation and aerospace programs, with manufacturing carried out under defense-grade quality systems.

The company's core offering is build-to-print and build-to-spec wire harness and electromechanical assembly work, executed with in-house CAD-based harness design and validated through DIT-MCO automated electrical test equipment. Production is supported by qualified partnerships with tier-1 connector OEMs — SOURIAU-Sunbank by Eaton (a founding-tier partner since 2007), Nicomatic, and Glenair — and the firm holds SOURIAU QPL status, allowing it to assemble harnesses against qualified connector specifications. Its certification stack — AS/EN 9100 (aerospace quality, since 2013), ISO 9001, NCAGE, Polish MSWiA concession, and IPC/WHMA-A-620 (since 2014) — positions the shop to qualify directly onto Western and Polish defense and aerospace platforms.

Commercially, DOMAR operates a contract-manufacturing model with revenue tied to defense and aerospace program lifecycles rather than spot distribution. Pricing is project/contract-based, gated by multi-year qualification cycles that effectively lock in incumbents once a platform design is approved. The business has been built up over three decades to approximately 220 employees, with active hiring toward 300, and was acquired in March 2026 by Czechoslovak Group through CSG Polska, integrating the company into a pan-European defense industrial group with broader geographic reach and capital backing.

Name

DOMAR MS

Legal name

DOMAR MS Spółka z ograniczoną odpowiedzialnością

Website

https://domar.waw.pl

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

101–250 employees

Short description

DOMAR MS is a Warsaw-based Polish contract manufacturer, founded 1993, producing cable harnesses, cabling and electrical boxes for European defense, military, aviation and aerospace customers, recently acquired by Czechoslovak Group via CSG Polska.

Ownership category

akta.pro rank

Product category

Defense & Aerospace Electrical Interconnection Components

NAICS

Other Communication and Energy Wire Manufacturing (335929), Other Electronic Component Manufacturing (334419), Wiring Device Manufacturing (33593), Communication and Energy Wire and Cable Manufacturing (33592)

SIC

Electronic Connectors (3678), Electrical Industrial Apparatus (3620), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Avionics Integration, Wiring Harnesses & Installation Kits (IMABAFAL)

akta.pro secondary industries

Connectors, Jacks & Couplers (RJ45/LC/SC/MPO/MTP) (HDAFALAD), Data, Communications & Fiber Optic Cable (IMADAMAD)

Keywords

• Defense cable harnesses
• Military electrical connectors
• Aerospace wiring systems
• Fibre-optic assemblies
• Electrical connection components

Headquarters

HQ city

Warsaw

HQ country

Poland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. Defense and Military Wiring Harnesses: DOMAR MS generates revenue through the manufacture and distribution of specialized cabling, cable harnesses, and electrical connectors for defense systems, military vehicles, radar, and aerospace applications. The company also provides distribution of electrical connectors and electronic components, serving as both a manufacturer and distributor in the electrical connection systems market.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

DOMAR MS manufactures and assembles specialised cable wiring harnesses, MIL-spec electrical connectors (including QPL-certified MIL-DTL-38999 Series III from SOURIAU, plus MIL-DTL-26482 and MIL-DTL-55116), and fibre-optic systems for defense, military vehicles, radar, aviation, and aerospace applications. Alongside manufacturing, the company operates a distribution arm supplying connectors, cables, wires, EMI/RFI/EMC shielding, accessories, tools, and electronic components to industrial customers in Poland and Europe. Production is conducted under AS 9100 Rev D / EN 9100:2018, ISO 9001:2015, and IPC/WHMA-A-620 certified processes with DIT-MCO multipoint testing.

Product overview

DOMAR MS is a specialized Polish manufacturer and distributor of electrical connection systems, operating as part of CSG (Czechoslovak Group). The company offers a comprehensive portfolio centered on cable wiring harnesses for defense, military, radar, aerospace, and aviation applications. The product ecosystem includes electrical connectors (MIL-DTL-38999 series III, MIL-DTL-26482, MIL-DTL-55116), cable harnesses, and fibre-optic systems as core offerings. These are supported by a distribution arm supplying cables, wires, EMI/RFI/EMC shielding products, accessories, and electronic components. The company also provides assembly services and maintains certifications including AS 9100 Rev D / EN 9100:2018 and ISO 9001:2015 for aerospace, space, and defence sector manufacturing.

Differentiator

Problem solved

Functional benefit

Products and services

• Cable Wiring Harnesses Specialised manufacturing and assembly of cable wiring harnesses for defense systems, military vehicles, radar equipment, and aerospace platforms, produced to individual customer specifications under AS 9100 Rev D / EN 9100:2018, ISO 9001:2015, and IPC/WHMA-A-620 certified processes.
• MIL-Spec Electrical Connectors (MIL-DTL-38999 Series III, MIL-DTL-26482, MIL-DTL-55116, fibre-optic) Assembly and distribution of 'MADE IN POLAND' MIL-DTL-38999 Series III electrical connectors with QPL certification from SOURIAU VAD, plus MIL-DTL-26482, MIL-DTL-55116, and fibre-optic connectors, serving aerospace, military, and defense applications.
• Fibre-Optic Systems Comprehensive production and assembly of fibre-optic systems for aerospace and defense applications, integrated into DOMAR's wiring harness manufacturing portfolio.
• Electrical Connection Components Distribution (Cables, Wires, Accessories, Tools) Distribution of single and multi-core cables and wires, heat-shrinkable tubing, marking systems, accessories, and tools for wiring harness production, serving industrial customers and resellers in Poland and Europe.
• EMI/RFI/EMC Shielding Products Distribution Distribution of seals, braided sleevings, foam and elastomer seals, and other EMI/RFI/EMC screening products supporting electromagnetic compatibility in defense, aerospace, and industrial applications.
• Electrical and Electronic Components Distribution Distribution of capacitors, fuses, electrical relays/switches, position sensors, slip rings, and other electronic components for industrial and defense customers.

Named customers1 record

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• CSG (Czechoslovak Group) / CSG PolskacoreStrategic or Co-development Partner · 20 March 2026CSG, a global industrial-technology group, through its subsidiary CSG Polska, has signed a preliminary agreement to acquire DOMAR MS. This is CSG's first acquisition in Poland and marks its entry into the Polish market. Following the acquisition, DOMAR MS will gain access to CSG's global supply chain for international expansion while maintaining its operations in Poland.
• Souriau-Sunbank by EatoncoreTechnology or IntegrationPartnership with Souriau-Sunbank by Eaton for distribution and assembly of MIL-DTL-38999 Series III connectors. DOMAR MS holds QPL certification from SOURIAU for final assembly of 8D (aluminium) SOURIAU products. Souriau is described as one of the leaders on the electrical connectors market and was the original founding partner when DOMAR was established in 1993.

Scale indicators3 records

Recent moves7 records

Expansion highlights4 records

Direct peers

• Radiall: French manufacturer of RF and microwave interconnect solutions for aerospace, defense, and industrial markets; a current DOMAR partner and direct competitor in defense RF interconnect.
• Glenair: US manufacturer of military-spec and commercial interconnect solutions — a current DOMAR distribution/technology partner and a competitor in the same MIL-spec aerospace and defense connector market.
• Carlisle Interconnect Technologies: A major US-based manufacturer of harsh-environment cable assemblies, wire harnesses, and connectors for aerospace and defense — the closest large-scale analog to DOMAR's core harness business for military vehicles and avionics.
• Smiths Interconnect: Specialty manufacturer of high-reliability interconnect and cable harness solutions for aerospace, defense, and industrial markets — directly comparable product/market overlap with DOMAR's defense cable harness and connector offering.
• Souriau-Sunbank (Eaton): Original equipment designer of MIL-DTL-38999 Series III connectors and DOMAR's foundational technology partner (since 1993); a direct peer in connector design, manufacturing, and QPL program management.
• AB Connectors (TT Electronics): UK-based specialist in military-spec circular connectors and cable assemblies for land, sea, and air platforms — comparable product offering and defense/aerospace customer base to DOMAR's Polish operations.
• Nicomatic: French designer of micro and ruggedized connectors (DMM, CMM, Microflex) for aerospace and defense; listed DOMAR partner for the same micro-connector product families used on European defense platforms.

Broad incumbents

• Amphenol: One of the world's largest manufacturers of electronic and fiber-optic connectors, including MIL-DTL-38999 Series III equivalents; a key competitor in the military/aerospace connector market where DOMAR also operates.
• TE Connectivity: Global leader in connectors and sensors across aerospace, defense, industrial, and automotive; broad incumbent competing with DOMAR for MIL-spec sockets and serving as an alternate supplier to many of the same defense primes.

Regional players

• Zettler Group: European electrical/electronic components manufacturer and distributor with strong DACH-region defense/aerospace presence; relevant regional peer given DOMAR's European-only current operating footprint and distribution business model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/DOMAR.WAW
• LinkedInlinkedin.com/company/about

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 DOMAR MS