CSG Expands Defense Portfolio with Strategic Stake in Austrian Munitions Specialist

European defense contractor CSG N.V. expands its artillery portfolio with a strategic stake in Austrian mortar specialist Hirtenberger, following a year of 71.7% revenue growth.

European defense contractor CSG N.V. has moved to bolster its artillery and munitions segment through a strategic investment. The company acquired a 49% stake in Hirtenberger Defence Systems (HDS), an Austrian firm specializing in mortar systems, on March 31, 2026. The shareholding was purchased from the Hungarian technology group 4iG.

This transaction allows CSG to address a specific gap in its product lineup. HDS is a well-established manufacturer within the mortar systems niche, a sector experiencing growing demand as European nations increase their defense budgets. CSG, already a global leader in the production of small-caliber ammunition, finds the acquisition a complementary fit that broadens its existing defense portfolio.

The strategic move follows closely on the heels of CSG's strong annual financial report, released on March 28, 2026. The company posted revenue of €6.7 billion for fiscal year 2025, representing a substantial 71.7% increase compared to the previous year. Management also reaffirmed its earnings forecast for 2026.

CSG's shares have been trading on the Euronext Amsterdam exchange since January 23, 2026. Despite the company's operational growth, the stock currently trades approximately 26% below its post-IPO peak of €33.81. This discount highlights the significant expectations already priced into the equity.

The investment in HDS is more than a simple acquisition; it signals CSG's proactive strategy to leverage its post-listing phase for targeted portfolio expansion. The company is positioning itself to capitalize on anticipated government contracts from within the NATO alliance, which are expected to provide stable medium-term demand for its enhanced range of defense products.