On Friday, March 20, 2026, the Czech holding company Czechoslovak Group (CSG) announced the strengthening of its presence in Poland through the full acquisition of Warsaw-based DOMAR MS, a manufacturer of connectors, cables, and electrical wiring harnesses, via its subsidiary Czechoslovak Group Polska.
Image: DOMAR MS
CSG Polska has signed a preliminary agreement to acquire DOMAR MS, one of Poland’s leading manufacturers of cabling, cable harnesses, electrical boxes, and a distributor of electrical connectors used in military systems and other specialized products. The transaction is expected to be finalized within the next few weeks, following the completion of the necessary formal and regulatory procedures. After completion, DOMAR MS will continue its current operations on the Polish market and, thanks to vertical integration within the CSG structure, will gain new opportunities for expansion into international markets.
The planned acquisition of DOMAR MS is CSG’s first acquisition on the Polish market and is part of the holding’s long-term strategy to develop its operations in Poland. This strategy assumes not only the delivery of modern solutions for the Polish Armed Forces, but also increasing the share of local production and expanding industrial capacity in Poland.
The integration of DOMAR MS into the CSG structure will strengthen the holding’s manufacturing capabilities and expand its supply chain in the area of key components for military systems and advanced technologies.
“The acquisition of DOMAR MS represents an important step in executing our strategy to strengthen vertical integration and build a resilient European supply chain for the defence industry. It brings key competencies in wiring harnesses and electrical connectors, which are essential components of all modern systems. The acquisition will also help us optimize production costs and accelerate the development of new systems,” said David Chour, Vice Chairman of the Board of Directors of CSG.
“This is CSG’s first acquisition in Poland and a strategically important step for our presence in this market. Bringing DOMAR MS into the CSG structure will not only preserve the company’s existing technological and manufacturing capabilities and the current level of employment, but will also create conditions for the company’s further long-term development,” said Wojciech Grzonka, President of the Management Board of CSG Polska and Vice President for Sales at CSG Group.
“We are planning investments in the facility and an increase in production capacity. In the first stage we will retain the entire current workforce of around 220 employees, and later this year employment will increase to approximately 300 people. Poland will remain the company’s primary market, and DOMAR MS will develop its cooperation with existing customers and business partners,” he added.
Following the completion of the transaction, DOMAR MS will continue to fulfill all existing contracts and obligations. At the same time, integration with CSG’s global structure will open up new opportunities for development and expansion into international markets.
“The inclusion of DOMAR MS in CSG’s global supply chain will create very favourable conditions for its further long-term development. It will open the way to securing new long-term contracts linked to major defence projects, while also providing strong capital and technological backing,” emphasized Wojciech Grzonka.
“The fact that we are becoming part of the CSG family opens a very exciting new chapter for our company. I am immensely proud of what we have achieved at DOMAR MS so far thanks to our dedicated employees, loyal customers and business partners. I am also pleased by the opportunities that lie ahead of us following CSG’s acquisition of the company. I very much look forward to the next stages of dynamic growth, so that, together with our new owner, we can meet the growing demands of the rapidly expanding defence market,” added Bolesław Janczewski, CEO of DOMAR MS.
DOMAR MS manufactures components of key importance to the defense industry. The company specializes in the production of cable harnesses, cabling, and specialized connectors used, among others, in military vehicles, radar systems, communications and electronics systems, as well as in the aerospace sector.
Poland is a key long-term market and a strategic partner for CSG. Recently, the holding signed a strategic industrial cooperation agreement with Polish Armaments Group (PGZ) and is also involved in projects such as the delivery of Tatra 6×6 chassis for the Modular Mine Laying System.
This transaction further strengthens the holding’s presence on the Polish market and confirms its ambitions to build strong manufacturing and technological capabilities in the country. At the same time, it will enhance CSG’s technological potential and increase the holding’s independence in the supply of strategic components for the defense industry.
The parties to the agreement have decided not to disclose the value of the transaction. The deal is subject to standard regulatory approvals, including clearance from the Office of Competition and Consumer Protection (UOKiK). The completion of the acquisition therefore depends on obtaining all necessary approvals and meeting standard closing conditions. CSG expects the approval process to proceed in line with standard practice and not to have a significant impact on the planned integration.
CSG expands into Poland.
We have signed a preliminary agreement to acquire Domar MS, a leading manufacturer of wiring harnesses and a distributor of specialised connectors for defence systems and advanced technologies.
A key step in strengthening our European footprint and… pic.twitter.com/aJKvSDx1wE
— CSG (@CSG_HOLDING) March 20, 2026