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DefDex

Supplier · United States

Materials Sciences

HQ United States

Naval composite-systems maker (sonar and acoustic mitigation, subsea and surface propulsion, missile and amphibious launch products); acquired by Karman Space & Defense on 2026-02-03 in a $220M deal covering Seemann and MSC.

Supplier
Website

Sources3

  1. 1
    CompanyKarman Space & Defense Completes Acquisition of Seemann Composites and MSC, Increases Incremental Term Loan

    Business Wire via Nasdaq (Karman) · Feb 5, 2026 · Supports Organization · acquired on

    “on February 3, 2026, creating a multi-domain leader in critical sub-systems for key space and defense programs.”
  2. 2
    CompanyKarman Space & Defense Expands into High-Priority Maritime Defense Market with Agreement to Acquire Seemann Composites and Materials Sciences

    Karman Space & Defense · Jan 7, 2026 · Supports Organization

    “Seemann Composites, LLC (“Seemann”) and Materials Sciences LLC (“MSC”) are rapidly growing providers of “bow-to-stern” composite systems”
  3. 3
    CompanyMSC: Materials | Structures | Composites

    Materials Sciences LLC · Supports Organization · website

    “Materials Sciences LLC is committed to delivering quality design, engineering, customized manufacturing and testing services in the field of composite and advanced materials and structures for military, commercial, scientific and technological applications.”

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